Overall, I do an analysis of the structural severity at the product and sector level to answer the first two questions. With regard to the second question, I am also conducting a political exercise that uses the sectoral estimates of the structural gravity equation in the first phase to harmonize the hypothetical effect of the United Kingdom, which is in the process of concluding a deep agreement with its major trading partners. To answer the third question, I use customs data at the transaction level on the world of British exporting companies and I use an econometric strategy that exploits variations in narrow trade agreements during the «magic» of disatriated export, both with companies in a given product market. Here an export spell refers to the continuous number of years during which the export of a given company to the product market is observed in the data. In the second year of my PhD, I joined the International Directorate of the Bank of England as a Research Economist. My role is a mixture of research and political work related to international trade, emphasizing the effects of different types of economic integration. These differ from the degree of unification of economic policies, the highest being the completed economic integration of states, which would most likely also involve political integration. The dynamic part of the theory of international economic integration, such as the dynamics of trade creation and the effects of trade diversion, the pareto efficiency of factors (work, capital) and added value, was mathematically introduced by Ravshanbek Dalimov. It is an interdisciplinary approach to the hithert static theory of international economic integration, which has highlighted the impact of economic integration and has allowed the results of non-linear sciences to be applied to the dynamics of international economic integration. Despite the benefits, economic integration has costs.
These can be divided into two categories: a qualitative finding of the dynamic method is the similarity of a policy of coherence of economic integration and a mixture of fluids previously separated in a basket: they end up getting a color and becoming a fluid. The economic space (tax, insurance and financial policy, tariffs, etc.) is finally becoming the same with the phases of economic integration. In the economy, the word integration was used for the first time within the industrial organization to refer to corporate mergers through economic agreements, agreements, concerns, trusts and mergers – horizontal integration that refers to combinations of competitors, vertical integration in combination of suppliers with customers. In the current sense of the combination of separate economies in major economic regions, the use of the term integration dates back to the 1930s and 1940s.  Fritz Machlup credits Eli Heckscher, Herbert Gaedicke and Gert von Eyern with the first users of the concept of economic integration in the current sense. According to Machlup, this use first appeared in 1935 in the English translation of Hecksher Mercantilism`s book and independently of each other in Gaedickes and Eyern`s two-volume study Economic Integration of Europe: a study on the external trade interdependence of the European states of 1933.  The training of the Economic Integration Agreement (EIA) affects different trade margins (goods). The simple conclusion of the results is that the accumulated knowledge of the exact and scientific sciences (physics, biodynamics and chemical kinetics) can be used to analyze and predict economic dynamism.