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.

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 ...

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 ...