I've thought about this a lot, though if you google around you'll find people who dispute this claim. Still, it makes sense to me.
If you have single income households, and all of a sudden everyone's a double income households, you're not any better off. You'll get inflation, especially in housing. People will point out that stay at home moms weren't THAT pervasive, even decades ago (not as pervasive as us younglins would think), and that may be correct, but double professionals as a common thing is still more recent. We're making some (slow) progress toward wage equity on top of all of it too. That's a good thing, but it doesn't change much when people are bidding against each other.
But all things are not equal: It's not as simple as "back then it was 1 income families against 1 income families and now its 2 vs 2".
Not at all! Now you have 1 income families, 2 income families, 2 income families with no kids, 2 income families where both are software engineers, etc. All of these always existed in some form, but now it's very visible.
If my partner and I (we're DINKs, both in software engineering and highly successful) go to bid on a home, and a single working parent with a partner who stay at home, and 3 kids, try to outbid us... Well, let's hope for them that the single earner is a world famous neurosurgeon, else they're not getting that home.
If you have single income households, and all of a sudden everyone's a double income households, you're not any better off. You'll get inflation, especially in housing. People will point out that stay at home moms weren't THAT pervasive, even decades ago (not as pervasive as us younglins would think), and that may be correct, but double professionals as a common thing is still more recent. We're making some (slow) progress toward wage equity on top of all of it too. That's a good thing, but it doesn't change much when people are bidding against each other.
But all things are not equal: It's not as simple as "back then it was 1 income families against 1 income families and now its 2 vs 2".
Not at all! Now you have 1 income families, 2 income families, 2 income families with no kids, 2 income families where both are software engineers, etc. All of these always existed in some form, but now it's very visible.
If my partner and I (we're DINKs, both in software engineering and highly successful) go to bid on a home, and a single working parent with a partner who stay at home, and 3 kids, try to outbid us... Well, let's hope for them that the single earner is a world famous neurosurgeon, else they're not getting that home.