Preliminary study on prosperity early-warning of coastal port economy of Guangdong province

Based on the grey relational analysis of the import and export volume change of coastal ports in Guangdong province and the industry development,a prosperity index system of coastal port economy of Guangdong province is established.Through analyzing the DI curve of coastal port economic of Guangdong province,the operation status of coastal economy in Guangdong province is estimated and development trend of it in recent years is predicted.