There is also devolution, the port cities of the Hanse are no longer economic powerhouses, and I can see Luna going the way of Detroit after it becomes more economical to harvest 3He from the atmosphere of gas giants (the Pearson elevator to L1 is a minor tourist attraction, and L2 is ...
in the period analyzed. Moreover, the results suggest that the tourism and air-transport industries in Africa could improve national economies, infrastructure, and resident quality of life thanks to international tourism receipts and increasing security levels around travel and tourism activities. ...