TY - BOOK AU - Bils,Mark AU - Yongsung,Chang TI - Wages and the allocation of hours and effort AV - HD4975 B547W PY - 1999/// CY - Cambridge, Mass. PB - National Bureau of Economic Research KW - WAGES KW - UNITED STATES KW - ECONOMETRIC MODELS KW - BUSINESS CYCLE KW - LABOR PRODUCTIVITY ER -