On this edition of Wall Street Week, Saira Malik, Nuveen CIO & Kristina Hooper, Invesco Chief Global Market Strategist on the week that was in the markets. Glenn Hubbard, Columbia School of Business Dean Emeritus and Professor of Finance and Economics takes us through the banking crisis and its impact on the economy. Sonja Gibbs, Head of Sustainable Finance at the Institute of International Finance discusses the cause and effect of zombie companies. And Former US Treasury Secretary Lawrence H. Summers explains why the economy is 'hard to read.' 

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