We’re back from our summer break with an enticing idea: what would happen if we only worked four days a week? Far from spelling economic disaster, the Portuguese economist Pedro Gomes argues it would boost the economy and our well-being at the same time. We chat to him about his excellent new book, ‘Friday Is The New Saturday: How A Four-Day Week Will Save The Economy’. We’re also talking about naughty European banks, a lucky Neopolitan scratchcard, and — of course! — the return of ABBA.