Full interview with Wharton's Jeremy Siegel on Fed's effect on inflation, markets

Investors stomached a lot of volatility this week as signs of rising inflation showed up in economic data. Even after finishing higher on Thursday, stocks are on track for hefty losses for the week. Jeremy Siegel, finance professor at the University of Pennsylvania's Wharton School, joined "Squawk Box" on Friday to discuss what he's seeing in the markets.