TY - BOOK AU - Pollak,Robert A. AU - Wales,Terence J. TI - Demand system specification and estimation SN - 0195069412 : U1 - 338.5212 PY - 1992/// CY - New York PB - Oxford University Press KW - Demand functions (Economic theory) KW - Consumer behavior KW - Mathematical models N1 - Includes bibliographical references and index ER -