Abstract: The use of standard coordination to accurately assess market demand is the key to the stable development of export enterprises in overseas markets, and is of great significance for building more world-class export enterprises. Based on Bayesian learning model, an analysis framework for the dynamic development of export enterprises is constructed. Using the matching data between China Customs database and industrial enterprise database from 2000 to 2014, the impact and mechanism of institutional openness on the dynamic development of export enterprises are analyzed from the perspective of standard coordination. Research has found that standard coordination reduces the adjustment range of expected demand for export enterprises and improves the accuracy of demand learning by reducing market signal noise. Standard coordination significantly improves the efficiency of demand learning for export enterprises, enabling them to identify and adapt to changes in market demand more quickly. The dynamic improvement of productivity is the core transmission mechanism, and standard coordination optimizes the demand learning ability of export enterprises by promoting their productivity improvement. Further analysis shows that the impact of standard coordination increases with the cumulative number of coordination times and the age of overseas markets, but this enhancement effect has an effective boundary, and the impact of standard coordination also varies depending on the industry and standards, as well as whether foreign investors hold shares. Standard coordination can also significantly reduce the probability or risk of export enterprises exiting the market. Based on this, the government should continue to expand institutional openness, promote the internationalization process of Chinese standards, guide Chinese export enterprises to deeply participate in the formulation of international standards, and improve the dynamic monitoring and policy support system for standard coordination to help export enterprises develop steadily in overseas markets.

Key words: institutional openness, standard coordination, demand learning, dynamic development of export enterprises, productivity mechanism