I'm referring to the long term policy of tax cuts, starting in the 1980s. The data set you link to has real median income (after inflation) going up by about 40% since 1975, under 1% per year.
That's not zero, but compared to GDP, the stock market, and other measures of overall economic health -- which have gone up by an order of magnitude or more -- the median is practically immobile.
And for much of that time, it was even more immobile. The median was $31k in 1997, and was $31k in 2014. It bottomed out at $30k in 2012; it has been rising since but that was almost two decades of complete stagnation -- while GDP rose and stock markets climbed.
That's not zero, but compared to GDP, the stock market, and other measures of overall economic health -- which have gone up by an order of magnitude or more -- the median is practically immobile.
And for much of that time, it was even more immobile. The median was $31k in 1997, and was $31k in 2014. It bottomed out at $30k in 2012; it has been rising since but that was almost two decades of complete stagnation -- while GDP rose and stock markets climbed.