Abstract
The low and slowly increasing soybean yield restricts the development of soybean production. Accurate measures of total factor productivity (TFP) for soybean production can be helpful in identifying conditions, institutions or policies that promote soybean production development in China. In this paper, TFP growth for soybean production was estimated for a panel data of 10 major soybean producing provinces from 2005 to 2017. Results reveal that TFP grew at an average rate of 1.3% over the whole period, with technical progress contributing 2.3% and efficiency change providing the other -1.0%. The change of TFP for soybean production over that time, whether increase or decline, was mainly derived by technical change except in three years (2005-2007). Positive TFP growth in the provinces of Liaoning and Inner Mongolia, and negative TFP growth in Hebei and Anhui were mainly driven by efficiency change, specifically scale efficiency change except pure technical efficiency in Liaoning.
Highlights
China is the original country of soybean
Data Envelopment Analysis (DEA)-Malmquist index model is used in this paper, which is suitable for panel data, and we considered as far as possible a variety of input factors to estimate total factor productivity (TFP) for soybean in 10 provinces from 2005 to 2017
Distance functions were calculated by using DEAP2.1 software, and selecting output orientation of constant return to scale (CRS)3 as parameter according to DEA-Malmquist index model established previous and related input-output statistics data
Summary
China is the original country of soybean. Once, it was the largest producer and exporter of soybean in the world. With the development of Chinese economy and the change of consumption structure, soybean demand continues to grow in China and soybean imports continue to increase, which has ac-. The contribution rate of planting area to total soybean production showed a downward trend due to the limited arable land resource in China. Soybean production in China will mainly depend on the increase of soybean yield. We estimate the total factor productivity (TFP) of soybean and analyze the contributing factors, so that effective measures will be taken to improve soybean yield to further promote the development of soybean production in China
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