Most retailers and scientists agree that supporting the buying decisions of individual customers or groups of customers with specific product recommendations holds great promise. Target-oriented promotional campaigns are more profitable in comparison to uniform methods of sale promotion such as...

This dissertation, in its most general context, is an investigation into themodeling of markets with imperfectly informed agents. In such markets, there willinvariably be incentives for informed agents to take advantage of informationasymmetries by disseminating the relevant information to...