主播大秀

Janet Yellen announces quantitative easing is to end in October. She also sounds a note of warning about Europe's extremely slow economic growth and low inflation. Our business correspondent Andrew Walker explains. We profile Jack Ma, the colourful and charismatic founder of Ali Baba, the Chinese online retailer that's bigger than Ebay and Amazon combined.
Adriene Hill from our US sister programme Marketplace gives us the lowdown on big data in education, while Peggy Lui from JUCCCE explains why she's so passionate about the environment. Plus Michelle Fleury hits the grocery store to try out BuyPartisan, the new app that lets you know the political affiliations of the people behind the products you're buying.