Newey, Whitney K.; Stouli, Sami - 2025 - Date: January 24, 2025
dimension and relate conditional nonsingularity to the full support condition of Imbens and Newey (2009), thereby embedding semi … conditions for identification of average treatment effects. A sufficient condition for identification is conditional … nonsingularity, that the second moment matrix of the known functions given the variable in the varying coefficients is nonsingular …