In Die Volkswirtschaft, Ernst Baltensperger and Peter Kugler summarize the history of the Swiss Franc since the mid 19th century:
- After 1973, the Swiss Franc has been strong. Swiss Franc yields have been lower than what uncovered interest parity would suggest.
- Before 1914, the Swiss Franc was weak in the sense that it enjoyed only limited credibility. In periods with fixed exchange rates, Swiss Franc yields typically exceeded yields in French Franc or Sterling.
- Throughout the 20th century, the Swiss Franc appreciated by more than what inflation differentials would suggest, potentially reflecting the Balassa-Samuelson effect.