MEASURING CONTRIBUTING FACTORS TO INTERREGIONAL AGRICULTURAL LABOR PRODUCTIVITY DIFFERENTIALS: A JOINT PROFIT FORMULATION*
利用联合利润函数的泰勒级数近似，量化了加拿大农业部门区域间劳动生产率差异的贡献因素，包括产出价格差异、资本深化、能源价格等，对理解区域农业效率差异有参考价值。
ABSTRACT Using Taylor series approximations of joint profit functions, a methodology is outlined to quantify interregional differentials in the Canadian agriculture sector by region and to quantify the contributing factors to regional labor productivity differences. These contributing factors are output price differentials–both crop and livestock, differentials in “land and buildings” capital deepening, “other” capital deepening, energy prices, other material prices, and efficiency. The joint profit formulation permits the analysis of effects of regional specific output price and output mix differentials.