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....

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...

This paper studies the equilibrium determinacy properties of a simple interest rate rule in a small open economy subject to currency substitution (i.e., the use of a foreign currency for domestic transactions) and risk premia on foreign borrowing. It shows that if currencies are substitute in...

We embed Max Weber (1958)'s spirit of capitalism (SOC) into an otherwise standard Lucas' tree asset pricing model, by assuming that economic agents care about their social status and that the latter is related to financial wealth. We show that, absent uncertainty, for a wide range of values for...

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...

We present a heterogeneous agents New-Keynesian model subject to a cost channel of monetary policy transmission. Constant turnover between long-time traders and newcomers in market activities, combined with restricted trading opportunities, introduces a feedback from the stock market to real...

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...