According to psychologist Dr. Paul Becker, sunlight, or the lack thereof, is the key to the winter blues.

心理学家保罗·贝克尔博士认为，阳光的充足与否是造成冬天忧伤情绪的关键。

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But they were his best, his son Paul Becker, also a violin maker, says.

WSJ: Master of Chicago Family's Violin-Making Tradition

Of course, their approach to monetary policy reflects the precepts of the Friedman-Becker (also Paul Volcker) monetarist approach.

FORBES: Modern Central Banking and the BOJ

Paul Samuelson, one of the younger winners, and Mr Becker, who was a friend of Griliches, want the committee to take old age explicitly into account.

ECONOMIST: Nobel prize in economics