In this video from Tuesday's edition of Investor Beat, host Chris Hill and Motley Fool analysts Mike Olsen and Morgan Housel dig into the top business and investing stories from the market today.

Janet Yellen made her first appearance before Congress as Federal Reserve chief, during which she stressed a "great continuity" in strategy as she takes over for Ben Bernanke. Wall Street was obviously pleased with what it heard, with the Dow, Nasdaq, and S&P 500 all up today. In the lead story on today's Investor Beat, the guys discuss the new Fed chief, what the Fed will look like under her administration, and how Fed chiefs have historically proved their mettle in times of crisis.

Chris Hill, Michael Olsen, CFA, Morgan Housel, and The Motley Fool have no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.