The London-listed miner Anglo American has agreed to merge with its Canadian rival Teck Resources, in a deal that will create a $53bn (£39bn) global copper group but raises the prospect of job cuts.The merger, the biggest mining tie-up in years, would form one of the biggest copper producers in the world, the companies said on Monday.Anglo American fended off a series of takeover attempts by its larger rival BHP last year, pushing it to radically restructure its business.The chief executive of Anglo, Duncan ...