We examine a strategic-choice handicap model in which males send costly signals to advertise their quality to females. Females are concerned with the net viability of the male with whom they mate, where net viability is a function of the male's quality and signal. We identify circumstances in...

We present a model of learning in which agents learn from errors. If an action turns out to be an error, the agent rejects not only that action but also neighboring actions. We find that, keepng memory of his errors, under mild assumptions an acceptable solution is asymptotically reached....

The article summarizes the main points discussed at the seminar on The Nobel Memorial Prize Laureates 2002, held by the Czech Economic Association (CEA) in March 2002. There were two main speakers at the seminar: The first was Michal Skoøepa (Czech National Bank and Charles University), who...