The analysis of mergers in industries with differentiated products has traditionally focused its attention on postmerger price changes, ignoring the effect of a new competitive landscape on the characteristics of the products firms choose to offer. This paper proposes a new analysis, which...

Models of consumer behavior play a key role in modern empirical Industrial Organization. In this paper, I survey some of the models used in this literature. In particular, I discuss two commonly used demand systems: multi-stage budgeting approaches and discrete choice models. I motivate their...