To use Mr Summers's analogy, Chile has reacted to global capital markets both by lengthening its runway and by banning some jet landings.

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The authors effectively use the boiling frog analogy to explain how union power has grown over the years, and their analogy is apt.

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What Washington State has enshrined into law is a very questionable analogy to open adoption: just as adopted children are increasingly granted the right to access information about their birth parent or parents so too should donor offspring have the right to identifying information about the donor.

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To make a basketball analogy, he has turned a run-and-gun team into one that loves half-court offense.

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It seems a closer analogy than football to marketing reality, but this too has its limitations.

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By analogy, as power is dispersed from Parliament to other elected and non-elected organisations, a way has to be found to include people of ordinary means.

ECONOMIST: Public appointments