The Economics and Politics of Financial Transactions Taxes and Wealth Taxes
Last month, the Washington Post reported that Joe Biden is considering including a financial transactions tax (FTT) as part of his campaign for the Democratic nomination. For those of us who have long advocated such a tax, this is very good news.
On this issue, Bernie Sanders has taken the lead among presidential candidates, including an FTT as part of his plan for free college tuition free. Several other candidates also support an FTT, but if the Democratic Party’s leading centrist candidate endorses the tax, it would mark a new degree of acceptance within the mainstream of political debate.
It may be somewhat surprising, but Senator Warren is not among those supporting an FTT. This is certainly not due to a reluctance to challenge the interests of the wealthy. Warren has proposed a wide variety of measures that would directly challenge the interests of the rich and powerful.
The most ambitious item on this agenda is a wealth tax. Her tax would tax wealth above $50 million at the rate of 2.0 percent a year and wealth above $1 billion at the rate of 3.0 percent a year. (Sanders has an even larger wealth tax.) While there are good reasons for wanting to tax the very rich, an FTT is almost certainly a better economic policy and would have much better political prospects.
We can see the economics of an FTT are superior when we consider the motivation for taxation by the federal government. As the proponents of Modern Monetary Theory remind us, the federal government doesn’t need revenue to spend, it prints money. The purpose of taxation by the federal government is to reduce consumption, so as to create the economic space for spending. The argument is that if the government spent a large amount of money, and didn’t have any taxes, it is likely to create too much demand in the economy, thereby generating inflation.
To see this point, imagine that the federal government was to spend another $1 trillion next year on Green New Deal policies (a bit more than 20 percent of current federal spending), such as clean energy and mass transit subsidies. If there were no increase in taxes, we would expect to see a huge surge in demand in the economy, likely leading to inflation. (Assume that the Federal Reserve Board simply prints more money so that interest rates are little changed.)
Now suppose we had another big Republican-style tax cut where we handed $1 trillion annually to the very richest people in the country. Also assume that we have no offsetting reduction in spending or increase in other taxes.
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