In merger analysis and other antitrust settings, risk is often cited as a potential barrier to entry. But there is little consensus as to the kinds of risk that matter- systematic versus non-systematic and industry-wide versus firm-specific - and the mechanisms through which they affect entry. I...

In this paper we offer an analysis of the effects of uncertainty about future tax policy on irreversible investment. The main message of the paper is that investment is not much affected by the degree of tax policy uncertainty. This is true regardless of whether random tax changes are determined...