Japanese stocks rebounded as concerns over the long-term impact of Friday's earthquake and tsunami on Japan's economy ease. The Nikkei 225 index gained 6 per cent in early trading yesterday. On Monday and Tuesday, the index dropped more than 16 per cent, its biggest two-day fall in 23 years. Investors are optimistic about a recovery in the economy despite reports of another fire at the Fukushima Daiichi nuclear plant. Stocks of financial companies, exporters and car companies like Toyota and Nissan Motors are amongst the big winners.