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. 2026 Apr 3;16:16049. doi: 10.1038/s41598-026-45825-2

Table 2.

Characteristics of sample firms.

Firm Age Industry Employees
3–5 years (exclusive) 76 22.16% Service industry 153 44.61% Fewer than 50 81 23.62%
5–8 years (exclusive) 111 32.36% Non-service industry 190 55.39% 50–199人 111 32.36%
8–12 years (exclusive) 78 22.74% 200–499人 90 26.24%
12–20 years (exclusive) 46 13.41% 500–1999人 46 13.41%
20 years and above 32 9.33% 2,000 and above 15 4.37%
R&D investment by sales Profitability Ownership
Less than 2% 96 27.99% Very low 57 16.62% Privately owned (including foreign-funded) 198 57.73%
2%−4% (exclusive) 69 20.12% Low 77 22.45% State-owned 145 42.27%
4%−8% (exclusive) 61 17.78% Average 92 26.82%
8%- 20% (exclusive) 61 17.78% High 71 20.70%
20% and above 56 16.33% Very high 46 13.41%