Research on rising labor prices,factor substitution and facility vegetable production in China:Taking tomato,cucumber,eggplant and bell pepper as examples
Along with the disappearance of China's"demographic dividend"and the rise of labor prices,the factor input structure in China's facility vegetable production has changed.Four facility vegetables from 2011 to 2020 were selected as research objects,and translog cost share functions were established to calculate the price elasticity of demand of labor factors and the elasticity of demand substitution among labor,fertilizer and agricultural machinery factors.The study found that the price elasticity of the demand coefficient of labor factors is negative and the absolute value is less than 1,in-dicating the lack of elasticity;the elasticity of the substitution coefficient of machinery and labor and fertilizer is greater than 0 and the coefficient value is greater than 0.5,with significant substitutability;the elasticity coefficient of labor and fertilizer is less than 0 and the absolute value decreases close to 0,which shows that substitutability is decreasing,and complementarities are increasing.For the conclusion of the study,it is proposed to increase the subsidies for the purchase and lease of agricultural machinery for the production of vegetables in facilities,increase the research and development of agricultural machinery,promote the deep integration of agronomy and agricultural machinery,and optimize the use of fer-tilizer.
Facility vegetableFactor endowmentCost structureElasticity of substitution