Bigger isn’t better for the world’s gold miners, who are increasingly making “bite-sized” developments that carry less risk of budget disasters and fewer of the political and environmental disputes that have derailed mega-mines in recent years. Newmont Mining (NEM.N) is a prime example of how companies are responding to bleak industry conditions by building mines on a smaller scale than in the past, with the price of gold down almost 40 percent from its peak in 2011 and banks avoiding the sector.