This dissertation consists of three essays. In the first one (Chapter three), âGains and Losses from Household Formation,â I introduce a general equilibrium model, wherein a household may consist of more than one member, each with their own preferences and endowments. In these models at first,...

The Internet has a loosely hierarchical structure. At the top of the hierarchy are the backbones, also called Internet Access Providers (hereafter IAPs). The second layer of the hierarchy is comprised of Internet Service Providers (hereafter ISPs). At the bottom of the hierarchy are the end...

This dissertation consists of three essays on theoretical analysis of economic agents' decision making and incentives. Chapter 1 gives an outline of the subjects to be examined in the subsequent chapters and shows their conclusions in brief.Chapter 2 explores the decision problem of a...

Chapter 2 deals with a linear city model à la Hotelling where the two firms share linear transport costs with their customers. Mill pricing and uniform delivery pricing are special limiting cases. We characterize the conditions for the existence of a pure strategy equilibrium in the two-stage...