SEI conference 16-17 July 2007 What have we learned from modelling European economic integration? Alasdair Smith University of Sussex alasdair@sussex.ac.uk What have we learned from modelling European economic integration? •1987 paper on Completing the internal market •Subsequent developments •The uses and abuses of modelling 1987 EER Smith-Venables paper • Partial equilibrium • Imperfect competition, with product differentiation and scale economies • Options on entry/exit and market integration • Calibrated to data on industry structures and scale economies • Large but defensible estimates of effects of SEM, especially with market integration Subsequent work 1. The European car market 2. General equilibrium 3. EU-CEEC trade 4. The effects of external trade policy 5. Ex-post modelling The uses and abuses of modelling • Is it just theory with numbers? • Model dependence of results – eg. X-inefficiency? • Discipline – imposing some consistency • Sophisticated arithmetic – eg. GE results • Getting theory aligned with economic arithmetic