Using euro conversion as the trigger, we examine what drives volume and spread changes when stock exchanges compete. Results show average trading costs on European exchanges decrease almost 9%, and turnover increases over 30%. Trading costs decline or remain unchanged on all exchanges, but volume deteriorates in some markets and improves in others. Frankfurt, Paris, London, and Milan are winners, while Madrid and Brussels lose volume. We examine the role of the spread-volume relation, firm characteristics, exchange trading rules, and country-level factors in determining these outcomes. Results suggest that euro conversion prompted competition by increasing transparency in market prices.

We find that Federal Open Market Committee (FOMC) actions (especially rate cuts) narrowed corporate credit spreads during the pre-crisis period of 2002–07. During the 2008 crisis period, we find that both conventional cuts and quantitative easing decreased spreads. But FOMC inactions caused significant widening of spreads. The effects are especially large for speculative-grade and short-maturity bonds. Overall, the policy uncertainty during the crisis and macroeconomic theories during the pre-crisis period help to explain why FOMC announcements impacted credit spreads. The Fed’s actions targeted at promoting growth and/or providing systemic liquidity were especially noted by the corporate bond market.