Suppose that advanced automation sweeps through the US economy in the future, is this a threat or an opportunity? There have been numerous posts about a Basic Income on this forum, but how much would it cost? I propose a method for estimating the cost off a Basic Income below, and would like comments.
Suppose people have to rely on a Basic Income rather than being paid for work, how much would this cost? The link below tells us that total wages and salaries in the US is about $7.5 trillion dollars, 46% of the $16 trillion GDP. Wages and salaries do not include business and partnership profits, rents or dividends.
http://research.stlouisfed.org/fred2/series/WASCUR25% of US GDP is paid as state, federal and municipal taxes, see link below, first para.
http://en.wikipedia.org/wiki/Taxation_in_the_United_States#State_administrationsIf, in the future, technological unemployment reaches 50% and stays there, then nearly half of $7.5 trillion dollars of wages and salaries will be displaced by automation. Most of the unemployed will have been paid less when they were employed than those still in employment. I do not know the discrepancy, so I assume that the Basic Income will replace $3.5 trillion dollars, or 21% of GDP. This sum will have to be raised by a combination of Federal taxes, and when added to the existing 25% of GDP paid in taxes, will drive Federal taxes to 46% of GDP.
The Basic Income will replace existing welfare payments and age pension payments, about 8% of GDP according to the link below, third para, so the actual percentage of GDP paid in Federal taxes will be about 38%.
http://en.wikipedia.org/wiki/Social_Security_(United_States)
The last time the US saw taxes on this scale was during WW2. It is achievable, but will need a stiff dose of political will.
An alternative is that most jobs be on half time, with two workers sharing one job, each on half pay, the shortfall for each being largely made up by a Basic Income. In this case, the Basic Income will be less than if people relied entirely on the Basic Income.