| http://www.w3.org/ns/prov#value | - This is related, I think, to how university study is funded through very large loans in the US. Textbooks in the UK used to be significantly cheaper in the UK than in the US. Once Amazon and other online retailers arrived this discrepancy became quickly apparent ??? with the unfortunate effect that many textbook prices in the UK rose rather significantly so publishers could protect their US margin
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