We measure the impact of search costs on farmers' and traders' transaction prices in Mozambique by investigating to what extent the introduction of mobile phones has affected the margin between recorded maize producer and retail market prices, and by exploring if producers or traders benefit...

We develop a model linking stock ownership and returns to the distribution of private information and quality of public information. Supporting the model, we find that the firm's information environment affects investors' propensity to hold and trade its stocks, but its effects hinge on...