[Retracted] The Impact of Agricultural Land Rights Policy on the Pure Technical Efficiency of Farmers’ Agricultural Production: Evidence from the Largest Wheat Planting Environment in China

Table 1

Variable definitions and statistical description.

Variables		Definitions	Mean	Std. dev
Output indicator	Gross family farming output	The total value of agricultural products produced by farmers (Yuan), logarithm	8.993	1.053
Input indicator	Farmland management scale	The farmer’s land management area after deducting abandoned tillage (mu), logarithm	1.969	0.780
	Agricultural economic input	The farmer’s total input in agricultural production (Yuan), logarithm	7.593	0.892
	Agricultural production time	The total time spent by farmers in agricultural production (days), logarithm	3.458	3.524
Explained variable	Pure technical efficiency of agricultural production	The pure technical efficiency of farmers’ agricultural production is calculated based on the BBC model	0.192	0.236
Key explanatory variables	Agricultural land confirmation	Whether to receive the contract management right certificate, yes = 1, no = 0	0.293	0.455
Control variable	Average age	Average age of family members, unit, years	40.467	14.049
	Proportion of highly educated population	Proportion of the people with higher education or above	0.152	0.214
	The proportion of women	Proportion of women in household population	0.478	0.158
	Population	Household population, unit: the person	4.316	1.696
	Intergenerational work	Several generations working, none = 0; one generation = 1; two generations = 2; three or more generations = 3	1.021	0.735
	Per capita income	Household per capita disposable income, unit: Yuan, logarithm	8.629	0.912
	Number of plots	Number of parcels owned by households	3.541	2.489
	Willingness to transfer land	Assign a value of 1 to 10. The lower the assignment, the greater the willingness to land inflow; the higher the assignment, the greater the willingness to land outflow	6.531	2.016
	Grain sowing proportion	Grains sown by farmers as a percentage of crop sown area	0.711	0.276
	Proportion of agricultural training	The number of people who have participated in agricultural training as a proportion of the labor force	0.037	0.172
	Agricultural machinery usage	In each link of household wheat production, the total and average proportion of agricultural machinery used	0.530	0.186
	Irrigation conditions	The irrigation conditions of the largest contracted land, assigned 1 to 4 in the order from poor to good	1.790	1.015
	Soil fertility	The soil conditions of the largest contracted land, assigned 1 to 5 in the order from poor to good	2.858	0.810
	Village terrain	The terrain where the village is located, mountain = 1; hills = 2; plains = 3	2.883	0.345
	Distance	Distance from the village to the town government, unit: km	4.244	4.395
	Traffic conditions	Traffic conditions in this village, very poor = 1; poor = 2; average = 3; good = 4; very good = 5	3.035	0.903
Region dummy variable	County dummy variable	County-level dummy variables	—	—