Measurement and analysis on contribution rate of cotton input factors in China: Based on time-varying elasticity production function

doi:10.3969/j.issn.1004-1524.2017.11.22

›› 2017, Vol. 29 ›› Issue (11): 1938-1948.DOI: 10.3969/j.issn.1004-1524.2017.11.22

• Agricultural Economy and Development • Previous Articles Next Articles

Measurement and analysis on contribution rate of cotton input factors in China: Based on time-varying elasticity production function

WANG Li¹, CHEN Qian¹, LIU Jingde^{2, *}, Yu Yu², CHEN Bing²

1a. College of Economics and Management,1b. Research Center of Cotton Economics, Shihezi University, Shihezi 832000, China;
2. Xinjiang Academy of Agricultural and Reclamation Science, Shihezi 832000, China

Received:2017-07-17 Online:2017-11-20 Published:2017-12-05

Abstract

Abstract: In the present study, the unreasonable neutral assumption of constant output elasticity of the Cobb-Douglas production function was broadened, and the output elasticity of cotton cultivated area, material capital and labor force investment per unit area were regarded as variable parameters. With panel data of input and output in the 11 main cotton production provinces through 1998-2015 in China, a model of variable parametric production function was proposed to calculate the elasticity of cotton input factors and to measure the contribution rate of each input factor. It was shown that time-varying parameters in the production function of cotton did exist, and the returns to scale continued to increase in recent years. Contribution rate of each input factor remained fluctuating. Specifically, the contribution rate of cotton cultivated area increased at first and then decreased, the contribution rate of material capital investment per unit area kept decreasing, the contribution rate of labor force investment per unit area kept increasing, and the contribution rate of technical progress decreased at first and then increased .According to the changing tendency of contribution rate of each input factor in cotton production and the external environment that cotton industry faced, policy recommendations were put forword.

Key words: time-varying elasticity production function, cotton production, technical progress, contribution rate of essential factors

CLC Number:

WANG Li, CHEN Qian, LIU Jingde, Yu Yu, CHEN Bing. Measurement and analysis on contribution rate of cotton input factors in China: Based on time-varying elasticity production function[J]. , 2017, 29(11): 1938-1948.

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Measurement and analysis on contribution rate of cotton input factors in China: Based on time-varying elasticity production function

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