Information is a crucial ingredient in economic decision making. Yet measuring the extent of information exchange among individuals and its effect on economic outcomes is a difficult task. We use the universe of de-identified cellphone usage records from more than one million users in a Chinese...

Information is a crucial ingredient in economic decision making. Yet measuring the extent of information exchange among individuals and its effect on economic outcomes is a difficult task. We use the universe of de-identified cellphone usage records from more than one million users in a Chinese...

Social influence is an important driver of consumption behavior, but its effect on firm competition and pricing is understudied. While social influence may create an incentive for firms to reduce initial prices to attract a larger customer base, it can also result in firms charging higher prices...