The main methods for evaluating the function of imports: Theoretical review

Object of study of this paper is to present a review of the main methods used to assess the demand for imports. The attention is focused on the application of the models of Vector Error Correction in order to assess the demand for imports. Firstly we present the theoretical derivation of these models and then submitted applications in different studies. The attention is concentrated on the regression models, gravity model and VAR (Vector Autoregressive) models and VECM (vector error correction model) models, making a comparative analysis of the specifications and restrictions that each model offers. The chapter ends with the conclusions and providing relevant suggestions