This chapter addresses the history, use and significance of the term transaction costs. Few words in the economic language have been more abused or fought over and this is shown to result from the emergence of two distinct definitions and uses. The ‘Neoclassical’ definition rests on the...

This paper analyses optimal contracts in a principal-agent model where the agent is intrinsically motivated at the outset and there is an endogenous relationship between the structure of incentive payments and intrinsic motivation (crowding effects). The analysis shows that crowding effects have...

Patents lead to ex-post dead-weight losses arising from a non-competitive market structure for the invention. Many have argued that introducing independent invention as a defense (IID) to patent infringement can increase social welfare by decreasing such dead-weight losses at the price of a...

Governments throughout the developed world worry incessantly about the implications of sophisticated tax planning for their tax revenues. And yet the same governments routinely stop short of doing all that they can legally do to combat tax avoidance. Why? One response is that a thick conception...

This paper proposes a reduced form model of dynamic duopoly in the context of heterogeneous innovations framework. Two agents invest into product and process innovations simultaneously. Every newly introduced product has its own dimension of process-improving innovations and there is a continuum...

We consider nonparametric identification in models of differentiated products markets, using only market level observables. On the demand side we consider a nonparametric random utility model nesting random coefficients discrete choice models widely used in applied work. We allow for...

How can firms profitably give away free products? This paper provides a novel answer and articulates tradeoffs in a space of information product design. We introduce a formal model of two-sided network externalities based in textbook economics - a mix of Katz & Shapiro network effects, price...

The recent explosion of attempts to form B2B exchanges and the large failure rate of these attempts raise questions about when and why B2B exchange formation succeeds. Our model provides a theory of B2B exchange formation by investigating conditions under which B2B exchanges attract enough...

New Internet-based technologies appear to threaten the ability of copyright owners to collect revenues for their intellectual creations, as epitomized by the recent public trials and tribulations experienced by Napster. As a response, new legislation against pirating and new technologies to...