Sam Wang Email & Phone Number

Washington, Dc, Us

- Designed and executed 2 end-to-end randomized experiments with businesses in Ethiopia and Nigeria, managing 4 team leads and 15 enumerators - Designed and executed 1 end-to-end observational causal inference (IV) project by developing a structural model and conducting analysis on large datasets covering the universe of firms and prices in Mexico- Designed complex surveys, conducted power calculations, performed exploratory data analysis, monitored evaluation metrics, and mitigated attrition- Engineered features, handled missing data, and corrected for sampling bias using weighting - Raised $37K of internal and external research funding (Weiss Fund, UK CEPR/FCDO, CEGA)

Seattle, Washington, United States

- Identified causal drivers of demand substitution by applying staggered diff-in-diff and causal ML with XGBoost on dataset with 40B observations, leading to actionable strategies for reducing demand loss- Advocated for and implemented mediation analysis with Structural Equation Modeling to quantify the contribution of each driver- Predicted 620K product-level heterogeneous treatment effects to convey reliable insights to product managers- Engineered features through complex SQL queries and addressed class imbalance- Devised and successfully tested a scalable approach to construct heterogeneous causal graphs- Worked with production systems using Docker

Cambridge, Massachusetts, United States

Health Economics Researcher, 𝗝-𝗣𝗔𝗟 𝗡𝗼𝗿𝘁𝗵 𝗔𝗺𝗲𝗿𝗶𝗰𝗮 𝗮𝘁 𝗠𝗜𝗧- Quantified the spillover effects of a Medicare payment reform on non-covered patients by constructing data pipelines from raw insurance claims data of 55 million individuals to analysis scripts using SQL and Stata, resulting in a tier 1 journal publication- Estimated the value added of 14,000 nursing facilities using Instrumental Variables and data from 6 million Medicare patients- Presented health policy research results to cross-functional partners and drafted business documents disseminating findings- Took charge of the team’s transition to Github and presented coding best practices to colleagues

Doctor Of Philosophy - Phd, Economics

Activities and Societies: Berkeley Economists for Equity, Graduate Economics Association, Development Seminar Coordinator

Bachelor’S Degree, Economics, Mathematics

Activities and Societies: Phi Beta Kappa, Peaslee Debate Society, Mathematics Teaching Assistant

Study Abroad