We provide a survey of the main mechanisms of market selection used in economics. We gather them in three theoretical … paradigms (rational equilibrium, Simonesque and evolutionary), that we try to reconcile in terms of underlying laws of selection …, which is aimed at the replication of empirical patterns related to firm heterogeneity, rather than in the theory underlying …

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 …

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 …

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 …

Due to markup distortions, in international trade models with monopolistic competition and heterogeneous firms the …

This paper concerns the operation of competition in the presence of a high rate of innovation and increasing returns …. Given free competition there is likely to exist, in this case, a tendency towards what may be called "dynamic equilibrium … this investment yields only a normal return. Thus, competition, increasing returns and innovation may co-exist …