Before revision:  We provide new econometric results showing identification of a large class of models that includes our household model. We cover fixed-T panel models  where the response variable is an unknown monotonic function of a linear latent variable with fixed effects, regressors, and a nonparametric error term .
After revision:  We provide new econometric results showing identification of a large class of fixed-T panel models where the response variable is an unknown monotonic function of a linear latent variable with fixed effects, regressors, and a nonparametric error term .