TY - GEN AU - Wooldridge, Jeffrey M. TI - Introductory econometrics : a modern approach: a modern approach SN - 0324289782 (hbk.) U1 - 330.015195 20 PY - 2006/// CY - Mason, OH PB - Thomson/South-Western, 2006 KW - Econometrics N1 - Includes bibliographical references (p. 854-858) and index ER -