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The Informativeness of Combined Experimental and Observational Data under Dynamic Selection

Yechan Park, Yuya Sasaki

arXiv 24 Mar 2024 · Econometrics · 1 citations (OpenAlex)

arXiv:2403.16177 · PDF · DOI · OpenAlex · Extracted main text

Abstract

This paper addresses the challenge of estimating the Average Treatment Effect on the Treated Survivors (ATETS; Vikstrom et al., 2018) in the absence of long-term experimental data, utilizing available long-term observational data instead. We establish two theoretical results. First, it is impossible to obtain informative bounds for the ATETS with no model restriction and no auxiliary data. Second, to overturn this negative result, we explore as a promising avenue the recent econometric developments in combining experimental and observational data (e.g., Athey et al., 2020, 2019); we indeed find that exploiting short-term experimental data can be informative without imposing classical model restrictions. Furthermore, building on Chesher and Rosen (2017), we explore how to systematically derive sharp identification bounds, exploiting both the novel data-combination principles and classical model restrictions. Applying the proposed method, we explore what can be learned about the long-run effects of job training programs on employment without long-term experimental data.

Citation extraction

11
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Most heavily cited references

The works this paper leans on most, across its whole bibliography — not restricted to papers in our corpus. Ranked by composite intensity, which combines how often a work is mentioned, how many sections mention it, and how much of that falls in the main text rather than the appendix.

ReferenceIntensityMentionsSectionsMain text
chernozhukov2019inferenceunmatched citation key chernozhukov2019inference1.00083100%
ashenfelter1985susingunmatched citation key ashenfelter1985susing1.00073100%
3Athey, S., Chetty, R., and Imbens, G (2020) Combining experimental and observational data to estimate treatment effects on long term outcomes0.97124692%
imbens2015causalunmatched citation key imbens2015causal0.9285480%
molchanov2018randomunmatched citation key molchanov2018random0.9285380%
6Heckman, J. J (1981) Heterogeneity and state dependence0.92843100%
chernozhukov2014antiunmatched citation key chernozhukov2014anti0.874102100%
8Ghassami, A., Shpitser, I., and Tchetgen, E. T (2022) Combining experimental and observational data for identification of long-term causal effects0.87492100%
blundell2007changesunmatched citation key blundell2007changes0.87462100%
10Athey, S., Chetty, R., Imbens, G. W., and Kang, H (2019) The surrogate index: Combining short-term proxies to estimate long-term treatment effects more rapidly and precisely0.87452100%

Showing the top 10 of 118 scored citations. 6 of these could not be matched to a bibliography entry, so only the citation key is shown.

Cited by, within the corpus

arXiv econ.EM papers that cite this one, ranked by how heavily they lean on it.

Citing paperIntensityMentionsSections
1Identification of Long-Term Treatment Effects via Temporal Links, Observational, and Experimental Data1.00054
2The Experimental Selection Correction Estimator: Using Experiments to Remove Biases in Observational Estimates0.40511
3Testing Effect Homogeneity and Confounding in High-Dimensional Experimental and Observational Studies0.40511