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Working Paper
The Hedging Channel of Exchange Rate Determination
We document the exchange rate hedging channel that connects country-level measures of net external financial imbalances with exchange rates. In times of market distress, countries with large positive external imbalances (e.g. Japan) experience domestic currency appreciation, and crucially, forward exchange rates appreciate relatively more than the spot after adjusting for interest rate differentials. Countries with large negative foreign asset positions experience the opposite currency movements. We present a model demonstrating that exchange rate hedging coupled with intermediary constraints ...
Working Paper
Financial market reactions to the Russian invasion of Ukraine
This article analyzes financial market reactions to the Russia-Ukraine war with a focus on the opening weeks. Markets did not completely anticipate the war and asset price reactions strengthened from the first week—when there were hopes for a quick resolution—to the second week, when prices generally peaked and began to partially revert to pre-war values. Exposure to commodity trade and trade with Russia-Ukraine determined market perceptions of the riskiness of equity and foreign exchange assets. Credit default swap prices on sovereign debt and breakeven inflation rates indicate that ...
Working Paper
Policy Rules and Large Crises in Emerging Markets
In response to the COVID-19 pandemic, Latin American countries temporarily suspended rules limiting debt, fiscal and monetary policies. Despite this increase in flexibility, the crisis implied a substantial deterioration of macroeconomic variables (e.g., real GDP declined by 9.5%) and high welfare costs (which we estimate as equivalent to a 13% one-time reduction in non-tradable consumption). This paper studies a sovereign default model with fiscal and monetary policies to assess the policy response and evaluate the gains from flexibility in times of severe distress.
Working Paper
Domestic Policies and Sovereign Default
This paper incorporates fiscal and monetary policies into a model of sovereign default. In addition to the standard present-bias vs default-risk tradeoff faced by governments when choosing debt, distortionary policy instruments introduce an intertemporal tradeoff, which may mitigate or exacerbate the incentives to accumulate debt. Taxation, the money growth rate and currency depreciation all increase with the level of debt. The model reproduces standard business cycle statistics, the response of spreads, inflation and growth to terms-of-trade shocks, and the cyclical properties of fiscal and ...
Working Paper
Domestic Policies and Sovereign Default
This paper incorporates fiscal and monetary policies into a model of sovereign default. In addition to the standard present-bias vs default-risk tradeoff faced by governments when choosing debt, distortionary policy instruments introduce an intertemporal tradeoff, which may mitigate or exacerbate the incentives to accumulate debt. Taxation, the money growth rate and currency depreciation all increase with the level of debt. The model reproduces standard business cycle statistics, the response of spreads, inflation and growth to terms-of-trade shocks, and the cyclical properties of fiscal and ...
Working Paper
Seigniorage and Sovereign Default: The Response of Emerging Markets to COVID-19
Monetary policy affects the tradeoffs faced by governments in sovereign default models. In the absence of lump-sum taxation, governments rely on both distortionary taxes and seigniorage to finance expenditure. Furthermore, monetary policy adds a time-consistency problem in debt choice, which may mitigate or exacerbate the incentives to accumulate debt. A deterioration of the terms-of-trade leads to an increase in sovereign-default risk and inflation, and a reduction in growth, which are consistent with the empirical evidence for emerging economies. An unanticipated shock resembling the ...
Working Paper
Seigniorage and Sovereign Default: The Response of Emerging Markets to COVID-19
Monetary policy affects the tradeoffs faced by governments in sovereign default models. In the absence of lump-sum taxation, governments rely on both disortionary taxes and seigniorage to finance expenditure. Furthermore, monetary policy adds a time-consistency problem in debt choice, which may mitigate or exacerbate the incentives to accumulate debt. A deterioration of the terms-of-trade leads to an increase in sovereign-default risk and inflation, and a reduction in growth, which are consistent with the empirical evidence for emerging economies. An unanticipated shock resembling the ...
Working Paper
Can risk explain the profitability of technical trading in currency markets?
Academic studies show that technical trading rules would have earned substantial excess returns over long periods in foreign exchange markets. However, the approach to risk adjustment has typically been rather cursory. We examine the ability of a wide range of models: CAPM, quadratic CAPM, downside risk CAPM, C-CAPM, Carhart?s 4-factor model, an extended C-CAPM with durable consumption, Lustig-Verdelhan (LV) factors, volatility, skewness and liquidity to explain these technical trading returns. No model plausibly accounts for a substantial amount of technical profitability in the foreign ...
Working Paper
Can risk explain the profitability of technical trading in currency markets?
Academic studies show that technical trading rules would have earned substantial excess returns over long periods in foreign exchange markets. However, the approach to risk adjustment has typically been rather cursory. We examine the ability of a wide range of models: CAPM, quadratic CAPM, downside risk CAPM, Carhart’s 4-factor model, the C-CAPM, an extended C-CAPM with durable consumption, Lustig-Verdelhan (LV) carry-trade factor model, and models including macroeconomic factors, and foreign exchange volatility, skewness and liquidity, to explain these technical trading returns. No model ...
Working Paper
Oil Prices, Exchange Rates and Interest Rates
There has been much interest in the relationship between the price of crude oil, the value of the U.S. dollar, and the U.S. interest rate since the 1980s. For example, the sustained surge in the real price of oil in the 2000s is often attributed to the declining real value of the U.S. dollar as well as low U.S. real interest rates, along with a surge in global real economic activity. Quantifying these effects one at a time is difficult not only because of the close relationship between the interest rate and the exchange rate, but also because demand and supply shocks in the oil market in turn ...