Quote from tomdavis:
1. The US did not prosper in the 1950s-1960s because of high taxes, but rather because of the aftermath of WWII. The period of 1945-1965 established the US as the leading manufacturing country in the world, not because of our manufacturing prowess, but rather because of our military might. At the end of WWII, the US had 5% of the world's population and almost 70% of the world's intact manufacturing and transportation infrastructure because most of Europe and Asia had been bombed to ashes during the war. For about 20 years, the US had the highest manufacturing price/wage structure in the world, from which the American middle class benefited greatly. By the mid-1960s, the rest of the world had rebuilt and the US had to actually compete against countries like Japan and Germany. Our market dominance began to erode in the 1970s, and the erosion increased in velocity during the 1980-90s as India and China entered the world markets. When hundreds of millions of people enter the global manufacturing workforce and are willing to work for fifty cents an hour, wages are going to fall, manufacturing is going migrate, and there's nothing anybody can do to stop it. It's inevitable that the economies of China and India will overtake the US because China's population is 4X the US and India is 3X. It's simple math, the economic forces of gravity in action.
2. Though once there were "published" tax rates of 70-91%, very few ever paid taxes at those rates. Back then, there was something called "leveraged non-recourse tax shelters" that wealthy people used to eliminate as much as two-thirds of their tax burden. In addition, most very wealthy individuals kept a large percentage of their wealth offshore (e.g. Switzerland) where it was hidden from the IRS. A study by the IRS in 2003 showed that the richest people in the country paid about 23% of their income in federal taxes during those high tax rate periods (1950s-1960s). In the 1960s, Kennedy lowered tax rates; then Reagan further lowered the rates and also eliminated most tax shelters. In recent years, the tax benefits of offshore banking have been all but been eliminated.
3. People often argue about taxing the rich, but they seldom want to define what rich means. Everyone agrees that Warren Buffet is rich, but is a small-business owner who makes $500k per year really rich? I'm amused by the number of people who claim that the high tax rates of the 1950s kicked in at $200k per year, and therefore $200k per year defines rich. They don't stop to consider that $200k in 1955 is the equivalent of about $3 million in today's dollars. (Back in the 1950s you could buy a house in Beverly Hills for $80k or a new Cadillac for $3k.) So the question remains: What does "rich" mean?