We critically review the emerging literature in Organizational and Personnel Economics concerning the role of managers and management practices. Our focus is on the middle managers who populate the hierarchies between top executives and front-line employees. We are especially concerned with...

Beginning in 2008, we ran a randomized controlled trial that changed management practices in a set of Indian weaving firms (Bloom et al. 2013). In 2017 we revisited the plants and found three main results. First, while about half of the management practices adopted in the original experimental...