Federal Reserve Bank of Dallas
Globalization Institute Working Papers
Risk sharing in a world economy with uncertainty shocks
This paper analyzes the effects of output volatility shocks and of risk appetite shocks on the dynamics of consumption, trade flows and the real exchange rate, in a two-country world with recursive preferences and complete financial markets. When the risk aversion coefficient exceeds the inverse of the intertemporal substitution elasticity, then an exogenous rise in a country’s output volatility triggers a wealth transfer to that country, in equilibrium; this raises its consumption, lowers its trade balance and appreciates its real exchange rate. The effects of risk appetite shocks resemble those of volatility shocks. In a recursive preferences-complete markets framework, volatility and risk appetite shocks account for a noticeable share of the fluctuations of net exports, net foreign assets and the real exchange rate. These shocks help to explain the high empirical volatility of the real exchange rate and the disconnect between relative consumption growth and the real exchange rate.
Cite this item
Robert Kollmann, Risk sharing in a world economy with uncertainty shocks, Federal Reserve Bank of Dallas, Globalization Institute Working Papers 258, 01 Nov 2015.
- F31 - International Economics - - International Finance - - - Foreign Exchange
- F32 - International Economics - - International Finance - - - Current Account Adjustment; Short-term Capital Movements
- F36 - International Economics - - International Finance - - - Financial Aspects of Economic Integration
- F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics
- F43 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Economic Growth of Open Economies
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