My historical work focuses on laws of money, especially legal tender, a concept which is poorly understood and frequently ignored.
AMERICAN ORIGINS OF MODERN CURRENCY: 1607-1692
In 1971 gold was finally taken out of the monetary system. The entire world settled for the first time on intrinsically useless, inconvertible, unbacked legal tender money. The notions of a government providing gold for notes or punishing sellers who reject its notes seem entirely alien to young generations in free countries, even though these were common practices in earlier times. This modern type of money was born in Massachusetts in 1690. From there it spread to the rest of the world, but its pro-inflation bias led to its repeated suppression between wars, until 1971. In this project I examine how the legal tender law - originally used to solve contractual disputes - came to be the anchor of all modern monetary systems.
Backing paper money with land was the hottest financial idea of the late 17th century in England and its colonies. To understand why it was not executed in Massachusetts in 1690 when that colony needed to print money, it is necessary to understand the failed Boston land bank of the 1680s. Imported from England in 1685, it was myteriously aborted in 1688 at an advanced stage. In Why was America's First Bank Aborted? [Journal of Economic History 71(1), March 2011, 211-22] I show that this happened because a new royal governor invalidated all the local land titles. This episode has larger ramifications on the debate regarding property rights under dictatorship (see my Political Economy page).
One of the key contributors to the 1690 Massachusetts invention was the idea of issuing paper money at a discretionary amount without having the proper physical backing at hand in real time. In The Inventions and Diffusion of Hyperinflatable Currency I examine various claims to the origin of this idea and the transmission of information about monetary innovation between countries and across time. I find that the money improvised from playing cards in Canada in 1685 was probably an original re-invention that inspired Massachusetts. The Canadian money was supported by a credible promise of future convertibility and by forcing sellers to accept it, but these were not feasible solutions in Massachusetts of 1690.
In The Massachusetts Paper Money of 1690 [Journal of Economic History 69(4), December 2009, 1092-1106] I put these and other pieces together. In order to appease the English king in a turbulent period of constitutional uncertainty, the currency could not be legally supported in any way other than legal tender, thus leading to a remarkable monetary innovation. I also found that the most cited negative evidence on that money's performance was forged by the colony's nemesis.
Looking at the bigger picture, colonial America had an incredible variety of types of money. Corn, wheat, barley, tobacco, rice, sugar, Indian seashell money, beaver fur, fish, whalebone, bullets, silver plate, Spanish coin, English coin, colonial coin, and banknotes preceded the 1690 innovation. In my book How Americans Invented Modern Money, 1607-1692 [advance contract, University of Chicago Press] I will explain why this happened, and why of all colonies Massachusetts alone managed to go beyond primitive money. It had the most specatcular monetary evolution in history, doing in 60 years what took the world 6000 years. My theory, in a nutshell, is that everything was caused, directly or indirectly, by English regulation across the board.
THE LEGAL STATUS OF MONEY
In this project I examine the plethora of methods used throughout history to support the circulation of intrinsically useless currency. I focus especially on Legal Tender. One reason that legal tender laws have been mostly ignored in the literature is the existence of myths about objects used as money with neither legal support nor intrinsic value (this is what economists - but not legal scholars - call "fiat money"). In The Myths of "Fiat Money" I evaluate all such claims regarding traditional societies. I find them to be baseless. An excerpt, relating to the most famous examples (seashells and stone money), is Famous Myths of "Fiat Money" [Journal of Money, Credit, and Banking 37(5), October 2005, 957-967]. For a theoretical model of legal tender see my Monetary Theory page.
Many countries, especially in the past, made rejection of money a criminal offense. Most current laws of this type originate in the legislation of the first French Republic which had hyperinflation in 1793. In The Production Function of Economic Regulation: The Case of Forced Money I show how this law was enacted and then copied by other countries due to combinations of crises, authoritarianism and socialism.
HISTORY OF MONETARY THOUGHT
In 1752 David Hume published economic essays which have had a major impact on monetary theory to this day. Surprisingly, he almost completely ignored the pathbreaking massive experiment with unbacked paper money that was conducted at the time in the British American colonies. In Why did Hume Neglect American Paper Money? I attribute this to contemporary political events, the goal of his work, his treatment of laws, and his general dislike of America at that point in his life.