We're diving into Macroeconomics with a look at Gross Domestic Product and how it counts everything in the economy - from output, to spending and the income earned. And Betsey Stevenson and Justin Wolfers also show you how even the great yardstick of GDP ignores some vital elements of society.Co-host: Nastaran Tavakoli-Far. Editor: Alastair Elphick. A Modulated Media production. Summary GDP - Measuring what we do