At the Foundation for Economic Education, Kellen McGovern Jones outlines the rapid rise of MMT as “the answer to everyone’s problems” in the last few years and all the predictable problems it has sown in its wake:
“Inflation & Gold” by Paolo Camera is licensed under CC BY 2.0 
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Modern Monetary Theory (MMT) was the “Mumble Rap” of politics and economics in the late 2010s. The theory was incoherent, unsubstantial, and — before the pandemic, you could not avoid it if you wanted to.
People across the country celebrated MMT. Alexandria Ocasio-Cortez, the Democrat Congresswoman from New York heralded MMT by proclaiming it “absolutely [must be] … a larger part of our conversation [on government spending].” The New York Times and other old-guard news sources authored countless articles raising the profile of MMT, while universities scrambled to hold guest lectures with prominent MMT economists like Dr. L. Randall Wray. Senator Bernie Sanders went as far as to hire MMT economists to his economic advisory team.
The most fundamental principle of MMT is that our government does not have to watch its wallet like everyday Joes. MMT contends that the government can spend as much as it wants on various projects because it can always print more money to pay for its agenda.
Soon after MMT became fashionable in the media, the once dissident economic theory leapt from being the obscure fascination of tweedy professors smoking pipes in universities to the seemingly deliberate policy of the United States government. When the Pandemic Hit, many argued that MMT was the solution to the pandemics problems. Books like The Deficit Myth by Dr. Stephanie Kelton became New York Times bestsellers, and the United States embarked on a massive spending spree without raising taxes or interest rates.
Attempting to stop the spread of Covid, state and federal governments coordinated to shut down nearly every business in the United States. Then, following the model of MMT, the federal government decided to spend, and spend, and spend, to combat the shutdown it had just imposed. Both Republican and Democrat-controlled administrations and congresses enacted trillions of dollars in Covid spending.
It is not hard to see that this spray and pray mentality of shooting bundles of cash into the economy and hoping it does not have any negative consequences was ripe for massive inflation from the beginning. Despite what MMT proponents may want you to believe, there is no way to abolish the laws of supply and demand. When there is a lot of something, it is less valuable. Massively increasing the supply of money in the economy will decrease the value of said money.
MMT economists seemed woefully unaware of this reality prior to the pandemic. Lecturing at Stoney Brook University, Kelton attempted to soothe worries about inflation by explaining that (in the modern economy) the government simply instructs banks to increase the number of dollars in someone’s bank account rather than physically printing the US Dollar and putting it into circulation. Somehow — through means that were never entirely clear — this fact was supposed to make people feel better.
In reality, there is no difference between changing the number in someone’s bank account or printing money. In both cases, the result is the same, the supply of money has increased. Evidence of MMTs inflationary effects are now everywhere.
