Abstract: To deeply assess the innovative effects brought by regional industrial coordination policies and their impact on the technology market integration, this article conducts an empirical study based on the data from listed companies in the three provinces and one municipality of the Yangtze River Delta and the inter-city patent transfer data with the establishment of the G60 Science and Technology Innovation Valley of Yangtze River Delta as a quasi-natural experiment, using the DID method. The empirical result shows that the G60 Science and Technology Innovation Valley and the series of associated policy measures have effectively enhanced the innovation input and output level of enterprises. The mechanism research shows that this policy promotes the flow of innovation elements between cities, alleviates corporate financing constraints, and improves the market competition level in the industry. All these provide an excellent innovation environment for enterprises, thereby boosting the corporate innovation. Further discussion indicates that the establishment of the G60 Science and Technology Innovation Valley has also promoted the trading and transformation of innovation achievements among member cities.
