In times of economic crunch, where should you store your savings? Perhaps you are tempted by the rise in value of bitcoin. But can it last? And what is bitcoin anyway? A currency or an asset?

Garrick Hileman, Research fellow at the Cambridge centre for alternative finance, tells the BBC's Manuela Saragosa what to make of the cryptocurrency.

British business couple Baroness Michelle Mone and Doug Barrowman tell Ed Butler about their property development where units will be sold for bitcoin.

And Martin Arnold, an analyst at London investment firm ETF Securities, weighs it up against other assets, like the safe haven of gold.

(Picture: bars of gold. Credit: Getty.)