China’s appetite for foreign luxury has created a resale market at home, with consignment growing 30% faster than luxury overall in 2013. But with 80% of items in second-hand boutiques being fakes, why do people trust Secoo's resale platform for designer handbags and watches?

When Brazil’s economy boomed and its millionaires multiplied, it looked, to luxury brands, like their next big market. But for the big names who have moved in, results have been mixed. Now they’re learning to adapt to the habits that make Brazilian consumers unique.

Where does your brand sit on the sliding scale of broad to niche, blockbuster to long tail, collective to individual? Chances are that if it sits anywhere in between your profit margins are suffering.

Since its launch in 1919 – as nothing more than a mishmash of market stalls – Tesco has grown to become the second most profitable retailer in the world. But now, the supermarket is losing a million customer visits a week. And with sales dropping, what's Tesco doing wrong?