Proponents of Modern Monetary Theory (MMT) think that money is a ācreature of the state.ā They say that money is whatever the state says it is, and that this is instituted primarily through taxation. ForĀ them, money is āthat which [the state] accepts at public pay offices (mainly, in payment of taxes).ā
MMTers dispute theĀ Mengerian theoryĀ of the origins of money,Ā sayingĀ that it āis based on false a-historical premises.ā Carl Menger made the commonsense claim that before money, there must have been barter. In barter, people trade goods for direct useāthey donāt use any good as a ābridgeā or āmediumā to get a different good that they actually want. You can imagine that getting what you want from the market could be very difficult. You have to find somebody who has what you want and, simultaneously, who wants what you have. This condition for voluntary exchange is called the ādouble coincidence of wants,ā and itās a severe constraint for direct exchange markets.
Menger posited that market participants in such a situation would notice that some goods are more āsaleableā than others. You can buy corn or cotton and then resell it quickly for a minimal (or no) loss. But for other goods, like surgical instruments, it might take a long time to find a buyerāif you tried to sell surgical instruments quickly, youād probably have to settle for a much lower price.
Market participants realize they can use more saleable goods as a step toward acquiring the goods they actually want for direct use. For example, you might bring surgical instruments to market, and intend to go home with a new toaster. Instead of going through the costly and time-consuming process of finding somebody who is selling a toaster and wants surgical instruments, you could more easily find somebody who wants surgical instruments and is willing to part with eggs, a more saleable good. Then you take the eggs to the person selling the toaster, and everyone lives happily ever after.
Eggs wouldnāt make the best money, so through a continuation of the process above, with trial and error and more and more people using one or two particular goods as a medium of exchange, we get money.
Why MMTers Reject Mengerās Theory
The theory is straightforward and uncontroversial, unless you are an MMTer. If you are an MMTer, you need money to be the stateās rightful plaything. You need money to be the stateās property and responsibility, not the marketās. You need to be okay with the state debasing the money or printing up more paper for the sake of expropriating resources from the private market economy.
Itās no wonder they attack Mengerās theory so vehemently.
Instead of offering an alternative theory (the only ātheoryā on the origins of money I can find in their literature is a collection of assertions like āmoney is whatever the state collects in taxesā), MMTers point to historical case studies. One of their favorites is the clay cuneiform tablets from ancient Mesopotamia. Hereās what Randall WrayĀ has to sayĀ about them:
The clay shubati (āreceivedā) tablets recordā¦debts. Each tablet indicated a quantity of grain, the word shubati, the name of the person from whom received, the name of the person by whom received, the date, and the seal of the receiver.⦠the ācase tabletsā could and did circulate. A debt could be cancelled and taxes paid by delivering a tablet recording anotherās debt, whereupon the case which recorded the cancelled debt could be broken to verify the debt terms.
Wray doesnāt cite any translations or interpretations of these tablets, nor does he cite any specific archeological work. He only cites a like-minded economist,Ā A. Mitchell Innes. Innes doesnāt cite any specific historical research on the tablets either. He just asserts that āthey correspond to the medieval tally and to the modern bill of exchangeā and that the tablets āno doubt passed from hand to hand.ā
Money in the Ancient Near East
Instead of taking Wray and Innes at their word, I decided to check out what historians and archeologists of that period actually say about the tablets and the Mesopotamian economy. Hereās what I found:
As far as I can tell, virtually all historians of this period say thatĀ silverĀ was used as money in pre-coinage Ancient Near East, not clay tablets. Regarding this consensus,Ā PowellĀ says:
Money, of course, did exist in ancient Mesopotamia.[ā¦] Usage of terms like āmoney,ā ācurrency,ā ācash,ā etc. by cuneiformists to describeĀ silverĀ is so ubiquitous in the literature of the last century and a half that, if money were not recorded in cuneiform documents, one would have to make the improbable inference that everyone who had used this term had entirely misunderstood the texts.
RahmstorfĀ provides a great overview of the archaeological evidence. He also agrees with the overwhelming consensus among historians of the period that silver was money. The dominance of āhacksilverā (broken pieces of silver) is so clear in the textual and archeological record that Rahmstorf questions whether coinage can really be considered a substantial monetary innovation. Silver was weighed in most transactions pre- and post-coinage, and coins appear in otherwise similar hacksilver hoards from before coins entered the scene. Thus, the monetary unit was clearly based on a weight of silver (e.g., the shekel and the mina).
Speaking of weight,Ā Ialongo et al.Ā showed that the pieces of silver in the hacksilver hoards corresponded to known standardized weights of the time and their multiples: āThe results of the statistical analyses on a silver hoard from Ebla (Syria) strongly suggest that hacksilver in the Bronze Age Near East was shaped and/or fragmented in order to comply with the weight-systems that were in use in the trade networks where it circulated.ā
LeemansĀ said the tablets remained in the possession of those who received themāthey were not used to transfer debts. Bonus: some of Leemansā translations show that the ancient Mesopotamians usedĀ silverĀ to calculate profit.
Taxes were not paid with the tablets, nor were they paid in silver. Taxes were paid in-kind, especially with livestock and grains.Ā SharlachĀ said, āthe transfers between the province and the crown were not āpaperā transactionsā¦vast cargoes were in fact transported.ā This means that the MMTers are doubly wrong: 1) regarding their claim that the tablets were used to pay taxes; and, 2) regarding their claim that taxes drive the demand for money. Silver was used as money but taxes were collected in-kind in the Ur III dynasty.
In the dozens of articles I read on the clay tablets, I found no mention that the tablets were moneyāno mention that the tablets were exchanged at all.
In short, the historical evidence vindicates Menger and vitiates the MMTers. The clay tablets were not an early fiat money. They were receipts that overwhelmingly showed people using silver as moneyāa commodity with non-monetary usesājust as we would expect based on Mengerās theory.
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