I wanted to say this is an enquiry into a particular subject but then I realized that that would be presumptuous. I do, however, want to suggest a perimeter for a subject that borders on economics. It bears on flow of wealth. Where do individuals get the stuff they need?—thus the title “Food and Lodging”. The unemployment rate includes only those “seeking employment”. I consider that a spurious predicate.
I want some numbers more that a bare list but I start with the latter.
Jeremy Bentham and Bertrand Russell inherited wealth which enabled them to leave us considerable wealth. I call what Euclid wrote “wealth”. It is perhaps too difficult to quantify and might be excluded on that basis, but we want to avoid social choices that discourage Euclids. I fear that we will make social choices that could be guided by such knowledge as this, but will not be. Perhaps we should exclude non-rivalrous things such as those produced by Euclid and Russell and stick to a more quantitative subject. That omits open source projects which would then become an important exogenous factor.
Many people have a substantial foot in two or more of these categories.
If economics is seen as money flow this subject is excluded. If economics is seen as value flow, our subject is included. Saving for retirement should be included in economics in either case.