Tax Myths of Warrenomics
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Current measures of wealth/income inequality overstate lifetime spending inequality due to more equal distribution of human wealth & progressive fiscal policies. @LaurenceKotlikoff @WSJ.
Laurence Kotlikoff, "Tax Myths of Warrenomics,"Wall Street Journal, October 17, 2019, https://www.wsj.com/articles/tax-myths-of-warrenomics-11571351806
To quote from paper, “…is that human wealth is more equally distributed than is net wealth. The top 1 percent of this cohort account for 13.7 percent of the cohort’s human wealth, which is roughly a third of its net wealth share. The bottom 20 percent have 4.9 percent of total-cohort human wealth - roughly eight times its net wealth share. The other reason for lower spending than wealth inequality is the fiscal system. The average remaining lifetime net tax rate of the top 1 percent of 40 year olds is 34.5 percent. It’s -46.6 percent among those in the lowest quintile. Which factor - greater equality in the distribution of human wealth or our progressive fiscal system - makes the distribution of remaining lifetime spending so much more equal than that of net wealth? The answer depends. With no fiscal system, the richest 1 percent of 40-49 year olds would account for 17.9 percent of RLS (their resource share), which is far below their 34.1 percent of net wealth and close to their 14.5 percent of RLS. For the poorest 20 percent, with just 0.6 percent of total cohort net wealth, their share of cohort pre-fiscal resources is 4.0 percent. 11 Hence, the more equal distribution of human wealth and fiscal policy play a roughly equal role in raising the RLS share of the poorest quintile...”
Steve’s note in response: So my read of the reports language is “its” here refers to the cohorts lifetime spending going forward. The way I read it was they are talking about sort of a propensity to consume relative to wealth, the older rich will “underconsume” relative to their wealth and pass wealth along to their kids, whereas the poor will “overconsume” relative to their wealth because of transfer payments. So wealth measures overstate consumption inequality.




Note Paper and initial writeup are attached.
Ed Comment:Please send me this. (you sent me the paper)…. PS. I don’t understand this line, in particular, the word “its”. Surely, the top 1% will spend a lot more than 2x the bottom 20% (ie 14.5/7.3) “Among 40-year-olds, the richest 1% own 34.1% of their cohort’s net wealth, but account for only 14.5% of its remaining lifetime spending. The poorest 20% own only 0.6% of the cohort’s wealth, but are expected to do 7.3% of its spending.”
, Kotlikoff and Auerbach push back at Saez/Zucman:"...Economists Emmanuel Saez and Gabriel Zucman……wrong, and three huge mistakes underlie their analysis. The biggest mistake is to focus on gross, not net, taxes. They ignore transfer payments, like Social Security, which are disproportionately paid to the poor...Messrs. Saez and Zucman’ssecond mistake is measuring progressivity on a one-year rather than a remaining-lifetime basis. That ignores the fiscal system’s double taxation: Income earned, taxed and saved this year will be subject to future taxation on interest, dividends and capital gains. This omission disproportionately understates taxes for the rich, who save at a higher rate. The current-year focus also understates benefits paid to the poor, since future benefits are a bigger share of their resources. Theirthird mistake is failing to adjust for age.The old have paid most of their lifetime taxes, which makes them now look like tax cheats, particularly those who saved out of previously highly taxed labor income. With changing demographics, this problem will deeply confuse tax progressivity comparisons over time... the net tax rate facing middle age Americans rises rapidly with their resources—from negative 46.4% for the bottom 20% to positive 34.5% for the top 1%...."