The main contribution of this work consist on studying sales behaviour and their relationship with local market conditions like labor market indicators through a time series principal component analysis. We study the correlation structure of a large database on prices and found that all product...

We offer a new mechanism for prices to deviate from the Law of One Price. If stores differ in the varieties offered in a given product category, prices diverge more often regardless of distance. A simple extension to the Hotelling (1929) explains this result. To have one difference in variety in...

We assess price dispersion in retail markets and its sources over time. Using a product-detailed price database, we document a consistent divergence of prices over time in retail markets in Uruguay: price dispersion increased by 3.1% in fifteen years. Next, we analyze microeconomic and...