Trade Integration and Risk Sharing


Book Description

What are the effects of increased trade in goods and services on the trade balance? We study the effects of reducing transport costs in a Ricardian model with complete asset markets and find that this increases the volatility of the trade balance. This result applies regardless of whether supply or demand shocks are the main source of economic fluctuations. Both type of shocks generate fluctuations in the trade balance that are in part moderated by stabilizing movements in the terms of trade. Trade integration dampens these terms of trade movements and, for a given distribution of shocks, amplifies fluctuations in the trade balance. To overturn this result, one must assume that either trade integration is sufficiently biased towards goods with strong comparative advantage and/or risk aversion is sufficiently extreme. We calibrate the model to U.S. data and find that, for reasonable parameter values, increased trade in services could double the volatility of the trade balance. Keywords: International trade, risk sharing, trade integration, trade balance. JEL Classification: F15, F36, G15.







Capital Market Integration and Consumption Risk Sharing Over the Long Run


Book Description

We empirically investigate time variation in capital market integration and consumption risk sharing using data for 16 countries from 1875 to 2012. We show that there has been considerable variation over time in the degrees of capital market integration and consumption risk sharing and that higher capital market integration forecasts more consumption risk sharing in the future. This finding is robust to controlling for trade openness and exchange rate volatility as alternative drivers of risk sharing. Finally, we calculate the welfare costs of imperfect consumption risk sharing and find that these costs vary over time, line up with variation in risk sharing, and are quite substantial during periods of low risk sharing.




How Does Financial Globalization Affect Risk Sharing? Patterns and Channels


Book Description

In theory, one of the main benefits of financial globalization is that it should allow for more efficient international risk sharing. This paper provides a comprehensive empirical evaluation of the patterns of risk sharing among different groups of countries and examines how international financial integration has affected the evolution of these patterns. Using a variety of empirical techniques, we conclude that there is at best a modest degree of international risk sharing, and certainly nowhere near the levels predicted by theory. In addition, only industrial countries have attained better risk sharing outcomes during the recent period of globalization. Developing countries have, by and large, been shut out of this benefit. The most interesting result is that even emerging market economies, which have experienced large increases in cross-border capital flows, have seen little change in their ability to share risk. We find that the composition of flows may help explain why emerging markets have not been able to realize this presumed benefit of financial globalization. In particular, our results suggest that portfolio debt, which has dominated the external liability stocks of most emerging markets until recently, is not conducive to risk sharing.




Global Value Chains and International Risk Sharing


Book Description

Unlike final-goods trade, intermediate-input trade through Global Value Chains (GVCs) creates supply-side linkages across borders. We show that, even when GVCs themselves are efficient, they have welfare implications because these linkages affect countries’ ability to share risks in incomplete financial markets. This novel interaction between trade and finance arises from a distinct channel of cross-border transmission with GVCs, the marginal-cost effect. Productivity shocks, by moving relative prices, impact the marginal cost of production both at home and abroad, and therefore, in equilibrium, their relative supply. When international financial markets are incomplete, these supply-side linkages will affect household wealth in both countries, and, in turn, the degree of international risk sharing. The direction and strength of this effect varies with the trade elasticity and the degree of GVC integration, with non-monotonic effects leading to ‘fragmentation traps’ in which small increases in GVC integration reduce risk sharing, while large increases would improve it. We show that in the quantitatively relevant case, GVCs reduce cross-border misalignments, and so endogenously support international risk sharing.




How Does Financial Globalization Affect Risk Sharing? Patterns and Channels


Book Description

In theory, one of the main benefits of financial globalization is that it should allow for more efficient international risk sharing. This paper provides a comprehensive empirical evaluation of the patterns of risk sharing among different groups of countries and examines how international financial integration has affected the evolution of these patterns. Using a variety of empirical techniques, we conclude that there is at best a modest degree of international risk sharing, and certainly nowhere near the levels predicted by theory. In addition, only industrial countries have attained better risk sharing outcomes during the recent period of globalization. Developing countries have, by and large, been shut out of this benefit. The most interesting result is that even emerging market economies, which have experienced large increases in cross-border capital flows, have seen little change in their ability to share risk. We find that the composition of flows may help explain why emerging markets have not been able to realize this presumed benefit of financial globalization. In particular, our results suggest that portfolio debt, which has dominated the external liability stocks of most emerging markets until recently, is not conducive to risk sharing.




Trade Integration and Risk Sharing


Book Description

What are the effects of increased trade in goods and services on the trade balance? We study the effects of reducing transport costs in a Ricardian model with complete asset markets. Trade integration has three effects on the structure of the economy: a reduction in the home bias in consumption, an increase in the degree of international competition in goods markets, and a reduction in real exchange rate volatility. The reduction in the home bias increases the volatility of the trade balance regardless of the source of shocks. Except for the case where supply shocks lead to counter-cyclical trade balances, (i) the increase in international competition also increases the volatility of the trade balance; and (ii) the reduction in real exchange rate volatility increases the volatility of the trade balance if risk aversion is low but lowers it if risk aversion is high. The opposite applies when supply shocks lead to counter-cyclical trade balances. We calibrate the model to U.S. data and provide a quantitative assessment of the effects of increased trade in services on the trade balance.




Trade and Financial Integration in East Asia


Book Description

In this paper we explore three important areas where deeper trade and financial integration in East Asia can influence: (1) business cycle co-movements in the region, (2) the extent of risk sharing across countries and (3) price co-movements across countries. We find evidence that trade integration enhances co-movements of output but not of consumption across countries. Especially the fact that trade integration does not raise co-movements of consumption as much as that of output is interpreted as trade integration does not improve the extent of risk sharing. Co-movements of price arise most significantly as trade integration deepens, lowering the border effects and allowing better opportunities for resource reallocation across countries. In contrast, financial integration demonstrates much weaker evidence of enhancing co-movements across countries. Deeper financial integration improves price co-movements weakly but does not enhance output or consumption co-movements at all. However, since the current level of financial integration in East Asia is quite low, our evidence is too early to firmly determine the role of financial integration.




Pooling Risk Among Countries


Book Description

In this paper, we identify the groups of countries where international risk-sharing opportunities are most attractive. We show that the bulk of risk-sharing gains can be achieved in groups consisting of as few as seven members, and that further marginal benefits quickly become negligible. For many such small groups, the welfare gains associated with risk sharing can amount to one order of magnitude larger than Lucas's classic calibration suggested for the United States, under similar assumptions on utility. Why do we not observe more arrangements of this type? Large welfare gains can only be achieved within groups where contracts are probably seen as relatively difficult to enforce. International diversification can thus yield substantial gains, but these may remain untapped owing to potential partners' weak institutional quality and a history of default on international obligations. Noting that existing risk sharing arrangements often have a regional dimension, we speculate that shared economic interests such as common trade may help sustain such arrangements, though risk-sharing gains are smaller when membership is constrained on a regional basis.




Commodity Trade and International Risk Sharing


Book Description

This paper evaluates the gains from international risk sharing in some simple general-equilibrium models with output uncertainty. Under empirically plausible calibration, the Incremental loss from a ban on international portfolio diversification is estimated to be quite small--0.15 percent of output per year is a representative figure. Even the theoretical gains from asset trade may disappear under alternative sets of assumptions on preferences and technology. The paper argues that the small magnitude of potential trade gains, when coupled with small costs of cross-border financial transactions, may explain the apparently inconsistent findings of empirical studies on the degree of international capital mobility.