ZMIANY STRUKTURY OBCIĄŻEŃ PODATKOWYCH W PAŃSTWACH UNII EUROPEJSKIEJ W OKRESIE KRYZYSU A PRZEWIDYWANIA TEORII KONKURENCJI PODATKOWEJ

The article verifies the impact of economic variables on the tax burden in the European Union countries, which took place in period 2006-2011. We concentrate especially on compatibility with the predictions of some theories of international taxation. The confirmation of selected predictions should allow for the better understanding of the mechanisms behind the observed tax adjustments and to construct new theoretical models better fitted to the observations. We especially test for example: the hypothesis of tax competition in traditional form and with agglomeration effects, compensation hypothesis, hypothesis of tax export and fiscal solvency hypothesis. The main results confirm the impact of the crisis on the increase of the capital and labor tax burden. However, this effect has not led to the significant growth of the tax revenues. It stipulates that the situation of each country is more relevant for the explanations of the results than the weakening or strengthening of tax competition during the crisis.