Please see the CEP #ElectionEconomics report(Paper 1)and the Executive Summary (Paper 2) that cover all the election 2015 briefings, discussing the research evidence on 15 of the UK's key policy battlegrounds: immigration, austerity, real wages and living standards, productivity and business,...

A fundamental question in monopolistic competition theory is whether the market allocates resources efficiently. This paper generalizes the Spence-Dixit-Stiglitz framework to heterogeneous firms, addressing when the market provides optimal quantities, variety and productivity. Under constant...