Abstract Based on the United Nations service trade database, this paper calculates the binary margin of service exports of various countries by using the bilateral service sector export data of 177 exporting countries and 71 importing countries from 2000 to 2015. The revised G-P index was introduced as the key explanatory variable to express property protection, and the PPML method was used for baseline regression.The regression results show that the improvement of intellectual property protection in importing countries has a significant promoting effect on the intensive export margin of partner countries, and has a negative impact on the margin of export expansion. Heterogeneity research indicates that there are differences in the impact and degree of intellectual property protection in importing countries on the intensive and extended margins. Further study finds that intellectual property protection plays a role in market expansion and promotes intensive marginal growth by improving the efficiency of contract execution. It strengthens the supply level of local service enterprises by promoting the country’s innovation ability, completes the import substitution in the domestic market, and negatively affects the expansion margin of other countries’ exports.
2023, Vol. 40 
