NOMISMA
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History as Driven by Market Realities

The official value set by laws and agreements, and the true value indicated by the market. The discrepancy between these two can strip people of their wealth or carry precious metals across borders. This article traces the workings of these "market realities"—a force often unmentioned in historical sources.

Understand Real Market Value in 3 Minutes

  1. See it
  2. In numbers
  3. What would you do?
  4. Read more

1See it

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June 1940

Occupied countries were forced to pay the costs of the occupying army.

400 million francs a day

The initial amount

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1940

They set the rate at 1 mark to 20 francs, which was higher than its real value.

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During the occupation

At that rate, soldiers bought out everything on the store shelves.

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1940 → 1943

The price of food jumped 4 times higher.

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What is 'real value'?

It's not the official price, but the actual price moving in the market.

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1794

The legal ratio for gold and silver was out of sync with the market.

15 to 1

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As a result

Gold, which was undervalued, flowed out of the country.

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The tulip story

Many famous tales are later rumors, not actual trading records.

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In summary

We can only figure out the real value by studying ledgers and price records.

2In numbers

4times

The rise in food prices under occupation from 1940 to 1943

285.5 billionfrancs

Total occupation payments, as valued in 1942

3What would you do?

By law, the exchange ratio of gold to silver is 15 to 1. But in the market, gold is valued as less than that. If you had gold, what would you do?

Pick one

Use it in the country at the official ratio.

Inside the country, gold was still undervalued. So, most people didn't do this.

Take it out of the country where it's valued higher.

This is what actually happened. The undervalued gold flowed out of the country.

4Read more

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2026-08-25 Mitsuru Hayama The origin of words
United States — The Coinage Act of 1792 / The striking room of the mint

A Weapon Called an Exchange Rate

In June 1940, in a Paris under an armistice agreement, the exchange rate became a weapon. It was stipulated that France would pay for the maintenance of the occupying German army, an amount that initially reached four hundred million francs per day. One of the tools for this payment was the exchange rate. One mark was fixed at twenty francs, a rate higher than its actual market value. With this fixed number, German soldiers bought out the shelves of Parisian shops. The price of food quadrupled between 1940 and 1943. The occupation was not just about guns; it was also about these daily numbers.

Official Value, Market Value

The officially established value and the value that actually moves in the market. The latter is called the "market rate." It is the value as it actually is, not as it is stated to be. In occupied Paris, the official value of the exchange rate was set far from the market rate, functioning as a tool to unilaterally transfer wealth. The payment of these occupation costs was a form of plunder disguised as an agreement, with the amount determined almost entirely at Germany's discretion. A 1942 Ministry of Finance assessment valued the total payments at 285.5 billion francs.

Gold Coins Crossing Borders

A discrepancy between the official value and the market rate can also lead to unintended consequences. In 1794 America, the first one-dollar silver coin, the Flowing Hair Dollar, was struck. However, the mint's output was small, and the Spanish dollar continued to be the coin used in daily market transactions. An even bigger problem was the legally established gold-to-silver exchange ratio of fifteen to one. This ratio was out of step with the market rate, resulting in gold being undervalued. The result was clear. The undervalued gold flowed out of the country. It was a reenactment of Gresham's Law on the new continent.

What Lies Behind the Anecdote

The Dutch tulip mania, known for the anecdote that "a single bulb could buy a house," is also being re-examined from the perspective of market rates. Many of these famous stories are rumors derived not from transaction records but from moralizing pamphlets printed just after the crash. Recent research is redrawing the picture of this three-hundred-year-old bubble. Goldgar could only confirm a few bankruptcies from documents, and many participants were wealthy merchants. The impact on the overall economy is considered to have been limited, and some researchers, like Garber, argue that the high prices of rare varieties can be partly explained by market realities. However, researchers do not go so far as to say it was not a bubble at all.

Official historical records often speak of the established value. The true value, the market rate, can only be deciphered indirectly from places like account books and price records.

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