country's development, we present a North-South variety model which allows for original southern R&D activity and imitation …

expected time an innovation is imitated, and patent width, i.e. the innovator's profit after a successful imitation relative to …

through competition policy. The main findings are the following. A small imitation subsidy slows down growth. In the first …-best optimum collusion is socially optimal, but when the government cannot discriminate between innovation and imitation, it should …

with a continuum of countries. Countries are different in research productivity. Innovation, imitation and the relative …

This paper analyzes the growth and welfare effects of competition in an endogenously-growing economy with imitation and … non-diversifiable risk. The main findings are as follows. There is no imitation without positive profits during innovation …, the economy grows faster than when they are of medium size. If the government subsidizes innovation and imitation …