A general equilibrium pricing model with speculation, quantity risk, price risk and foreign exchange risk
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This paper develops a general equilibrium model where prices and foreign exchange rates are endogenous and based upon more fundamental determinants. Speculative behavior leading to position taking in claims on foreign risky commodities is explained. It is shown that in a multicurrency environment with less than complete markets and sequential trading opportunities, heterogenous expectations instigate this behavior; speculation occurs only when news (new information) is anticipated to emerge which can lead to a revision in prices and foreign exchange rates. However, it is contended that although foreign exchange risk and price risk do exist in such a market, they are results of the underlying and inescapable quantity risk. Furthermore, in well functioning markets, the risk that emanates from position taking in state contingent claims on foreign commodities and which influences final consumption is quantity risk. The distinction drawn between the three types of risks and the hierarchy established among the three markets with which these risks are associated has implications for international financial management, especially as it pertains to multinational corporations' foreign exchange exposure management. 1991.
