Data cited at: Institute of Shipping Economics and Logistics (ISL)
ISL: Institute of Shipping Economics and Logistics
RWI: Leibniz-Institut für Wirtschaftsforschung
The Index is based on data continuously collected from 83 world container ports by ISL as part of its market monitoring. Together, they account for around 60 per cent of worldwide container handling. Because large parts of international merchandise trade are transported by ship, the development of port handling is a good indicator for world trade. As many ports release information about their activities only two weeks after the end of the respective month, the RWI/ISL Container Throughput Index is a reliable early indicator for the development of international merchandise trade and hence for the activity of the global economy.