Characterizing selection bias using experimental data

Article Abstract:

Selection bias was found to be the smallest of the three components of bias that are traditionally measured. The assumption that selection bias show a zero value for all intervals where the matching method is based has been rejected. In addition, assumptions that support matching method were invalidated by data taken from an experiment on a prototypical social program and from nonexperimental comparison groups. On the other hand, assumptions that support a semiparametric version of the differences-in-differences method were validated by the same data.

Econometrics & Model Building, Econometrics, Test bias, Business models, Research bias

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Accounting for dropouts in evaluations of social programs

Article Abstract:

Experimental data involving dropout treatment group members were used in the assessment of social programs. In the case of group members who have undergone partial program treatment, standard estimator were proven inconsistent due to violation of identifying assumption. The parameter regarding the impact of full treatment on the fully treated, meanwhile, was proven to be not of major economic interest in the assessment of social program specifically when identifying assumption is inconsistent.

Economics, Research and Development in the Social Sciences and Humanities, Analysis, Economic research, Experimental design, Research design, Dropouts

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Human capital pricing equations with an application to estimating the effect of schooling quality on earnings

Article Abstract:

Alternative models for pricing labor services have been developed. The models clearly identify the influence of market demand and supply. They reveal that standard neoclassical efficiency units models of labor services are inconsistent with data data derived from the US labor market. More accurate insights of data on individual earnings can be acquired by using a model of heterogeneous skills where regional labor market shocks influence unskilled labor prices.

Economic aspects, Pricing, Education, Labor market, Wages, Wages and salaries

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