How is the answer worked out?

Each round takes a documented historical price and multiplies it by today's Consumer Price Index divided by the CPI of the price's year · the standard way economists convert old money into today's money. The game shows you the multiplier.

Are the old prices real?

Yes · they are widely-cited average US prices for their year (a loaf of bread, a movie ticket, a gallon of gas, a new car, and so on), and the CPI figures come from the US Bureau of Labor Statistics.

Why is a 1950 dollar worth so much more now?

Because prices have risen almost every year since, and the increases compound. The US CPI has multiplied roughly thirteen-fold since 1950, so a 1950 dollar buys about what thirteen dollars buy today.

Is this in US dollars?

Yes · the prices and the CPI are American, so the figures are in US dollars. The underlying idea · that inflation makes old money worth more in today's terms · is the same everywhere.

Does it work offline?

Yes. PlayMemorize is a Progressive Web App, so Inflation keeps working without a connection once the page has loaded.

Inflation · 日本語 | PlayMemorize

昔はお金の価値がもっとありました。各ラウンドでは、数十年前に米国で実際に使われていた価格が表示されます。それが今日の貨幣価値でいくらになるか推測してください。

連続正解 0最高記録 0

1950年にパン1斤は$0.12でした。それは今日の貨幣価値でいくらになりますか？

過去の物価とCPIは米国労働統計局のデータに基づいています。出典を見る

ヒント: 1世紀のインフレは急速に積み重なります · 1950年の1ドルは今日の10ドル以上の価値があります。