Foreign exchange risk and firm value: an analysis of US pharmaceutical firms

Abstract

Reviews previous research on the impact of changes in exchange rates on firm value and develops hypotheses on the effect of exchange rate exposure on US pharmaceutical firms 1990‐1999. Tests them using data from 523 firms (21 producing proprietary drugs and 32 generic) splite into two sub‐periods (1990‐1994 and 1995‐1999) and explains the methodology. Finds that the proprietary drug producers were negatively affected by the rising US dollar value during the first sub‐period, but positively affected in the second; and that both generic and proprietary companies suffered a one‐month lagged negative effect. Considers the underlying reasons for this and consistency with other research; and calls for more research on the lagged relationship between stock returns and exchange rate risk.

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