Table 7.

Percentage of policy instruments’ columns in typical regions from 2011 to 2023 (%).

Time interval	Instrument types	Yangtze River Delta			Southeast coastal area			Beijing-Tianjin-Hebei
		Jiangsu	Zhejiang	Shanghai	Fujian	Guangdong	Hainan	Hebei	Beijing	Tianjin
2011–2015	Supply	44.58	38.82	42.44	43.84	44.80	45.58	42.82	37.64	40.19
	Environment	28.32	37.76	39.53	32.27	31.52	33.88	22.36	33.95	36.14
	Demand	27.10	23.41	18.02	23.89	23.68	20.54	34.82	28.41	23.68
2016–2020	Supply	47.12	52.39	50.22	43.11	49.09	42.37	50.48	46.64	44.43
	Environment	27.25	24.44	27.36	28.86	22.38	36.77	25.52	35.78	33.99
	Demand	25.63	23.17	22.42	28.03	28.53	20.86	24.01	17.58	21.58
After 2020	Supply	51.41	62.50	54.63	58.16	51.96	57.51	59.81	51.37	58.24
	Environment	24.73	23.21	22.45	12.77	26.26	20.47	22.12	28.63	27.65
	Demand	23.85	14.29	22.92	29.08	21.79	22.02	18.08	20.00	14.12

Data were obtained from the authors’ calculations.