Before revision:  The fixed-point results are quite general and are also applied to models where the DM learns about a hidden state and Rust-type dynamic discrete choice models . A perturbation result is derived which provides a necessary and sufficient condition for consistent estimation of continuation values and the worst-case model.
After revision:  The fixed-point results are quite general and are also applied to models where the DM learns about a hidden state and Rust-type dynamic discrete choice models are also discussed. For estimation, a perturbation result is derived which provides a necessary and sufficient condition for consistent estimation of continuation values and the worst-case model.