Building gravity models of international trade using the Wolfram Mathematica package

Abstract

This article is devoted to building gravity models of international trade and studying of their practical opportunities. During the research were built three models: Belarus – Russia, Belarus – Ukraine and Belarus – China. This models show interdependence of trade between Republic of Belarus and its main trade partners from GDP and population. A conclusion was made that foreign trade turnover of the above-named couples of countries really depends on changes in GDP and population, dependence degree in three models is different and changes from an indicator to an indicator. All calculations were made in Wolfram Mathematica system. It is the package of symbolical mathematics with the highest speed and accuracy