Because there is a glut of idle money right now as the first world continues to unwind its debt positions from the financial crisis.<p>Investors are parking their cash in safe assets in droves (government bonds and real estate), so there&#x27;s basically no safe assets left that will earn a return (perhaps other than real estate speculation) - investors then go on to hunt for riskier investments in emerging markets that will at least gain something, at risk of losing the principal if the government defaults.