Discussion Paper
Conversation, Information, and Herd Behavior
Experimental evidence shows that an important reason why people tend to imitate others, to exhibit “herd behavior” is that they assume that the others have information that justifies their actions. The information cascade models of Banerjee [1992] and Bikhchandani et al. [1992] are significant developments in showing some general equilibrium and welfare effects of such rational imitative behavior.