| http://www.w3.org/ns/prov#value | - easonable measure of whether we were all getting richer, or not.Then a few years ago, as part of the drive to persuade us that London is the most important financial centre in the world (forget it, it is obviously New York), the London Stock Exchange made an effort to entice large foreign mining companies to list their shares here.They did in droves -- utterly vast outfits with odd names such as Ka
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