Imbens, Guido (contributor); … - 2008
we also observe a
K-dimensional column vector of covariates or pretreatment variables, Xi, with X denoting the
N ×K …×M vectors of realized
outcomes Y, N ×L matrices of exogenous covariates X, and an N ×M matrix of unobserved
components U. A … the econometric analyses
of production functions. Like the potential outcomes framework, a production function g(x …