Bekker, Paul A.; Kleibergen, Frank - Faculteit Economie en Bedrijfskunde, Rijksuniversiteit … - 2001
The paper considers the K-statistic, Kleibergen’s (2000) adaptation of the Anderson-Rubin (AR) statistic in instrumental variables regression. Compared to the AR-statistic this K-statistic shows improved asymptotic efficiency in terms of degrees of freedom in overidenti?ed models and yet it...