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Where the euro went wrong: we offer an honest assessment from one leading German policy adviser, Joachim Bitterlich, who was there at the currency's birth.

Plus, patents in the balance: in the wake of a series of high-profile and highly expensive lawsuits between the world's top technology firms, we speak to an American patent expert. David Martin, chairman of the analysis firm M-Cam, tells us the legal instruments meant to protect innovation are actually holding it back.

One of the companies widely blamed for doing this is Acacia Research. It's a so-called patent 'troll', accused of fuelling patent litigation by buying up old patents and exploiting them on obscure legal grounds to extract money from tech firms. Its CEO Paul Ryan tells us his business is misrepresented and misunderstood.

(Image: Euro notes and coins. Credit: AP / Joerg Sarbach)