The decline of transport and communication costs relative to 1930

Sea freight corresponds to average international freight charges per tonne. Passenger air transport corresponds to average airline revenue per passenger-mileuntil 2000 spliced to US import air passenger fares afterwards. International calls correspond to cost of a three-minute call from New York to London.

19302005194019501960197019801990200050%International calling costs (relative to 1930)
The decline of transport and communication costs relative to 1930

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