Stocks Off Sharply as Market Upheaval Grows

I'm always annoyed at the invocation of the logical fallacy that the source of an argument renders it inadmissible. Not only is it a fallacy, but it's typically (but not in your case, especially since you're offering a specific criticism!) invoked by someone simply assuming that their own source is sacrosanct. That said...

You may have a point, but it's not fatal to my argument. It maybe renders mine less strong.

Why would you think that women entering the workforce must be treated exogenously? I think it's proper to consider this part of the overall improvement.

For the years shown in my chart, the shift of women into the workforce was well underway. Even in 1950, women accounted for about 30% of the workforce [1]. So by my thumbnail estimation, the increase from ~1965 (when my original chart began) on is nowhere near large enough to account for the effect I showed.

Further, women entering the workforce is central to my second point about it finding oneself in the lower income tiers is significantly a personal choice. If the rest of the world has passed you by, it's still your own choices that are holding your back.

Without making any moral claims at all, purely based on mathematics, the two-income family has advantages beyond simply having double the income. As I alluded to, by sharing tasks and specializing within the family (e.g., I cook while my wife does the laundry), we're able to lower total expenses because we save enough time between us that more can be done without outsourcing work. It also offers better risk management. One partner can pursue a riskier but potentially more lucrative job, without fearing losing the family's only income. I have several friends doing this kind of thing, with one spouse running a small business while the other has a corporate job (including the medical care it implies). And if one spouse does lose their income, the consequences are much less dire, as there's some semblance of a buffer protecting them.

Thus, even aside from the simple doubling of family income as women entered the workplace, they shifted the picture so that more wealth could be created in total by protecting against greater risks.

But this is all endogenous to the question. Through their own means (in many cases, that being the decision of a woman to enter the workforce), Americans have transformed their demographics such that incomes have shifted strongly toward the higher end of the scale.

[1] http://www.bls.gov/opub/mlr/2002/05/art2full.pdf page 2 (PDF warning)

EDIT: I'd stupidly left the parens in para 4 empty; went back to fill them in.

    I occasionally get asked for advice by students. Biggest one: resist following scripts which evolved to serve a world which no longer exists

Most of the time, an unqualified "deflation" means "a trend of declining retail prices, as measured by non-adjusted currency." And I know why economists in the employ of monetary authorities hate it. It means that there was a missed opportunity for that authority to steal more from the economy by inflating the money supply at a faster rate.

Ordinary price deflation is beneficial [for the working class]. It allows you to buy more stuff with less of your own labor. You can buy a computer today that is vastly more capable than one from 1995, at maybe 20% the cost, as measured by your own labor. You might have spent two weeks of gross wages back then. Now, you might spend 2 days of your work.

Working people usually spend at least 2000 hours of their own labor per year, for a span of about 50 years. They have to budget that 100000 hours out for everything they will ever want or need. They can't get more stuff for free just by printing off a few more bills or raising taxes. So everybody loves it when they can all get more stuff with the same amount of work, and everybody hates it when they have to work twice as hard to only get the same amount of stuff their parents had.

The economy hasn't just been in the toilet since the 80s. Real wages for working class families have been in decline since 1970. And the cause (in my opinion) was economists who pretended that macroeconomics was something other than a simple summation of many thousands of individual microeconomic models. They pretended that "government" was some magical economic actor that could defy the laws of microeconomics, by gradually moving numbers from the "truth" column of the ledger into "lies", from "lies" to "damned lies", and finally putting them into "statistics", where they could safely be explained away, hidden in margins for error, or redefined into nothing.

This is what monetary authorities and their pet macroeconomists have given us since 1970. The ordinary march of human progress--which has steadily given us an approximate annualized return of 1.5% per year, failing only temporarily due to wars, plagues, or other catastrophes--now goes directly into an annual inflation of the money supply of at least 1.5%. This has transformed global commerce from an ever-rising tide that floats all boats, into one where only the yachts float higher as the canoes, coracles, skiffs, and dinghies get swamped.

You can and should apply the principles of personal finance to national economies. You may learn something about macroeconomics that you didn't suspect before.