I provide a justification of intellectual property rights as a source of static efficiency gains in manufacturing, rather than dynamic benefits from greater innovation. I develop a property-rights model of a supply relationship with two dimensions of non-contractible investment. In equilibrium,...

Adopting a simplistic view of Coase (1960), most economic analyses of property rights disregard both the key advantage that legal property rights (that is, in rem rights) provide to rightholders in terms of enhanced enforcement, and the difficulties they pose to acquirers in terms of information...

This paper breaks new ground toward contractual and institutional innovation in models of homeownership, equity building, and mortgage enforcement. Inspired by recent developments in the affordable housing sector and in other types of public financing schemes, this paper suggests extending...

This chapter proposes two hypotheses on the publicity requirement and the limitations of possession to provide information for legal titling. It then tests these hypotheses by examining how legal systems deal with possession in movable and immovable property, and comparing actual and documentary...

I analyze the basis of the market economy in classical Rome, from the perspective of personal-versus-impersonal exchange and focusing on the role of the state in providing market-enabling institutions. I start by reviewing the central conflict in all exchanges between those holding and those...

Initiatives in electronic conveyancing and registration show the potential of new technologies to transform such systems, reducing costs and enhancing legal security. However, they also incur substantial risks of transferring costs and risks among registries, conveyancers and rightholders,...

We present a dynamic model where the accumulation of patents generates an increasing number of claims on sequential innovation. We compare innovation activity under three regimes patents,no-patents,andpatentpoolsand find that none of them can reach the first best. We find that the first best...

In a world where poor countries provide weak protection for intellectual property rights, market integration shifts technical change in favor of rich nations. Through this channel, free trade may amplify international income differences. At the same time, integration with countries where...

In a world where poor countries provide weak protection for intellectual property rights (IPRs), market integration shifts technical change in favor of rich nations. Through this channel, free trade may amplify international income differences. At the same time, integration with countries where...

We study optimal contracts in a simple model where employees are averse to inequity as modelled by Fehr and Schmidt (1999). A selfish employer can profitably exploit envy or guilt by offering contracts which create inequity off-equilibrium, i.e., when employees do not meet his demands. Such...