This paper analyses the effect of piracy on innovation in the presence of R&D competition with technological and market uncertainty. With a single innovating firm facing technological uncertainty, piracy unambiguously retards innovation. However, with R&D competition where firms face market and...

In the case of input demand systems based on specification of technology by a Translog cost function, it is common to estimate either a system of share equations alone, or to supplement them by the cost function. By adding up, one of the share equations is excluded. In this paper it is argued...

We derive general formulae for the asymptotic distribution of the LIML estimator for the coefficients of both endogenous and exogenous variables in a partially identified linear structural equation. We extend previous results of Phillips (1989) and Choi and Phillips (1992) where the focus was on...