Research on World Food Production Efficiency and Environmental Sustainability Based on Entropy-DEA Model

Table 4

Returns to economies of scale in 2018.

Country	CHN	USA	IND	BRA	RUS	FRA	CAN	VNM	DEU	ARG	Mean
MALM	1	1	0.275	0.278	0.661	0.059	0.095	0.111	0.137	0.066	0.368
TECH	1	1	0.409	1	1	0.31	1	0.325	0.642	1	0.769
EFFI	1	1	0.673	0.278	0.661	0.189	0.095	0.342	0.214	0.066	0.452
Return on scale	—	—	IRS	IRS	IRS	IRS	IRS	IRS	IRS	IRS	—