Firms competitive strategy in industrialised countries is increasingly based on activities such as the inventions of new processes and products, the improvements of the employees skill, the creation of a reputation for company's products. All these actions are intended to increase firms economic...

How is long run economic growth related to the endogenous diversity of knowledge? We formulate and study a microeconomic model of knowledge creation, through the interactions among a group of heterogeneous R & D workers, embedded in a growth model to address this question. In contrast with the...