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The dynamics of ex-ante risk premia in the foreign exchange market: Evidence from the yen/usd exchange rate Using survey data

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  • Georges Prat
  • Remzi Uctum

Abstract

Using financial experts’ Yen/USD exchange rate expectations provided by Consensus Forecasts surveys (London), this paper aims to model the 3 and 12-month ahead ex-ante risk premia measured as the difference between the expected and forward exchange rates. According to a two-country portfolio asset pricing model, the risk premium is modeled as the product of three factors: a constant risk aversion coefficient, the expected variance of the rate of change in the real exchange rate, and the spread between domestic agent’s market position in foreign assets and foreign agent’s market position in domestic assets (net market position). When the returns are partially predictable, the expected variance is horizondependent and this is a sufficient condition for agents not to require at any time a unique risk premium for all maturities but a set of premia scaled by the time horizon of the investment. For each horizon the expected variance is assumed to depend on the historical values of the variance and on the unobservable maturity-dependent net market positions which have been estimated through a state space model using the Kalman filter methodology. We find that the model explains satisfactorily both the common and the non-random specific time-patterns of the 3- and 12-month ex-ante premia.

Suggested Citation

  • Georges Prat & Remzi Uctum, 2008. "The dynamics of ex-ante risk premia in the foreign exchange market: Evidence from the yen/usd exchange rate Using survey data," EconomiX Working Papers 2008-2, University of Paris Nanterre, EconomiX.
  • Handle: RePEc:drm:wpaper:2008-2
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    Keywords

    risk premium; foreign exchange market; international asset pricing model;

    JEL classification:

    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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