Um survey sobre as fricções financeiras em modelos DSGE

The objective of this work is to conduct a survey of financial friction modeling in stochastic dynamic general equilibrium (DSGE) models. For, given the global financial crisis of 2008, the researchers realized that the models proposed until that moment were not able to present an adequate answer to the origins and evolution of that crisis, and the reason would be in the fact that this modeling does not include interaction of the financial market with the rest of the economy. So in the last decade much academic effort has been used to analyze the conduct of central bank monetary policies in an environment with financial frictions and the role of macroprudential measures. In this way, it can be concluded that financial frictions explain a large part of the changes in the product against other macroeconomic variables, causing changes in the financial conditions resulting from the increase or decrease in credit spreads to influence the equilibrium relation between the basic interest rate and aggregate demand, as well as the relationship between economic activity and inflation. Key-Words: Macroeconomics; DSGE models; Financial frictions. ÁREA: 6Macroeconomia e Finanças