The capital gains rate is lower because the way capital gains are calculated causes nominal price increases due to inflation to be counted as an increase in the

The capital gains rate is lower because the way capital gains are calculated causes nominal price increases due to inflation to be counted as an increase in the value of the asset. This is a pretty dumb way to do this -- just calculate the capital gain in inflation-adjusted dollars instead -- but the current system isn't inherently to the advantage of capital gains. For long-held low-risk assets it typically goes the other way because so much of the "gain" is only on paper but gets taxed anyway. And short-term capital gains are taxed at a higher rate.