Three essays compose the dissertation. In the first essay, entitled "Interest Rate Rules, Endogenous Fluctuations and Chaotic Dynamics in Open Economies" (joint with Luis-Felipe Zanna), we study the consequences for global equilibrium determinacy of implementing active interest rate rules (i.e....

Using a closed economy model with a flexible-price good and a sticky-price good we study the conditions under which interest rate rules induce real determinacy and, more importantly, the MSV solution is learnable in the E-stability sense proposed by Evans and Honkapohja (2001). We show that...

We explore the stability properties of interest rate rules granting an explicit response to stock prices in a New-Keynesian DSGE model populated by Blanchard-Yaari non-Ricardian households. The constant turnover between long-time stock holders and asset-poor newcomers generates a financial...

We explore the stability properties of interest rate rules granting an explicit response to stock prices in a New-Keynesian DSGE model populated by Blanchard-Yaari non-Ricardian households. The constant turnover between long-time stock holders and asset-poor newcomers generates a financial...

We present an extensive analysis of the consequences for global equilibrium determinacy in flexible-price open economies of implementing active interest rate rules, i.e., monetary rules where the nominal interest rate responds more than proportionally to inflation. We show that conditions under...

This paper studies the equilibrium determinacy properties of a simple interest rate rule in a small open economy subject to endogenous dollarization (the use of a foreign currency in transactions) and international financial frictions (proxied by a feedback from external debt to sovereign risk...

We assess the conditions under which an interest rate rule granting an explicit response to stock prices can shield the economy against endogenous aggregate instability in the form of fluctuations driven by self-fulfilling beliefs, and fundamental equilibria that are not learnable in the...

We study optimal monetary policy in a New Keynesian-DSGE model where the combination of a credit channel and customer-market features in banking gives rise to counter-cyclical credit spreads. In our setting, monopolistically competitive banks set lending rates in a forward-looking fashion as...

Can active Taylor rules (i.e. monetary rules where the nominal interest rate responds more than proportionally to inflation) deliver global equilibrium uniqueness in small open economies? By studying the local and global dynamics of a standard small open economy we point out the misleading...