P14　The price is not always what is written on the surface.

Profit from money exchange, seigniorage from recoinage, and coin clipping → Transaction fees and profits from balance management.

How much am I paying? Who is taking it, and where?

Fees

Four Steps

Similarities

Places that exchange, move, or hold money take a cut. Each cut may seem small, but the accumulated amount is difficult for the payer to see.

Differences

Seigniorage from recoinage is taken by the state from the coin's content, profit from exchange is taken by merchants from the exchange rate, and modern fees are taken by businesses at each stage of a transaction. The entity that takes and the point of collection differ.

Applications

Multiply the rate, frequency, and period to calculate the annual cost for yourself. Where it says "free," look for what you are paying with instead (e.g., profits from your balance, your data, your time).

Limitations

When equating "recoinage = modern fees," remember that recoinage was mandatory, while fees are a choice. The cost of not choosing an available option should be counted separately from the system's cost.

These are the four steps for going beyond "it's similar." The "limitations" step defines the point beyond which historical analogies should not be drawn.

Read at the Modern Money Stations

Stations from the textbook "Modern Money: Whose Debt Is It?" where this structure appears. The four steps for each station are not displayed on the screen in the textbook. Here, you can read them side by side.

The balance on a transit card: whose liability is it?

8-01 / Digital　Present, Tokyo, Act on Settlement of Funds

Similarities: The form in which value issued by a specific issuer circulates like money within a limited scope is the same as with han-satsu or private notes from shops.
Differences: It is recorded electronically, and the law provides a framework for its definition and protection. The limitation of its scope is determined not by law, but by the issuer's contract.
Applications: When you see a balance, ask three things: who is the issuer, where can it be used, and to what extent is it protected?
Limitations: The standard deposit amount (cabinet order) and the details of protection methods other than deposits (security contracts, trusts) are not covered. The accounting treatment should also be confirmed separately.

What does "settlement" extinguish?

1-05 / Modern Money　Present. Tokyo. The three means of settlement.

Similarities: The nature of cash, where the transaction "ends the moment it is handed over," is the same as handing over a silver coin.
Differences: Deposit settlement occurs on a third party's books, and its finality is determined by the system (e.g., Real-Time Gross Settlement, DVP).
Applications: Distinguish between "paid" and "settled." A scheduled transfer is not a settlement.
Limitations: The properties mentioned are an explanation of the Japanese system; the treatment of payment finality differs by country and settlement system.

Reading the backing — opening the disclosure page

8-05 / Digital　August 31, 2026 Boston USDC Reserves

Similarities: The method of gaining trust by disclosing backing is the same concept as when banks began publishing their balance sheets.
Differences: The backing consists of short-term government bonds and repos, with weekly disclosures and monthly attestations, making the frequency an order of magnitude higher.
Applications: When viewing the disclosure page, read the categories, frequency, and attesting party, and treat the amounts as the values for that day.
Limitations: This stop is based on the self-disclosure of one company. It does not evaluate other issuers or the difference between attestation and audit.