The Bank of Japan is widely expected to leave its policy rate unchanged to keep financial conditions accommodative but will debate whether to reduce its buying of government bonds at its two-day policy meeting from Thursday. Financial markets expect the Japanese central bank to reduce bond buying, currently set at around 6 trillion yen ($38 billion) a month, after its first interest rate hike in 17 years in March failed to reverse the yen’s weakening trend while sending long-term yields higher amid expectations of policy normalization. Due to the yen’s weakness, particularly against the U.S. d…