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econ.EM2025
Leveraging LLMs to Improve Experimental Design: A Generative Stratification Approach
George Gui, Seungwoo Kim
Pre-experiment stratification, or blocking, is a well-established technique for designing more efficient experiments and increasing the precision of the experimental estimates. How…
econ.EM2020★ 6 cited
Combining Observational and Experimental Data to Improve Efficiency Using Imperfect Instruments
George Z. Gui
Randomized controlled trials generate experimental variation that can credibly identify causal effects, but often suffer from limited scale, while observational datasets are large,…