Group 1 - The core viewpoint is that Japan's central bank must exercise caution regarding interest rate hikes due to the potential negative impact of U.S. tariffs on the fragile economy [1][2] - Saito Ken emphasizes that the Bank of Japan should act carefully to avoid cooling the economy, which is currently trying to recover from decades of low growth and inflation [2][3] - The Bank of Japan ended a decade-long stimulus program last year and raised interest rates to 0.5% in January, but concerns about inflation remain [3] Group 2 - Political uncertainty stemming from U.S. tariffs is overshadowing Japan's economic outlook [4] - Saito Ken calls for the resignation of Prime Minister Kishida after the ruling coalition's poor performance in the recent Senate elections, which has weakened their control over the legislature [5][6] - The ruling Liberal Democratic Party (LDP) needs to seek a stable coalition government under new leadership to maintain consistent policies [6]