We study the relationship between innovation and horizontal differentiation in a continuous-time dynamic duopoly. At any instant firms compete in prices in a Hotelling game. They may be differentiated both in terms of product quality (for which consumers have homogeneous tastes) and product...

This paper studies the impact of income inequality on the level of innovative activities in a model where innovations result in quality improvements. The market for quality goods is characterized by a natural oligopoly with three types of consumers - rich, middle class and poor. In general, we...

We analyze firms' investment in product innovation when there are heterogeneous consumer switching costs in markets with an industry leader. We show that higher switching costs require a successful entrant to charge a higher price and increase investment in product innovation to remain...

We show that a two-part tariff licensing contract is always optimal to the insider patentee in spatial models irrespective of the size of the innovation or any pre-innovation cost asymmetries. The result provides a simple justification of the prevalence of two-part tariff licensing contracts in...

We consider the optimal licensing strategy of an insider patentee in a circular city of Salop’s model and in a linear city of Hotelling’s model when firms have asymmetric pre-innovation marginal costs of production and compete in prices. We completely characterize the optimal licensing...

We show that a two-part tariff licensing contract is always optimal to the insider patentee in spatial models irrespective of the size of the innovation or any pre-innovation cost asymmetries. The result provides a simple justification of the prevalence of two-part tariff licensing contracts in...

In this paper we study the impact of the income distribution on innovation through the demand for quality goods. For simplicity, we assume that there are two types of consumers, rich and poor. The income distribution is measured by the population share of the poor and the relative income of the...

This paper studies the impact of income inequality on the level of innovative activities in a model where innovations result in quality improvements. The market for quality goods is characterized by a natural oligopoly with three types of consumers - rich, middle class and poor. In general, we...