This paper uses newly available firm-level tax data to evaluate the market structure in South African manufacturing sectors in the period 2010-12. To describe the market structure we compute markups for South African manufacturing firms and concentration indexes for 4-digit manufacturing...

We develop a general equilibrium model of monopolistic competition with a traded and a non-traded sector. Using a broad class of homothetic preferences—that generate variable markups, display a simple behavior of their elasticity of substitution, and nest the ces as a limiting case—we show...

In this paper I provide a production theory-based framework for measuring markups of price over marginal coat, and the effects of cost and demand characteristics on these markups. Price to marginal coat ratios are measured for various Canadian manufacturing industries, and the impacts of...