Media type: E-Article Title: The Covariance Transformation And the Instrumental Variables Estimator of the Fixed Effects Model Contributor: Pliskin, Jeffrey L. imprint: Elsevier BV, 1999 Published in: SSRN Electronic Journal (1999) Language: English DOI: 10.2139/ssrn.181091 ISSN: 1556-5068 Keywords: Pharmacology (medical) Origination: Footnote: