ENGLISH standardized workday of eight hours. See also MAN DAY EQUIVALENT. F: TEMPS DE TRAVAUX 8: PERFIL DE TRABAJO The seasonal pattern of labour requirements for a given ACTIVITY, usually specified on a weekly or monthly basis. 140 LAW OF DIMINISHING RETURNS F: LOI DES RENDEMENTS DECROISSANTS S: LEY DE RENDIMIENTOS FISICOS DECRECIENTES The physical law that applies to all production processes so that the MARGINAL PRODUCT of a variable factor eventually declines as more of the factor is used relative to a given amount of fixed factors. See PRINCIPLE OF MARGINALITY. 141 LEAST-SQUARES REGRESSION F: METHOD DES MOINDRES CARRIES 8: REQRESION DE MINIMOS CUADRADOS A statistical method for fitting continuous mathematical functions involving a single dependent variable and one or more independent variables. It is used in PRODUCTION FUNCTION ANALYSIS. 142 LIABILITIES F: PASSIF 8: PASIVO The value of claims on the ASSETS of a business by the various suppliers of funds to it. See TOTAL LIABILITIES. 143 LINEAR PROGRAMMING F: PROORAMMATION LINEAIRE S: PROGRAMACION LINEAL A mathematical procedure involving optimization of a linear objective function subject to constraints specified in linear form. It is used for solving resource allocation problems. Major possible uses in FARM MANAGEMENT relate to farm planning and the formulation of livestock diets. Generally it is carried out on a computer. PAGE 29 139 LABOUR PROFILE