Facebook group Wavey Garms is a place for ‘cool’ people to sell their second-hand designer clothing – but not everyone gets accepted. With over 1,000 membership requests every week, what’s drawing the numbers?

Two current chart-topping hits – Suit & Tie and Thrift Shop – seem to present opposing views on consumer behaviour and social trends, but are they more similar than they appear? Anthropologist Krystal D'Costa explains.

A new $700 billion opportunity has emerged from the unlikeliest of places: the bin. As sustainability goes mainstream, smart businesses are adding value to their brands by making sustainability cool, cost-effective and convenient.

As taxes go up in Japan, consumers are developing a new taste for the old. As a result, the flea market is jumping. But not as per tradition; now the concept has shrunk to fit your pocket. The second-hand marketplace app Mercari is attracting smartphone shoppers, could it overtake eBay?

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?

The used goods market in India is expected to grow to $18.4 billion in 2015. Who’s driving it? Savvy young married couples in urban areas – they’re buying anything from books to cars online. But it’s also this group that are selling. How is a desire to de-clutter fuelling India’s second-hand market?

We no longer crave the new. Half of online shoppers in the UK visit eBay each month and the site's fashion category attracts 4.5 million people. Luxury goods re-seller Vestiaire Collective has discovered that British women are leading the way for buying and selling pre-loved clothes online.

‘Til death us do part’ is usually reserved for weddings. But as sustainability becomes a bigger concern, it could be applied to our prized possessions, from cashmere jumpers to iPhones. But how achievable is this in a world where acquiring and upgrading are the status quo?