Research Background and Content. Intellectual property and high-quality economic development are mutually reinforcing and restrictive, China is a large but not a strong intellectual property country, and China’s high-quality economic development still has problems of inadequacy and imbalance. Based on the above research background, this paper mainly studies the relationship between the intellectual property system and the high-quality economic development system from the perspective of coupled and coordinated development. Research Objective. The objective is to measure the coupling and coordination degree between the intellectual property development system and the high-quality economic development system and to explore the spatiotemporal characteristics and differences in the coupling and coordination between the two systems. Research Method. Based on the data of 30 provinces (autonomous regions and municipalities) from 2013 to 2020, the methods used in this paper to analyse include entropy weight method, grey correlation analysis, coupling coordination degree model, and Dagum Gini coefficient. Research Results. The development of economic openness and innovation are more closely related to the development of intellectual property, and the protection, utilization, and creation of intellectual property are more closely related to high-quality economic development; the coupling coordination degree of the two systems shows the characteristics such as “high in the east and low in the west” and “coastal area is better than inland,” and the development of intellectual property lags behind the high-quality economic development; the coupling and coordination degree of the two systems shows a slight growth trend in most provinces, but the overall differences shows an expanding trend, and differences between regions are the main sources of overall regional differences. Research Innovation. Research innovation is to study the two-way relationship between intellectual property and high-quality economic development and to measure the coupling and coordination degree between the development system of intellectual property and the high-quality economic development system, and its spatiotemporal characteristics, regional differences, and sources of differences are analyzed. Research Value. Research value is to provide decision reference for the two-way empowerment of intellectual property and high-quality economic development and regional coordinated development.

With the promotion of intellectual property strategy, the whole chain development of intellectual property environment faced by manufacturing firms has been improved, but the effect of the whole chain development of intellectual property on firm performance still needs to be studied. The purpose of this study is to investigate the impact of the whole chain development of intellectual property on different types of manufacturing firm performance. A panel regression model is constructed based on listed manufacturing firms from 2010 to 2020, and this is tested empirically. The results of the study show that the whole chain development of intellectual property has a promotion effect on manufacturing firm performance, among which the promotion effect of intellectual property services is the strongest, followed by intellectual property utilization and intellectual property creation, and the promotion effect of intellectual property management has a significant lag, while the relationship between intellectual property protection and manufacturing firms performance is significantly negative. The promotion effect of the whole chain development of intellectual property on different types of manufacturing firm performance is heterogeneous, and the promotion effect of the whole chain development of intellectual property on the performance of small-scale, non-state-owned, medium-high-technology manufacturing firms is stronger than that of large-scale, state-owned, low-technology manufacturing firms. This study not only extends the research direction of intellectual property, but also adds to the literature on firm performance. In addition, the findings of this paper help government authorities to further optimize the strategic layout of the whole chain development of intellectual property, promote manufacturing firms to solve internal management problems, and achieve a positive interaction between the top-level design of the intellectual property and the bottom-level logic of manufacturing firms.