Doomed to Deficits? Aggregate U.S. Trade Flows Re-Examined

This paper examines the stability of import and export demand functions for the United States over the 1975q1-2001q2 period. Using the Johansen maximum likelihood approach, an export demand function is readily identified. In contrast, there appears to be a structural break in the import demand function in 1995; specifications incorporating this break pass tests for cointegration, although the price elasticity is not statistically significant. Only when excluding computers and parts from the import series is a stable import demand function detected. The resulting point estimates do not exhibit the income asymmetry typically found in other studies of aggregate U.S. trade flows.

Supply Capacity, Vertical Specialisation andTrade Costs: The Implications for Aggreagate US Trade Flow Equations

This paper re-examines aggregate and disaggregate import and export demand functions for the United States over the 1975-2010 period. This re-examination is warranted because (1) income elasticities are too high to be warranted by standard theories, and (2) remain high even when it is assumed that supply factors are important. These findings suggest that the standard models omit important factors. An empirical nvestigation ndicates that the rising importance of vertical specialization combined with changing tariff rates and transportation costs explains some of results. Accounting for these factors ields more plausible estimates of income elasticities.imports; exports; elasticities; vertical specialization; production fragmentation; trade costs.

Supply Capacity, Vertical Specialization and Tariff Rates: The Implications for Aggregate U.S. Trade Flow Equations

This paper re-examines aggregate and disaggregate import and export demand functions for the United States. This re-examination is warranted because (1) income elasticities are too high to be warranted by standard theories, and (2) remain high even when it is assumed that supply factors are important. These findings suggest that the standard models omit important factors. An empirical investigation indicates that the rising importance of vertical specialization combined with decreasing tariffs rates explains some of results. Accounting for these factors yields more plausible estimates of income elasticities, as well as smaller prediction errors.

Testing Uncovered Interest Parity at Short and Long Horizons during the Post-Bretton Woods Era

The hypothesis that interest rate differentials are unbiased predictors of future exchange rate movements has been almost universally rejected in empirical studies. In contrast to previous studies, which have used short-horizon data, we test this hypothesis using interest rates on longer-maturity bonds for the U.S., Germany, Japan and Canada. The results of these long-horizon regressions are much more positive -- the coefficients on interest differentials are of the correct sign, and most are closer to the predicted value of unity than to zero. These results are robust to the use of different data frequencies, sample periods, yield definitions, and base currencies. We appeal to an econometric interpretation of the results, which focuses on the presence of simultaneity in a cointegration framework.

Productivity and the Euro-Dollar Exchange Rate Puzzle

This paper documents the evidence for a productivity based model of the dollar/euro real exchange rate over the 1985-2001 period. We estimate cointegrating relationships between the real exchange rate, productivity, and the real price of oil using the Johansen (1988) and Stock-Watson (1993) procedures. We find that each percentage point in the US-Euro area productivity differential results in a five percentage point real appreciation of the dollar. This finding is robust to the estimation methodology, the variables included in the regression, and the sample period. We conjecture that productivity-based models cannot explain the observed patterns with the standard set of assumptions, and describe a case in which the model can be reconciled with the observed data.

Capital Account Liberalization, Institutions and Financial Development: Cross Country Evidence

The empirical relationship between capital controls and the financial development of credit and equity markets is examined. We extend the literature on this subject along a number of dimensions. Specifically, we (1) investigate a substantially broader set of proxy measures of financial development; (2) create and utilize a new index based on the IMF measures of exchange restrictions that incorporates a measure of the intensity of capital controls; and (3) extend the previous literature by systematically examining the implications of institutional (legal) factors. The results suggest that the rate of financial development, as measured by private credit creation and stock market activity, is linked to the existence of capital controls. However, the strength of this relationship varies with the empirical measure used, and the level of development. These results also suggest that only in an environment characterized by a combination of a higher level of legal and institutional development will the link between financial openness and financial development be readily detectable. A disaggregated analysis indicates that in emerging markets the most important components of these legal factors are the levels of shareholder protection and of accounting standards.

What Matters for Financial Development? Capital Controls, Institutions, and Interactions

We extend our earlier work, focusing on the links between capital account liberalization, legal and institutional development, and financial development, especially that in equity markets. In a panel data analysis encompassing 108 countries and twenty years ranging from 1980 to 2000, we explore several dimensions of the financial sector. First, we test whether financial openness can lead to equity market development when we control for the level of legal and institutional development. Then, we examine whether the opening of the goods sector is a precondition for financial opening. Finally, we investigate whether a well-developed banking sector is a precondition for financial liberalization to lead to equity market development and also whether bank and equity market development complements or substitutes. Our empirical results suggest that a higher level of financial openness contributes to the development of equity markets only if a threshold level of general legal systems and institutions is attained, which is more prevalent among emerging market countries. Among emerging market countries, a higher level of bureaucratic quality and law and order, as well as the lower levels of corruption, increases the effect of financial opening in fostering the development of equity markets. We also find that the finance-related legal/institutional variables do not enhance the effect of capital account opening as strongly as the general legal/institutional variables. In examining the issue of the sequencing, we find that the liberalization in cross-border goods transactions is found to be a precondition for capital account liberalization. Our findings also indicate that the development in the banking sector is a precondition for equity market development, and that the developments in these two types of financial markets have synergistic effects.

Conventional and Unconventional Approaches to Exchange Rate Modeling and Assessment

We examine the relative predictive power of the sticky price monetary model, uncovered interest parity, and a transformation of net exports and net foreign assets. In addition to bringing Gourinchas and Rey’s new approach and more recent data to bear, we implement the Clark and West (forthcoming) procedure for testing the significance of out-of-sample forecasts. The interest rate parity relation holds better at long horizons and the net exports variable does well in predicting exchange rates at short horizons in-sample. In out-of-sample forecasts, we find evidence that our proxy for Gourinchas and Rey’s measure of external imbalances outperforms a random walk at short horizons as do some of other models, although no single model uniformly outperforms the random walk forecast.

The Determinants of the Global Digital Divide: A Cross-Country Analysis of Computer and Internet Penetration

To identify the determinants of cross-country disparities in personal computer and Internet penetration, we examine a panel of 161 countries over the 1999-2001 period. Our candidate variables include economic variables (income per capita, years of schooling, illiteracy, trade openness), demographic variables (youth and aged dependency ratios, urbanization rate), infrastructure indicators (telephone density, electricity consumption), telecommunications pricing measures, and regulatory quality. With the exception of trade openness and the telecom pricing measures, these variables enter in as statistically significant in most specifications for computer use. A similar pattern holds true for Internet use, except that telephone density and aged dependency matter less. The global digital divide is mainly but by no means entirely accounted for by income differentials. For computers, telephone density and regulatory quality are of second and third importance, while for the Internet, this ordering is reversed. The region-specific explanations for large disparities in computer and Internet penetration are generally very similar. Our results suggest that public investment in human capital, telecommunications infrastructure, and the regulatory infrastructure can mitigate the gap in PC and Internet use.