This paper studies the competitive role of list prices. We argue that such prices are often more salient than actual retail prices, so consumers' purchase decisions may be influenced by them. Two firms compete by setting prices in a homogeneous product market. They first set a list price that...

We develop a method to screen for local cartels. We first test whether there is statistical evidence of clustering of outlets that score high on some characteristic that is consistent with collusive behavior. If so, we determine in a second step the most suspicious regions where further...