This paper models interaction between groups of agents by means of a graph where each node represents a group of agents and an arc represents bilateral interaction. It departs from the standard Katz-Shapiro framework by assuming that network benefits are restricted only amongst groups of linked...

This paper models interaction between groups of agents by means of a graph where each node represents a group of agents and an arc represents bilateral interaction. It departs from the standard Katz-Shapiro framework by assuming that network benefits are restricted only amongst groups of linked...

In most developing countries, there is an active debate on the changing role of the government in mediating market outcomes. In grain markets in India, this debate assumes a renewed significance, given the excessive accumulation of food stocks in recent years. For example, the wisdom of...

Many small wholesale grain markets in India are characterized by large numbers of sellers, and a relatively small number of buyers, thereby lending the price formation process open to manipulation through collusion. Government intervention limits the extent of such manipulation by instituting...