As coronavirus infections in Japan spark increasing alarm, the government has left investors guessing on how much money it will pump into the economy through a third extra budget.

This presents a huge challenge for the bond market trying to gauge how much additional debt will be issued in the current fiscal year through March, along with which maturities will be in focus and the likely impact on yields.

Primary dealers told the government that the market has the capacity to absorb more 20- and 40-year bonds, an official at the Finance Ministry said after a meeting on Thursday. Here are some of the main scenarios seen by interest-rate strategists in Tokyo: