Dinâmica da taxa de câmbio: uma interpretação pós-keynesiana da experiência brasileira no período 1999 a 2012

Abstract

The objective of this study is to use the post-Keynesian outline to explain the politics of Brazilian exchange regime, and the behavior of the real\'s exchange rate in relation to the American dollar from January 1999 to December 2012. In the face of the importance of exchange rates as one of the most important relative prices to an accelerating global economy, the study behind the causes of their behavior is a much-discussed subject in economic literature. After the collapse of the Bretton Woods accord, traditional theoretic models were developed to explain the high volatility of currency exchanges. Nevertheless, the lack of consensus in these models allowed the Keynesian theory to be incorporated into the new global reality, which is characterized by both a greater integration of markets and capital volatility. The Keynesian theory has in its foundation, a mental model and the diagram Z-D. Both of these are supported by variables such as the adoption of norms and conventions, bandwagon effects, and social and psychological factors as inputs into the processes of building up expectations and decision-making. The result was obtained, once the post-Keynesian model showed itself to be plausible in the explanation of the foreign exchange dynamics for the period under consideration.