When an improvable durable good (such as packaged software) saturates the market, the seller could be tempted to release new versions too frequently, hurting her profit. A novel contractual device, which we term as a Free New Version Rights warranty (Free NVR warranty), can help the seller...

Existing models of R&D are not easily reconciled with four observable aspects of R&D: initial technologies ('ideas') need to be developed further, only a minority of initial ideas is successfully brought to the market, production and process innovations take place simultaneously (whereby,...

Destructive Creation is the deliberate introduction of new, perhaps improved generations of durable goods that destroy, directly or indirectly, the usage value of units previously sold inducing consumers to repeat their purchase. This paper discusses this practice by a single seller in an...

"Destructive Creation" is the deliberate introduction of new, perhaps improved generations of durable goods that destroy, directly or indirectly, the usage value of units previously sold inducing consumers to repeat their purchase. This paper discusses this practice by a single seller in an...

This paper studies a model of the distribution of income under bounded needs. Utility derived from any given good reaches a bliss point at a finite consumption level of that good. On the other hand, introducing new varieties always increases utility. It is assumed that each variety is owned by a...

This paper examines the decision to introduce new products by durable goods producers. Conventional wisdom suggests durable goods producers introduce new products to kill-off used products. However, used units may not compete with new units if initial price can capture the present value of all...

The modern law of induced patent infringement contradicts the Patent Act and violates the First Amendment. As currently applied, the law unconstitutionally restricts speech, discourages the entry of generic drugs, and helps keep medicine prices high. Under current doctrine, a generic drugmaker...

I investigate a simple model of advance-purchase contracts as a mode of financing costly projects. An entrepreneur has to meet some capital requirement in order to start production and sell the related good to a limited number of potential buyers who are privately informed about their...