Paul Solman: More excerpts today from an interview I did with economist Paul Samuelson nearly a decade ago. Today, his thoughts on whether economics is a science and where math fits in the discipline.

Economics isn’t just a number’s game. Human irrationality is so intrinsically tied up in the human need to rationalize that financial decisions are often made when our conscious brains are held for ...

Today’s digital economy is blurring the boundaries between computer science and economics — in Silicon Valley, on Wall Street, and increasingly on university campuses. Yale undergraduates interested ...