The familiar ’five-star’ ratings and reviews system makes it easy for consumers to use product evaluations across competing platforms to choose the product or service that is most likely to match their preferences. However, the ability to easily shop around for ratings and reviews raises a...

In this paper we examine the causal impact of competition on management quality. We analyze the hospital sector where geographic proximity is a key determinant of competition, and English public hospitals where political competition can be used to construct instrumental variables for market...

In this paper we examine the causal impact of competition on management quality. We analyze the hospital sector where geographic proximity is a key determinant of competition, and English public hospitals where political competition can be used to construct instrumental variables for market...