Ramalho, Esmeralda A.Ramalho, Joaquim J. S.2023-11-062023-11-062017Ramalho, Esmeralda A. and Joaquim J. S. Ramalho .(2017). “Moment-based estimation of nonlinear regression models with boundary outcomes and endogeneity, with applications to nonnegative and fractional responses”. Econometric Reviews, Vol. 36, No. 4: 397–420. (Search PDF in 2023)http://hdl.handle.net/10400.5/29303In this article, we suggest simple moment-based estimators to deal with unobserved heterogeneity in a special class of nonlinear regression models that includes as main particular cases exponential models for nonnegative responses and logit and complementary loglog models for fractional responses. The proposed estimators: (i) treat observed and omitted covariates in a similar manner; (ii) can deal with boundary outcomes; (iii) accommodate endogenous explanatory variables without requiring knowledge on the reduced form model, although such information may be easily incorporated in the estimation process; (iv) do not require distributional assumptions on the unobservables, a conditional mean assumption being enough forconsistentestimationofthestructuralparameters;and(v)undertheadditionalassumption that the dependence between observables and unobservables is restricted to the conditional mean, produce consistent estimators of partial effects conditional only on observables.engBoundary OutcomesEndogeneityExponential RegressionFractional RegressionTransformation Regression ModelsUnobserved Heterogeneityjournal articledoi.org/10.1080/07474938.2014.9765311532-4168