We design a new specification of Okun's model that takes the following features into account: estimation of the relation in first differences, the possible lagged effect of GDP dynamics on unemployment changes, the persistence of unemployment rate dynamics, the possible different values of Okun...

We show how the dynamic logit model for binary panel data may be approximated by a quadratic exponential model. Under the approximating model, simple sufficient statistics exist for the subject-specific parameters introduced to capture the unobserved heterogeneity between subjects. The latter...