This thesis focuses on two distinct fields: the health care and the telecommunications sector. One the one hand, it deals with rebate contracts in the health care sector. The aim of this thesis is to analyze different forms and aspects of rebate contracts. We answer the question, are rebate...

Group Purchasing Organizations (GPOs) increasingly gain in importance with respect to the supply of pharmaceutical products and frequently use multiple or exclusive rebate contracts to exercise market power. Based on a Hotelling model of horizontal and vertical product differentiation, we...