We endogenize the market risk (at given technical risk) in firms’ R&D decisions by introducing stochastic R&D in the Hotelling model. It is shown that if the technical risk is sufficiently high, the market risk remains low even if firms pursue similar projects. This leads firms to focus on the...

We analyze determinants of regional industry mix and focus especially on the influence of labor market characteristics. By combining a labor market pooling argument with an argument involving the cost of switching a worker from one firm to another, we show that in the presence of product market...