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Abstract In order to explore the efficiency of agricultural subsidies under environmental constraints， this paper takes the economic and social development data of 18 provinces from 2004 to 2013 as the research sample， and evaluates the efficiency of agricultural subsidies within the analytical framework of the DEA directional distance function and its decomposition method. The results show that， although the total amount of agricultural subsidies has increased year by year， the subsidy efficiency has not been effectively improved. Although factor input has a certain crowding out effect on the subsidy effect， non-point source pollution also compensates for the positive effect of subsidies， the increase of output compensates for the loss caused by the extrusion effect and non-point source pollution to some extent. Therefore， upgrading the level of technology， innovating the methods of subsidies， and increasing support for eco-agriculture may become the main direction of subsidy development in China.
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Received: 21 May 2019
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2019, Vol. 58 
