https://en.wikipedia.org/wiki/Debt:_The_First_5000_Years
He starts with the reasonable postulates that economic value is a function of desirability and uniqueness.
and then observes that the things which make us the most human are by definition shared among all humans, ...
thus essentially of zero economic value.
Of course, he is also arguing against traditional definitions of economic value by showing how ridiculous they are, much as you point out.
The term "emotional labour" is the more common used one for what you've described as "emotional services".
https://en.wikipedia.org/wiki/Emotional_labor
It doesn't really make sense in this context unless you only think of the emotional management homemakers do as labor and not all the other stuff they do. You already provided a perfectly suitable phrase in your post: "uncompensated domestic labour"
The most interesting part of emotional labor to me is its connection to tipping culture in America. It's the reason why you usually tip a waiter but not a bus boy, and why you tip the room service person but not the delivery guy. The rule of thumb is: if someone's doing a job where they're expected to put on a smile even if their dog died that morning, they're eligible to get compensated via tips for that additional emotional labor.
I wonder how much of the ‘economy’ (in terms of work done and the dollar figures we put on that) is actually a part of this undocumented category.
The GDP-PPP of countries doesn’t take this sort of thing into account as far as I’m aware, but I’d like to know what would happen to those numbers if everyone simply stopped doing unpaid emotional labour. You could get a sense pretty quickly of how much society is undervaluing it.
Even today there's a distinction between "is theoretically entitled to half the assets by court order on divorce" and practical day to day access to that money.
However, the longer time period you look look at between two GDP figures, the less comparable they are. And finally, since different nations have different economic structures, a direct currency translation may be misleading, hence PPP (which is misleading in a different way, but <shrug>).
Arguably this is the situation in Europe, compared to America, as there isn't a comparable tipping culture.
In Germany, there is a word to describe how this has tipped over into a "Service desert" - "Servicewüste", a complete lack of acceptable customer service.
However I think a non-tipping culture is preferable.
Emotional Labor would be a better term for eg the stresses of maintaining relationships.
The story that comes up from time to time is a day-care that charged fees to parents who arrived late, and that caused more tardiness, because now the parents didn't feel guilty; now they were buying something.
Friendship and romance would fall under #9 as an industry since the goal is to match people with potential friends and partners. I'm not sure the 'emotional services' that you receive from friends, family, and romantic partners should be evaluated as a commodity. To make that clearer, if I manufacture something for a loved one or purchase it while I'm travelling and then transport it back to them I don't measure the value of that action in terms of money and I'd sincerely hope they wouldn't either.
Or what about friendship or a romantic partner? A husband or wife cannot be converted into money but I’d say having one is to most people a definite kind of wealth.
You might call these ‘emotional services’, and group them in with art and entertainment in general. I would say this is at least different enough from manufacturing to warrant their own category. Edit: rewording