There are high dividends, such as Verizon and AT, but stock prices continue to fall. Please tell me whether they should be purchased because they are undervalued, and whether falling stock prices reduce asset value and should be avoided.

EDV, TLT, and VGLT have been quite cheap over the past 10 years, but considering that a recession will come in the future, what do you think of the strategy of steadily buying more every time it falls from now on?