Group 1 - Japanese Prime Minister Shigeru Ishiba's resignation is expected to increase volatility in the Japanese bond market and stock market, with a focus on potential successors and the possibility of reviving "Abenomics" policies [1][2] - Japan's outstanding debt is nearing 250% of GDP, the highest among developed countries, with the next fiscal year's budget request hitting a record high for the third consecutive year [2][5] - The resignation of Ishiba may lead to further increases in long-term bond yields, which have already faced upward pressure due to fiscal uncertainty [2][5] Group 2 - The 30-year Japanese government bond yield recently surged to an unprecedented 3.285%, while the 20-year yield reached 2.69%, the highest since 1999, indicating a significant rise in borrowing costs for the government, businesses, and citizens [2][5] - The recent political landscape has shifted, with non-mainstream parties advocating for tax cuts and increased spending gaining more seats, leading to speculation about Ishiba's resignation [5][6] - Among the potential successors, Sanae Takaichi advocates for maintaining ultra-low interest rates to support economic recovery, which could be favorable for the stock market [6]