Mao, C.; Li, U., and Liu, M., 2019. Influence of internal control on inefficient investment of Chinese port listed companies. In: Li, L.; Wan, X., and Huang, X. (eds.), Recent Developments in Practices and Research on Coastal Regions: Transportation, Environment and Economy. Journal of Coastal Research, Special Issue No. 98, pp. 34–37. Coconut Creek (Florida), ISSN 0749-0208.

On the basis of 2009–2017 port listed companies in China's Shanghai and Shenzhen stock markets, this paper empirically examines the influence of internal control on inefficient investment. The study found that internal control can effectively inhibit the overall level of inefficient investment and overinvestment of port listed companies, but it is not significant for underinvestment. Internal control has become an important tool to improve the investment efficiency of listed companies in China's ports, which still needs to be continuously strengthened.