techniques - we document a range of trends in recent autocracies that fit the theory: a decline in violence, efforts to conceal …

We develop a theory that explains how and when privacy can increase welfare. Without privacy, some individuals …

We propose a rational model to explain time-series momentum. The key ingredient is word-of-mouth communication, which … we introduce in a noisy rational expectations framework. Word-of-mouth communication accelerates information revelation … significant proportion of investors trade on it. We also show that word-of-mouth communication spreads rumors and generates price …