Other developments werethe pointedarchandvault, andthe flyingbuttress, which allowedconstruction of moreelegant, higher, andapparentlylighterstructures.
Another former U.K. rate-setter and arch-dove, David Blanchflower, has pointed out that even if nominal-GDP targeting was a good idea in theory, it is a bad idea in practice because nominal GDP is hard to measure and prone to large revisions.