We study the performance of the euro/Swiss franc exchange rate in the extraordinary period from September 6, 2011 and January 15, 2015 when the Swiss National Bank enforced a minimum exchange rate of 1.20 Swiss francs per euro. Within the general framework built on geometric Brownian motions...

To counter the sharp appreciation of the Swiss franc that set in in the wake of the European sovereign debt crisis, on September 6, 2011, the Swiss National Bank announced to enforce a minimum EUR/CHF exchange rate of CHF 1.20. We find that the simple, though elegant model for the exchange rate...