Twitter's Costolo on Outlook, Innovation, Growth

April 30 (Bloomberg) -- Twitter Inc. Chief Executive Officer Dick Costolo talks about the outlook for the social-media website, innovation, and the company's growth model. He speaks with Emily Chang on Bloomberg Television's "Market Makers." (Source: Bloomberg)
Will China Spell More Trouble for Global Economies?
30:28 - The Shanghai Composite Index extended its biggest two-month loss since 2008 after traders reduced holdings of shares purchased with borrowed money for an 11th day and an official factory gauge fell to the lowest reading in three years. China-focused hedge funds probably had their worst month in almost 16 years in August, with firms including Orchid Asia Group Management and APS Asset Management Pte. suffering losses from the nation’s stock market collapse.
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