On this edition of Wall Street Week, Kristina Hooper, Invesco Chief Global Market Strategist and Tracy Alloway, co-host of the Odd Lots podcast, wrap up a volatile week in the markets. Steve Rattner, Willett Advisors Chairman & CEO dives into why he's being cautious with equities and Former US Treasury Secretary Lawrence H. Summers weighs in on the UK's controversial new tax plan. 

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