1. INTRODUCTION AND SUMMARY Observers have raised concerns that a future adjustment--that is, narrowing--of the U.S. current account deficit driven by exchange rate depreciation may prove for financial markets and U.S. economics performance (see, inter alia, Edwards, 2005; Eichengreen, 2004; Roubini and Setser, 2005). In particular, it has been suggested that a fall in the dollar could boost interest rates, depress stock prices, and push the economy in to recession. Such developments, it is argued, could out weigh the stimulus provided by a falling dollar via a rise in net exports, particularly if it took some time for net exports to respond. How likely is the disorderly adjustment scenario to arise in practice? One approach to answering this question has been to examine the record of past external adjustments in industrial economies. By and large, such studies suggest that the experience of external adjustment has been reasonably benign and that exchange rate changes associated with adjustment have not led to economic distress. Freund (2005) found, in 25 episodes of current account adjustment in industrial economies, indications of only moderate in gross domestic product (GDP) growth. Croke, Kamin, and Leduc (2006) revisited Freund's sample and found that in episodes where real exchange rates depreciated, growth was maintained: in episodes where real exchange rates did not depreciate, growth tended to decline but that decline likely was the cause rather than the effect of current account Freund and Warnock (2006) and Debelle and Galati (2005) come to similar conclusions, while Gagnon (2005) finds that currency crashes in industrial economics have generally led to lower, not higher, long-term interest rates. In contrast, Edwards (2005) presents results suggesting more disruptive effects of current account adjustment but his methodology may not adequately control for the endogeneity of the current account with respect to growth. These studies, for the most part, tend to undercut the view that a future U.S. external adjustment will be disruptive. Yet, it is generally acknowledged that owing to the size of its economy and of its external deficits, as well as the role of the dollar as the world's principal vehicle currency, external adjustment in the United States may differ greatly from that in other industrial countries. The episodes studied in the above-mentioned articles include only one U.S. experience, the reduction of the trade deficit in the late 1980s, and accordingly, any inferences drawn from them will be dominated by the experience of foreign economics. The purpose of this article is to characterize the effects of external adjustment on macro-economic performance while focusing more closely on the U.S. historical experience. By so doing, we hope to make our findings as relevant as possible to a future U.S. Using data from the past 35 years, this article compares the economic performance of the U.S. economy during three episodes in which the U.S. nominal trade balance deteriorated significantly with economic performance in two episodes during which the trade balance adjusted. The article then examines the extent to which the behavior of key economic variables differed across the two types of episodes. (1) Throughout this article, we refer to a decline of the trade balance (increase in the deficit) as a deterioration and a rise in the trade balance (narrowing of the deficit) as an adjustment. We would caution that in so doing, we do not mean to convey that surpluses are necessarily good and deficits are necessarily bad. In fact, depending on the evolution of domestic and foreign demand, as well as relative prices at home and abroad, trade deficits may be entirely merited and desirable. Rather, we adopt the deterioration/adjustment terminology mainly for reasons of parsimony and clarity. Rises and declines may be misleading without referring explicitly to trade balance surpluses or deficits; widenings and narrowings are subject to the same problem as well as the problem that arises when referring to an episode where the trade balance moves from surplus to deficit or vice versa. …