Randomization Tests for Distributions of Individual Treatment Effects via Combined Rank Statistics
结合秩统计量的个体处理效应分布随机化检验
What proportion of treated units actually benefited from an experimental intervention? What is the median or the largest individual treatment effect? This paper develops methods for answering such questions about the distribution of individual causal effects in randomized experiments. Existing approaches require the analyst to select a rank-based test statistic before observing the data. A poor choice can substantially reduce power, while searching over multiple test…