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Elasticity Optimism
In most macroeconomic models, the substitutability between domestic and foreign goods is calibrated using aggregated data. This imposes homogeneous elasticities across goods, and the calibration is only valid under this assumption. If elasticities are heterogeneous, the aggregate substitutability is a weighted average of good-specific elasticities, which in general cannot be inferred from aggregated data. We identify structurally the substitutability in US goods using multilateral trade data. We impose homogeneity, and find an aggregate elasticity similar in value to conventional macroeconomic estimates. It is more than twice larger with sectoral heterogeneity. We discuss the implications in various areas of international economics.
PPP Strikes Back
We show the importance of a dynamic aggregation bias in accounting for the PPP puzzle. We prove that established time-series and panel methods substantially exaggerate the persistence of real exchange rates because of heterogeneity in the dynamics of disaggregated relative prices. When heterogeneity is properly taken into account, estimates of the real exchange rate half-life fall dramatically, to little more than one year, or significantly below Rogoff's "consensus view" of three to five years. We show that corrected estimates are consistent with plausible nominal rigidities, thus, arguably, solving the PPP puzzle.
Trade, Finance, Specialization, and Synchronization
The paper investigates the determinants of business cycles synchronization across regions. It uses both international and intranational data to evaluate the linkages between trade in goods, trade in financial assets, specialization and business cycles synchronization using a system of simultaneous equations. The results are as follows: (i) Simultaneity is important, as both trade and financial openness have a direct and an indirect effect on cycle synchronization. (ii) A variety of alternative measures of financial integration suggest that regions with strong financial links are significantly more synchronized, though they are also more specialized. (iii) Specialization patterns have a sizab...
The overhang hangover
"The authors revisit the debt overhang question. They first use nonparametric techniques to isolate a panel of countries on the downward sloping section of a debt Laffer Curve. In particular, overhang countries are ones where a threshold level of debt is reached in sample, beyond which (initial) debt ends up lowering (subsequent) growth. On average, significantly negative coefficients appear when debt face value reaches 60 percent of GDP or 200 percent of exports, and when its present value reaches 40 percent of GDP or 140 percent of exports. Second, the authors depart from reduced form growth regressions and perform direct tests of the theory on the thus selected sample of overhang countrie...
Finance & Development, June 2003
This paper describes the importance of luck, timing, and political institutions in beating inflation. The paper highlights that countries experiencing high inflation typically make several disinflation attempts, some of which succeed only temporarily. If a country trying to stabilize prices and wages is unlucky enough to be exposed to severe external shocks—for example, a decline in demand for its exports—during its disinflation, the likelihood of failure is increased. A shock such as an increase in U.S. interest rates makes failure more likely for a country with an open capital account.
International Transmission of Bank and Corporate Distress
The paper evaluates how increases in banks’ and nonfinancial corporates’ default risk are transmitted in the global economy, using in a vector autoregression model for 30 advanced and emerging economies for the period from January 1996 to December 2008. The results point to two-way causality between bank and corporate distress and to significant global macroeconomic and financial spillovers from either type of distress when it originates in a systemic economy. Corporate distress in advanced economies has a larger impact on economic growth in emerging economies than bank distress in advanced economies has. In contrast, activity in advanced economies is more vulnerable to bank distress than to corporate distress.
The Dynamics of Asian Financial Integration
The ongoing global financial crisis has manifested a remarkable degree of global financial integration—and its implications—for emerging Asian financial markets. The current crisis will not and should not deter the progress that the region has made toward financial openness and integration. However, events like this clearly demonstrate that financial liberalization and integration is not without risks. Hence, emerging Asian economies' growing financial ties have motivated us to look closer at the repercussions of increased financial integration and evaluate the benefits of risk sharing and better access to international capital markets against the costs of cross-border financial contagio...
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Systemic Risk, Crises, and Macroprudential Regulation
A framework for macroprudential regulation that defines systemic risk and macroprudential policy, describes macroprudential tools, and surveys the effectiveness of existing macroprudential regulation. The recent financial crisis has shattered all standard approaches to banking regulation. Regulators now recognize that banking regulation cannot be simply based on individual financial institutions' risks. Instead, systemic risk and macroprudential regulation have come to the forefront of the new regulatory paradigm. Yet our knowledge of these two core aspects of regulation is still limited and fragmented. This book offers a framework for understanding the reasons for the regulatory shift from ...
Cross-Border Listings, Capital Controls, and U.S. Equity Flows to Emerging Markets
We analyze capital flows to emerging markets in a framework that incorporates two quantitative measures of financial integration, the intensity of capital controls and the extent of cross border listings, while controlling for traditional global (push) and country specific (pull) factors. Two important results emerge. First, the cross listing of an emerging market firm on a U.S. exchange is an important but short lived capital flows event, suggesting that the cross listed stock is in effect a new security that U.S. investors quickly bring into their portfolios. Second, the effect of financial liberalization on capital flows is more nuanced than is suggested by event studies: A reduction in capital controls results in increased inflows only when the controls are binding. Among the standard push and pull factors, global factors are important-slack U.S. economic activity is associated with increased flows to emerging markets-and U.S. investors appear to chase expected, but not past, returns.
