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| Heterogen Behandlings Effekt Matching Estimator× | Propensity Score Matching× | |
|---|---|---|
| Fagområde≠ | Kausal inferens | Forskningsstatistik |
| Familie≠ | Regression model | Process / pipeline |
| Oprindelsesår≠ | 1997-2006 | 1983 |
| Ophavsperson≠ | Heckman, Ichimura & Todd; Abadie & Imbens | Paul Rosenbaum and Donald Rubin |
| Type≠ | Causal inference / nonparametric matching | Method |
| Oprindelig kilde≠ | Heckman, J. J., Ichimura, H., & Todd, P. E. (1997). Matching as an Econometric Evaluation Estimator: Evidence from Evaluating a Job Training Programme. Review of Economic Studies, 64(4), 605-654. DOI ↗ | Rosenbaum, P. R., & Rubin, D. B. (1983). The central role of the propensity score in observational studies for causal effects. Biometrika, 70(1), 41–55. DOI ↗ |
| Aliasser≠ | HTE matching, subgroup matching estimator, conditional matching estimator, CATE matching | PSM, propensity score weighting, covariate balance |
| Relaterede≠ | 6 | 3 |
| Resumé≠ | The Heterogeneous Treatment Effect (HTE) Matching Estimator extends standard matching to recover how treatment impacts differ across subgroups or covariate values. Rather than reporting a single average treatment effect, it pairs treated and control units on observed characteristics and then estimates the conditional average treatment effect (CATE) as a function of those characteristics — revealing who benefits most, least, or not at all. | Propensity score matching (PSM) is a method for reducing confounding bias in observational studies by balancing baseline characteristics between treatment groups, simulating randomization. Developed by Rosenbaum and Rubin (1983), it estimates the probability of receiving treatment given observed covariates, then matches or weights treated and control individuals with similar treatment probabilities. Widely used in medicine, epidemiology, and policy evaluation when randomized trials are infeasible or unethical, enabling estimation of treatment effects while controlling for selection bias. |
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