The US central bank has left interest rates unchanged this month but says they will be cut three times before the end of the year. We look into the details. The world's most expensive drug will soon be available in the US at a price of $4.25m. We hear about the rare disease it treats and the high cost of developing medicine to battle it. Sam Fenwick discusses these and more business stories with two guests on opposite sides of the world: Kristina Hooper, Chief Global Market Strategist at New York-based Invesco, and Yoko Ishikura, Professor Emeritus at Hitotsubashi University. (Picture: US Federal Reserve Board Chairman Jerome Powell. Picture credit: SHAWN THEW/EPA-EFE/REX/Shutterstock.)