October 28, 2019
MMT is presented as the solution to the "problem" of insufficient government funding, but that's not the real problem.
Modern Monetary Theory (MMT) is presented as a means to painlessly fund the large-scale infrastructure / alternative energy spending the nation needs to rebuild and modernize.
While most people support the goal of useful fiscal stimulus (as opposed to paying people to dig holes and fill them), the question remains: Will MMT work as advertised?
Rather than dismiss it out of hand, Im trying to approach the subject without ideological bias.
What Exactly Is MMT?
The basic idea of MMT (as I understand it) is that the economy is not running at 100% capacitythere is capital, equipment, people and resources which could be put to work to better society, and the chief impediment to making full use of our capacity is a lack of funding for projects that would benefit society.
In other words, the only thing standing in the way of broad-based, socially beneficial spending / progress is a lack of money (funding).
In the view of MMT advocates, a blindingly obvious source of funding is already available: the federal government can issue however much new currency it wants, and so the government could fund large-scale socially useful projects if the political will to do so was present.
We have to pause at this point and distinguish between borrowing money to fund projects, which is the current model, and issuing (printing) new currency.
In the current model, the federal government sells Treasury bonds and uses the proceeds to fund government spending. The Treasury pays interest on the bonds, and this mechanism interest due on borrowed money creates a governor on spending: as borrowing rises, so do interest payments, and as interest payments rise, this crimps other government spending.
The other mechanism in the current model is the central bank (Federal Reserve) can create currency out of thin air and buy Treasury bonds. This is a form of monetary stimulus, i.e. a way to inject new money into the financial system.
When the central bank creates money out of thin air to buy newly issued Treasury bonds, this is called monetizing the debt: in effect, the central bank creates money out of thin air and transfers it to the government by buying Treasury bonds.
The basic idea of MMT (as I understand it) bypasses both paying interest on newly issued money and the artifice of central bank monetization: instead, the Treasury issues new currency directly.
This removes the governor of interest payments, freeing the Treasury to issue cost-free currency in virtually unlimited quantities.
The Arguments Against MMT
Various historical studies have concluded that hyperinflation does not occur when governments must pay interest on their debt; the danger with rising interest and debt is default, not hyperinflation.
Hyperinflation arises when the supply of goods and services the output of the economy remains roughly the same while the supply of currency skyrockets. As money increases but the sum of goods and services available for purchase remains flat, the value of existing money declines accordingly.
If the supply of money in an economy is $1 billion, each unit of currency buys X (the purchasing power of each unit of currency). If the money supply is doubled without any expansion in the consumers pool of goods and services, the purchasing power of each unit of currency falls in half. This reduction in the purchasing power of each unit of currency is called inflation.
Governments facing soaring demands and limited tax revenues are naturally tempted to meet these demands with free new currency, since the political and financial pain caused by skyrocketing taxes leads to governments being tossed from power.
This temptation explains the regular occurrence of hyperinflation and debt default, as the temptation to over-borrow and pile up interest payments leads to governments defaulting on their debt. In both cases hyperinflation and debt default theres a currency/ governance/ financial crisis that upends the status quo.
This is one common objection to MMT: the freedom to issue new currency is difficult to limit, as there will always be more demands for government spending. Without some governor to limit the issuance of new currency to align with the expansion of goods and services, then governments tend to issue new currency far in excess of what the real economy is creating. This generates inflation, which impoverishes everyone using the currency.
MMT advocates claim that since MMT generates goods and services, it wont generate inflation. But as noted earlier, rebuilding a bridge doesnt actually create any new goods and services, or increase productivity: it generates wages and consumes materials and energy. Since it doesnt generate more consumable goods and services, the expansion of wages and demand for materials will drive prices higher.
The core difficulty here is that the democratic political process is intrinsically skewed to short-term, politically expedient dynamics: politicians focus by necessity on winning re-election, and they will naturally approve new issuance of currency and new spending to placate the demands of constituents, lobbyists and campaign donors.
I honestly dont see any intrinsic limit on political expediency. Politicians need to be forced to say, I know your need is legitimate, but the moneys simply not there. Without some real-world limit on the issuance of new money, money will be issued in surplus because the issuance isnt an economic process, its a political process.
This is a fatal flaw in MMT. Relying on politicians to impose limits on their own desire to win re-election is to deny human nature.
A second concern is the entire notion of slack in the economy untapped capacity. Have you noticed the help wanted signs in every Home Depot and many other retail outlets and restaurants? We read about millions of people who arent working, but if they wanted to work, or had to work, why are there so many unfilled positions? The answers are complex: the wage being offered isnt sufficient incentive, the unemployed dont have the requisite skills, etc.