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Finance and Economics Discussion Series: Data for paper 201418

Small Price Responses to Large Demand Shocks

Etienne Gagnon and David Lopez-Salido

Figure 1: Impact of 2003 Southern California supermarket strike on quantities and prices

Quantity index: Week Quantity index: On strike Quantity index: Not on strike Price index: Week Price index: On strike Price index: Not on strike Relative price controlling for basket composition (cost in stores on strike relative to cost in stores not on strike): Week Relative price controlling for basket composition (cost in stores on strike relative to cost in stores not on strike): Fixed basket Relative price controlling for basket composition (cost in stores on strike relative to cost in stores not on strike): On-strike basket Relative price controlling for basket composition (cost in stores on strike relative to cost in stores not on strike): Not-on-strike basket
1232 1.007 0.97198 1232 0.98316 0.98741 1232 1.0359 0.98607 1.0896
1233 1.0452 1.0338 1233 0.99367 0.99092 1233 1.0458 0.99735 1.1034
1234 0.97482 0.95422 1234 0.99295 0.99539 1234 1.028 0.99007 1.0821
1235 1.0025 0.99367 1235 0.99297 0.99389 1235 1.0414 1.0042 1.0903
1236 0.99345 0.95821 1236 0.99036 0.98553 1236 1.0394 1.0027 1.09
1237 1.0285 0.9924 1237 0.98639 0.9853 1237 1.0386 0.991 1.0993
1238 1.0391 1.0136 1238 0.99169 0.98628 1238 1.0268 0.9746 1.085
1239 1.0224 0.99072 1239 0.99143 0.99178 1239 1.0496 1.0065 1.1076
1240 0.96374 0.94667 1240 0.99483 0.99029 1240 1.0373 0.99768 1.0865
1241 0.97691 0.97802 1241 1.0026 0.9935 1241 1.0353 1.0029 1.1007
1242 0.98089 0.99157 1242 0.994 0.99585 1242 1.0457 1.0043 1.1061
1243 0.99384 0.99262 1243 1.0057 1.0041 1243 1.0408 1.0099 1.0982
1244 1.0026 1.0325 1244 1.0058 1.0078 1244 1.047 1.014 1.0983
1245 0.98036 0.98591 1245 1.0075 1.0102 1245 1.0499 1.0119 1.1172
1246 0.97593 1.0015 1246 1.0098 1.011 1246 1.0526 1.0053 1.1071
1247 0.9953 0.98577 1247 1.0127 1.0145 1247 1.0488 1.0071 1.1098
1248 1.0014 1.0163 1248 1.0064 1.0084 1248 1.043 0.99645 1.103
1249 1.0071 1.0213 1249 1.0057 1.0042 1249 1.0341 0.99471 1.0946
1250 1.0055 1.0214 1250 1.0081 1.0047 1250 1.042 0.99959 1.1021
1251 1.014 1.0386 1251 1.0038 1.0044 1251 1.0407 1.0031 1.0892
1252 1.0092 1.0308 1252 1.0063 1.0068 1252 1.0373 1.0099 1.077
1253 0.98243 1.0189 1253 1.0006 1.0085 1253 1.0514 1.01 1.0948
1254 1.0002 1.0194 1254 1.0111 1.0068 1254 1.0477 1.0098 1.0906
1255 0.98803 0.99535 1255 1.0039 1.0067 1255 1.0494 1.0037 1.0898
1256 1.0033 0.99775 1256 1.0055 1.0042 1256 1.0337 0.99453 1.0848
1257 1.0112 1.0252 1257 0.9939 1.0023 1257 1.0333 0.97375 1.094
1258 0.86561 1.037 1258 0.99581 1.0065 1258 1.0328 0.99768 1.0784
1259 0.36354 1.3816 1259 1.0015 1.0156 1259 1.0163 0.9758 1.0498
1260 0.45018 1.4177 1260 0.99328 1.0264 1260 1.0155 0.97078 1.0411
1261 0.53162 1.4372 1261 0.99043 1.0176 1261 1.0371 0.98449 1.0757
1262 0.50226 1.4118 1262 1.0179 1.0118 1262 1.0144 0.97028 1.0623
1263 0.48441 1.3564 1263 1.0053 1.0125 1263 1.0363 0.99903 1.0917
1264 0.51008 1.3465 1264 1.0184 1.0188 1264 1.0432 1.0088 1.0934
1265 0.43212 1.3992 1265 1.0119 1.0253 1265 1.0568 1.0113 1.1159
1266 0.45195 1.3417 1266 1.0231 1.0227 1266 1.0299 0.99012 1.067
1267 0.48317 1.3403 1267 1.0134 1.0297 1267 1.043 1.0008 1.0773
1268 0.49051 1.3014 1268 1.0315 1.037 1268 1.048 1.0168 1.0806
1269 0.49283 1.2923 1269 1.0306 1.0376 1269 1.0441 1.0014 1.0815
1270 0.51902 1.3404 1270 1.0148 1.0237 1270 1.0464 0.98716 1.0885
1271 0.51716 1.3767 1271 1.0296 1.0163 1271 1.0377 0.97902 1.0745
1272 0.50758 1.3249 1272 1.0246 1.0201 1272 1.0421 0.98288 1.0945
1273 0.51144 1.3498 1273 1.0096 1.0139 1273 1.0347 0.99085 1.0904
1274 0.53841 1.386 1274 1.0122 1.0084 1274 1.0458 0.99251 1.1152
1275 0.48668 1.2855 1275 1.0159 1.0202 1275 1.0545 1.0023 1.1016
1276 0.51316 1.3325 1276 1.0162 1.0214 1276 1.0465 0.99399 1.0883
1277 0.52488 1.3505 1277 1.0049 1.0309 1277 1.0383 0.95891 1.0835
1278 0.58814 1.2512 1278 1.0192 1.0312 1278 1.0207 0.95541 1.0703
1279 0.85011 1.125 1279 1.008 1.0174 1279 1.0407 0.98192 1.0932
1280 0.92636 1.0892 1280 1.0011 1.0119 1280 1.0433 0.96793 1.0908
1281 0.88885 1.0706 1281 1.0046 1.0087 1281 1.0542 0.98267 1.1294
1282 0.85849 1.0436 1282 1.0099 1.0125 1282 1.0512 0.98323 1.1487
1283 0.90989 1.0819 1283 1.0017 1.0072 1283 1.036 0.97498 1.0928
1284 0.94786 1.1127 1284 0.99325 1.0164 1284 1.0207 0.97414 1.0811
1285 0.85169 0.99077 1285 1 1.0147 1285 1.0692 1.0115 1.1496
1286 0.89996 1.0816 1286 1.0032 1.0087 1286 1.0463 0.99932 1.1015
1287 0.92209 1.0631 1287 1.0069 1.0094 1287 1.0615 1.0043 1.1229
1288 0.92249 1.0953 1288 1.0111 1.0139 1288 1.0606 1.0108 1.1225
1289 0.90431 1.0778 1289 1.0134 1.0127 1289 1.059 1.0032 1.1319
1290 0.85446 1.0089 1290 1.0071 1.019 1290 1.0485 0.99368 1.1003
1291 0.88586 0.99842 1291 1.006 1.0145 1291 1.0554 1.009 1.1213
1292 0.96936 1.1512 1292 1.0031 1.0057 1292 1.0644 1.0123 1.1132
1293 0.89079 1.0775 1293 1.0061 1.0084 1293 1.0572 1.0092 1.1071
1294 0.8935 1.0636 1294 1.0123 1.0084 1294 1.0641 1.0119 1.1181
1295 0.85993 1.0208 1295 1.0174 1.0189 1295 1.0336 0.98498 1.078
1296 0.92355 1.0151 1296 1.0107 1.0229 1296 1.0455 1.0022 1.103
1297 0.90393 1.0595 1297 1.0131 1.0189 1297 1.0511 1.0013 1.0933
1298 0.91571 1.0818 1298 1.0116 1.0149 1298 1.0474 0.9986 1.1111
1299 0.92591 1.0721 1299 0.99544 1.0047 1299 1.0549 1.0086 1.1044
1300 0.9016 1.0711 1300 1.0117 1.011 1300 1.0525 1.0138 1.1083
1301 0.89179 1.0501 1301 1.0124 1.0122 1301 1.0635 1.0199 1.1248
1302 0.88777 1.0662 1302 1.0146 1.0166 1302 1.0501 1.0075 1.0987
1303 0.89486 1.0479 1303 1.0129 1.0159 1303 1.0695 1.013 1.1294
1304 0.847 1.0171 1304 1.0209 1.0136 1304 1.0376 1.0022 1.0971
1305 0.88446 1.0128 1305 1.005 1.0127 1305 1.0642 1.0275 1.1136
1306 0.94432 1.1067 1306 1.0058 1.0065 1306 1.0746 1.0307 1.1194
1307 0.91319 1.0375 1307 1.0158 1.0064 1307 1.0637 1.022 1.1445
1308 0.91265 1.0549 1308 1.0115 1.0065 1308 1.0641 1.0206 1.1367
1309 0.88972 1.0516 1309 1.0246 1.0106 1309 1.0633 1.0148 1.1078
1310 0.90005 1.0396 1310 1.0188 1.0089 1310 1.0641 1.0174 1.1091
1311 0.9075 1.0495 1311 1.0134 1.0088 1311 1.0649 1.0143 1.1479
1312 0.89812 0.988 1312 1.013 1.0114 1312 1.0567 1.0122 1.1259
1313 0.91347 0.9982 1313 1.0146 1.0079 1313 1.0763 1.0288 1.1333
1314 0.88472 1.0095 1314 1.0208 1.0048 1314 1.0783 1.0321 1.1389
1315 0.90085 1.0107 1315 1.0164 0.99782 1315 1.0599 1.029 1.1057
1316 0.89097 0.96819 1316 1.0124 1.002 1316 1.0591 1.0281 1.1086
1317 0.90574 1.0262 1317 1.0109 1.0086 1317 1.0717 1.0271 1.1525
1318 0.89474 1.0232 1318 1.022 1.005 1318 1.0807 1.0393 1.1369
1319 0.89624 1.0164 1319 1.0225 1.0099 1319 1.0754 1.0438 1.1316
1320 0.90413 1.0035 1320 1.0142 1.006 1320 1.0926 1.0598 1.1384
1321 0.92849 1.0543 1321 1.0166 0.99916 1321 1.0757 1.0286 1.1455
1322 0.90885 0.99605 1322 1.0157 1.0027 1322 1.0731 1.0324 1.1279
1323 0.91552 1.0066 1323 1.0208 1.0135 1323 1.0856 1.048 1.1266
1324 0.87941 0.98223 1324 1.0284 1.0059 1324 1.0718 1.0314 1.1257
1325 0.93551 1.0338 1325 1.0184 0.99988 1325 1.0609 1.0044 1.1085
1326 0.88964 0.96059 1326 1.0234 1.0022 1326 1.0468 0.99313 1.1018
1327 0.95035 1.019 1327 1.0098 1.0041 1327 1.0632 1.0176 1.1173
1328 0.91707 0.99328 1328 1.0149 0.99722 1328 1.0699 1.0278 1.1231
1329 0.91457 0.99823 1329 1.019 1.0077 1329 1.0787 1.0318 1.1292
1330 0.91386 0.98659 1330 1.022 1.0072 1330 1.0697 1.0172 1.1127
1331 0.92617 0.99565 1331 1.0164 1.0103 1331 1.0682 1.0181 1.1236
1332 0.88734 1.0079 1332 1.0186 1.0086 1332 1.0612 1.0273 1.1056
1333 0.92456 1.0068 1333 1.0071 1.0117 1333 1.0587 1.0138 1.1091
1334 0.98056 1.053 1334 1.0073 1.005 1334 1.0611 1.0155 1.1263
1335 0.88512 0.96134 1335 1.0106 1.0104 1335 1.0596 1.0145 1.1182
1336 0.90579 0.99096 1336 1.0169 1.0061 1336 1.0741 1.0435 1.1198

Figure 2: Some key pricing features of the 2003 Southern California supermarket strike

Frequency of price changes: Week Frequency of price changes: On strike Frequency of price changes: Not on strike Frequency of regular price changes: Week Frequency of regular price changes: On strike Frequency of regular price changes: Not on strike Share of items on sale: Week Share of items on sale: On strike Share of items on sale: Not on strike Mean discount: Week Mean discount: On strike Mean discount: Not on strike Share of revenues from items on sale: Week Share of revenues from items on sale: On strike Share of revenues from items on sale: Not on strike Week On strike Not on strike
1232 44.338 36.051 1232 17.106 15.493 1232 26.909 19.852 1232 9.8685 7.8453 1232 33.685 27.534 1232 49.577 59.553
1233 46.183 36.262 1233 18.302 15.821 1233 23.537 19.702 1233 10.505 8.0751 1233 32.122 29.594 1233 57.137 59.569
1234 42.601 35.792 1234 17.258 15.587 1234 24.654 18.805 1234 9.1942 7.4202 1234 31.736 28.983 1234 53.916 57.827
1235 47.236 33.67 1235 19.678 14.614 1235 23.874 17.608 1235 9.1071 7.0933 1235 30.22 25.888 1235 53.123 59.56
1236 46.453 33.322 1236 19.277 14.008 1236 23.07 19.109 1236 9.4583 7.5434 1236 30.87 26.997 1236 54.633 59.047
1237 45.829 34.916 1237 19.956 15.795 1237 24.561 18.598 1237 10.211 7.9663 1237 32.733 25.858 1237 52.39 59.055
1238 47.333 35.855 1238 19.973 16.09 1238 23.14 17.918 1238 10.057 8.8552 1238 32.817 27.918 1238 53.328 60.096
1239 49.637 36.541 1239 21.396 16.473 1239 25.027 18.666 1239 10.23 8.3063 1239 33.812 30.259 1239 50.936 57.945
1240 46.682 36.163 1240 20.299 17.083 1240 22.867 18.848 1240 8.8188 7.9278 1240 30.535 28.687 1240 55.519 57.956
1241 41.343 34.694 1241 18.442 17.098 1241 22.243 18.549 1241 8.6322 8.2417 1241 29.759 28.833 1241 55.741 59.636
1242 46.558 35.675 1242 18.976 15.888 1242 25.39 19.543 1242 9.6179 9.3162 1242 33.207 30.923 1242 50.818 56.247
1243 45.467 32.773 1243 18.302 13.365 1243 21.949 17.493 1243 10.142 8.6448 1243 31.074 27.851 1243 55.694 59.392
1244 44.651 32.037 1244 17.868 13.986 1244 24.442 18.102 1244 8.7279 8.8341 1244 31.184 27.701 1244 51.598 58.225
1245 44.139 34.887 1245 18.825 15.94 1245 21.352 16.906 1245 9.0007 8.1721 1245 28.647 26.532 1245 56.478 59.591
1246 42.531 32.204 1246 18.922 14.575 1246 21.563 16.204 1246 8.1618 8.5899 1246 27.506 25.315 1246 53.246 60.472
1247 46.293 31.19 1247 21.217 15.08 1247 21.066 15.14 1247 9.065 7.4674 1247 28.316 22.937 1247 53.46 61.467
1248 45.666 33.749 1248 20.901 15.799 1248 22.224 17.576 1248 9.3578 9.0255 1248 27.679 25.286 1248 52.201 60.592
1249 44.318 33.59 1249 19.597 15.616 1249 22.611 18.347 1249 9.5833 8.9396 1249 29.624 27.235 1249 54.921 61.375
1250 45.1 34.582 1250 20.66 14.125 1250 22.296 19.876 1250 8.8401 8.9199 1250 28.447 30.603 1250 52.124 61.161
1251 47.056 32.865 1251 21.798 14.276 1251 22.984 18.689 1251 9.2721 9.2382 1251 29.156 27.711 1251 52.698 60.926
1252 45.718 33.423 1252 22.512 14.615 1252 21.568 17.606 1252 9.6694 8.0887 1252 28.896 24.243 1252 52.45 60.015
1253 47.745 34.207 1253 22.261 15.25 1253 22.917 17.964 1253 9.1716 8.1595 1253 29.457 26.613 1253 50.34 60.035
1254 45.742 32.452 1254 21.74 13.889 1254 21.806 18.045 1254 8.9725 8.821 1254 28.657 27.308 1254 54.438 62.171
1255 46.646 32.015 1255 21.198 13.676 1255 23.636 16.779 1255 9.8358 7.6483 1255 30.231 24.506 1255 51.985 62.476
1256 48.915 33.121 1256 21.647 15.118 1256 23.24 17.427 1256 9.5833 7.8342 1256 29.371 25.916 1256 51.849 61.457
1257 48.972 34.65 1257 21.066 16.096 1257 24.562 17.728 1257 10.365 8.6693 1257 31.399 27.623 1257 51.49 60.668
1258 48.326 32.714 1258 20.287 15.554 1258 22.859 16.774 1258 10.61 8.1791 1258 31.634 25.711 1258 57.37 62.776
1259 39.124 31.735 1259 14.401 15.147 1259 22.964 15.904 1259 7.8945 6.5907 1259 26.801 22.546 1259 54.673 61.903
1260 40.709 29.174 1260 14.641 12.449 1260 21.797 15.436 1260 8.4591 5.0338 1260 26.503 20.545 1260 56.427 62.592
1261 42.492 30.571 1261 15.408 11.732 1261 22.821 17.067 1261 11.117 5.8772 1261 30.693 22.858 1261 53.055 60.098
1262 40.759 33.079 1262 15.822 12.875 1262 17.544 18.11 1262 10.132 8.0385 1262 26.013 25.806 1262 57.172 61.539
1263 39.33 31.392 1263 16.653 13.599 1263 18.78 18.958 1263 9.1713 7 1263 24.396 22.632 1263 55.766 60.999
1264 39.709 29.859 1264 17.699 11.105 1264 17.719 17.976 1264 8.0825 7.3922 1264 22.337 23.755 1264 56.1 64.24
1265 45.472 28.833 1265 20.738 12.352 1265 23.076 17.179 1265 8.1794 6.8966 1265 25.911 26.767 1265 52.451 63.683
1266 43.847 33.465 1266 18.696 13.896 1266 19.581 16.995 1266 7.6235 6.1754 1266 22.035 24.124 1266 61.526 60.67
1267 41.029 29.342 1267 16.222 13.035 1267 23.355 15.197 1267 8.6795 5.806 1267 26.349 22.369 1267 53.218 62.567
1268 40.115 30.281 1268 15.868 14.277 1268 19.224 13.772 1268 8.4962 5.2873 1268 26.121 22.179 1268 58.273 64.532
1269 37.837 29.485 1269 15.592 13.862 1269 21.232 13.994 1269 8.1349 4.983 1269 27.493 20.939 1269 56.555 66.132
1270 38.661 30.171 1270 14.79 13.496 1270 24.041 17.224 1270 10.022 6.9816 1270 31.57 26.002 1270 54.965 64.15
1271 39.336 30.005 1271 14.801 12.834 1271 20.477 16.943 1271 9.948 8.3179 1271 29.428 26.599 1271 58.185 62.475
1272 40.883 33.158 1272 16.899 14.263 1272 21.294 17.766 1272 10.025 8.2434 1272 29.195 27.273 1272 54.133 61.028
1273 44.496 32.179 1273 16.408 13.472 1273 23.904 19.042 1273 10.027 8.3106 1273 30.262 26.043 1273 53.009 62.434
1274 42.658 30.297 1274 15.844 11.548 1274 25.531 18.156 1274 10.493 6.8408 1274 31.323 25.649 1274 54.829 61.481
1275 44.551 33.678 1275 15.385 13.965 1275 25.254 17.146 1275 10.004 6.6164 1275 31.477 25.204 1275 53.466 59.275
1276 42.615 35.818 1276 14.965 17.262 1276 24.421 17.183 1276 9.9949 6.8265 1276 30.611 23.664 1276 57.217 62.575
1277 41.271 28.667 1277 14.01 11.946 1277 25.834 17.154 1277 9.9 6.2506 1277 32.746 24.448 1277 54.556 63.228
1278 40.392 29.418 1278 13.327 11.966 1278 21.179 15.748 1278 10.107 6.4456 1278 29.616 23.417 1278 59.56 62.053
1279 39.972 29.518 1279 13.583 11.128 1279 24.346 17.389 1279 11.619 7.7977 1279 33.365 27.809 1279 57.93 66.326
1280 44.054 26.252 1280 15.544 10.759 1280 25.057 18.483 1280 12.26 9.2189 1280 34.673 29.104 1280 55.822 63.905
1281 46.3 29.432 1281 16.675 10.481 1281 25.19 20.614 1281 12.128 9.4772 1281 33.647 32.659 1281 54.443 61.104
1282 46.158 31.918 1282 16.878 9.993 1282 23.565 18.008 1282 11.326 8.5962 1282 31.886 29.204 1282 55.144 62.013
1283 45.962 32.431 1283 17.103 12.378 1283 26.635 17.685 1283 12.052 10.075 1283 34.971 27.953 1283 54.274 61.425
1284 48.863 31.083 1284 17.402 12.461 1284 27.731 17.802 1284 13.932 9.1999 1284 37.418 27.663 1284 52.304 61.67
1285 47.907 32.069 1285 17.343 12.501 1285 25.484 18.405 1285 11.771 9.264 1285 33.142 29.427 1285 55.409 61.607
1286 46.985 32.322 1286 17.26 11.957 1286 25.202 19.193 1286 11.26 10.444 1286 33.047 30.109 1286 53.329 62.091
1287 47.228 31.822 1287 17.136 12.006 1287 25.586 18.661 1287 12.316 9.4852 1287 33.923 26.844 1287 53.586 62.336
1288 48.86 33.279 1288 18.387 14.767 1288 26.31 18.159 1288 11.744 9.7952 1288 34.208 26.937 1288 51.911 61.743
1289 47.208 36.209 1289 16.713 16.558 1289 26.439 19.625 1289 11.065 10.226 1289 33.554 30.63 1289 53.194 60.499
1290 47.817 34.306 1290 16.725 14.513 1290 27.412 18.227 1290 11.039 8.9881 1290 34.347 29.424 1290 52.713 62.393
1291 45.054 33.546 1291 16.449 14.048 1291 26.297 17.387 1291 12.025 8.0458 1291 33.297 24.786 1291 54.689 63.012
1292 46.468 33.85 1292 17.397 14.011 1292 26.566 20.268 1292 12.364 9.5504 1292 34.608 28.873 1292 52.293 61.003
1293 50.384 35.443 1293 18.846 13.874 1293 25.862 21.223 1293 11.372 9.6864 1293 32.105 30.443 1293 51.104 61.299
1294 47.384 36.269 1294 18.878 13.893 1294 24.646 21.04 1294 11.76 9.2836 1294 33.274 28.871 1294 53.283 61.111
1295 45.901 34.935 1295 18.06 14.631 1295 24.607 18.513 1295 10.389 9.1183 1295 31.499 26.402 1295 50.985 62.058
1296 47.781 32.639 1296 18.701 13.521 1296 24.701 16.617 1296 11.566 7.8033 1296 32.85 22.825 1296 53.505 63.362
1297 48.573 32.388 1297 18.836 15.304 1297 25.238 17.24 1297 10.435 8.0221 1297 32.015 24.116 1297 51.207 63.529
1298 48.101 34.342 1298 18.959 15.991 1298 25.835 18.9 1298 10.744 8.4807 1298 32.666 28.772 1298 53.565 63.681
1299 49.282 33.817 1299 19.162 13.737 1299 28.018 19.745 1299 11.52 9.8765 1299 33.915 28.896 1299 52.078 63.798
1300 48.246 33.32 1300 19.793 13.853 1300 25.062 18.506 1300 9.9735 7.9916 1300 31.843 26.074 1300 53.804 63.054
1301 47.398 35.65 1301 19.024 15.325 1301 24.852 18.73 1301 9.6845 7.8628 1301 31.533 24.757 1301 53.895 63.494
1302 48.878 32.75 1302 19.735 13.924 1302 24.919 17.469 1302 9.4407 9.1207 1302 31.021 25.072 1302 52.229 63.27
1303 50.627 32.247 1303 22.15 13.554 1303 24.181 18.336 1303 10.425 8.3662 1303 31.837 28.35 1303 53.563 63.414
1304 45.545 33.084 1304 19.583 11.47 1304 22.43 19.22 1304 9.5926 8.9739 1304 29.787 29.316 1304 55.967 63.124
1305 47.981 31.2 1305 19.473 10.794 1305 26.284 17.733 1305 10.823 8.7561 1305 31.955 27.377 1305 51.299 66.359
1306 49.814 33.222 1306 19.814 12.616 1306 25.978 19.35 1306 10.347 9.1287 1306 32.314 29.162 1306 52.404 63.274
1307 48.067 33.181 1307 18.729 13.789 1307 25.568 19.985 1307 10.368 9.4168 1307 32.245 29.035 1307 51.064 62.097
1308 49.991 34.749 1308 19.733 12.102 1308 26.018 19.889 1308 9.7383 10.837 1308 32.346 32.092 1308 48.93 63.397
1309 49.276 30.422 1309 20.965 9.9982 1309 23.138 20.227 1309 9.6709 9.406 1309 28.736 31.876 1309 52.365 64.271
1310 47.185 29.954 1310 19.884 8.8111 1310 24.573 20.851 1310 9.6079 8.2742 1310 29.973 29.75 1310 52.363 64.454
1311 49.117 30.761 1311 19.593 10.627 1311 25.951 20.088 1311 9.7159 8.469 1311 31.162 28.353 1311 51.78 62.492
1312 48.365 33.99 1312 19.459 13.201 1312 26.513 18.966 1312 9.6974 7.384 1312 32.307 26.913 1312 50.934 62.437
1313 47.908 30.501 1313 19.419 11.374 1313 25.397 18.219 1313 9.932 8.2844 1313 31.225 24.453 1313 52.17 64.921
1314 49.569 32.452 1314 19.75 10.525 1314 26.548 20.47 1314 8.8473 9.007 1314 30.542 30.245 1314 47.979 60.806
1315 50.946 35.622 1315 20.518 12.861 1315 23.66 22.005 1315 9.2216 8.9356 1315 29.481 32.864 1315 51.712 61.63
1316 49.034 34.671 1316 21.244 13.782 1316 24.887 20.024 1316 8.9277 7.3815 1316 29.51 29.157 1316 48.998 64.223
1317 51.609 35.475 1317 22.41 13.982 1317 24.904 19.176 1317 9.1275 6.7349 1317 30.21 28.383 1317 50.335 60.752
1318 51.213 35.545 1318 22.839 14.486 1318 24.868 19.129 1318 8.8004 8.9928 1318 30.223 30.116 1318 49.843 61.839
1319 49.206 31.619 1319 21.142 14.075 1319 24.5 17.117 1319 9.0334 7.1898 1319 30.535 24.962 1319 50.719 63.154
1320 50.549 32.83 1320 20.586 12.267 1320 26.317 19.111 1320 9.744 7.5274 1320 31.383 26.628 1320 46.471 65.012
1321 49.122 26.729 1321 20.589 11.301 1321 24.506 18.363 1321 9.3512 8.0441 1321 29.697 25.774 1321 52.865 68.538
1322 48.044 28.84 1322 20.808 11.611 1322 24.301 19.155 1322 9.5779 7.7474 1322 30.43 27.574 1322 50.717 64.68
1323 46.613 31.809 1323 20.104 12.649 1323 23.779 16.8 1323 8.7777 6.8096 1323 29.55 25.228 1323 52.284 65.725
1324 45.256 31.35 1324 18.19 12.377 1324 22.339 17.496 1324 8.433 7.2042 1324 27.678 26.837 1324 50.96 64.935
1325 48.266 32.211 1325 19.799 13.656 1325 23.992 19.146 1325 9.2509 7.9588 1325 29.446 29.413 1325 49.941 64.846
1326 47.339 34.048 1326 19.529 12.729 1326 23.788 19.769 1326 8.6132 7.3202 1326 28.977 27.122 1326 51.124 63.384
1327 48.733 30.761 1327 20.248 11.318 1327 25.401 19.687 1327 9.9032 8.4045 1327 29.96 30.62 1327 49.726 66.025
1328 50.501 31.918 1328 21.313 10.333 1328 24.946 21.312 1328 9.0217 9.144 1328 30.202 32.896 1328 49.351 61.562
1329 50.332 31.757 1329 21.949 10.649 1329 23.362 18.066 1329 8.7616 7.858 1329 29.371 28.133 1329 50.103 65.532
1330 47.717 31.437 1330 21.414 12.23 1330 22.683 17.871 1330 8.4443 7.3169 1330 28.062 26.781 1330 51.182 64.977
1331 48.577 33.419 1331 22.177 13.741 1331 23.193 17.652 1331 8.9405 6.8819 1331 27.612 26.035 1331 51.161 66.567
1332 48.008 34.16 1332 22.377 13.904 1332 22.117 18.811 1332 8.5684 6.8975 1332 26.815 26.524 1332 50.961 66.36
1333 48.991 31.691 1333 22.137 12.372 1333 24.396 17.992 1333 9.0088 6.5353 1333 30.373 25.048 1333 48.663 65.686
1334 49.656 31.778 1334 21.656 12.247 1334 24.92 19.26 1334 10.077 7.8231 1334 31.928 26.783 1334 50.33 64.52
1335 50.003 32.224 1335 21.125 12.59 1335 24.59 18.255 1335 8.9064 7.3556 1335 29.512 28.595 1335 49.345 66.781
1336 48.572 32.302 1336 20.808 12.887 1336 23.475 19.615 1336 8.5201 6.9621 1336 29.014 29.503 1336 49.208 65.572

Figure 3: Importance of discounts before during and after the 2003 Southern California supermarket strike

Contribution to total revenues (stores on strike) Discount Contribution to total revenues (stores on strike) Before Contribution to total revenues (stores on strike) During Contribution to total revenues (stores on strike) After Contribution to total revenues (stores not on strike) Discount Contribution to total revenues (stores not on strike) Before Contribution to total revenues (stores not on strike) During Contribution to total revenues (stores not on strike) After Contribution to total savings (stores on strike) Discount Contribution to total savings (stores on strike) Before Contribution to total savings (stores on strike) During Contribution to total savings (stores on strike) After Contribution to total savings (stores not on strike) Discount Contribution to total savings (stores not on strike) Before Contribution to total savings (stores not on strike) During Contribution to total savings (stores not on strike) After
5.5 7.7116 6.5203 6.7499 5.5 7.4302 6.7929 6.8387 5.5 0.30598 0.25325 0.26605 5.5 0.34897 0.27153 0.32616
15.5 6.0047 5.0126 6.5387 15.5 6.1263 4.9484 6.8259 15.5 0.93989 0.79458 1.0223 15.5 0.97923 0.79984 1.0747
25.5 6.2861 5.4159 6.9418 25.5 5.1297 4.3079 5.5085 25.5 1.8616 1.5948 2.0362 25.5 1.5397 1.3247 1.6486
35.5 5.0383 4.9571 6.3313 35.5 3.8895 3.1776 4.6694 35.5 2.4162 2.3719 2.988 35.5 1.8909 1.5758 2.276
45.5 4.0175 3.7631 4.554 45.5 2.5223 2.5262 2.9478 45.5 2.9704 2.7805 3.2515 45.5 1.9298 1.9444 2.2189
55.5 1.029 1.5205 1.4958 55.5 0.61181 0.62872 0.76035 55.5 1.0487 1.6375 1.542 55.5 0.67273 0.69283 0.82273
65.5 0.15858 0.4108 0.39562 65.5 0.13422 0.049551 0.29185 65.5 0.25035 0.67729 0.62683 65.5 0.20502 0.079967 0.4801
75.5 0.014567 0.055549 0.06518 75.5 0.019493 0.025326 0.077866 75.5 0.03579 0.13059 0.15754 75.5 0.052874 0.06343 0.18871
85.5 0.0001333 0.00023317 0.0011716 85.5 9.88E-06 0.00065309 3.47E-06 85.5 0.00057795 0.0011917 0.0053632 85.5 4.45E-05 0.0029138 1.54E-05

Figure 4: Impact of 2003 St. Louis supermarket strike on pricing decisions

Quantity index: Week Quantity index: On strike Quantity index: Not on strike Price index: Week Price index: On strike Price index: Not on strike Relative price controlling for basket composition (cost in stores on strike relative to cost in stores not on strike): Week Relative price controlling for basket composition (cost in stores on strike relative to cost in stores not on strike): Fixed basket Relative price controlling for basket composition (cost in stores on strike relative to cost in stores not on strike): On-strike basket Relative price controlling for basket composition (cost in stores on strike relative to cost in stores not on strike): Not-on-strike basket
1232 1.0085 1.02 1232 0.99358 0.99023 1232 1.0085 0.99566 1.0271
1233 1.1305 1.1966 1233 0.99296 0.99416 1233 1.0066 1.0008 1.0197
1234 0.94687 0.87121 1234 0.99072 1.0019 1234 0.98893 0.96787 1.0035
1235 0.98414 0.95605 1235 0.99985 0.9949 1235 1.0176 1.0134 1.0246
1236 1.035 1.0008 1236 0.9977 0.99135 1236 1.0248 1.0175 1.0356
1237 0.9957 0.96599 1237 0.99504 0.99122 1237 1.0151 1.0052 1.0275
1238 1.0124 1.0113 1238 1.0005 0.99793 1238 1.0097 1.0077 1.031
1239 0.96599 0.94374 1239 1.0005 0.99387 1239 1.0152 1.0087 1.0389
1240 0.98938 0.94901 1240 1.0014 0.99989 1240 1.0032 0.98548 1.0213
1241 0.98858 1.047 1241 0.9977 0.9961 1241 1.0089 1.0019 1.0368
1242 1.0081 1.0192 1242 0.99586 0.99151 1242 1.0175 1.0057 1.0345
1243 0.95201 0.92475 1243 1.0009 0.99615 1243 1.0046 0.98954 1.0199
1244 1.0311 1.0559 1244 1.0005 0.99865 1244 1.0147 1.0073 1.0272
1245 0.98797 1.0267 1245 1.004 1.0014 1245 1.0127 1.0035 1.0325
1246 1.0145 1.0511 1246 1.001 0.99871 1246 1.0107 1.0021 1.0356
1247 0.99856 1.0084 1247 0.99805 0.9961 1247 1.0015 0.99573 1.013
1248 0.99494 1.0215 1248 1.001 0.9966 1248 1.0154 1.0085 1.0369
1249 0.98236 0.98409 1249 1.001 1.0016 1249 1.0188 1.0233 1.0513
1250 1.0135 1.0214 1250 1.0008 1.0037 1250 1.0082 0.99763 1.0225
1251 0.97839 0.99468 1251 1.0005 1.0027 1251 1.0084 0.99789 1.0228
1252 1.0201 1.0381 1252 0.99573 1.0023 1252 1.0045 0.99702 1.0177
1253 0.94094 0.9843 1253 1.0025 1.0101 1253 1.0155 1.0043 1.027
1254 1.0004 0.97753 1254 1.0075 1.0122 1254 1.0125 1.0015 1.0225
1255 1.0027 0.98919 1255 1.0058 1.0107 1255 1.012 1.0033 1.0344
1256 1.0108 0.96716 1256 0.99932 1.0061 1256 1.0011 0.99159 1.0188
1257 1.0221 1.015 1257 1.0158 1.0206 1257 1.0022 0.98305 1.0179
1258 0.51191 0.99568 1258 1.0031 1.0079 1258 1.0122 1.0008 1.0273
1259 0.45443 1.0485 1259 0.99485 1.0094 1259 1.0125 1.0034 1.0319
1260 0.56542 1.1028 1260 1.0028 1.0111 1260 1.0123 0.99963 1.0295
1261 0.73133 1.0643 1261 1.0026 1.0142 1261 1.0131 1.0026 1.0298
1262 1.0257 1.0246 1262 1.0062 1.0116 1262 1.0068 1.0017 1.0195
1263 0.94598 0.97314 1263 1.0077 1.0191 1263 1.0065 0.99531 1.0225
1264 0.97887 0.94838 1264 1.009 1.0239 1264 1.0079 0.9978 1.0192
1265 1.0048 1.0242 1265 1.0079 1.0271 1265 1.0052 0.99432 1.0043
1266 0.97421 1.0026 1266 1.0015 1.019 1266 0.9948 0.97711 0.99578
1267 1.0157 1.0353 1267 1.0011 1.0179 1267 1.0046 0.98434 1.0157
1268 0.94683 0.92514 1268 0.99767 1.0178 1268 0.99863 0.99011 1.0132
1269 1.0124 1.0364 1269 0.99613 1.0113 1269 1.0002 0.9926 1.006
1270 1.0593 1.0533 1270 0.99149 1.0082 1270 1.006 0.9983 1.0162
1271 0.99124 0.95016 1271 1.0052 1.0204 1271 1.0061 0.9554 1.0215
1272 0.95256 0.95001 1272 1.0022 1.0244 1272 0.99728 0.98177 1.0027
1273 1.0094 1.0215 1273 1.0019 1.0285 1273 0.99365 0.98474 0.99548
1274 1.0357 1.0328 1274 1.004 1.0218 1274 1.0069 0.99373 1.0201
1275 0.92541 0.96779 1275 1.012 1.028 1275 1.0038 0.9975 1.0145
1276 0.94902 0.95337 1276 1.0061 1.0294 1276 1.0008 0.9879 1.0106
1277 0.95562 0.94907 1277 1.0022 1.0292 1277 1.0034 0.99291 1.008
1278 0.94586 0.91235 1278 1.007 1.0274 1278 1.0097 1.0005 1.0356
1279 0.95426 0.98958 1279 1.0113 1.0354 1279 1.0028 0.99182 1.0121
1280 0.96436 0.97779 1280 1.0046 1.0243 1280 1.0026 0.99402 1.0188
1281 0.97859 0.9979 1281 1.006 1.0239 1281 1.0059 0.99832 1.0225
1282 0.93445 0.91943 1282 1.0098 1.0304 1282 1.0076 0.99831 1.0147
1283 0.99436 0.99387 1283 1.0055 1.0252 1283 1.006 0.96105 1.0184
1284 1.033 1.1299 1284 1.0034 1.0246 1284 1.0002 0.99538 1.0093
1285 0.88533 0.84743 1285 1.0049 1.0296 1285 1.0094 1.0034 1.0192
1286 0.97315 1.0136 1286 1.0127 1.0279 1286 1.0042 0.99814 1.011
1287 0.96196 0.97216 1287 1.0066 1.0293 1287 1.0084 0.99245 1.0139
1288 0.98186 1.0072 1288 1.0049 1.0351 1288 0.99255 0.98008 0.99986
1289 0.96792 0.99354 1289 1.0127 1.0435 1289 0.99676 0.98701 1.0037
1290 0.94904 0.93851 1290 1.0144 1.0432 1290 1.0117 0.99699 1.0213
1291 0.98646 0.9925 1291 1.0104 1.0413 1291 1.0049 1.0016 1.013
1292 1.0156 1.1307 1292 1.0053 1.0316 1292 1.0097 1.0055 1.0143
1293 0.92855 0.94062 1293 1.0131 1.0369 1293 1.0144 1.0057 1.0238
1294 0.96875 0.98287 1294 1.0154 1.0411 1294 1.0102 1.0024 1.0259
1295 0.94559 0.95982 1295 1.021 1.0496 1295 1.0075 1.0091 1.0399
1296 1.0012 1.0055 1296 1.0154 1.0403 1296 1.0116 1.0052 1.0209
1297 0.95195 0.91053 1297 1.0099 1.0353 1297 1.0109 0.99854 1.0123
1298 0.96043 0.95178 1298 1.0075 1.0327 1298 1.0124 1.0067 1.0318
1299 0.93166 0.92104 1299 1.009 1.0385 1299 1.0098 1.0016 1.0204
1300 0.94154 0.90953 1300 1.0118 1.0433 1300 1.0087 0.99855 1.0277
1301 0.96137 0.99257 1301 1.0132 1.0376 1301 1.0046 0.99298 1.014
1302 0.94234 0.91925 1302 1.0137 1.0418 1302 1.01 1.0023 1.0224
1303 0.92435 0.88712 1303 1.0138 1.0406 1303 1.0286 1.0215 1.0427
1304 0.94138 0.91578 1304 1.0108 1.0335 1304 1.0225 1.0145 1.0506
1305 0.94044 0.87862 1305 1.011 1.036 1305 1.015 1.0041 1.0277
1306 1.0135 0.94224 1306 1.0073 1.0342 1306 1.0079 0.9885 1.0265
1307 0.95098 0.92987 1307 0.99833 1.0262 1307 1.0068 0.99476 1.0136
1308 0.96622 0.93255 1308 1.0125 1.0401 1308 0.99873 0.98264 1.0101
1309 0.95022 0.90738 1309 1.0038 1.03 1309 1.0152 0.99254 1.0279
1310 0.94962 0.90611 1310 1.0024 1.0318 1310 1.0171 1.001 1.0962
1311 0.91635 0.88947 1311 0.99781 1.0323 1311 1.0074 0.99351 1.0231
1312 0.99562 0.92833 1312 1.004 1.038 1312 1.0122 0.99891 1.0431
1313 0.93292 0.8729 1313 0.99627 1.0295 1313 1.0111 1.0013 1.0361
1314 0.94405 0.89545 1314 1.0016 1.0316 1314 1.0061 0.98988 1.0268
1315 0.97586 0.90591 1315 0.9989 1.031 1315 1.019 1.0105 1.0463
1316 0.95157 0.88666 1316 0.9975 1.0322 1316 1.0066 1.0059 1.0337
1317 0.97028 0.9113 1317 0.99838 1.0302 1317 1.0094 0.99787 1.0302
1318 0.96434 0.85389 1318 1.0019 1.0332 1318 1.0145 0.99983 1.0422
1319 0.98356 0.89615 1319 1.0013 1.0337 1319 1.0258 1.0151 1.0668
1320 0.93183 0.88701 1320 1.0012 1.0298 1320 1.0265 1.023 1.0574
1321 1.024 0.97129 1321 0.99949 1.0295 1321 1.0124 1.0008 1.0384
1322 0.93304 0.82628 1322 0.99953 1.03 1322 1.0158 1.01 1.0397
1323 0.97548 0.88327 1323 0.9968 1.0353 1323 1.0135 1.0041 1.0316
1324 0.95596 0.85518 1324 1.0056 1.0441 1324 1.01 1.0041 1.0208
1325 0.94573 0.84852 1325 1.0012 1.0358 1325 1.0225 1.0128 1.0333
1326 0.90914 0.83061 1326 1.0093 1.0414 1326 1.0299 1.0267 1.0495
1327 0.99175 0.89659 1327 0.99985 1.034 1327 1.0401 1.045 1.0804
1328 0.9994 0.88127 1328 1.005 1.0367 1328 1.0168 1.0165 1.0323
1329 0.98219 0.89046 1329 1.0034 1.0296 1329 1.0272 1.0225 1.0436
1330 0.97298 0.89241 1330 0.99987 1.034 1330 1.0273 1.0099 1.0537
1331 0.96123 0.87334 1331 0.99878 1.033 1331 1.0202 1.0173 1.0385
1332 0.96009 0.86506 1332 1.0031 1.0386 1332 1.0198 1.0149 1.035
1333 0.96961 0.86948 1333 1.0074 1.0443 1333 1.0168 1.0065 1.0553
1334 1.0118 0.95657 1334 1.0028 1.0421 1334 1.0138 1.0136 1.021
1335 0.94569 0.8554 1335 1.0072 1.0493 1335 1.0392 1.0504 1.0783
1336 0.92209 0.82348 1336 1.0105 1.0535 1336 1.0195 1.0144 1.0427

Figure 5: Impact of 2003 St. Louis supermarket strike on pricing decisions

Frequency of price changes: Week Frequency of price changes: On strike Frequency of price changes: Not on strike Frequency of regular price changes: Week Frequency of regular price changes: On strike Frequency of regular price changes: Not on strike Share of items on sale: Week Share of items on sale: On strike Share of items on sale: Not on strike Mean discount: Week Mean discount: On strike Mean discount: Not on strike Share of revenues from items on sale: Week Share of revenues from items on sale: On strike Share of revenues from items on sale: Not on strike Share of prices equal to chain price: Week Share of prices equal to chain price: On strike Share of prices equal to chain price: Not on strike
1232 24.585 20.939 1232 4.9334 3.5514 1232 20.007 17.526 1232 9.668 9.7403 1232 28.915 25.893 1232 94.572 90.412
1233 23.687 19.482 1233 5.6843 4.7066 1233 22.036 18.453 1233 10.765 10.815 1233 30.59 26.804 1233 95.664 90.131
1234 25.667 25.999 1234 5.1513 5.8739 1234 21.259 17.218 1234 10.726 8.8471 1234 31.22 25.79 1234 95.596 81.688
1235 21.197 21.575 1235 4.2313 5.2293 1235 20.553 19.823 1235 9.0024 9.1096 1235 29.228 27.898 1235 95.14 83.912
1236 24.221 23.064 1236 4.2736 5.0211 1236 20.745 19.562 1236 9.438 9.151 1236 28.693 26.597 1236 94.494 84.875
1237 23.972 20.021 1237 4.2771 4.1434 1237 21.303 20.279 1237 11.032 9.52 1237 31.996 28.674 1237 95.539 86.927
1238 22.721 20.996 1238 5.0005 4.3841 1238 19.497 17.414 1238 10.062 9.452 1238 28.706 25.122 1238 94.902 89.921
1239 24.968 24.103 1239 5.7669 5.5967 1239 21.389 19.851 1239 9.4271 10.35 1239 28.67 27.659 1239 93.507 89.292
1240 25.959 24.638 1240 3.9933 3.995 1240 19.046 16.942 1240 10.442 10.294 1240 33.894 32.922 1240 94.378 85.152
1241 25.926 23.316 1241 5.717 4.8667 1241 20.863 17.89 1241 9.8822 9.4686 1241 28.627 25.878 1241 91.922 86.965
1242 26.628 22.453 1242 6.4129 5.2766 1242 21.01 19.247 1242 10.038 10.211 1242 28.307 27.106 1242 94.459 88.001
1243 23.228 21.701 1243 5.3946 5.7904 1243 20.159 18.062 1243 10.109 9.2909 1243 27.444 23.407 1243 94.652 88.581
1244 24.123 20.642 1244 5.9184 5.2933 1244 20.143 17.414 1244 9.3973 8.8113 1244 28.948 24.032 1244 96.091 90.352
1245 23.076 22.284 1245 4.5996 3.7031 1245 18.779 17.394 1245 9.6064 9.7523 1245 27.925 30.993 1245 96.532 86.903
1246 24.863 24.482 1246 6.6117 6.4843 1246 19.485 16.519 1246 9.9649 10.218 1246 30.675 26.909 1246 93.817 87.719
1247 26.421 23.324 1247 8.7165 8.4612 1247 18.483 16.19 1247 11.247 10.429 1247 29.162 26.028 1247 94.876 87.238
1248 22.415 20.919 1248 5.8993 5.62 1248 18.696 17.728 1248 9.5393 10.285 1248 27.249 25.94 1248 94.621 88.288
1249 24.49 21.776 1249 7.4061 6.6098 1249 18.043 15.61 1249 8.1977 9.0309 1249 24.979 23.492 1249 92.652 88.601
1250 25.813 20.41 1250 8.0251 5.6704 1250 18.169 16.009 1250 9.078 8.5573 1250 27.351 23.946 1250 93.865 88.253
1251 23.885 22.627 1251 7.0579 6.0833 1251 17.965 16.226 1251 10.099 10.188 1251 28.352 26.381 1251 94.012 90.026
1252 26.648 23.532 1252 8.5594 6.5857 1252 18.444 17.052 1252 9.5297 9.6467 1252 26.28 25.18 1252 94.274 87.305
1253 26.134 26.002 1253 9.4063 9.4457 1253 19.707 17.493 1253 7.9421 9.1876 1253 24.206 25.039 1253 92.524 86.404
1254 25.279 23.507 1254 6.913 4.7043 1254 17.759 18.375 1254 8.7117 9.4331 1254 25.034 29.948 1254 94.803 83.474
1255 23.427 24.097 1255 7.4558 5.6162 1255 19.477 18.742 1255 8.5957 9.7744 1255 25.867 26.235 1255 93.853 87.41
1256 25.452 23.523 1256 7.982 6.7301 1256 20.88 19.107 1256 11.01 10.18 1256 29.909 27.218 1256 94.45 88.444
1257 27.877 22.528 1257 8.8849 5.7975 1257 18.385 16.592 1257 9.0693 8.8907 1257 28.749 24.974 1257 91.235 89.549
1258 30.446 23.246 1258 9.439 4.5056 1258 17.104 18.305 1258 8.8603 10.755 1258 23.12 28.147 1258 95.469 88.53
1259 15.562 19.388 1259 2.8693 3.2055 1259 19.149 18.162 1259 7.9043 9.8831 1259 22.148 28.765 1259 92.707 86.647
1260 22.252 21.255 1260 4.8176 4.0839 1260 17.368 18.68 1260 10.367 11.762 1260 25.954 29.526 1260 90.004 87.035
1261 21.83 20.517 1261 5.3643 3.9892 1261 18.061 18.484 1261 9.4152 10.82 1261 22.581 26.93 1261 92.515 87.144
1262 18.984 21.195 1262 4.8674 4.7119 1262 16.617 18.884 1262 9.7659 10.771 1262 25.397 27.694 1262 96.464 90.29
1263 23.247 21.941 1263 6.3139 4.0559 1263 17.822 17.749 1263 9.2258 8.8903 1263 26.352 24.091 1263 92.616 88.865
1264 25.197 20.574 1264 7.5727 4.0754 1264 16.741 15.89 1264 9.3555 9.9264 1264 26.116 25.72 1264 95.386 90.846
1265 26.1 23.39 1265 8.5146 6.6757 1265 19.414 16.691 1265 8.8813 8.9167 1265 28.044 26.324 1265 91.705 87.39
1266 23.956 20.832 1266 6.5093 4.7802 1266 19.626 16.984 1266 10.133 8.8898 1266 30.822 24.584 1266 94.055 88.763
1267 23.999 19.867 1267 6.1036 4.7224 1267 19.626 16.976 1267 10.077 9.4404 1267 28.416 24.561 1267 93.298 90.056
1268 27.795 23.923 1268 8.7639 6.6707 1268 19.587 17.073 1268 9.3888 10.148 1268 24.858 25.916 1268 94.084 89.713
1269 26.384 21.744 1269 8.0303 6.4076 1269 22.39 20.957 1269 9.8819 10.919 1269 28.669 29.992 1269 88.007 83.547
1270 23.245 20.347 1270 6.4908 4.4868 1270 21.908 19.692 1270 9.9533 10.547 1270 28.256 26.809 1270 93.235 90.775
1271 26.206 23.258 1271 6.1836 4.3137 1271 19.566 17.922 1271 10.442 10.991 1271 29.968 29.132 1271 93.739 88.811
1272 26.935 23.224 1272 6.1933 4.3146 1272 19.451 17.451 1272 10.571 10.816 1272 29.015 28.428 1272 93.575 87.231
1273 24.774 21.128 1273 6.3492 4.0099 1273 19.84 16.746 1273 10.832 10.575 1273 30.076 27.523 1273 93.52 87.21
1274 26.645 24.752 1274 6.9598 4.8572 1274 20.393 18.251 1274 10.947 10.377 1274 30.599 26.467 1274 92.836 88.242
1275 25.852 21.638 1275 5.6782 3.7542 1275 19.817 18.339 1275 9.8885 9.0998 1275 28.458 24.941 1275 92.424 90.32
1276 23.076 19.47 1276 5.2205 4.0975 1276 18.964 16.119 1276 9.5035 9.5381 1276 27.506 24.237 1276 95.082 88.632
1277 23.646 21.083 1277 5.898 4.555 1277 19.451 17.141 1277 11.051 9.8582 1277 29.533 26.727 1277 93.601 88.586
1278 25.384 24.23 1278 6.6268 6.6245 1278 18.91 17.997 1278 10.031 10.711 1278 27.931 29.592 1278 93.43 87.29
1279 23.413 17.21 1279 6.2976 3.2353 1279 18.756 16.734 1279 8.6648 8.9544 1279 26.266 25.833 1279 93.556 86.838
1280 22.875 21.163 1280 4.9517 4.3663 1280 20.195 18.411 1280 11.273 11.476 1280 30.962 29.215 1280 93.951 88.489
1281 24.273 20.175 1281 5.6337 4.5372 1281 19.812 18.766 1281 10.316 11.146 1281 27.884 29.188 1281 93.215 88.208
1282 25.28 21.85 1282 6.7075 4.7105 1282 19.215 16.82 1282 9.3393 8.8755 1282 27.001 23.187 1282 94.091 89.499
1283 24.373 20.722 1283 5.6958 4.4889 1283 19.116 17.002 1283 12.52 10.95 1283 30.715 27.542 1283 93.447 87.807
1284 24.021 21.937 1284 6.684 5.5557 1284 18.741 17.224 1284 11.663 12.089 1284 30.343 29.078 1284 94.213 89.283
1285 24.409 22.57 1285 7.4081 5.6017 1285 19.177 16.214 1285 10.451 10.544 1285 29.58 26.386 1285 94.396 88.932
1286 23.967 19.996 1286 6.3085 4.1384 1286 17.554 16.691 1286 10.303 10.229 1286 27.342 27.149 1286 94.379 90.46
1287 27.396 23.428 1287 9.1998 7.2367 1287 18.072 16.021 1287 11.293 11.808 1287 28.831 27.609 1287 94.252 91.003
1288 25.723 24.231 1288 6.2315 7.0097 1288 19.937 15.975 1288 11.951 11.204 1288 32.985 28.943 1288 94.871 91.578
1289 25.273 20.822 1289 6.1491 4.0137 1289 18.889 15.633 1289 10.184 10.368 1289 28.308 26.039 1289 93.366 91.563
1290 27.968 24.812 1290 8.246 5.9008 1290 19.448 16.41 1290 11.035 11.002 1290 28.883 26.335 1290 93.276 89.821
1291 24.588 20.889 1291 6.16 4.4256 1291 20.115 16.834 1291 10.81 10.81 1291 30.167 28.062 1291 94.639 89.684
1292 23.38 19.563 1292 5.2322 3.8549 1292 20.529 17.441 1292 11.224 10.587 1292 30.972 24.655 1292 94.455 93.042
1293 25.384 21.961 1293 5.7704 5.0726 1293 19.273 17.958 1293 8.8218 9.6332 1293 28.693 26.487 1293 94.62 90.339
1294 24.956 22.133 1294 5.6516 4.5283 1294 18.276 16.14 1294 10.31 10.374 1294 30.109 27.799 1294 94.297 89.669
1295 24.21 20.238 1295 7.5656 5.2151 1295 16.869 14.461 1295 9.859 10.738 1295 25.928 23.675 1295 94.394 90.625
1296 22.884 20.39 1296 4.9754 3.0668 1296 17.632 16.8 1296 10.709 11.118 1296 29.648 28.392 1296 96.088 91.503
1297 23.609 23.263 1297 5.4633 4.5769 1297 20.288 20.539 1297 10.545 10.733 1297 31.742 30.306 1297 89.85 83.322
1298 24.884 23.225 1298 5.382 3.6835 1298 19.499 19.225 1298 10.241 11.459 1298 27.345 29.192 1298 93.548 87.249
1299 24.875 22.83 1299 7.1639 4.9388 1299 21.019 19.923 1299 8.7852 8.5903 1299 27.2 25.068 1299 93.935 88.023
1300 24.407 22.362 1300 5.4966 4.1759 1300 19.32 18.065 1300 9.5883 9.6302 1300 29.187 28.675 1300 94.078 88.306
1301 24.25 23.723 1301 7.5134 7.0038 1301 18.446 17.978 1301 10.583 10.595 1301 28.655 28.035 1301 94.108 86.551
1302 23.363 22.735 1302 5.7482 4.9716 1302 18.689 17.628 1302 10.462 10.308 1302 28.417 26.744 1302 94.697 88.665
1303 24.493 22.008 1303 7.539 5.7688 1303 18.597 18.457 1303 10.012 11.412 1303 27.69 30.997 1303 94.626 86.91
1304 28.063 23.543 1304 7.2909 5.5379 1304 21.071 20.526 1304 9.9667 11.869 1304 31.076 33.394 1304 94.216 87.145
1305 23.75 21.066 1305 5.9489 6.0661 1305 19.225 18.557 1305 11.028 11.015 1305 29.508 29.095 1305 94.42 86.725
1306 24.822 22.812 1306 5.6702 5.1886 1306 19.763 18.462 1306 11.348 11.213 1306 29.738 26.429 1306 94.179 86.952
1307 25.457 25.037 1307 7.066 6.0408 1307 20.291 20.505 1307 11.76 12.267 1307 30.657 33.141 1307 94.06 86.286
1308 27.379 25.878 1308 7.1114 5.917 1308 17.809 17.6 1308 10.546 9.6868 1308 28.659 27.391 1308 94.71 87.124
1309 24.062 23.654 1309 6.8603 5.553 1309 19.469 19.747 1309 10.572 11.781 1309 28.378 31.474 1309 95.318 87.19
1310 25.456 26.111 1310 7.0583 5.7693 1310 19.313 18.368 1310 10.101 12.409 1310 27.516 29.689 1310 95.76 88.022
1311 23.587 20.992 1311 6.9693 4.3825 1311 20.003 18.491 1311 9.9794 10.292 1311 27.669 27.019 1311 94.443 87.388
1312 25.324 23.205 1312 6.2982 4.7633 1312 19.566 18.321 1312 10.409 11.072 1312 27.895 29.212 1312 94.6 87.541
1313 24.329 23.169 1313 6.9425 5.7842 1313 21.325 20.169 1313 9.5841 10.11 1313 26.414 26.788 1313 94.233 88.07
1314 25.594 22.93 1314 6.0545 4.8191 1314 19.833 18.574 1314 10.002 10.553 1314 27.366 25.36 1314 94.31 87.137
1315 23.358 21.01 1315 4.9516 3.8264 1315 20.664 19.938 1315 10.61 12.686 1315 31.108 31.247 1315 93.526 86.867
1316 28.134 25.262 1316 5.5341 4.9338 1316 21.197 19.619 1316 11.649 12.912 1316 31.975 33.173 1316 94.986 87.06
1317 24.668 24.14 1317 6.3295 5.9251 1317 21.57 19.723 1317 11.397 12.27 1317 32.617 32.188 1317 92.466 85.798
1318 24.438 21.197 1318 5.41 4.303 1318 20.392 19.386 1318 10.746 11.442 1318 29.792 28.104 1318 93.987 87.629
1319 24.536 22.308 1319 6.5269 5.1642 1319 19.012 18.45 1319 9.9664 11.812 1319 28.596 29.615 1319 94.714 88.693
1320 24.96 23.164 1320 5.4054 4.3113 1320 19.375 19.56 1320 10.32 12.403 1320 30.912 33.435 1320 93.811 85.657
1321 22.167 21.887 1321 5.9464 4.2678 1321 20.045 19.356 1321 11.684 12.9 1321 32.335 33.137 1321 93.475 86.211
1322 29.521 27.647 1322 7.5707 5.8176 1322 19.451 19.706 1322 10.966 11.725 1322 30.527 31.61 1322 96.907 88.637
1323 22.274 20.752 1323 3.9351 3.8111 1323 21.053 19.455 1323 10.647 10.367 1323 30.277 28.054 1323 97.96 90.344
1324 21.796 22.184 1324 3.1409 2.6103 1324 19.521 17.923 1324 9.6917 9.6538 1324 27.556 27.402 1324 94.665 87.621
1325 24.591 25.499 1325 5.6088 5.5909 1325 19.927 19.227 1325 10.468 10.934 1325 28.931 29.404 1325 94.144 85.815
1326 24.096 23.809 1326 5.5288 5.7005 1326 19.376 18.367 1326 9.5572 10.554 1326 27.129 28.263 1326 93.496 83.341
1327 26.828 25.237 1327 6.6673 6.1397 1327 21.488 19.556 1327 10.697 13.403 1327 30.193 31.77 1327 94.185 82.412
1328 23.933 23.907 1328 4.2366 5 1328 20.348 20.738 1328 10.299 10.587 1328 28.664 29.09 1328 92.607 86.011
1329 25.372 25.358 1329 5.5408 4.8614 1329 19.892 19.929 1329 9.9161 11.009 1329 30.665 29.93 1329 90.461 85.458
1330 28.929 24.751 1330 10.503 6.8392 1330 20.655 20.483 1330 9.4675 10.494 1330 30.183 28.429 1330 94.735 84.829
1331 22.824 22.889 1331 5.2293 4.9998 1331 21.43 20.216 1331 9.9484 10.837 1331 32.602 31.058 1331 94.709 83.64
1332 25.085 22.185 1332 6.1477 4.6371 1332 18.325 18.226 1332 9.9572 11.307 1332 27.211 29.155 1332 94.411 85.034
1333 28.751 25.358 1333 9.9691 8.081 1333 17.057 16.796 1333 9.369 10.429 1333 25.252 25.787 1333 92.407 83.157
1334 26.792 26.14 1334 10.56 9.4278 1334 17.87 16.429 1334 10.258 11.143 1334 26.403 24.943 1334 93.693 84.061
1335 25.096 23.69 1335 8.2767 6.5274 1335 18.979 18.199 1335 9.5346 12.643 1335 25.373 29.618 1335 93.586 84.39
1336 23.775 23.272 1336 7.0414 6.3515 1336 18.952 18.703 1336 8.3174 9.4097 1336 24.062 27.868 1336 94.971 83.909

Figure 6: Impact of 2005 Hurricane Katrina on pricing decisions in New Orleans Louisiana

Quantity index: Week Quantity index: Food Quantity index: Care Price index: Week Price index: Food Price index: Care Frequency of price changes: Week Frequency of price changes: Food Frequency of price changes: Care Mean discount: Week Mean discount: Food Mean discount: Care Share of items on sale: Week Share of items on sale: Food Share of items on sale: Care Share of revenues from items on sale: Week Share of revenues from items on sale: Food Share of revenues from items on sale: Care
1331 0.98658 1.0122 1331 0.99918 1.0061 1331 29.678 30.53 1331 4.7838 8.5874 1331 14.042 15.195 1331 19.515 23.912
1332 0.99502 0.92949 1332 1.0007 1.02 1332 29.365 26.562 1332 4.5885 4.3293 1332 13.578 11.5 1332 16.344 15.099
1333 1.0052 0.99156 1333 1.0003 1.0043 1333 28.99 23.893 1333 3.7525 10.18 1333 11.526 13.089 1333 13.185 23.001
1334 1.0694 0.95554 1334 1.0037 1.0161 1334 27.062 31.11 1334 6.193 4.8822 1334 12.187 12.969 1334 18.363 17.824
1335 1.0181 1.1036 1335 0.99245 1.0031 1335 28.704 28.245 1335 4.5888 9.5925 1335 14.04 14.548 1335 15.938 23.94
1336 1.0096 1.0358 1336 1.0067 1.0075 1336 32.617 28.308 1336 3.925 12.826 1336 12.913 13.689 1336 15.863 26.472
1337 0.98415 1.0129 1337 1.0022 1.0014 1337 30.209 30.934 1337 4.4095 9.5617 1337 13.594 14.131 1337 18.108 26.823
1338 1.0363 1.0275 1338 0.99385 0.99527 1338 30.162 27.181 1338 4.8341 6.6073 1338 15.586 17.339 1338 21.302 26.042
1339 1.0169 1.0336 1339 0.99149 0.99503 1339 29.12 29.341 1339 5.411 8.8254 1339 16.975 15.534 1339 22.045 25.572
1340 1.038 1.0777 1340 0.99888 0.9968 1340 32.714 26.956 1340 5.1501 8.9016 1340 16.075 14.308 1340 20.93 24.667
1341 1.0898 1.027 1341 0.98618 0.9955 1341 34.292 33.074 1341 5.5293 9.4298 1341 16.632 15.747 1341 18.182 26.46
1342 1.0682 1.0209 1342 0.98744 0.98103 1342 33.698 30.13 1342 5.427 10.956 1342 14.811 18.532 1342 14.605 31.641
1343 0.94741 0.97867 1343 1.0067 1.0007 1343 31.911 33.386 1343 4.0432 6.1532 1343 12.952 14.585 1343 15.516 24.057
1344 1.0218 1.0131 1344 0.99961 1.0038 1344 30.534 26.945 1344 5.1667 5.4333 1344 15.001 14.129 1344 18.107 21.545
1345 0.96768 1.0319 1345 1.0034 1.0035 1345 33.004 28.38 1345 3.9089 6.4091 1345 14.482 11.134 1345 16.608 18.765
1346 0.93077 0.92463 1346 1.0069 0.99811 1346 30.44 29.614 1346 4.7781 6.2935 1346 14.596 15.234 1346 18.11 22.332
1347 0.97025 0.95931 1347 1.0021 1.0014 1347 30.808 29.172 1347 4.6787 5.5239 1347 13.714 13.373 1347 16.742 20.075
1348 1.0152 0.94267 1348 0.99943 0.99878 1348 31.775 26.01 1348 4.909 5.214 1348 15.11 14.998 1348 16.874 22.72
1349 1.0321 1.0304 1349 1.0026 1.0082 1349 31.464 30.556 1349 4.0559 6.6666 1349 12.579 11.342 1349 14.711 21.485
1350 0.96487 0.92532 1350 1.0003 0.99314 1350 31.453 28.545 1350 5.7048 5.1741 1350 14.714 13.006 1350 19.182 17.47
1351 0.98637 0.96237 1351 1.0029 0.99557 1351 30.147 23.255 1351 4.8226 5.4308 1351 13.952 12.229 1351 17.038 17.576
1352 0.99029 0.98568 1352 0.99886 0.99184 1352 31.537 22.566 1352 5.6048 7.6295 1352 14.821 12.115 1352 18.084 20.445
1353 0.94346 0.96209 1353 0.99788 0.99797 1353 32.914 31.43 1353 4.6799 5.0308 1353 14.205 12.172 1353 17.517 16.566
1354 0.9511 0.96738 1354 0.99891 0.99734 1354 31.704 35.17 1354 5.8535 5.1118 1354 15.538 10.169 1354 21.177 14.582
1355 0.97813 1.0312 1355 1.0102 0.98445 1355 30.95 27.81 1355 5.0567 6.6387 1355 11.414 12.742 1355 17.847 21.498
1356 1.0034 1.087 1356 1.0076 1.004 1356 27.016 27.408 1356 6.4778 5.1952 1356 12.239 13.621 1356 15.312 18.285
1357 1.1792 1.6152 1357 1.0115 0.99221 1357 29.766 23.866 1357 3.6571 5.5129 1357 15.95 15.535 1357 20.351 18.998
1358 1.0756 1.0708 1358 1.0081 1.0106 1358 31.455 28.118 1358 5.1918 2.8733 1358 17.15 12.008 1358 22.107 16.62
1359 1.1631 1.1204 1359 1.0143 1.0092 1359 30.107 21.238 1359 5.4071 2.0148 1359 13.931 9.9057 1359 15.37 11.848
1360 1.2598 1.1773 1360 1.0243 1.0084 1360 27.692 24.162 1360 2.8631 0.5982 1360 11.679 9.363 1360 12.009 8.047
1361 1.2775 1.1655 1361 1.0219 1.0169 1361 26.885 23.644 1361 2.5291 1.977 1361 12.749 10.724 1361 14.628 14.801
1362 1.2993 1.1332 1362 1.0168 1.0151 1362 28.374 25.534 1362 4.4546 2.9213 1362 11.628 7.5019 1362 14.798 11.909
1363 1.2685 1.1302 1363 1.0163 0.99606 1363 29.409 30.42 1363 2.9677 3.4838 1363 11.945 10.952 1363 11.925 13.986
1364 1.2615 1.1482 1364 1.013 0.9938 1364 27.787 25.727 1364 4.0458 3.9347 1364 13.746 14.012 1364 14.827 20.098
1365 1.2358 1.1383 1365 1.0138 1.0064 1365 29.88 26.534 1365 3.5594 3.2519 1365 13.066 9.7221 1365 14.278 15.228
1366 1.222 1.1813 1366 1.0102 0.99539 1366 32.629 27.097 1366 5.6234 5.179 1366 14.625 13.764 1366 17.719 20.853
1367 1.2605 1.2525 1367 1.0175 0.9798 1367 31.4 26.053 1367 3.8428 8.8019 1367 12.518 15.702 1367 14.581 27.17
1368 1.2076 1.206 1368 1.0227 0.98667 1368 29.609 29.451 1368 3.7213 7.2716 1368 12.657 14.452 1368 14.691 23.341
1369 1.1726 1.1365 1369 1.0187 0.99277 1369 29.954 25.112 1369 4.7714 7.1774 1369 14.397 12.969 1369 18.121 22.317
1370 1.1907 1.0981 1370 1.0263 1.0065 1370 29.164 30.614 1370 4.8345 5.3256 1370 11.208 13.211 1370 14.168 21.021
1371 1.1842 1.198 1371 1.0247 0.99418 1371 30.816 28.383 1371 4.605 8.3322 1371 14.141 13.006 1371 17.069 22.045
1372 1.097 1.1609 1372 1.0182 0.98932 1372 31.979 32.047 1372 6.4979 7.6554 1372 14.093 16.229 1372 18.972 25.624
1373 1.0852 1.1125 1373 1.0251 0.98977 1373 28.293 34.3 1373 5.9703 7.3659 1373 13.592 17.248 1373 18.529 27.136
1374 1.1849 1.0954 1374 1.0232 1.003 1374 30.404 34.001 1374 5.5012 5.3433 1374 14.542 14.699 1374 17.071 20.82
1375 1.202 1.1646 1375 1.0198 1.0018 1375 31.089 30.451 1375 3.9019 5.6189 1375 16.034 12.67 1375 16.934 19.197
1376 1.2189 1.2209 1376 1.0213 0.99608 1376 30.689 29.922 1376 4.6938 4.0294 1376 15.783 11.509 1376 18.156 16.839
1377 1.2295 1.2021 1377 1.0159 0.99076 1377 33.774 26.444 1377 4.6156 4.077 1377 16.283 12.709 1377 18.614 18.399
1378 1.1984 1.1734 1378 1.0248 0.9985 1378 32.757 36.388 1378 3.6991 7.4547 1378 13.793 13.246 1378 17.054 21.613
1379 1.2008 1.1859 1379 1.0216 1.0004 1379 30.978 33.562 1379 3.351 5.738 1379 14.481 15.505 1379 15.921 21.768
1380 1.2495 1.1777 1380 1.013 0.99465 1380 28.878 27.3 1380 3.9332 7.1844 1380 16.125 13.871 1380 16.918 22.304
1381 1.2049 1.1688 1381 1.0167 1.0079 1381 33.651 27.228 1381 4.1869 4.8034 1381 15.772 14.236 1381 17.243 20.103
1382 1.3215 1.247 1382 1.0121 0.99682 1382 33.587 25.23 1382 4.7215 6.1932 1382 16.427 16.363 1382 17.899 22.04
1383 1.3064 1.1537 1383 1.02 1.0101 1383 33.626 29.51 1383 3.8407 5.9942 1383 14.846 13.224 1383 16.115 19.802
1384 1.2159 1.1831 1384 1.0162 1.0067 1384 33.056 33.754 1384 4.7047 5.7738 1384 15.356 13.528 1384 18.023 22.213
1385 1.2138 1.1332 1385 1.0204 1.0193 1385 33.617 31.529 1385 3.8206 2.4172 1385 15.185 11.026 1385 17.052 16.139
1386 1.174 1.1424 1386 1.0161 1.0104 1386 34.133 25.289 1386 4.4713 4.586 1386 17.193 13.429 1386 18.846 17.937
1387 1.1743 1.0948 1387 1.0246 1.013 1387 31.907 27.423 1387 4.1887 5.2415 1387 11.4 13.031 1387 13.265 19.369
1388 1.1395 1.1372 1388 1.0156 1.0077 1388 29.141 33.222 1388 4.9699 4.3078 1388 14.419 20.831 1388 16.695 25.058
1389 1.2506 1.1558 1389 1.0203 1.0163 1389 30.936 29.389 1389 6.4348 4.3498 1389 15.61 16.518 1389 20.213 20.101
1390 1.1706 1.1661 1390 1.0261 1.015 1390 33.195 34.239 1390 3.967 7.8307 1390 15.409 21.899 1390 16.641 30.855
1391 1.1531 1.1875 1391 1.0304 1.0148 1391 33.705 38.88 1391 5.2973 9.2706 1391 11.899 18.869 1391 14.97 28.123
1392 1.1293 1.105 1392 1.0268 1.0222 1392 28.219 34.47 1392 5.1315 5.0646 1392 13.652 16.266 1392 15.636 21.419
1393 1.1575 1.0913 1393 1.0241 1.0304 1393 27.706 28.47 1393 5.1415 3.9362 1393 13.191 12.707 1393 17.343 18.033
1394 1.1207 1.1432 1394 1.0331 1.0328 1394 28.143 26.367 1394 4.2957 3.6808 1394 13.325 12.9 1394 16.951 17.293
1395 1.2223 1.1832 1395 1.0134 1.0254 1395 29.578 24.988 1395 4.9684 7.1516 1395 14.43 13.389 1395 15.277 21.007
1396 1.2754 1.1741 1396 1.0247 1.01 1396 29.044 29.23 1396 4.6562 9.1328 1396 12.762 17.139 1396 14.787 25.323
1397 1.1804 1.192 1397 1.0262 1.016 1397 26.85 31.145 1397 3.564 9.769 1397 12.464 18.364 1397 14.171 28.798
1398 1.2033 1.2086 1398 1.0228 1.027 1398 30.89 33.518 1398 5.4091 9.791 1398 14.308 14.896 1398 17.821 26.069
1399 1.2021 1.1963 1399 1.0262 1.0284 1399 29.638 24.937 1399 5.1747 5.3168 1399 14.097 13.558 1399 17.387 20.239
1400 1.1706 1.1508 1400 1.0246 1.0279 1400 27.613 28.161 1400 4.1165 6.7269 1400 12.947 16.076 1400 16.332 23.041
1401 1.0462 1.1247 1401 1.0362 1.0349 1401 26.467 26.226 1401 3.67 5.6902 1401 13.811 13.178 1401 16.86 20.556
1402 1.1195 1.1363 1402 1.037 1.0475 1402 29.357 23.684 1402 4.5722 3.6665 1402 12.576 10.436 1402 15.45 15.893
1403 1.1436 1.1664 1403 1.0337 1.0431 1403 30.152 29.511 1403 4.0653 7.2885 1403 13.07 18.094 1403 13.899 27.851
1404 1.1307 1.1189 1404 1.0334 1.0436 1404 28.983 31.21 1404 4.0112 7.5804 1404 13.171 18.498 1404 14.169 29.125
1405 1.1164 1.1633 1405 1.039 1.0487 1405 25.681 25.534 1405 3.5967 5.2395 1405 13.468 16.058 1405 15.011 23.455
1406 1.1542 1.1979 1406 1.0343 1.0437 1406 29.412 26.534 1406 5.0208 7.1367 1406 15.689 18.181 1406 17.896 28.197
1407 1.1704 1.156 1407 1.035 1.0353 1407 32.475 29.952 1407 4.6559 8.7388 1407 15.787 22.449 1407 17.296 30.535
1408 1.1606 1.1492 1408 1.035 1.0552 1408 31.47 33.43 1408 5.6472 4.0526 1408 15.6 11.677 1408 17.927 13.839
1409 1.1289 1.1477 1409 1.0373 1.0467 1409 27.127 17.035 1409 3.7418 4.3931 1409 12.857 13.106 1409 15.289 15.992
1410 1.1999 1.1545 1410 1.0229 1.0535 1410 26.172 22.088 1410 5.1959 4.3596 1410 14.621 14.663 1410 16.648 19.94
1411 1.1002 1.0985 1411 1.0349 1.0408 1411 28.093 22.969 1411 4.7263 6.0209 1411 13.191 18.41 1411 16.034 24.847
1412 1.1512 1.0459 1412 1.0308 1.0472 1412 27.844 29.893 1412 5.2816 5.0259 1412 14.225 16.754 1412 17.544 20.896
1413 1.1051 1.0473 1413 1.0319 1.0538 1413 29.228 23.235 1413 4.4115 5.8717 1413 13.142 12.153 1413 16.57 18.019
1414 1.1014 1.0603 1414 1.0326 1.0684 1414 30.285 24.177 1414 5.3588 3.776 1414 13.702 11.976 1414 16.809 17.96
1415 1.107 1.121 1415 1.0312 1.0358 1415 31.883 23.143 1415 4.1893 8.4407 1415 13.168 16.317 1415 15.404 24.047
1416 1.0899 1.2165 1416 1.0262 1.026 1416 29.079 28.14 1416 4.9083 9.4341 1416 12.55 13.649 1416 13.997 22.081
1417 1.0912 1.1474 1417 1.0256 1.0311 1417 31.57 22.608 1417 6.0443 10.811 1417 13.193 16.546 1417 17.025 27.597
1418 1.0459 1.0554 1418 1.034 1.0451 1418 27.738 24.383 1418 5.3073 6.0743 1418 14.366 16.305 1418 17.607 22.292
1419 1.0386 1.0714 1419 1.0372 1.0418 1419 32.939 28.265 1419 5.0827 6.7139 1419 14.875 18.849 1419 17.945 25.626
1420 1.0141 1.0912 1420 1.0434 1.0566 1420 30.946 26.415 1420 5.0609 6.6656 1420 12.871 14.271 1420 16.033 22.711
1421 1.0668 1.0944 1421 1.0418 1.0499 1421 30.521 24.644 1421 4.9189 9.3749 1421 10.832 12.788 1421 13.382 24.711
1422 0.99763 1.0823 1422 1.041 1.0516 1422 28.292 20.447 1422 5.4614 9.1143 1422 13.971 12.285 1422 18.186 22.872
1423 1.1125 1.1396 1423 1.033 1.0206 1423 28.885 28.144 1423 6.1781 11.367 1423 13.175 20.628 1423 17.672 32.218
1424 1.0686 1.0605 1424 1.0415 1.0379 1424 28.453 31.634 1424 5.4437 8.5191 1424 13.917 17.012 1424 16.993 25.024
1425 1.0836 1.0955 1425 1.0444 1.0512 1425 29.35 23.951 1425 5.3794 7.3641 1425 12.932 16.564 1425 16.006 25.991
1426 1.0109 1.0849 1426 1.0446 1.0467 1426 33.045 26.282 1426 5.3475 7.1993 1426 13.67 16.431 1426 18.013 23.798
1427 0.9795 1.0348 1427 1.044 1.0478 1427 32.038 29.09 1427 6.1848 6.952 1427 13.918 17.159 1427 18.651 25.503
1428 1.0106 1.0175 1428 1.053 1.0442 1428 34.023 34.349 1428 6.1595 7.4286 1428 13.916 16.493 1428 18.216 24.713
1429 1.087 1.0962 1429 1.0559 1.0398 1429 29.104 28.49 1429 4.1949 9.4771 1429 13.055 15.12 1429 15.396 25.398
1430 1.0638 1.0566 1430 1.0545 1.0417 1430 27.336 31.186 1430 4.0594 5.6538 1430 12.013 15.756 1430 14.804 23.725
1431 0.95754 1.0383 1431 1.0514 1.0212 1431 28.454 26.229 1431 4.7838 7.6861 1431 14.075 19.259 1431 16.838 26.022
1432 1.0085 1.0884 1432 1.0551 1.0208 1432 32.165 27.733 1432 5.9183 7.2606 1432 14.708 20.666 1432 18.288 29.045
1433 1.0445 1.0398 1433 1.0567 1.0298 1433 32.735 27.106 1433 5.5405 7.1261 1433 14.477 15.551 1433 18.898 23.845
1434 1.0457 0.99734 1434 1.0565 1.0328 1434 30.861 29.608 1434 5.0712 5.8269 1434 13.064 14.957 1434 16.483 20.355
1435 0.98433 1.0286 1435 1.0597 1.0188 1435 29.219 29.663 1435 5.163 6.0498 1435 12.823 18.966 1435 15.971 25.609

Figure 7: Illustration of snowstorms effects: winter 2009-2010 in Washington D.C.

Quantity index: Week Quantity index:Food Quantity index: Care Price index: Week Price index: Food Price index: Care Frequency of price changes: Week Frequency of price changes: Food Frequency of price changes: Care Mean discount: Week Mean discount: Food Mean discount: Care Share of items on sale: Week Share of items on sale: Food Share of items on sale: Care Share of revenues from items on sale: Week Share of revenues from items on sale: Food Share of revenues from items on sale: Care
1574 1.0066 1.0088 1574 0.99896 1.0065 1574 33.671 29.928 1574 8.7263 6.014 1574 16.154 11.888 1574 23.658 21.776
1575 0.9974 1.0245 1575 0.99814 0.99726 1575 30.747 30.016 1575 8.7854 7.4266 1575 14.602 13.523 1575 22.466 26.183
1576 1.0044 0.97989 1576 1.0001 0.99988 1576 31.411 31.374 1576 8.0595 5.1799 1576 15.976 14.737 1576 24.178 21.892
1577 0.98137 1.0087 1577 1.0011 0.99381 1577 32.773 34.916 1577 8.2062 7.6088 1577 16.589 16.893 1577 25.199 30.84
1578 1.021 1.0007 1578 1.0029 1.0011 1578 32.278 31.853 1578 8.3832 5.9255 1578 16.139 15.446 1578 24.496 25.73
1579 0.98964 0.9782 1579 0.9988 1.0015 1579 33.319 30.063 1579 8.4923 6.1037 1579 17.441 14.912 1579 25.234 23.828
1580 1.0369 1.0215 1580 1.0071 0.99997 1580 35.223 27.924 1580 9.3671 6.4091 1580 15.802 14.645 1580 26.094 23.529
1581 1.1013 1.0817 1581 1.0033 1.0039 1581 35.535 29.785 1581 8.1345 5.6336 1581 18.475 12.957 1581 26.141 23.157
1582 1.2104 1.1997 1582 0.99836 0.99617 1582 33.064 27.763 1582 8.6511 8.9949 1582 18.441 15.998 1582 27.822 34.713
1583 0.9744 0.93183 1583 0.99946 1.0053 1583 33.737 30.34 1583 8.8853 4.5167 1583 17.652 12.82 1583 26.008 17.472
1584 0.97625 0.99169 1584 1.0008 1.0043 1584 31.537 26.179 1584 7.9718 6.3024 1584 16.52 12.477 1584 23.435 20.462
1585 0.97364 0.96256 1585 0.99848 1.0012 1585 35.786 31.221 1585 8.9145 6.2951 1585 17 16.39 1585 25.233 25.051
1586 0.97617 1.0263 1586 1.0003 0.99955 1586 32.706 30.756 1586 8.9625 8.3958 1586 17.649 14.883 1586 26.105 27.438
1587 0.98809 1.0792 1587 1.0005 0.99385 1587 30.998 22.976 1587 9.1977 10.629 1587 17.256 16.727 1587 25.848 34.123
1588 1.4493 1.2707 1588 0.99953 1.0005 1588 30.923 26.029 1588 8.9784 4.8257 1588 17.719 15.354 1588 24.941 20.591
1589 1.1264 0.95232 1589 1.0038 1.0054 1589 33.461 24.052 1589 7.3271 3.7262 1589 16.596 11.271 1589 23.562 14.44
1590 0.98427 1.0054 1590 1.0008 0.99065 1590 32.418 29.013 1590 9.3863 7.3481 1590 16.627 16.155 1590 24.26 28.018
1591 0.97064 1.0195 1591 1.0047 0.9921 1591 30.76 28.691 1591 7.1532 6.7864 1591 16.215 15.58 1591 22.822 26.695
1592 0.96876 0.9303 1592 0.99958 0.99517 1592 32.253 27.728 1592 8.7314 5.3164 1592 17.655 13.677 1592 25.955 16.333
1593 0.98555 1.0065 1593 1.0016 0.99968 1593 35.327 27.887 1593 7.6945 6.3739 1593 17.867 13.866 1593 25.466 27.125
1594 0.96964 0.97832 1594 1.0046 0.99814 1594 30.835 30.842 1594 7.2313 6.3541 1594 15.765 13.381 1594 23.17 23.435
1595 0.97145 0.99772 1595 1.0003 0.99832 1595 30.93 28.123 1595 7.9926 5.7504 1595 16.448 13.698 1595 23.995 23.823
1596 0.99418 0.96454 1596 0.99919 0.99532 1596 33.585 29.31 1596 8.9005 5.3545 1596 16.888 14.501 1596 24.992 21.465
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