1, the domestic economy is improving, so buying government bonds makes less money, so everyone goes to the industrial stock market fund and sells government bonds, which leads to the price drop and the yield increase.

2. From the international point of view, the national economic prospect is not optimistic, the possibility of default is rising, and the national credit sovereignty is declining. Then foreign capital will sell the national debt and withdraw, just as the price will fall and the income will rise. Under the same circumstances, domestic investors and international consortia will make the same choice at different times.