Stock market volatility is back. Mohamed El-Erian says that may not be a bad thing.

Mohamed A. El-Erian, chief economic adviser at Allianz, analyzes the recent chaos in the stock market and what it means for the country's larger economic picture. El-Erian also discusses the tax cut, running a responsible deficit and if the recent Fed Chair change contributed to the downturn. Learn more about your ad choices. Visit megaphone.fm/adchoices