“Ask Maestro Luca to explain alla Veneziana”, Leonardo da Vinci wrote in his to-do list, sometime in the 1490s.
Leonardo was referring to the system of accounting devised by the Franciscan friar, mathematician, conjuror and chess player, Luca Pacioli, and described, in painstaking detail, in his Summa de Arithmetica, Geometria, Proportione, e Proportionalita, a 615-page tome summarizing all that was known about mathematics in Renaissance Italy, as of 1494.
Alla Veneziana is better known today as double-entry bookkeeping, a system of information management to track the flow of money and goods in and out of a business and to record the balance of assets and liabilities.
Double-entry bookkeeping revolutionized financial management, and the system Pacioli described remains the convention, to this day.
The rise of Venice and the other northern Italian city-states, where private bankers converged in the market square to offer their services to merchants, marked a new phase in the region’s economic history.
The bankers made credit available to more merchants, and bank notes and letters of credit printed on paper, portable and precise, enabling more complex transactions, on a larger scale, than before.
As Pacioli laboured over his Summa, ever more galleys and cogs, laden with cargo, crisscrossed the azure waters of the Mediterranean, shuttling between ports in Italy, Spain and Portugal.
Raw materials and finished goods were carried from one port to another, and then to their final destination.
An order of wool from a milliner in Florence might be sent to Spain, by ship. Months later, Spanish wool, perhaps shipped from Barcelona, arrived in Pisa or Venice, to be transported by road, to the milliner’s Florentine warehouse.
There, craftsmen spun the wool into cloth, to be shipped back to Spain, and then to market, in Europe or North Africa.
The entire process took years, with several border crossings and exchanges. Keeping track of the intricate web of commerce, of who owed what, to whom, was a challenge.
And what, when all was said and done, did it cost to produce a yard of the woolen cloth?
For millennia, financial accounts were often a simple tally of items owned, inventories recorded on any surface that preserved marks.
Auditors listened while stewards made reports of inventory, and checked shipments.
In more literate economies, financial accounts might be narratives, describing not just inventory but also transactions: what had been exchanged, on what date, with whom, and under what terms.
Eventually, accounts became numerical ledgers, identifying precise monetary values for goods and services.
Pacioli took the ledger, and gave it a twist: each transaction was entered twice, once as a credit, and again as a debit, and allocated to separate specific accounts.
If at the end of an accounting period, these credits and debits were in balance, then the accounts were in order.
Based on this ledger, Pacioli described a comprehensive system of accounting, starting with what counted as a transaction, through the entire “accounting cycle”, to the final balancing entries.
Such an integrated system of information management was just what merchants needed to keep track of their finances in an increasingly complex business world.
Half a century after Pacioli applied the finishing touches to his opus, copies of the Summa emerged from Gutenberg’s newly invented printing press, taking double-entry bookkeeping to merchants far and wide.
The financial information recorded alla Veneziana was proprietary: the accounts and books of the business, like the assets and profits, belonged to the owners. And sole proprietorships, family businesses, and limited partnerships were under no obligation to share either profits or company information.
But the owners of all the profits also owned all the debts, and if they did not repay, creditors laid claim to their personal property.
Unlimited personal liability for business debts placed practical limits on the potential size and scope of commercial activities. Larger, more ambitious ventures would require more capital than the merchants of Venice could raise, and more debt than they could carry.
As commerce expanded throughout Europe, new ideas and innovations emerged. Some failed; others endured.
In the second half of the 16th century, one idea gained traction in northern Europe. It was for a new form of business, one owned by many, rather than a few, run by professional managers, rather than proprietors, and made possible by combining information with legal innovation.
This new form of business would grow larger than anything the merchants of Venice could conceive, large enough not only to transform the world of trade and commerce, but also to shift the balance of economic power from southern to northern Europe, and change the course of world history. They called it the “joint stock limited liability company”.
The author is a writer and researcher in Dhaka, who previously worked as an investment banker in London and New York