Abstract Despite the prevalence of private equity (PE) buyouts of private firms, little is known about how these transactions create value. We provide evidence that PE acquirers disproportionately target private firms with weak operating profitability and those that have growth potential but are highly levered and dependent on external financing. Target firms grow rapidly post-buyout, especially those undertaking add-on acquisitions, and profitability increases for both profitable and unprofitable targets. Our evidence suggests that PE acquirers create value by relaxing financing constraints for firms with strong investment opportunities and improving the performance of weak firms, while financial engineering plays a limited role.

This paper assesses different econometric approaches to working with count-based outcome variables and other outcomes with similar distributions, which are increasingly common in corporate finance applications. We demonstrate that the common practice of estimating linear regressions of the log of 1 plus the outcome produces estimates with no natural interpretation that can have the wrong sign in expectation. In contrast, a simple fixed-effects Poisson model produces consistent and reasonably efficient estimates under more general conditions than commonly assumed. We also show through replication of existing papers that economic conclusions can be highly sensitive to the regression model employed.