Hottman, Colin; Redding, Stephen J.; Weinstein, David E. - 2015
We develop and structurally estimate a model of heterogeneous multiproduct firms that can be used to decompose the firm … variation in firm sales. We show that the imperfect substitutability of products within firms, and the fact that larger firms … on prices and sales, we find that variation in firm appeal and product scope explains at least four fifths of the …