Money Talks: Double bubble, is tech in trouble?

The rise and rise of American stockmarkets has faltered; what is behind the selloff in tech shares? Netflix has had a blockbuster year but faces rising costs and stiff competition. Its co-founder Reed Hastings argues the American streaming giant still has plenty of room to grow. And, what is wrong with the concept of “net zero” carbon emissions? Patrick Lane hosts. Please subscribe to The Economist for full access to print, digital and audio editions: www.economist.com/podcastoffer  

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