摘要：The purpose of the paper is to analyze firms decisions about using profits as a financing source. In particular, we are interested in the consequence of changes of tax incentives on that behavior, Following a revision of theoretical aspects of saving behavior of firms, we analyze how tax variables affect internal and/or external financing decisions of firms. From empirical estimations, we can elude that the theory of capitalization of taxes, which states that the cost of capital is the transmission mechanism of tax changes, is not verified during the analyzed period, Indeed, the cost of capital, that aflects negatively the reinvestment profit rate, does not appear to be a significant variable of the model. On the other hand, from the traditional theory perspective, in which the dividend policy follows a long run objective, we conclude that profits together with tax incentives Oil dividend payments, in particular during profit periods, are relevant in financing decisions of firms.
