TY - BOOK AU - Maddala,G.S. TI - Limited-dependent and qualitative variables in econometrics T2 - Econometric Society monographs in quantitative economics SN - 0521338255 AV - HB139 M322L PY - 1999/// CY - Cambridge PB - Cambridge Univ. Press KW - ECONOMETRICS N1 - Includes bibliographical references and index ER -