Do antitrust laws influence corporate valuations? We evaluate the relationship between firm value and laws limiting firms from engaging in anticompetitive agreements, abusing dominant positions, and conducting M&As that restrict competition. Using firm-level data from 99 countries over the...

Do antitrust laws influence corporate valuations? We evaluate the relationship between firm value and laws limiting firms from engaging in anticompetitive agreements, abusing dominant positions, and conducting M&As that restrict competition. Using firm-level data from 99 countries over the...

Noting that many economic variables display occasional shifts in their second order moments, we investigate the performance of homogenous panel unit root tests in the presence of permanent volatility shifts. It is shown that in this case, panel unit root tests derived under time invariant...

We introduce a new, factor based bootstrap approach which is robust under heteroskedastic error terms for inference in functional coefficient models. Modeling the functional coefficient parametrically, the bootstrap approximation of an F statistic is shown to hold asymptotically. In simulation...