Kosuke Imai's Publications and Manuscripts

Imai, Kosuke, Dustin Tingley, and Teppei Yamamoto. ``Experimental Identification of Causal Mechanisms.''

Imai, Kosuke, Luke Keele, and Dustin Tingley. ``A General Approach to Causal Mediation Analysis.''

Imai, Kosuke, and Aaron Strauss. ``Planning the Optimal Get-out-the-vote Campaign Using Randomized Field Experiments.''

Imai, Kosuke, Luke Keele, and Teppei Yamamoto. ``Identification, Inference, and Sensitivity Analysis for Causal Mediation Effects.''

Goldstein, Daniel, Kosuke Imai, Anja S. Goritz, and Peter M. Gollwitzer. ``Nudging Turnout: Mere Measurement and Implementation Planning of Intentions to Vote .''

Harris-Lacewell, Melissa, Kosuke Imai, and Teppei Yamamoto. ``Racial Gaps in the Responses to Hurricane Katrina: An Experimental Study.''

Imai, Kosuke, and Teppei Yamamoto. (2010). ``Causal Inference with Differential Measurement Error: Nonparametric Identification and Sensitivity Analysis.'' American Journal of Political Science, Vol. 54, No. 2 (April), Forthcoming.

Ho, Daniel E., Kosuke Imai, Gary King, and Elizabeth Stuart. ``MatchIt: Nonparametric Preprocessing for Parametric Causal Inference.'' Journal of Statistical Software, Forthcoming.

Imai, Kosuke, Ying Lu, and Aaron Strauss. ``eco: R Package for Ecological Inference in 2 x 2 Tables.'' Journal of Statistical Software, Forthcoming.

Imai, Kosuke, Gary King, and Clayton Nall. (2009). ``The Essential Role of Pair Matching in Cluster-Randomized Experiments, with Application to the Mexican Universal Health Insurance Evaluation.'' (with discussions and rejoinder) Statistical Science, Vol. 24, No. 1 (February), pp. 29-53.

King, Gary, Emmanuela Gakidou, Kosuke Imai, Jason Lakin, Ryan T. Moore, Clayton Nall, Nirmala Ravishankar, Manett Vargas, Martha María Téllez-Rojo, Juan Eugenio Hernández Ávila, Mauricio Hernández Ávila, and Héctor Hernández Llamas. (2009). ``Public Policy for the Poor? A Randomised Assessment of the Mexican Universal Health Insurance Programme." (with a comment) The Lancet, Vol. 373, No. 9673 (April), pp. 1447-1454.

Imai, Kosuke. (2009). ``Statistical Analysis of Randomized Experiments with Nonignorable Missing Binary Outcomes: An Application to a Voting Experiment.'' Journal of the Royal Statistical Society, Series C (Applied Statistics), Vol. 58, No. 1 (February), pp. 83-104.

Imai, Kosuke, Gary King, and Olivia Lau. (2008). ``Toward A Common Framework of Statistical Analysis and Development.'' Journal of Computational and Graphical Statistics, Vol. 17, No. 4 (December), pp. 892-913.

Imai, Kosuke. (2008). ``Variance Identification and Efficiency Analysis in Randomized Experiments under the Matched-Pair Design.'' Statistics in Medicine, Vol. 27, No. 24 (October), pp. 4857-4873.

Ho, Daniel E., and Kosuke Imai. (2008). ``Estimating Causal Effects of Ballot Order from a Randomized Natural Experiment: California Alphabet Lottery, 1978-2002.'' Public Opinion Quarterly, Vol. 72, No. 2 (Summer), pp. 216-240.

Imai, Kosuke, Gary King, and Elizabeth A. Stuart. (2008). ``Misunderstandings among Experimentalists and Observationalists about Causal Inference.'' Journal of the Royal Statistical Society, Series A (Statistics in Society), Vol. 171, No. 2 (April), pp. 481-502.

Imai, Kosuke, Ying Lu, and Aaron Strauss. (2008). ``Bayesian and Likelihood Inference for 2 x 2 Ecological Tables: An Incomplete Data Approach.'' Political Analysis, Vol. 16, No. 1 (Winter), pp. 41-69.

Imai, Kosuke. (2008).``Sharp Bounds on the Causal Effects in Randomized Experiments with ``Truncation-by-Death''.'' Statistics & Probability Letters, Vol. 78, No. 2 (February), pp. 144-149.

Imai, Kosuke, and Samir Soneji. (2007). ``On the Estimation of Disability-Free Life Expectancy: Sullivan's Method and Its Extension.'' Journal of the American Statistical Association, Vol. 102, No. 480 (December), pp. 1199-1211.

Horiuchi, Yusaku, Kosuke Imai, and Naoko Taniguchi. (2007). ``Designing and Analyzing Randomized Experiments: Application to a Japanese Election Survey Experiment.'' American Journal of Political Science, Vol. 51, No. 3 (July), pp. 669-687.

Ho, Daniel E., Kosuke Imai, Gary King, and Elizabeth A. Stuart. (2007). ``Matching as Nonparametric Preprocessing for Reducing Model Dependence in Parametric Causal Inference.'' Political Analysis, Vol. 15, No.3 (Summer), pp. 199-236.

Ho, Daniel E., and Kosuke Imai. (2006). ``Randomization Inference with Natural Experiments: An Analysis of Ballot Effects in the 2003 California Recall Election.'' Journal of the American Statistical Association, Vol. 101, No. 475 (September), pp. 888-900.

Imai, Kosuke, and David A. van Dyk. (2005). ``MNP: R Package for Fitting the Multinomial Probit Model.'' Journal of Statistical Software, Vol. 14, No. 3 (May), pp. 1-32. abstract reprinted in Journal of Computational and Graphical Statistics, (2005) Vol. 14, No. 3 (September), p. 747.

Imai, Kosuke. (2005). ``Do Get-Out-The-Vote Calls Reduce Turnout? The Importance of Statistical Methods for Field Experiments.'' American Political Science Review, Vol. 99, No. 2 (May), pp. 283-300.

Imai, Kosuke, and David A. van Dyk. (2005). ``A Bayesian Analysis of the Multinomial Probit Model Using Marginal Data Augmentation.'' Journal of Econometrics, Vol. 124, No. 2 (February), pp. 311-334.

Imai, Kosuke, and David A. van Dyk. (2004). ``Causal Inference With General Treatment Regimes: Generalizing the Propensity Score.'' Journal of the American Statistical Association, Vol. 99, No. 467 (September), pp. 854-866.

Imai, Kosuke, and Gary King. (2004). ``Did Illegal Overseas Absentee Ballots Decide the 2000 U.S. Presidential Election?.'' Perspectives on Politics, Vol. 2, No. 3 (September), pp.537-549. Our analysis is a part of The New York Times article, ``How Bush Took Florida: Mining the Overseas Absentee Vote'' By David Barstow and Don van Natta Jr. July 15, 2001, Page 1, Column 1.

Imai, Kosuke, Luke Keele, Dustin Tingley, and Teppei Yamamoto. (2010). ``Causal Mediation Analysis Using R,'' in Advances in Social Science Research Using R, ed. H. D. Vinod, New York: Springer (Lecture Notes in Statistics), pp. 129-154.

Imai, Kosuke, Gary King, and Clayton Nall. (2009). ``Rejoinder: Matched Pairs and the Future of Cluster-Randomized Experiments.'' Statistical Science, Vol. 24, No. 1 (February), pp. 65-72.

Ho, Daniel E. and Kosuke Imai. (2004). ``The Impact of Partisan Electoral Regulation: Ballot Effects from the California Alphabet Lottery, 1978-2002,'' Princeton Law & Public Affairs Paper No. 04-001: Harvard Public Law Working Paper No. 89.

Imai, Kosuke. (2003) Essays on Political Methodology, Ph.D. Thesis. Department of Government, Harvard University. Winner of the Harvard University Toppan Prize for Best Dissertation in Political Science.

Imai, Kosuke. (2003) ``Review of Jeff Gill's Bayesian Methods: A Social and Behavioral Sciences Approach,'' The Political Methodologist, Vol. 11, No. 1, pp. 9-10.

Imai, Kosuke, and Jeremy Weinstein. (2000) ``Measuring the Economic Impact of Civil War,'' Harvard University Center for International Development, Working Paper Series, No. 51.

Imai, Kosuke. (2007). ``Keiryo Seijigaku niokeru Ingateki Suiron (Causal Inference in Quantitative Political Science).'' Leviathan, Vol. 40, pp. 224-233.

Horiuchi, Yusaku, Kosuke Imai, and Naoko Taniguchi. (2005). ``Seisaku Jyoho to Tohyo Sanka: Field Jikken ni yoru Kensyo (Policy Information and Voter Participation: A Field Experiment).'' Nenpo Seijigaku (The Annals of the Japanese Political Science Association), 2005-I, pp. 161-180.

Taniguchi, Naoko, Yusaku Horiuchi, and Kosuke Imai. (2004). ``Seito Saito no Etsuran ha Tohyo Kodo ni Eikyo Suruka? (Does Visiting Political Pary Websites Influence Voting Behavior?).'' Nikkei Research Report, Vol. IV, pp. 16-19.