The “Bubble Act” of 1720

The Panic-Driven Law That Shaped Corporate Law for a Century

The Bubble Act of 1720: A Reactionary Law with Long Shadows

The passage of the “Bubble Act” (officially the Royal Exchange and London Assurance Corporation Act 1719) in the feverish summer of 1720 earns its complex place in the Business Hall of Fame as a landmark intervention by Masters of Law & Governance. Enacted at the peak of the South Sea Bubble frenzy, its stated purpose was to suppress the flood of “bubble companies”—fraudulent joint-stock schemes that had mushroomed to exploit public mania. However, its true impetus was more cynical: to protect the capital flowing into the South Sea Company’s own speculative stock by eliminating competing investments. The Act prohibited the formation of joint-stock companies without a royal charter or act of Parliament, and made it illegal for unchartered companies to issue transferable shares. While it failed to prevent the South Sea crash, its long-term effect was profound and largely inhibitory. For over a century (until its repeal in 1825), the Bubble Act restricted the legal form of the business corporation in Britain, making incorporation a rare and politically-charged privilege rather than a routine commercial tool. This choked off a vibrant, if chaotic, period of entrepreneurial finance and entrenched the view that corporations should be granted only for specific public purposes, like building canals or railways. The Act’s legacy is a pivotal case study in how a law born of panic and self-interest can shape the very architecture of commerce for generations, slowing the development of the modern corporate economy and highlighting the tension between entrepreneurial freedom and the need for market integrity.

The Con: Mania, Monopoly, and Political Motive

To understand the Bubble Act, one must first understand the speculative atmosphere of 1720. The South Sea Company’s scheme to take over the national debt had sent its stock price soaring from £128 to over £1,000. This mania inspired a host of imitators. The London newspapers of the day were filled with prospectuses for absurd ventures: “for carrying on an undertaking of great advantage, but nobody to know what it is,” “for a wheel for perpetual motion,” and “for importing a large number of jackasses from Spain.” While some were legitimate businesses, many were outright frauds designed to separate gullible investors from their money. This proliferation of “bubble companies” threatened the South Sea Company in two ways. First, they competed for the finite pool of speculative capital. Second, their inevitable collapse risked discrediting the joint-stock form entirely, which would undermine the South Sea scheme itself. The South Sea directors, who had immense influence in Parliament, pushed for legislation to clear the field. The resulting Bubble Act was rushed through in June 1720. It was not a disinterested piece of investor protection; it was a weapon of commercial warfare, wielded by one bubble to pop its rivals. As noted by economic historians like Ron Harris, the Act’s passage marked the zenith, and soon the turning point, of the bubble.

The Legal Mechanics and Immediate Aftermath

The Bubble Act operated through a combination of prohibition and severe penalty. Its core provision made it illegal for any “undertaking” to act as a corporate body, raise transferable stock, or imitate the privileges of incorporated companies without authority from Parliament or a royal charter. Violations were subject to heavy fines and the forfeiture of all property to the Crown. Furthermore, it made “brokering” or dealing in the shares of such illegal companies a punishable offense. The Act was enforced with sudden vigor. In August 1720, the government issued a proclamation naming 86 “bubble companies” as illegal and ordering their suppression. This action, intended to shore up confidence, instead triggered a wider loss of faith in all speculative ventures. By September, the South Sea bubble itself burst, leading to the Act’s most famous irony: it had helped trigger the very crash it was partly designed to prevent. In the ensuing panic and parliamentary inquiry, the Act remained on the books, but its primary sponsor—the South Sea Company—was disgraced. The law was rarely invoked with full force in the decades that followed, but its mere existence cast a long shadow. It created legal uncertainty for unincorporated joint-stock ventures, which were the primary vehicle for raising capital for new enterprises. Business organizers had to navigate a grey area, using complex partnership deeds (deeds of settlement) to mimic corporate features without technically violating the law. The and impact of the Act are preserved in Parliamentary records.

The Century-Long Chill: Stifling the Corporate Form

For over a century, the Bubble Act acted as a powerful brake on British business organization. The process of obtaining a royal charter or a private act of Parliament was expensive, time-consuming, and politically fraught. Charters were granted not as a right but as a special favor, typically for ventures deemed to serve a clear public interest, such as infrastructure projects (canals, turnpikes, later railways), banking, or overseas trade (like the East India Company). This created a two-tier economy: a small number of large, politically-connected chartered corporations, and a vast sea of small partnerships and unincorporated joint-stock companies operating in a legal limbo. This system stifled innovation and capital formation in manufacturing and domestic industry. An entrepreneur with a new invention or industrial process found it nearly impossible to raise capital from the public through easily traded shares. This is often cited as a reason why Britain’s Industrial Revolution, while technologically brilliant, was initially financed largely through partnerships, retained earnings, and local banks, rather than through a vibrant public equity market. The Bubble Act entrenched the idea that the corporate form with limited liability was a dangerous privilege, not a neutral tool for business. This ideological and legal barrier persisted until the pressures of industrialization and competition from the United States (which had liberal incorporation laws at the state level) forced a rethink. The economic consequences are analyzed in works on the history of the corporation.

Lessons Learned: Regulation, Innovation, and Unintended Consequences

The Bubble Act’s history offers critical lessons about law, finance, and economic growth. First, it is a prime example of **regulation driven by incumbent protectionism rather than public interest**. The law was designed to help one favored company, not to create a fair or efficient market. Second, it demonstrates how **a reactive, poorly conceived law can have enduring negative consequences**, stifling innovation and organizational development long after its original con has faded. Third, it highlights the **importance of the legal form of the business corporation** as a catalyst for economic growth. By restricting access to this form, Britain likely slowed the pace of capital mobilization for a century. Fourth, its eventual repeal in 1825 (and the subsequent liberalization of incorporation in the 1844 Joint Stock Companies Act and the 1855 Limited Liability Act) shows that **legal frameworks must evolve to meet the needs of a changing economy**. The repeal unleashed a wave of incorporation and railway manias. For business students, the Bubble Act is a cautionary tale about the power of law to shape markets. It reminds us that corporate law is not just a technicality; it defines the very possibilities of enterprise. It also underscores a perpetual tension: how to protect investors from fraud without crushing the entrepreneurial spirit and the ability to raise risk capital. The ghosts of 1720—the fear of bubbles and the power of established interests—continue to influence debates over financial regulation, IPO markets, and the proper role of the state in commerce to this day, themes explored by regulatory bodies like the UK’s Financial Conduct Authority which inherited the mantle of market oversight.