Currency and Commerce in Imperial China

For two thousand years, the imperial Chinese economy depended on a sophisticated system of money, credit, and commercial organization. The basic circulating medium for most of that history was the round copper coin with a square hole, a design so durable that it was still being minted in essentially the same form at the end of the Qing. Alongside the copper coin, silver in unmarked ingot form served as the high-denomination currency, especially from the late Ming onward. Paper money, the world’s first, appeared in the Song, was used at scale in the Yuan, and was revived cautiously in the Ming before being abandoned in favor of silver. The whole monetary system was supported by an extensive credit and banking infrastructure — bills of exchange, pawnshops, deposit banks, and the great Shanxi merchant banks of the Qing — that allowed merchants to settle accounts across an empire of more than ten million square kilometers.

This page surveys the long arc of currency and commerce in imperial China. The first section examines the coin and the silver systems, the second the rise and fall of paper money, the third the credit and banking system, and the fourth the merchant class, the guilds, and the rise of market towns. The detailed treatment of the origins of paper money takes up the most important innovation in this story. The broader economic context, including agriculture and foreign trade, is set in the overview of the imperial Chinese economy, and the history of imperial China places these developments in their dynastic frame.

Coin and Silver: The Long Bimetallic Tradition

The standard imperial coin was a round copper-alloy disc with a square hole in the middle. The form, with minor variations, was first standardized under the Qin in the late fourth century BCE and persisted in essentially the same shape until the end of the Qing in 1912. The square hole allowed coins to be strung on cords for storage and transport, and the round shape with a clear central hole was easy to cast and to count. The Chinese coin became one of the most recognizable objects in the preindustrial world, and Chinese cash coins have been found on archaeological sites from Japan to East Africa.

Cowrie Shells and Early Money

The earliest Chinese money included cowrie shells, copies of cowries in bone and bronze, and various forms of bronze and iron tool-money. Cowries (Cypraea moneta) circulated in the Shang and early Zhou, often in units of ten or twenty strung on cords. The earliest bronze coins of the Warring States period took the shape of tools: spade money in the state of Qin, knife money in Qi and Yan, and ant-nose money in Chu. The Qin unification of 221 BCE abolished these local forms and imposed a single round copper coin, the banliang (半两), as part of the broader standardization of weights and measures. The Han followed up with the wuzhu (五铢) of 118 BCE, which became the longest-lived coin in Chinese history and was imitated for centuries after it ceased to be officially minted.

Tang and Song Coinage

The Tang introduced the Kaiyuan tongbao (开元通宝) in 621, a coin of a slightly different weight and design that became the model for virtually all later Chinese coinage. The Tang also experimented with a higher-value coin, the qianqiu jinyin qian (千秋金钱), but the Kaiyuan tongbao remained the standard. The Song minted an enormous quantity of coins, in iron, in copper, and in bronze, in a wide range of denominations. By the Northern Song, the annual output of coin mints may have reached 5–6 billion coins; the total stock of coins in circulation supported an active monetary economy of unprecedented scale.

The Song state faced a chronic copper shortage. The southern Sichuan region, lacking local copper deposits, resorted to iron coins, which circulated at a discount of about ten iron to one copper. The chronic shortage of copper in Sichuan was the immediate context for the invention of paper money, discussed below and in the paper money deep-dive. The Song also experimented with the world’s first state-issued paper money, the jiaozi, which circulated along with the coin and supplemented the limited supply of metal currency.

The Ming and Qing Coin Supply

The Ming Dynasty, after a brief period of paper money, returned to a predominantly bimetallic system of copper coins and silver. The Hongwu emperor, founder of the dynasty, nationalized the currency in 1375 in the form of paper, then watched the system collapse. The later Ming, from the late fifteenth century onward, minted relatively few coins of its own and effectively allowed the market to operate on existing stocks and on imported copper and silver. The result was a chronic coin shortage, especially in the south, that lasted into the early Qing.

The early Qing, especially under the Kangxi emperor (r. 1661–1722) and the Yongzheng emperor (r. 1722–1735), restored the supply of copper coins, opened new copper mines in Yunnan and elsewhere, and re-established an active coinage. The Kangxi Yongzheng Tongbao and Qianlong Tongbao coins circulated in tens of billions of units and formed the basis of the Qing monetary economy. The late Qing saw a fresh coin shortage, in part because the silver outflows of the nineteenth century raised the relative value of copper and made it economically irrational to use copper as small change; this contributed to the monetary chaos of the late empire.

Silver and the World Economy

The single most important monetary fact of the late imperial period was the rise of silver. From the late Ming onward, silver replaced copper as the standard of value for taxes, large transactions, and the payment of the military. The single-whip reform of the 1580s and 1590s converted most tax obligations to silver, which made the state dependent on imported silver. The source of that silver was the Spanish Empire in the Americas: the silver mines of Potosí in Bolivia and, to a lesser extent, the mines of Mexico. Spanish silver crossed the Pacific to Manila, was carried by Chinese merchants to Fujian, and was then distributed across the empire in exchange for silk, porcelain, and tea.

The silver influx transformed the Chinese economy. The volume of silver imports in the late Ming and early Qing was the largest such flow in the world; it supported a major expansion of the monetary economy, allowed the state to collect taxes in a convenient form, and drew China deeply into a global trading system. The system was also vulnerable: the silver flow contracted sharply in the early seventeenth century (when the Spanish reduced their remittances), in the mid-nineteenth century (when the opium trade reversed the silver flow), and in the late nineteenth century (when the unequal treaties and the silver standard disruptions added to the chaos). The late-Qing monetary crisis, with its deflation, bankruptcies, and fiscal weakness, was a major contributor to the broader crisis that the history of the fall of imperial China describes.

Paper Money: The First in the World

The world’s first sustained experiments with paper money took place in Song China. The deeper treatment of this story is in the paper money deep-dive; the present section summarizes the long arc.

The Song Experiments

The Sichuan merchant community, facing a chronic copper shortage in the eleventh century, began issuing negotiable deposit receipts that circulated as a de facto paper currency. The receipts were issued by a small group of wealthy merchants in Chengdu and were used to settle large transactions, especially in the tea and salt trades. The Northern Song state, recognizing the fiscal and commercial importance of the system, took it over in 1024 with the jiaozi (the first state-issued paper money), and the jiaozi circulated for several centuries. The Southern Song issued a more complex system of paper notes, including the huizi, the huizi jiaozi, and the jingyou jiaozi, with varying degrees of state backing and varying rates of success.

The Yuan Printing and the Ming Retreat

The Yuan Dynasty, under Mongol rule, issued paper money on a national scale, with mixed results. The Yuan government required all taxes to be paid in paper and tried to enforce the paper’s value by controlling the supply, but the system was undermined by chronic overissue, hyperinflation, and a general loss of public confidence. The early Ming returned to paper under the Hongwu emperor, issuing the Da Ming Baochao (大明宝钞), but the system collapsed within a few decades. The mid-Ming abandoned paper, returning to a bimetallic silver-copper system. The deeper treatment of these developments is in the paper money origins page.

Credit, Bills, and the Banking System

The Chinese commercial system supported a remarkably sophisticated set of credit and banking institutions, especially from the Song onward. The use of bills of exchange, deposit banking, and remittance networks gave Chinese merchants an infrastructure that compared favorably with anything in early modern Europe.

Bills of Exchange and Flying Money

The “flying money” (飞钱, feiqian) of the Tang was an early form of remittance: a merchant in one city could deposit coin with the state treasury and receive a bill that could be cashed in another city, sparing the merchant the cost and risk of transporting metal. The Song saw a rapid expansion of private bills of exchange, drawn on agencies in distant cities, that allowed merchants to settle accounts across the empire. By the Ming, bills of exchange were a standard instrument of wholesale trade, and the clearing houses of the great commercial cities processed tens of millions of taels of silver per year.

Pawnshops and Deposit Banks

Pawnshops (典当, diandang) were among the most familiar financial institutions of the late imperial period. They accepted pledges of clothing, jewelry, and household goods, advanced cash at a fraction of the pledged value, and charged interest on the loan. Pawnshops were operated by the state, by wealthy merchants, and by charitable foundations (especially Buddhist and Daoist temples). The state used the pawnshop system as a fiscal instrument, advancing funds in times of emergency and recovering them in better times. Deposit banks and money-changing shops were common in the great cities; the modern Chinese word for bank, yinhang (银行), preserves the older meaning of a “silver shop.”

The Shanxi Merchant Banks

The Shanxi merchant banks (晋商票号, jinshang piaohao) of the Qing were among the most sophisticated financial institutions in the preindustrial world. Founded in the seventeenth and eighteenth centuries by Shanxi merchants, the piaohao specialized in remittances: a merchant in Beijing could deposit silver with a Shanxi bank and receive a bill that could be cashed, after a few days or weeks, in a Shanxi bank branch in Shanghai, Hankou, Guangzhou, or any of the other great commercial cities. The piaohao network effectively created a national clearing system, allowing merchants to settle accounts without shipping silver and allowing the state to transfer tax funds from collection points to the capital. The piaohao were eventually eclipsed in the late Qing by the modern Chinese banks and the foreign banks, but in their heyday they were a remarkable financial achievement.

The Merchant Class, Guilds, and Market Towns

Despite the official Confucian ideology that ranked merchants at the bottom of the four-occupations hierarchy (scholars, farmers, artisans, merchants), the merchant class grew steadily in wealth, social prestige, and political influence from the Song onward. By the late imperial period, wealthy merchant families were deeply entwined with the landed gentry, used their wealth to buy jinshi degrees for their sons, and exercised significant influence on the imperial state. The history of the merchant class, the guilds, and the market towns is the social complement to the monetary and financial story told above.

The Rise of the Merchant Class

In the Han and Tang, the merchant class was a small and often despised layer of the population, subject to sumptuary restrictions, special taxes, and periodic confiscation. The Tang, in particular, attempted to suppress merchant speculation in essentials during periods of crisis, sometimes with severe punishments. The Song saw a significant shift: the urban revolution, the growth of long-distance trade, and the chronic fiscal needs of the state created opportunities for merchants, and the Song government came to depend on merchant wealth to finance its operations. The salt monopoly, the tea monopoly, and the government purchase of goods for military and court use all involved partnerships with designated merchant families.

By the Ming and Qing, the merchant class was a major social and economic force. The great merchant families of the late imperial period — the Shanxi merchants, the Huizhou merchants of Anhui, the Hokkien and Teochew maritime merchants, the salt merchants of Yangzhou, the silk merchants of the Jiangnan region — controlled enormous wealth, organized national trading networks, and provided credit to smaller firms and to the state. They established charitable foundations, sponsored Confucian education, supported the civil service examination system, and gradually merged with the landed gentry through marriage and investment. By the eighteenth century, it was common for the sons of merchants to take the imperial examinations and become officials, and for the sons of officials to engage in commerce.

Merchant Guilds and Self-Government

Merchant guilds (huiguan, huishang) were the principal institutions of the merchant class. Organized by trade and often by region of origin, the guilds set standards for their members, enforced contracts, mediated disputes, organized commercial information, and provided mutual aid. Many guilds ran schools, orphanages, and ancestral halls; they represented the community to the local magistrate and to the state; and they collectively negotiated with the imperial government on matters of tax and regulation.

The guild system was particularly important for merchants operating away from home. The Huizhou merchants, originally from Anhui, established guild halls in almost every major commercial city of the empire; the Shanxi merchants did the same. The maritime merchants of Fujian and Guangdong established guild halls throughout Southeast Asia, where they functioned as informal consulates and provided legal and financial support to their members. The Cohong of Guangzhou, the official merchant guild that the Qing government designated to handle European trade under the canton system, was a particularly powerful and well-organized guild of this kind.

The Rise of Market Towns

The imperial Chinese countryside was densely covered with periodic markets, rural towns, and small commercial cities. The Song saw the rapid expansion of this network: market towns (zhen, ji) became a regular feature of the rural landscape, with regular market days, permanent shops, and connections to the wider commercial world. The Ming and Qing extended the system: by the eighteenth century, almost every county in the empire had at least one market town, and most had several. The market towns handled the local trade in grain, salt, iron, cloth, and other essentials, and they connected the countryside to the great commercial cities of the Yangzi valley and the southeast.

The commercial economy that emerged in the late imperial period was, in the vocabulary of some historians, an “early modern” economy. It was characterized by a high degree of market integration, a sophisticated financial system, a substantial urban population, and a clear division between agricultural and commercial activities. It was also, of course, an economy embedded in an imperial political and ideological framework that valued agriculture and scholarship above commerce, that taxed the merchant class heavily, and that reserved the right of confiscation. The combination of these features — a market economy embedded in an imperial state, a merchant class with significant wealth but limited political power, a sophisticated monetary and financial system within a non-industrial technological base — defined the distinctive character of late imperial Chinese capitalism.