Replaced with revised version of paper 02/27/08.

The Fisher scoring method is widely used for likelihood maximization, but its application can be difficult in situations where the expected information matrix is not available in closed form or when parameters have constraints. In this paper, we describe an interpolation family that generalizes...

We analyze in this paper the growth and welfare consequences arising from the lack of auditing commitment in a credit market with costly state verification. Specifically, two endogenous growth models, of which one allows lenders to commit to costly auditing strategies to identify borrowers'...

We study the endogenous relationship between health care, life expectancy and output in a neoclassical growth model. Although health care directly diverts resources away from goods production, it prolongs life expectancy, which in turn leads to higher savings and, hence, capital formation...

We study an overlapping generations model where the probability that money can lose its value is an endogenous function of the level of aggregate real money balances. The economy can display multiple stationary equilibria where the aggregate bubble on money is stochastic and the level of...

This paper reexamines the issue of optimal capital income taxation in an endogenous growth model with overlapping generations. By assuming costly state verification for capital producing projects, we show that the presence of the information asymmetry creates inefficiency in the credit market by...