[Retracted] Innovation and Entrepreneurship Coupling Based on Simultaneous Equation Model and Its Energy Economic Effect Measurement

Table 4

Degree of collaboration and cooperation between digital economy and sustainable development in seven regions in China.

Years	North-east area	Huadong region	North China	Central China	South China	Southwest region	North-west region
2016	0.3112	0.3137	0.3152	0.2628	0.3274	0.2657	0.3074
2017	0.3151	0.3226	0.3257	0.2761	0.3405	0.2815	0.3202
2021	0.3225	0.3354	0.3386	0.2897	0.3511	0.3024	0.3338
2019	0.3412	0.3524	0.3545	0.3089	0.3594	0.3172	0.3428
2020	0.3513	0.3632	0.3631	0.3105	0.3695	0.3317	0.3593
2021	0.3638	0.3762	0.3754	0.3293	0.3878	0.3501	0.3834
Average value	0.3343	0.3438	0.3455	0.2963	0.3561	0.3082	0.3412
Sample size	205	469	199	253	223	181	101