winsorizing may induce or exacerbate bias. We term this source of bias Iatrogenic' (or econometrician induced) error. The …

This paper develops and applies semiparametric econometric methods to estimate the form of selection bias that arises … econometric selection model which represents the bias solely as a function of the probability of participation; and (c) the method … of difference-in-differences. Using data from an experiment on a prototypical social program combined with unusually rich …

This paper considers causal inference and sample selection bias in non-experimental settings in which: (i) few units in …-treatment characteristics. We propose the use of propensity score matching methods and implement them using data from the NSW experiment … and compare the estimates of the treatment effect obtained using our methods to the benchmark results from the experiment …

Field experiments rely heavily on self-reported data, but subjects may misreport behaviors, especially sensitive ones …

In three sets of experiments involving over 4,200 subjects, we show that agents motivated to be selfish make systematic …