otnihoithiu
I'm not sure how it could have played out differently. Women have always, always worked to support themselves and their families. But the invention of household labor saving devices freed up enormous amounts of time that would have been spent primarily in the household. Of course those women would look for additional opportunities to support their families. It's the same story as men moving from farm labor to factory labor as farm labor became increasingly mechanized.
These three items are well known to have costs that have risen above inflation for decades.
I offer an alternative explanation: these three items are so vital to people that they will sacrifice spending in other areas to support these costs. All of the unmeasured inflation of the past decades is represented solely in these items.
Inflation increases the value of assets. Wealthy people own assets and poor people consume goods to survive. As a result, inflation increases the gap between the wealthy and the poor.
The only realistic way to reduce the wealth gap is to accept deflationary periods. This would also improve the savings rate and reduce debt.
I understand that modern theories believe deflation to be the end of days. I attribute that belief to the fact that a deflationary period was observed during the great depression, and has been believed to be a cause rather than an effect. I frankly disagree with that viewpoint.
I believe that the government has a vested interest in ensuring inflation because the government is a debtor. A protracted period of deflation would bankrupt the government.
People cite the post-war period as one of a smaller wealth gap, but the primary reason for that is that there had been a ten year period of deflation just proceeding it.