This paper presents a model in which homogeneous rational agents choose between two competing technologies. Agents observe a private signal and a sample of other agents’ previous choices. The signal has both an idiosyncratic and an aggregate component of uncertainty. I derive the optimal...

This paper analyzes preferences in the presence of ambiguity that are rational in the sense of satisfying the classical ordering condition as well as monotonicity. Under technical conditions that are natural in an Anscombe-Aumann environment, we show that even for such general preference model...

This article studies the dynamics and persistence of poverty in Italy during the nineties (1994-2001). Two definitions of poverty are analyzed: income poverty and a multidimensional index of life-style deprivation. For both definitions, poverty exit and re-entry rates are estimated and combined...

Empirical evidence suggests that goods are highly heterogeneous with respect to the degree of price rigidity. We develop a DSGE model featuring heterogeneous nominal rigidities across two sectors to study the equilibrium determinacy and stability under adaptive learning for interest rate rules...

The paper develops a simple two-period model relating child labor, child school attendance and child health care access in LDCs showing that child labor is positively correlated to access to health care services. In fact, higher medical expenditure generates better health and, therefore, higher...

In this paper 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 changes in inflation. We...

We study the interplay of probabilistic sophistication, second order stochastic dominance, and uncertainty aversion, three fundamental notions in choice under uncertainty. In particular, our main result, Theorem 2, characterizes uncertainty averse preferences that satisfy second order stochastic...

Both conventional wisdom and leading academic research view pork barrel spending as antithetical to responsible policymaking in times of crisis. In this paper we present an alternative view. When agents are heterogeneous in their ideology and in their information about the economic situation,...

This paper deals with a constrained investment problem for a defined contribution (DC) pension fund where retirees are allowed to defer the purchase of the annuity at some future time after retirement. This problem has already been treated in the unconstrained case in a number of papers. The aim...

This paper formalizes the pervasive phenomenon of the self-serving bias within the framework of reference dependent preferences. This formulation allows the stating of a simple rule to assess the existence of the bias at the aggregate level as well as a procedure that identifies the minimum...