In this paper we consider the estimation of a panel data binary response model with a weak restriction imposed on the individual specific effects. Our estimator is root-N-consistent and asymptotically normal under reasonable regularity conditions. Furthermore, we allow the error terms to be heteroscedastic over time. The proposed estimator has a closed form expression and thus is very easy to compute. Simulations and the empirical illustration demonstrate the usefulness of our proposed estimator.
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