), there will be excessive entry into a Cournot oligopoly for a homogeneous commodity. However, input markets are often …

Using a Cournot oligopoly model with an endogenous number of firms and evasion of indirect taxes, this paper shows that … more intense competition may have the negative side-effect of eroding tax revenues by increasing tax evasion. This will be … weakly concave or convex and inelastic. The desirable result of more competition, less evasion and higher tax revenues will …