If these higher marginal tax rates spur economic growth, pragmatists such as myself will immediately jump on board, and raise marginal taxes in our countries.
wc, you know perfectly well that "spurring economic growth" as sole criterion of choice of policy is one of the things most of us here reject. The point of progressive taxation is not to spur economic growth but to reduce inequality and increase social cohesiveness.
but I think it would be horrible to not dedicate ourselves to improving the lot of mankind worldwide. and historically that has not happened without growth, and I don't think it will in future. I view dedicating oneself to no growth, which I know is literally the goal of what a thought were a few (no pun intended) on the site, will condemn many in the world to a perpetual life of poverty and misery.
Can you point to a period in history where economic growth has been zero, and people have come out of poverty around the world?
More to the point, in the last two decades the more recent points of growth have been achieved without increase in welfare for most, in the industrialized world. The way our society is set up, growth only goes to the pockets of a small class. If we want to increase the general welfare of the population, growth in our current system has shown to be unproductive. Un roi sans divertissement est un homme plein de misères
