In this paper, we introduce adoption costs in a canonical vintage capital model. Adoption costs take the form of a direct loss in production during a fixed period of time. We explicitly characterize the optimal machine replacement policy as a function of the adoption period. Using an explicit...

This paper proposes a sequential macroeconomic model to study investment complementarities in the presence of un(der)employment. It also incorporates some assumptions generally used in Keynesian economics like animal spirits, cash-in-advance constraints and irreversibility of investment...

This paper studies how communication amongst agents influences the equilibrium of a financial economy. We set up a standard overlapping generations (OLG) model with assets, while allowing for heterogeneous beliefs. The paper explicitly describes how communication generates correlation of...

We investigate the effect of financial integration on the degree of international business cycle synchronization. For identfication, we use a confidential database on banks' bilateral exposure over the past three decades and employ a novel bilateral country-pair panel instrumental vari- ables...

Existing models of equilibrium unemployment with endogenous labor market participation are complex, generate procyclical unemployment rates, and suffer from the usual defects of matching models. We embed endogenous participation in a simple, tractable job market matching model, show analytically...

We analyze the effects of large war episodes (world wars) on the macroeconomic dynamics of four advanced countries (France, Germany, the UK and the U.S.) using a structural small open economy model estimated with Bayesian techniques. Our dataset is taken from Piketty and Zucman (2014) and goes...

The objective of this doctoral thesis is to put forth the role of psychology in the fluctuations of production, redistribution and inequalities. Our work is centered on two axes : i) the importance of psychology with regards to inequalities in determining individual beliefs about the role of...

During the economic recovery observed in Argentina since 2003 has occurred an evident reduction of unemployment in general and youth unemployment in particular. The unemployment rate for all ages fell from 15% in 2003 to 7% in 2011. Meanwhile, the unemployment rate of young people between 18 to...

This paper investigates the role of the RBC (Real Business Cycle) model with investment-specific technology shocks in explaining business cycle fluctuations in Brazil. I consider the role of transitory and permanent components of neutral and investment-specific technology shocks. I fit the model...

Cycles dragged by switches in preferences are obtained in a stochastic model economy. Both the supply and the demand side, each one of them composed by infinite countable interacting agents, are modelled as dynamic probabilistic processes. Interactions happen at three levels. At a local one,...