Fredrik Erixon and Matthias Bauer of the European Centre for International Political Economy (ECIPE) write that the Tufts analysis has such serious flaws "that its results should neither be regarded reliable nor realistic." They write that Tufts model is "by and large a demand-driven model that does not make efforts to capture the supply-side effects of trade, which are the effects that are proven to be the core positive effects of trade liberalisation. Equally problematic, the model is not designed to assess the effect on trade from trade agreements – in fact, the model is profoundly ill suited for such an exercise. No trade economist, regardless what school of thought he or she comes from, has ever used this model to make estimates of trade. The reason is simple: if a model cannot predict the effects on the flows and profile of trade as a consequence of trade liberalisation, it is of no use at all." They add, "In Capaldo’s analysis, structural change and the emergence of new industries do not play a role at all. Capaldo implicitly assumes that an economy with its labour and capital does not respond and adjust to new circumstances. New competition only leads to new unemployment. In addition, the impact of lower barriers on international commerce on product and process innovation is neglected. Finally, Capaldo does not account for the impact of competition on the cost of production and final consumer prices."