This paper analyzes the distortions of (health) insurers' benefit levels due to adverse selection if individuals' responsiveness to differences in contracts is heterogeneous. Within a discrete choice model with two risk types and imperfect competition the following results are shown: In the...

Research on bargaining power in vertical relationships is scarce. It remains particularly unclear which factors drive bargaining power between the two negotiating parties in a vertical structure. We use a demand model where the consumer demand determines the total pie of industry profits....

We propose a demand model where consumers simultaneously choose a few different goodsfrom a large menu of available goods, and choose how much to consume of each good. Themodel nests multinomial discrete choice and continuous demand systems as special cases.Goods can be substitutes or...