Estimating Dynamic Models with Aggregate Shocks And an Application to Mortgage Default in Colombia
We estimate a dynamic model of mortgage default for a cohort of Colombian debtors between 1997 and 2004. We use the estimated model to study the efects on default of a class of policies that afected the evolution of mortgage balances in Colombia during the 1990's. We propose a framework for estimating dynamic behavioral models accounting for the presence of unobserved state variables that are correlated across individuals and across time periods. We extend the standard literature on the structural estimation of dynamic models by incorporating an unobserved common correlated shock that afects all individuals' static payofs and the dynamic continuation payofs associated with diferent decisions. Given a standard parametric specification the dynamic problem, we show that the aggregate shocks are identifed from the variation in the observed aggregate behavior. The shocks and their transition are separately identifed, provided there is enough cross-sectional variation of the observed states
|Date of creation:||22 Jun 2010|
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