This study examines for three countries, that is the US, the UK and Switzerland, whether interest rate and credit risks are priced in the equity excess returns of their respective stock market indexes over the period January 1983 - respectively February 1993 and January 1988 - to April 1999, by estimating both two-factor and three-factor versions of Merton's ICAPM. The degree of dependence and causality between the domestic credit risk premia in order to assess the potential benefits of international diversification is also studied. Only weak evidence of systematic interest rate risk pricing is found, while under systematic credit risk can be concluded that market and credit risks are both positively and significantly priced. Finally the authors fail to observe strong relationships between the credit risk premia estimated on the three stock markets.