This is an invited chapter for the forthcoming Volume 4 of the Handbook of Industrial Organization. We present empirical models of demand and supply in differentiated products industries with an emphasis on the key ideas arising from the recent applied literature. We start with a discussion of...

We study the nonparametric identification of distributions of utility functions in a multiple purchase setting with a finite number of consumers. Each utility function takes as arguments subsets or, alternatively, quantities of the multiple goods. We exploit mathematical insights from auction...

We develop a structural model of retail store choices for which household shopping plans and price beliefs are endogenously determined. In our model individual households make their store choices based on their expected basket costs, which are determined by their shopping plans and price...

We study the impact of the boycott on Japanese products, initiated in July 2019, in the Korean beer market. First, we find that sales of Japanese beer decreased by 75 percent on average during the 14-month boycott period in the data. Second, the decrease in Japanese beer sales during the boycott...

We study the impact of a boycott on one of the largest Korean dairy producers, triggered by the exposure of the firm's unethical management practices, on its product sales and prices. We find empirical evidence that the boycott had substantial and long lasting consequences. First, consumer...