Shares retreated in Asia on Wednesday after Japan reported its worst monthly decline in exports in three years, putting pressure on the economy as growth slows following a sales tax hike. Asian Markets Japan’s Nikkei 225 index NIK, -0.62% declined 0.8% after customs data showed the country’s exports falling 9.2% in October. Hong Kong’s Hang Seng HSI, -0.75% dropped […]