An Empirical Study on the High-Quality Development of “Specified, Refined, Characterized, and Innovative” Small- and Medium-Sized Enterprises under the Background of “Dual Circulation”: A Case Study of Wuxi City, Jiangsu Province

Table 1

Variable definition.

Explained variable	Definition
Willingness to develop “SRCI”	Yes = 1, no = 0
Explanatory variables
Be high-tech enterprise	Yes = 1, no = 0
Operating income (yuan)	Less than 50 million = 0, 50 million to 100 million = 1, 100 million to 1 billion = 2, 1 billion and above = 3
The proportion of technical personnel	0–10% = 0, 11%–20% = 1, 21%–40% = 2, 40% and above = 3
Proportion of R&D expenses to operating income	0–5% = 0, 5%–10% = 1, 10% and above = 2
Need for financing	Yes = 1, no = 0
Number of patents	0–20 = 0, 21–50 = 1, 51–100 = 2, 101 and above = 3
Number of trademarks	0–3 = 0, 4–8 = 1, 9–15 = 2, 16 and above = 3
Number of qualification certificates	0–3 = 0, 4–8 = 1, 9–15 = 2, 16 and above = 3
Understand the policy of “SRCI” (point)	1–3 = 0, 4–7 = 1, 8–10 = 2
Evaluation of the effect of policy implementation (point)	1–3 = 0, 4–7 = 1, 8–10 = 2