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New York bureau chief Heidi Moore and Felix Salmon of Reuters wrap up this week's biggest business stories.

On Federal Reserve chairman Ben Bernanke's speech in Jackson Hole, Wy., today:

Felix Salmon: He was talking about quantitative easing and talking about Milton Friedman... It was quite a defensive speech. He was basically saying 'We're doing OK, and we'll do more of it."

Heidi Moore: He was saying that the Fed could take unusual measures. There was a note of preparation for threat in that. And he also acknowledged that the Fed is overburdened right now. They have bought so much out of the market -- so many bonds and things like that -- that they might be a threat of affecting investor confidence, that the Fed is too big a player in the stock market right now.

For more analysis, listen to the full audio.

Follow Kai Ryssdal at @kairyssdal