“Where Assets (and “Money”) Come From”

Steve Roth — Wealth Economics

When you look at the left side of an entity’s balance sheet or its brokerage account statement, you see a list of things that the entity owns, with an estimate of what those assets are worth. The estimates are generally at current market value — what somebody would pay for those assets at that moment.

Looking back over a household’s year-in and year-out flows, plus revaluation/capital gains, it’s fairly easy to understand where that household’s (your) assets “came from.”

But for aggregate sectoral assets — the total for the US household sector or the total domestic sector including firms and government, the understanding is not so obvious. In the big picture there are four mechanisms that create new assets in the world — “out of thin air,” as the saying goes. Some of those new assets are “money,” but most are not.

The first thing to notice: the colored areas, summed, match the black line pretty darn well despite some measurement discrepancy. These four asset-creation mechanisms explain all the aggregate asset accumulation. The mechanisms are explained below.

But first, why are we looking at the household sector? Because, in an accounting sense at least, the household sector owns everything. It’s the top of the accounting-ownership pyramid. Firms can own shares in firms, for instance (ad nauseum), but ultimately households own it all.1

With that understanding, let’s look at the four mechanisms of asset creation. Each works somewhat differently.

But! The payer now owns the newly created stuff, and posts its value to their balance sheet (generally at cost; it may later be marked to market, for instance when a remodeled building is re-appraised to get a loan, or it’s sold). That accounting event, posting the new asset to the balance sheet, means there are more assets in the world. Voila.

As that new stuff wears out, decays, ages, becomes obsolete, its value is depreciated on balance sheets; this is also called “consumption of fixed capital.” So the blue slice here is net investment/capital formation: gross capital formation minus capital consumption.

Bank lending. Borrowing adds asset and liabilities to the borrowers’ balance sheets, in equal measure. The borrowers issue new IOUs (assets for the banks), and the banks issue new bank deposits (assets for the borrowers). Loan payoffs do the same, in reverse. So net bank lending, the orange slice, creates new assets in nonbank private-sector accounts.

Government deficit spending. When government spends it quite literally deposits money assets into private-sector bank accounts — payments for goods and services, transfers, and etc. If its outlays are more than it receives in taxes etc., it issues the new “extra” assets out of thin air. (Those new assets are offset by liability entries on the government balance sheet.)

For me at least, this understanding of asset-creation mechanisms makes it much easier to think about some economic truths and truisms that you hear out there, many of which have never made sense to me (at all, or just “not quite”). I’ve highlighted three examples below. To keep this post short, and for those who might find it valuable, the links take you to questions I’ve asked of Claude AI, and its answers. I do not fully endorse those answers; they get some stuff wrong. But they get quite a lot right.

As always, I much appreciate comments, thoughts, and corrections from my gentle readers. Thanks for reading.