PATTERNS

Recurring Structures

Times change. The questions about money keep coming back. This is a place for comparison. We examine one structure through four steps—similarities, differences, applications, and limitations—and juxtapose ancient stations with modern money stations.

15 Structures

P01 Constraints of finance and currency What has the state's need for expenditure done to the monetary system? Recoinage/Debasement → Public finance, government bonds, central bank, inflation P02 Creating money from credit On whose ledger does that balance exist? Bills of exchange/Deposit receipts → Bank deposits/Credit creation P03 The state pays for war What part of the monetary system does war test first? War expenses/Recoinage → Government bonds, central bank, public finance P04 A strong currency crosses borders Why does a coin that can be accepted without doubt cross borders? Athenian owl drachma/Denarius/8 Reales → Dollar standard P05 The system makes good money disappear What do people do when forced to accept two items of different value at the same price? Forcing acceptance of coins of different fineness at the same nominal value → Currency choice, capital flight P06 The monetary system collapses How does the manner of collapse teach us what supported the system? Dynastic change/Recoinage → Currency crisis/Default P07 New technology changes money When the technology of production changes, how does that affect who can be a producer? Striking → Machinery → Paper → Electronic payments, CBDC, Crypto-assets P08 The private sector creates money How has the state treated money created by non-state actors? Merchant credit/Private notes/Banknotes → Bank deposits/Stablecoins P09 The balance of payments drives politics Do monetary flows move faster than politics? Global circulation of silver → Foreign exchange, current account balance, reserve currency P10 The center of gravity of what underpins value shifts What gives today's money its value? Metal/Sovereignty/Law/Insignia/Weights and measures → Paper/Data/The state/Taxes/Central bank/Banks/Payment networks P11 Putting a price on time Is ten thousand yen today worth the same as ten thousand yen a year from now? Lending/Interest/Interest prohibition and its circumvention → Commercial credit/Government bond yields/Interest rate markets/Policy rates/Yield curve P12 What is offered to secure credit? What can the counterparty accept without doubt? Pledges/Real estate/Commercial bills → Government bonds/Securities/Repo collateral P13 Who promises "safety"? Behind the words "guaranteed" and "backed," who is offering what, and up to what amount? Paper of the king's bank and shares of companies that underwrote government bonds → Deposits of trust companies → Securities and digital money claiming to be backed. P14 The price is not always what is written on the surface. How much am I paying? Who is taking it, and where? Profit from money exchange, seigniorage from recoinage, and coin clipping → Transaction fees and profits from balance management. P15 Is time the enemy of the borrower and the friend of the lender? Is interest the price of time, or a dowry to compensate for a lack of credit? Interest rates on suiko loans, prohibition of interest, and pledges for kariage loans → Interest-bearing paper and refinancing of government bonds → Zero interest rates and long- and short-term rates.

Questions about money that reappear time and again across eras.

For each theme, we have placed one representative from an era. Clicking on a historical station takes you to the Course, and a modern station to the textbook "Modern Money".

	Ancient	Medieval	Early modern period	Modern	Modern
StateP01 P10	Lydia · SardisOverview: 2,700 years of the world　Lydia　600 BC	The Islamic Bimetallic SystemOverview: 2,700 years of the world　Islam and India　the 7th century	The Paris mintFrance　The gold of the Sun King melts　1683–1715	The Gold StandardOverview: 2,700 years of the world　The machine and the revolution　the 19th century	Who Decides? — The Policy Board and Two ProhibitionsTextbook "Modern Money: Whose Debt Is It?"　Present. Tokyo. Bank of Japan Act, Article 15; Public Finance Act, Article 5.
WarP03	The Assembly of AthensOverview: 2,700 years of the world　Greece　480 BC	A King's RansomOverview: 2,700 years of the world　War and money　the Middle Ages	Kipper und WipperOverview: 2,700 years of the world　Germany　the 1620s	The Banknotes of WeimarOverview: 2,700 years of the world　The machine and the revolution　AD 1914–1923	Government Bonds: Whose Debt, and How Much?Textbook "Modern Money: Whose Debt Is It?"　June 30, 2026. Tokyo. Ministry of Finance.
CreditP02 P08	MesopotamiaOverview: 2,700 years of the world　Before the beginning　3000 BC	The Bill of ExchangeOverview: 2,700 years of the world　The birth of finance　the Middle Ages	The London GoldsmithsOverview: 2,700 years of the world　The birth of finance　the 17th century	The Secret Meeting on Jekyll IslandOverview: 2,700 years of the world　United States　AD 1913	Why do bank loans increase deposits?Textbook "Modern Money: Whose Debt Is It?"　2014. London. Bank of England Quarterly Bulletin.
InflationP01 P06	An imperial mintItaly　Debasement　the 2nd–3rd centuries	Song · SichuanOverview: 2,700 years of the world　The monetary civilisation of the East　AD 1023	Edo and OsakaJapan　The century of recoinage　1706–1711	The Miracle of the RentenmarkOverview: 2,700 years of the world　Germany　November 1923	What is Monetary Policy Meant to Influence?Textbook "Modern Money: Whose Debt Is It?"　Present. Tokyo. Bank of Japan Act, Article 2.
BankP02 P12	The Temple as BankOverview: 2,700 years of the world　Gods and money　from 2000 BC	Banco and BankruptcyOverview: 2,700 years of the world　Italy　the 14th century	The Bank of AmsterdamOverview: 2,700 years of the world　Netherlands　AD 1609	Tokyo, the Bank of JapanJapan　The Satsuma Rebellion and inflation　1882–1899	What is the purpose of the reserve deposit system?Textbook "Modern Money: Whose Debt Is It?"　1957–. Tokyo. Act on the Reserve Deposit Requirement System.
International currencyP04 P09	The Silver Mines of LaurionOverview: 2,700 years of the world　Greece　480 BC	The Northern Trade RoutesOverview: 2,700 years of the world　Byzantium　the 9th–10th centuries	A mint of the New WorldSpain　The eight reales　the 16th century	London, the Royal MintBritain　The sovereign is born　1817	Dollars are also created outside the U.S. — EurodollarsTextbook "Modern Money: Whose Debt Is It?"　1962–2008 London, New York, Basel
TechnologyP07	India · Punch-Marked SilverOverview: 2,700 years of the world　Islam and India　the 6th century BC	Song ChinaOverview: 2,700 years of the world　Byzantium　AD 1023	The workshop of the Paris mintFrance　The louis d'or and machine striking　1629–1672	The GreenbackOverview: 2,700 years of the world　United States　AD 1861	Bitcoin: what problem did it solve?Textbook "Modern Money: Whose Debt Is It?"　October 31, 2008, Internet
InterestP15	The granaries of the provincesJapan　When temples were banks　the 7th–13th centuries	The Ban on Usury and PersecutionOverview: 2,700 years of the world　Gods and money　the Middle Ages	Kuramae in Asakusa, EdoJapan　Famine and the smashing of houses　1789	A merchant's counting houseTurkey　Interest-bearing paper　1840	Interest is paid on excess reserves.Textbook "Modern Money: Whose Debt Is It?"　2008–2024. Tokyo. Complementary Deposit Facility.