Time to dig deep? Big miners face a big problem

Most industrial commodities are oversupplied, with the feared slowdown in China only deepening the miners’ woesHow severe is the crisis in the world of over-borrowed big miners? Here’s an illustration. Anglo-American, a company founded in 1917, employing 148,000 people around the world and generating sales last year of almost £20bn, now has a stock market value of £8.7bn.By contrast, Next, the clothing chain with a £4bn turnover, is worth £11bn. Even Whitbread