This free course was written by Tony Hirst.
Except for third party materials and otherwise stated (see Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence .), this content is made available under a
The material acknowledged below is Proprietary and used under licence (not subject to Creative Commons Licence). Grateful acknowledgement is made to the following sources for permission to reproduce material in this free course:
Course image © peterhowell/iStockphoto.com
Figure 1 © cgouin/istockphoto.com
Figure 2 © Sam Camp/istockphoto.com
Figure 3 © Terribil-T/istockphoto.com
Figures 4 and 5 adapted from Comtrade data extraction interface: https://comtrade.un.org/data/
Exercises, tables and data for exercises compiled and/or extracted from Comtrade data extraction interface: https://comtrade.un.org/data.
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