K-class estimation is a class of estimation methods that include the 2SLS, OLS, LIML, and MELO methods as special cases. A K-value less than 1 is recommended but not required. MELO is a Bayesian ...

Seemingly unrelated regression (SUR), also called joint generalized least squares (JGLS) or Zellner estimation, is a generalization of OLS for multi-equation systems. Like OLS, the SUR method assumes ...