This book, by a former financial analyst, is a vibrant, crisp, and clear explanation of what happened in the famous "South Sea Bubble" of 1720, when the stock of the South Sea Company, created in 1711 to buy up the British debt, suddenly surged to 10 times its original value and crashed back down to Earth again. This was arguably the first financial bubble and first market crash in world history.
The book explores a range of topics, some only tangentially related to the main tale. The book describes in detail the almost simultaneous growth and collapse of John Law's Mississippi Company in Paris, and the frantic trading on the Rue Quincampoix that accompanied it. It investigates the growth of London coffee shops in the late 1600s, Charles II's abortive attempt to ban them in 1675, and the battle over newspapers and financial activity in the shops. The author does demonstrate, however, that these coffee shops were the center of English finance and thus important to the eventual South Sea Bubble. While a coffee shop like Lloyd's could one day grow to became the most famous insurance company in the world, Jonathan's could eventually become the London Stock Exchange. It was also in the streets around these shops, on what became known as "Exchange Alley," that modern finance grew and took shape, with all the supposedly modern financial derivatives, such as puts, calls, repos, and forward contracts, in common use by stock brokers and "jobbers" and enforced by courts.
The book is weakest, however, when it narrows its focus and pushes its main argument, that the "Bubble" provides strong evidence against efficient markets and for an investor "mania." Using the detailed exposition of a contemporary MP, Archibald Hutcheson, the author shows that the South Sea Company assets, largely government debt paying 5% a year, were worth at best half of what the stock was worth at the boom's peak. Hutcheson does make the caveat that his valuation excludes possible profits from its monopoly on South Sea trading in slaves and goods, but he shows that such trading was never profitable and had largely ceased by 1718.
This calculation still excludes much. One issue is that just as John Law's Mississippi company was buoyed up by his simultaneous control of the Royal Bank and his ability to print endless streams of new "livres" to finance it, the loose monetary environment seemed to affect England and the South Sea Company as well. Law's paper money scheme drove gold out of the country and into England, and, as such money tends to do, it seemed to drive up prices everywhere. Just as Law unfortunately decided to deflate his way out of his troubles, and thus unwittingly ruin his company, the gold began to flow back out of England and prices crashed there as well. Viewed in this light, it was no coincidence that John Blunt's South Sea Company collapsed just two months' after Law's company, since they were both subject to the same inflationary and deflationary pressures. The author's intense investigations into the South Sea's books also begs the question of why the boom that took the South Sea stock up 500% in six months also took the Royal African Company up 483%, and the Million Bank up 250%. Clearly something systematic was going on here, and it could well be monetary changes. The South Sea's investors actions also look a lot more reasonable when one understands that this company at the heart of the first crash also received the first bailout, by the new incoming Robert Walpole administration. This bailout cancelled almost all the company's debt to the government, and allowed investors to recover almost half of what the stock was worth at its very peak. The investors' later complaints about the legislative authorization and supposed approval of the company by the government show that perhaps they always expected some sort of bailout.
Even if one does not buy the main argument of the book, there is lots of food for thought here. The legal reactions to the crash are remarkably familiar, with special legislative investigative committees into the crisis and the like. In 1721 the government banned "naked short sales," where the stock jobber did not own the actual stock to be sold, and in 1734 Barnard's Act voided all options contracts. There were new attempts to enforce a 1697 act that licensed all stock brokers and forbid them from trading "on their own account," an early attempt at "ring-fencing." One commentator argued that company accountants should swear to the accounts' truth under oath before board meetings, something not instituted until the 2002 Sarbanes-Oxley act in the U.S. On the whole, despite its argument and frequent segues, this book is an uncommonly clear and detailed explanation of the birth of modern finance.