Earlier
JohnfrmClevelan and I got into a discussion about "productive" investment vs "non-productive" investment. Along that line, he pointed out that "Buying stocks secondhand - not real investment. Buying an IPO - real investment." I agree, and to follow up on that point in connection with "leakage" and, as I promised, "the detrimental impact of excessive wealth accumulation on the economy, as this constitutes huge leakage, and a genuine risk to the continued flow of income." Along the way, I am going to touch on "Capital Gains", and more specifically, the special tax treatment that capital gains get (that I think is wholly unjustified and warps the entire tax process).
First, "why is the stock market not part of the productive economy?" With the exception of IPOs (initial public offerings), and similar activities which I will aggregate under that term, most stocks are purchased second hand - hence the "stock market". Both IPOs and corporate bond issuances, however,
inject money into a productive venture - that is, one is
giving the company money toward initiating or expanding their business. Stock represents an ownership interest and bonds represent a loan. Buying stock on an exchange, on the other hand (or various derivatives, like futures, takes and puts, and mutual funds) is "net neutral" for the business (we'll discuss things like "stock buybacks" later). The business gets nothing directly out of it, or makes anything with it. It merely represents a measure of what "the market" thinks a fractional share is worth. Other financial markets similarly do not contribute to the "production" economy directly - things like bitcoins.
They do, however, represent "investments", in that one buys them expecting that they will increase in value or provide returns in the form of "dividends" or "yields". Many of us directly or indirectly make such investments through 401(k)s, pension plans, or mutual funds. In 2025, about 62% of U.S. adults, or roughly 162 million people, "own" stock. This includes both direct stock ownership and ownership through retirement accounts like 401(k)s and IRAs (
Gallup). The distribution of such ownership, however, is uneven. "The percentage owning stock is highest among adults in households earning $100,000 or more (87%)"; but only "28% among those in households earning less than $50,000". (More on that later.) Because secondhand purchases of stocks do not contribute directly to production, parking income in such investments represents a drain of potential productive investment from the flow of commerce - leakage.
From a tax perspective, buying stocks is a net-neutral tax activity - the presumption is it is an exchange of value (money) for an equal value (stock) when the exchange occurs (not always an accurate presumption, but not relevant here). But, one expects that investment to result in income.
That income is taxed when a "taxable event" occurs. Thus "dividends" and "interest" are taxable when paid out, but "yield" only occurs when the stock is sold. If it is sold for more than it was purchased for (its basis), that is a "capital gain". Until stock is sold, its increase or decrease in value is only a "paper" gain. (Paying taxes, as
JohnfrmClevelan pointed out earlier, is also a "leakage" from the flow of commerce. It only becomes an "injection" when the government pays that money out, in the forms of purchases from the productive economy or payouts to citizens in the forms of employment checks, Social Security benefits, and various safety net programs.)
Here's the real rub: the ultra-wealthy "park" a lot of their excess wealth in investments and overseas, representing a huge "leak" from commerce, the economy and society in general. Moreover, much of it is never taxed. On average, the wealthy pay a lower percentage of income toward taxes than others; the result of a lot of "special" treatments. For example, there is a cap on FICA taxes - Social Security, primarily - meaning above that level no tax is paid; "capital gains" are taxed at a lower level than "ordinary income" (the wealthy derive more of their income this way than the average taxpayer); and much inheritance("Gift and Estate" tax) is
never taxed at all, through personal exemptions and special treatment. (The new bill moving through Congress would eliminate the federal inheritance tax altogether, and reduce the income tax rates permanently.) For example, the Annual Gift Tax Exclusion is presently $19,000.00 per person. Married couples can effectively double this amount by "gift splitting" to $38,000.00 and doubling it again if the recipient is married by gifting the spouse as well, making it $76,000/year of untaxed income for the recipient couple. The lifetime exclusion from the Gift and Estate tax is presently $13.99 million
per individual (doubled for a married couple).