This dissertation consists of three papers which are aimed at extending consumer search theory by relaxing some of the informational assumptions and by inquiring into the incentives of firms to share information. The first paper analyses firm's incentives to share information in search markets....

The degree of competition and level of price transmission in food markets have important effects on the welfare level of consumers and producers. Thus, substantial attention has been paid to the analysis of price transmission in food markets. Traditionally, price transmission analyses have...

This study was prepared by Andreas Kuhlmann, while he was working with the Ifo Institute for Economic Research. It was completed in September 2006 and was accepted as a Ph.D. thesis by the Economics Department of the University of Munich. The subject of this study is the analysis of network...