Details Author(s): Daniel E. HoKosuke Imai Publish Date: January 1, 2006 Publication Title: Journal of the American Statistical Association Format: Journal Article Volume 101 Page(s) 888 Citation(s): Daniel E. Ho and Kosuke Imai, Randomization Inference with Natural Experiments: an Analysis of Ballot Effects in the 2003 California Recall Election, 101 Journal of the American Statistical Association 888 (2006).