This week on Taking Stock Emmet Oliver looks at Tesla's declining sales in some countries and asks how much an owner's personality can affect sales of their products when he talks to Gretchen Larsen, Professor in Marketing at Durham University Business School.

Gold is going gang busters in the era of tariffs and Emmet talks to Russ Mould of AJ Bell about why Gold will never die.

Plus, Emmet talks to Professor Steven Barnett of the University of Westminster about the BBC World Service and why it may be more important than ever.