July 1997

Bubbles as Payoffs at Infinity

Christian Gilles and Stephen F. LeRoy

Abstract:

We define rational bubbles to be securities with payoffs occurring in the infinitely distant future and investigate the behavior of bubble values. We extend our analysis to a setting of uncertainty. In an infinite-horizon arbitrage-free model of asset prices, we interpret the money market account as the value of a particular bubble; a similar interpretation holds for other assets related to the state-price deflator and to payoffs on bonds maturing in the distant future. We present three applications of this characterization of bubbles.

Full paper (259 KB Postscript)

Keywords: Asset prices, money-market account, state-price deflator

PDF: Full Paper

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