“…In other words, richer countries tend to concentrate on producing exports. The pattern of the relationship between sectoral export specialization and GDP per capita can be described as a 'Ushaped curve' (Becuwe, Blancheton, and Meissner 2018). That is why we observed that advanced countries, both EU member states and Anglo-Saxon countries, have, on average, a lower export diversification index of 1.91 and 1.93 respectively.…”