We investigate empirically how sellers react to changes in the population of their consumers, identifying the effects of demand composition and demand size with limited information on costs. We show how pharmacists in Italy selectively increase the price of some products when they observe in...

Policies to promote marriage are controversial, and it is unclear whether they are successful. To analyze such policies, it is essential to distinguish between a marriage that is created by a marriage-promoting policy (marginal marriage) and a marriage that would have been formed even in the...

This paper documents that changes in assortative mating patterns over the last four decades along the dimensions of age, ethnicity and religion are not responsible for the increasing marital stability in Austria. Quite the contrary, without the rise in the age at marriage, divorce rates would be...