Welfare and Competition tool (WELCOM), to estimate with minimum data requirements the direct distributional effects of market … telecommunications and corn products. The results show that increasing competition from four to 12 firms in the mobile telecommunications …

economics. Rather than aiming to be a full-blown model of real-world competitive markets, the perfect competition model isolates …The model of perfect competition is one of the most famous, most important, and most misunderstood concepts in … only feature of market competition, but it plays a central role regarding to its virtues, and understanding the working …

This paper develops a theory of oligopoly and markups in general equilibrium. Firms compete in a network of product … extent of competition from substitute products. I estimate that, in 2019, public corporations produced consumer surplus in …

contribution is two-fold. First, we expand the theory of granularity to encompass the Bertrand competition frequently used in …