For the world's worst-performing economies, no good will come from New Year's resolutions to do better. For many, 2016 will only bring more disappointment, say economists surveyed by Bloomberg. Oil-rich Venezuela will contract by 3.3 percent this year, the worst forecast of any of the 93 countries in our analysis, followed by junk-rated Brazil, debt-laden Greece and commodities-ravaged Russia. Below are the bottom 10: For the world's worst-performing ........