I finally finished reading the paper to which this article refers, and it is almost certainly bullshit.
The paper is extremely long and pointlessly over-mathematical, so it took me a while to read. It’s 40 pages long.
There are a number of obvious problems, but the main one seems to be that the authors include these factors as “returns,” which is very dubious as most people would define that word.
A major innovation in JKKST is the inclusion of housing returns. These new data on housing returns cover capital gains, and also the net rents paid renters and owners (i.e., imputed).
This, uh, “innovation” means basically that the “returns” here will be dominated by the rent paid from renter to owner and the notional rent an owner would pay to live in his or her own house. In other words, the first one is not the typical way to define housing returns and the second one is basically a fake number that if included in the calculation certainly juices the “return” but nowhere did any money change hands or any gain accrue to anyone, capital or otherwise.
Economics is so essentially terrible. The whole profession is full of things like this where you have to be extremely knowledgeable to see how and where you are being hoodwinked. I’ve spent an hour and a half reading this damn paper, trying to understand the math, and it’s a con, just like a lot of (appropriately named) econ.
To show why imputed rent is one of the problems here, and a huge one, imagine that you buy a house. Twenty years go by. The area does well. Your mortgage is still low or paid off. Yet, your imputed rent might be $2,000 a month — meaning that you’d pay $2,000 to live in your own house — if it were required. No money changes hands. Absolutely nothing has been exchanged. There is no return here. No one gains anything in the real world. If held apart from capital gains, this is a form of double counting — tallying the capital gains and the “return” from imputed rent. Nice try, attempting to slip that by. It’d work on most.
What a waste of my time. Along with the idea of including rent paid from renter to owner, which is not a typical way of tabulating returns to housing; remove those two items above and include taxes (also not included in the paper), and all those “returns” vanish.
Wonder what propaganda outfit caused this paper to appear. Economics doesn’t have a replication crisis. It has a “let’s just make stuff up” crisis.