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Home / SNB News / WP – 2023-11-06 – Romain Baeriswyl, Alex Oktay and Marc-Antoine Ramelet: Exchange rate shocks and equity prices: the role of currency denomination

WP – 2023-11-06 – Romain Baeriswyl, Alex Oktay and Marc-Antoine Ramelet: Exchange rate shocks and equity prices: the role of currency denomination

Summary:
Keywords International asset pricing, Law of one price, Exchange rate shocks, Cross-listing We find that the response of stock prices to the exchange rate reflects a currency denomination effect—that is, a change in the relative international value of firms’ cash flows and equity—rather than a change in domestic economic conditions. To do so, we compute exogenous movements for the Swiss franc on SNB announcement days and trace their effects on Swiss stocks. Exploiting firm heterogeneity reveals that the prices of stocks with foreign-denominated cash flows are considerably more sensitive to the exchange rate. Using the staggered introduction of American Depositary Receipts in

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Keywords
International asset pricing, Law of one price, Exchange rate shocks, Cross-listing

We find that the response of stock prices to the exchange rate reflects a currency denomination effect—that is, a change in the relative international value of firms’ cash flows and equity—rather than a change in domestic economic conditions. To do so, we compute exogenous movements for the Swiss franc on SNB announcement days and trace their effects on Swiss stocks. Exploiting firm heterogeneity reveals that the prices of stocks with foreign-denominated cash flows are considerably more sensitive to the exchange rate. Using the staggered introduction of American Depositary Receipts in Switzerland, we provide causal evidence that cross-listing markedly amplifies the sensitivity of domestic stock prices to exchange rate fluctuations, consistent with the law of one price. Stock market movements that follow central bank announcements should therefore be interpreted with caution because they partially reflect parity movements and not only economic information.

Swiss National Bank
The Swiss National Bank conducts the country’s monetary policy as an independent central bank. It is obliged by the Constitution and by statute to act in accordance with the interests of the country as a whole. Its primary goal is to ensure price stability, while taking due account of economic developments. In so doing, it creates an appropriate environment for economic growth.

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