I grew up in a very conservative environment and even now consider myself libertarian.  Even so, a progressive tax plus a universal basic income just seem like the right way to put a floor on income on which people can stand and better themselves.  The sim seemed a little abstracted from normal interactions, is there some equivalent simulation which shows what happens as we vary the progressivity of the tax code, and also vary the amount of a basic income?<p>Other questions: would it make sense to use the level of a basic income to stimulate the economy, rather than the fiscal stimulus to banks?  Does a basic income or a progressive tax put a max on the wealthys&#x27; income in some non-obvious way, or just reduce it?   Is there an economist who has applied control theory (i.e. the Kalman filter) to economics?