Cyrus Samii
@cdsamii
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NYU prof. I also post at the other place.
Joined February 2009
RT @pengding00: very excited to see the paper "Nonparametric identification is not enough, but randomized controlled trials are" with comme….
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RT @michael_wiebe: How do you get an event study that looks like this? By having almost no treatment variation. 🧵. 1/. #econtwitter https:/….
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RT @RobinsonAmandaL: Scholars of political economy in Africa: please remember to apply for the 2025 #WGAPE meeting at OSU on April 25-27.….
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RT @EGAPTweets: The Mercury Project’s Health Ambassadors researchers are gathered this week in Nairobi to collaborate on data analysis & re….
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Maximal covariate leverage strikes again (cf. Alwyn Young's work on randomization inference and degrees of freedom corrections), balance test edition.
In today's blog, a new paper by @jt_kerwin, Nada Rostom & @OlivierSterck shows that joint orthogonality tests of balance between treatment and control can over-reject (so you conclude not balanced) and that RI can solve this
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Effect heterogeneity restrictions in studying mechanisms and in mediation analysis.
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The seamless interface between estimatr and modelsummary in R is such an efficiency boost, not to mention the brilliant performance of each respective package. @VincentAB and estimatr team (no longer here?) bravo.
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Junior faculty recruitment in IR and American Politics at NYU:.
NYU's Politics Department is seeking outstanding and innovative scholars for two positions at the assistant professor level: International Relations and US Politics. For full descriptions and to apply visit (IR) and (US).
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RT @NYUpolitics: NYU's Politics Department is seeking outstanding and innovative scholars for two positions at the assistant professor leve….
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Modeling out the situation and checking cross partial comparative statics can help. Maybe you also need to transform the outcome to be less vulnerable to ceiling effects, or analyze conditional on pre-treatment levels.
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Hypotheses about effect heterogeneity can be tricky. Factors that could make someone receptive to a treatment could also increase outcome levels without treatment, leaving little room for gain. 1/2.
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Interesting analysis: “sample sizes typical of many real-world clinical trials datasets often constrain regression adjustment methodologies from attaining their theoretical potential in practice.” Proposes methods to “borrow observations from large-scale observational datasets.”.
The economic value of this finite-sample var. red. could be huge: it could be used to decrease N, while holding statistical power fixed. At scale, this could be worth a billion dollars of clinical trial cost savings/year. Details are in the paper: 22/22.
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There is not enough constancy in the social world for "cumulating understanding of recurrent macro phenomena" to be a reasonable goal for social scientists. A better goal is providing "micro navigation tools" for selecting good actions in ever-evolving macro circumstances.
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RT @EGAPTweets: Interested in becoming an EGAP member? We’re expanding our network! . Learn more and apply today: .
docs.google.com
Evidence in Governance and Politics (EGAP) is a global research, evaluation, and learning network promoting rigorous knowledge accumulation, innovation, and evidence-based policy in various governa...
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Loss of an intellectual giant. His work was an inspiration to me as a grad student and remains ever relevant.
Nic van de Walle passed away yesterday. We have lost a comparativist and Africanist. His book with Mike Bratton helped many of us connect the early debates about democratization to Africa. He was a strong advocate for the study of Africa in the US. Here are some of his works.👇
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RT @EGAPTweets: 📣 We're excited to announce our 2024 Membership Round is open! We’re looking to expand our network w/ new individual resear….
docs.google.com
Evidence in Governance and Politics (EGAP) is a global research, evaluation, and learning network promoting rigorous knowledge accumulation, innovation, and evidence-based policy in various governa...
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