India, Feb. 2 -- From Japan to Brazil, elections could add yet more uncertainty this year to markets already whipped by U.S. policy gyrations and heightened geopolitical tension. Japan's election this coming weekend is among the most unpredictable in years, while polls across Latin America will test the region's rightward shift. Here are some of the year's most significant elections for markets: JAPAN Japan's snap election on February 8 could loosen fiscal purse-strings in the developed world's most indebted nation, on a debt-to-GDP basis. Prime Minister Sanae Takaichi wants to convert personal popularity into support for her expansionary fiscal policies and bolster her coalition government's position in parliament. Latest polls show her ...