[DRAFT] Accounting vs economics: when equity goes negative

From The Tantri Files — verbatim writing from Prof. Tantri’s WhatsApp messages, with his blessing. Some of the best stuff in the chat is short.

How it started

A classmate had shared a screenshot of a company showing a negative debt-to-equity ratio and asked the group what it meant. The thread that followed turned into the cleanest distinction Tantri has ever offered between two ways of thinking.

A classmate: How is debt-to-equity negative? Is debt negative or equity?

Tantri. Equity can become negative. Why are people surprised?

On a serious note, values of assets falling below value of liabilities is negative net worth or equity. This happens all the time. Some debtors have to take a haircut in this case.

A classmate: Sir — a ratio cannot be negative… so either debt is negative or equity… then how do we assess?

Tantri. Because equity takes the first hit. It is only after the entire equity is wiped out, you can start touching debt. Therefore, a negative ratio means negative equity.

The serious answer

A few minutes later, this:

On a serious note, this is where economics and accounting diverge.

For an economist, equity becoming negative is nonsense as liability is limited (you can’t touch anyone’s kidney): you cannot ask equity investors to bring money from home.

For accountants, this is a routine affair when asset value is less than liability.

An economist will record this as a debt write-down with equity at zero, and fail an accounting exam.

An accountant will show this negative equity and keep the debt value as it is, and fail an economics exam.

He added, deadpan:

Hope you get the difference between thinking in an accounting sense and an economic sense.

The clarification

Five minutes later, since people had been confusing the two questions:

What [the classmate] said is also correct. Net Debt can be negative if cash is more than debt. This is also common. Net debt = Debt − Cash.

If this was the question, we have wasted our time.

I thought people were asking about negative debt-to-equity ratio, which is more interesting.

Why this matters

You will read about insolvent companies for the rest of your career. When you do, you’ll see two very different stories about the same balance sheet:

The accountant’s report will show a stark negative number under “shareholders’ equity,” with debt held at face value. The firm looks broken on paper, but the lenders are still owed every rupee.
The economist’s analysis will say equity has been wiped out and debt has effectively been written down to whatever the assets can cover. The firm is broken in value, and the loss has already been distributed.

Both are right. They are answering different questions. One is recording what is under a particular set of measurement rules; the other is computing what’s recoverable under the principle that liability is limited.

The cleanest test of which lens you’re using: when you see a negative-equity firm, do you instinctively reach for “shareholders owe more than they paid in” (you’re an accountant) or “debt-holders just took an unannounced haircut” (you’re an economist)?

Editor’s notes

Verbatim from the Finance Enthusiasts WhatsApp group, evening of September 23, 2024. Student names have been removed; the lighter banter around the exchange (and a long tangent about Coldplay tickets that derailed the thread) has been omitted. The “Why this matters” section is editorial, not Tantri’s.