Showing 1 - 10 of 209
We present a simple way to estimate the effects of changes in a vector of observable variables X on a limited dependent variable Y when Y is a general nonseparable function of X and unobservables. We treat models in which Y is censored from above or below or potentially from both. The basic idea...
Persistent link: https://www.econbiz.de/10005774908
We propose a new inverse probability weighting (IPW) estimator for moment condition models with missing data. Our estimator is easy to implement and compares favorably with existing IPW estimators, including augmented inverse probability weighting (AIPW) estimators, in terms of efficiency,...
Persistent link: https://www.econbiz.de/10005777945
In this paper we study identification and estimation of a correlated random coefficients (CRC) panel data model. The outcome of interest varies linearly with a vector of endogenous regressors. The coefficients on these regressors are heterogenous across units and may covary with them. We...
Persistent link: https://www.econbiz.de/10005778582
We consider a general framework to study the evolution of wage and earnings residuals that incorporates features highlighted by two influential but distinct literatures in economics: (i) unobserved skills with changing non-linear pricing functions and (ii) idiosyncratic shocks with both...
Persistent link: https://www.econbiz.de/10010821837
The problem of how to control for covariates is endemic in evaluation research. Covariate-matching provides an appealing control strategy, but with continuous or high-dimensional covariate vectors, exact matching may be impossible or involve small cells. Matching observations that have the same...
Persistent link: https://www.econbiz.de/10005725318
This paper estimates the effect of early lead exposure on academic achievement and adult earnings. We analyze longitudinal information from individuals attending primary and secondary schools in the city of Arica (in northern Chile). Between 1984 and 1989, Arica received more than 20,000 tons of...
Persistent link: https://www.econbiz.de/10010969226
Much of what we know about the marginal effect of pollution on infant mortality is derived from developed country data. However, given the lower levels of air pollution in developed countries, these estimates may not be externally valid to the developing country context if there is a nonlinear...
Persistent link: https://www.econbiz.de/10010969434
It is well known that exposure to lead has numerous adverse effects on behavior and development. Using data on two cohorts of children from the NLSY, this paper investigates the effect of early childhood lead exposure on behavior problems from childhood through early adulthood. I find large...
Persistent link: https://www.econbiz.de/10010885304
China's extremely high levels of urban air, water and greenhouse gas emissions levels pose local and global environmental challenges. China's urban leaders have substantial influence and discretion over the evolution of economic activity that generates such externalities. This paper examines the...
Persistent link: https://www.econbiz.de/10010950839
Many of the world's environmental problems cross international borders, and to address those problems approximately 1,000 different International Environmental Agreements (IEAs) are in operation today. Most evidence, however suggests that those IEAs are ineffectual, merely ratifying...
Persistent link: https://www.econbiz.de/10010950867