Study on the Operation Efficiency of Toll Roads in China from the Perspective of Scale Economy

Table 1

Average operating efficiency and index decomposition of toll roads in 29 provinces (with 2010 as the base period).

	M	TC	EC	PTEC	SEC	Mileage
2013	1.071306	1.094891	0.992049	1.015689	0.983596	1.010025
2014	1.010079	0.915136	1.125439	1.151682	0.993856	1.049554
2015	1.056895	0.945972	1.134623	1.105395	1.050528	1.061550
2016	1.10107	1.016904	1.097999	1.10819	1.020136	1.104533
2017	1.146968	1.061034	1.096073	1.078796	1.062107	1.057047
2018	1.112477	0.982934	1.154477	1.163751	1.046036	1.085031
Annual compound increase	1.34%	−0.21%	1.81%	1.91%	0.56%	1.03%

Note. M is the Malmquist index; TC is the index for technological progress change; EC is the index for efficiency changes and can be broken down into PTEC (Pure Technical Efficiency Change Index) and SEC (Scale Efficiency Change Index). The above average is the arithmetic mean of the efficiency indicators of 29 provinces per year. Mileage is the toll road mileage index (the annual toll road mileage/2010 toll road mileage). The compound annual growth rate represents the annual compound growth rate of each index in 2010.