Our study of 602 European banks over 1996–2002 investigates how the banks’ expansion into fee-based services has affected their interest margins and loan pricing. We find that higher income share from commissions and fees is associated with lower margins and loan spreads. The higher the commission and fee income share, moreover, the weaker the link between bank loan spreads and loan risk. The latter result is consistent with the conjecture that banks price (or misprice) loans to increase sales of other services. That loss leader (or cross selling) hypothesis has implications for bank regulation and competition with (non-bank) lenders.

The purpose of this paper is to investigate the relationship between bank risk and product diversification in the changing structure of the European banking industry. Based on a broad set of European banks for the period 1996–2002, our study first shows that banks expanding into non-interest income activities present higher risk and higher insolvency risk than banks which mainly supply loans. However, considering size effects and splitting non-interest activities into both trading activities and commission and fee activities we show that the positive link with risk is mostly accurate for small banks and essentially driven by commission and fee activities. A higher share of trading activities is never associated with higher risk and for small banks it implies, in some cases, lower asset and default risks.