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A growing literature on inference in difference-in-differences (DiD) designs with grouped errors has been pessimistic about obtaining hypothesis tests of the correct size, particularly with few groups. We provide Monte Carlo evidence for three points: (i) it is possible to obtain tests of the...
Persistent link: https://www.econbiz.de/10013061928
This paper has two main parts. In the first, we describe a method that smooths the objective function in a general class of indirect inference models. Our smoothing procedure makes use of importance sampling weights in estimation of the auxiliary model on simulated data. The importance sampling...
Persistent link: https://www.econbiz.de/10012947135
" generalization that allows for omitted variables in the assignment rule, noncompliance, and certain types of measurement errors in …
Persistent link: https://www.econbiz.de/10013029646
We examine a new general class of hazard rate models for survival data, containing a parametric and a nonparametric component. Both can be a mix of a time effect and (possibly time-dependent) marker or covariate effects. A number of well-known models are special cases. In a counting process...
Persistent link: https://www.econbiz.de/10013049749
This paper investigates the finite sample properties of a range of inference methods for propensity score-based matching and weighting estimators frequently applied to evaluate the average treatment effect on the treated. We analyse both asymptotic approximations and bootstrap methods for...
Persistent link: https://www.econbiz.de/10012999030
Across many disciplines, the fixed effects estimator of linear panel data models is the default method to estimate causal effects with nonexperimental data that are not confounded by time-invariant, unit-specific heterogeneity. One feature of the fixed effects estimator, however, is often...
Persistent link: https://www.econbiz.de/10014348300
There is a large literature estimating Arrow-Pratt coefficients of absolute and relative risk aversion. A striking feature of this literature is the very wide variation in the reported estimates of the coefficients. While there are often legitimate reasons for these differences in the estimates,...
Persistent link: https://www.econbiz.de/10013099686
While classical measurement error in the dependent variable in a linear regression framework results only in a loss of … precision, non-classical measurement error can lead to estimates which are biased and inference which lacks power. Here, we … consider a particular type of non-classical measurement error: skewed errors. Unfortunately, skewed measurement error is likely …
Persistent link: https://www.econbiz.de/10012863376
This paper presents semiparametric estimators of distributional impacts of interventions (treatment) when selection to the program is based on observable characteristics. Distributional impacts of a treatment are calculated as differences in inequality measures of the potential outcomes of...
Persistent link: https://www.econbiz.de/10013146176
In this paper we perform inference on the effect of a treatment on survival times in studies where the treatment assignment is not randomized and the assignment time is not known in advance. Two such studies are discussed: a heart transplant program and a study of Swedish unemployed eligible for...
Persistent link: https://www.econbiz.de/10012765090