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Article Dans Une Revue Economics Letters Année : 2017

How to determine exchange rates under risk neutrality: A note

Résumé

The goal of this paper is to determine the exchange rates consistent with an equilibrium in the international assets and goods markets. We present a wealth model of a two-country economy where financial assets and goods are traded. We consider the case where the agents are risk neutral, a very common assumption in finance in order to have explicit solutions for prices, and, in particular, in international finance for exchange rates using the non-null Pareto optima. We show that the Pareto optima in the international assets and goods markets are found to coincide with the net trade allocations. More notably, under a no-arbitrage condition in the assets markets, we can define an exchange rates system for which PPP holds. We provide conditions to have a non-null Pareto optimum to compute the exchange rates. We give an example with a non-null Pareto optimum associated with the determination of the exchange rate. © 2017 Elsevier B.V.
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Dates et versions

hal-02877955 , version 1 (22-06-2020)

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Stefano Bosi, Patrice Fontaine, Cuong Le Van. How to determine exchange rates under risk neutrality: A note. Economics Letters, 2017, 157, pp.92--96. ⟨10.1016/j.econlet.2017.05.015⟩. ⟨hal-02877955⟩
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