Ecoefficiency of Intensive Agricultural Production and Its Influencing Factors in China: An Application of DEA-Tobit Analysis

Table 1

Summary of inputs and outputs selected in previous studies.

Researcher	Main concept	Research object	Inputs	Outputs
Ray and Ghose (2014) [25]	Production efficiency	Agriculture in India	() Land	() Food grains
			() Fertilizers	() Nonfood grains
			() Irrigated area
			() Pump sets
			() Tractors
			() Electricity
			() Labor
Ma and Feng (2013) [26]	Efficiency	Agriculture in China	() Labor	() Gross value of agricultural output
			() Land
			() Machinery
			() Fertilizer
			() Draft animals
Picazo-Tadeo et al. (2011) [27]	Farming ecoefficiency	Spanish farmers	() Seeds	() Sales
			() Nitrogen	() Coupled subsidies
			() Phosphorus	() Agrienvironmental payments
			() Pesticides
			() Energy
Chih-Hai et al. (2010) [28]	Efficiency	Agriculture in China	() Agricultural labor	() Gross value added of farming
			() Agricultural machinery
			() Cultivated land
Nkamleu (2004) [29]	Efficiency	Agriculture in Africa	() Labor	() Aggregated outputs of agricultural production
			() Agricultural land
			() Fertilizer
			() Tractors