On the support of matching algorithms
Date of Original Version
In causal inference a matching algorithm assigns a subset of control units to each treated unit. Using combinatorial techniques we explore the support of matching algorithms to provide counting results and investigate the role of the dimension of the covariates’ space.
Statistics and Probability Letters
Cannas, Massimo, and Gavino Puggioni. "On the support of matching algorithms." Statistics and Probability Letters 131, (2017): 72-77. doi:10.1016/j.spl.2017.08.009.