This paper characterizes informed trade when speculators can acquire distinct signals of varying quality about an asset's value at different dates. The most reasonable characterization of private information about stocks is that while information is long-lived, new information will arrive over...

This paper looks at the incentives to free-ride on the information signaling of others and shows how this can lead to delay in productive activity and to a cascade of activity once information is signaled. In the presence of increasing returns to scale to a profitable project, an initial pioneer...

We study insider trading in a dynamic setting. Rational, but uninformed, traders choose between investment projects with different levels of insider trading Insider trading distorts investment toward assets with less private information. However, when investment is sufficiently information...

This paper details the implications of costly price adjustment for strategic firm interaction and the time series of prices. Such frictions introduce multiple equilibrium strategies which, in turn, help facilitate collusion among firms. Collusive opportunities improve as product differentiation...

Many political commentators diagnose an increasing polarization of the U.S. electorate into two opposing camps. However, in standard spatial voting models, changes in the political preference distribution are irrelevant as long as the position of the median voter does not change. We show that...

We argue that competition between dealers in a classic dealer market is intertemporal: A trader identifies a particular dealer and negotiates a final price with only the intertemporal threat to switch dealers imposing pricing discipline on the dealer. In this kind of market structure, we show...

This paper explains why a software manufacturer may permit limited piracy of its software. Piracy can be viewed as a form of price discrimination in which the manufacturer sells some of the software at a price of zero. In the presence of significant network externalities for the software, it may...