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Citation: E. Biorn et Tj. Klette, PANEL-DATA WITH ERRORS-IN-VARIABLES - ESSENTIAL AND REDUNDANT ORTHOGONALITY CONDITIONS IN GMM-ESTIMATION, Economics letters, 59(3), 1998, pp. 275-282

Authors: AASNESS J BIORN E SKJERPEN T

Citation: J. Aasness et al., ENGEL FUNCTIONS, PANEL-DATA, AND LATENT-VARIABLES, Econometrica, 61(6), 1993, pp. 1395-1422