Kang, Qiang; Mitnik, Oscar A. - 2008
getting federal cash owe over $40 billion to
executives for past years’ pay and pensions as of the end of 2007.
2In empirical …, which Abadie and Imbens’ (2007) simulation
analysis shows to minimize the root of the mean squared error.12
Also note that t … a “bad” year for the market. To
avoid this problem, we include the fiscal years of the treatment as matching covariates …