Research on Regional High-Tech Innovation Efficiency and Influence Factors: Evidence from Yangtze River Economic Belt in China

Table.1

Indicator of high-tech innovation efficiency.

Phase	Input	Output
Phase 1	Basic R&D personnel	No. of applied patent
	R&D internal expenditure	No. of new products
Phase 2	No. of applied patent	New products income
	No. of new products	Total industrial profits