What explains apparent price rigidity over the business cycle? This paper shows that price fluctuations may be hidden in prices of add ons. Using 10 years of extended warranty data from a nationwide Canadian retailer, we show that extended warranty prices respond strongly to changes in local...

This paper shows how price leadership bans imposed, as part of the European Commission's State aid control, on all main mortgage providers but the largest bank shifted the Dutch mortgage market from a competitive to a collusive price leadership equilibrium. In May 2009, mortgage rates in The...