Willard Quine's early work was in the field of mathematical logic and set theory, the subject of half a dozen of his 23 books.

ECONOMIST: Willard Quine

In this study, we adopt the logic of upper echelons theory to expand understanding of how executive personality shapes organizational responses to radical change.

FORBES: New Study: Egomaniacs Make the Best Leaders

That said, the logic of the disposable-soma theory is profound.

ECONOMIST: Abolishing ageing

The logic behind this is derived from a theory called Ricardian equivalence, which holds that government spending cannot boost demand, since consumers cut their own expenditure in anticipation of higher taxes ahead.

ECONOMIST: Tightening economic policy