The basic prescription for preventing deflation is straightforward, at least in principle: Use monetary and fiscal policy as needed to support aggregate spending, in a manner as nearly consistent as possible with full utilization of economic resources and low and stable inflation. In other words, the best way to get out of trouble is not to get into it in the first place.
Ben Bernanke - Problems - Economy - Finance

The sources of deflation are not a mystery. Deflation is in almost all cases a side effect of a collapse of aggregate demand.. a drop in spending so severe that producers must cut prices on an ongoing basis in order to find buyers.
Ben Bernanke - Finance - Economy - Products

Over the years, the U.S. economy has shown a remarkable ability to absorb shocks of all kinds, to recover, and to continue to grow. Flexible and efficient markets for labor and capital, an entrepreneurial tradition, and a general willingness to tolerate and even embrace technological and economic change all contribute to this resiliency.
Ben Bernanke - Change - Economy - Entrepreneurs - Technology

There’s no denying that a collapse in stock prices today would pose serious macroeconomic challenges for the United States. Consumer spending would slow, and the U.S. economy would become less of a magnet for foreign investors. Economic growth, which in any case has recently been at unsustainable levels, would decline somewhat. History proves, however, that a smart central bank can protect the economy and the financial sector from the nastier side effects of a stock market collapse.
Ben Bernanke - Problems - Economy - Finance - Stock Market

The economic repercussions of a stock market crash depend less on the severity of the crash itself than on the response of economic policymakers, particularly central bankers.
Ben Bernanke - Problems - Economy - Stock Market

A collapse in U.S. stock prices certainly would cause a lot of white knuckles on Wall Street. But what effect would it have on the broader U.S. economy? If Wall Street crashes, does Main Street follow? Not necessarily.
Ben Bernanke - Problems - Economy - Stock Market