September 2008

Current Account Sustainability and Relative Reliability

Stephanie E. Curcuru, Charles P. Thomas, and Francis E. Warnock

Abstract:

The sustainability of the large and persistent U.S. current account deficits is one of the biggest issues currently being confronted by international macroeconomists. Some very plausible theories suggest that the substantial global imbalances can continue in a benign manner, other equally plausible theories predict a disorderly resolution, and in general it is very difficult to discern between competing theories. To inform the debates, we view competing theories through the perspective of the relative reliability of the data the theories rely on. Our analysis of the dark matter theory is cursory; from a relative reliability perspective, it fails as it is built on the assumption that an item that is largely unmeasured is the most accurate component of the entire set of international accounts. Similarly, the best data currently available suggest that U.S. returns differentials are much smaller than implied by the exorbitant privilege theory. Our analysis opens up questions about potential inconsistencies in the international accounts, which we address by providing rough estimates of various holes in the accounts.

Related Material: Data (38 KB ZIP), Data appendix

Full paper (screen reader version)

Keywords: Current account imbalances, international investment, exorbitant privilege, dark matter, financial derivatives, real estate, short sales, R&D

PDF: Full Paper

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Last Update: October 19, 2020