Currencies are crashing across the globe. The Brazilian real has lost 28% against the dollar just this year. The Turkish lira 20%, Colombian peso 23% and the Indonesian rupiah is down 11% versus the dollar in 2015. On the face of it, these are alarming moves. Yet, a lower currency value is something that some countries actually want. China, for instance, devalued the yuan by 2% last month, its largest move in two decades. Experts believe the prime motivation was to make the country's exports more attractive to international buyers. Certainly, a weak currency helps boost exports, which can ultimately lift the economy. ... (full story)