The Trolley Car Problem- Part 1 The Fed’s Predicament

By Michael Lebowitz | July 6, 2022

An unstoppable trolley car is barreling down the track. As the switchman, you stand at the junction where the track branches into two and you must choose which path the trolley will follow. Unfortunately, people are tied to both tracks, making the decision incredibly difficult. 

The trolley car problem is an ethical question that forces one to choose between two poor consequences. 

The Fed and many other central banks face trolley car problems, albeit lives are not on the line. With inflation running hot and economic activity faltering, years of questionable monetary policy force central bankers to make tough decisions. The last time such tricky decisions were made most policymakers were in school or just starting their careers.

Given the extreme debt accumulation of the last 40 years and the heightened speculative nature of financial markets, their choices may be the most important monetary policy actions we see in our lifetimes. These decisions will likely have outsized effects on the investment environment today and possibly for some time.

Rubber Band Theory

Let’s move from ethics to physics and introduce a second theory, the rubber band effect. When you stretch a rubber band, it builds up energy. The longer the stretch, the more energy it builds. When the rubber band can’t be stretched anymore, energy releases forcefully in the opposite direction.

For the last 40 years, most developed nations have fostered an unsustainable debt growth cycle. Debt was increasingly encouraged as the primary fuel for economic growth and prosperity. As the cycle wore on, debt became less productive. In a steadily increasing number of cases, the applications of the borrowed money could not support the borrowers’ ability to pay interest or repay the principal on the debt.

Instead of letting the rubber band release its pent-up energy, policymakers chose to keep stretching the debt cycle. They consistently chose a more aggressive monetary policy over letting irresponsible debtors go bankrupt. Meager and even negative interest rates along with QE fostered growing amounts of unproductive debt and allowed marginal borrowers the ability to remain solvent.   

The handiwork of the central bankers was possible because there were few consequences for their actions. That changed in 2021.

This two-part article tells the tale of three central banks, their grossly stretched debt cycles, and the trolley car problems they now face.

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The Three Musketeers

The Federal Reserve, European Central Bank (ECB), and the Bank of Japan (BOJ) are confronting significant inflation, weakening economic growth, and bear markets in their stock markets. Despite similar challenges, they are taking vastly different approaches.

Central banks fight high inflation by increasing interest rates and reducing their bond holdings (QT). The objective is to stifle demand for goods and slow economic activity. Conversely, weakening economic activity is usually met with lower interest rates and bond purchases (QE) to encourage borrowing and spending. What has worked so well in the past is awkward today. Inflation is on the rise, and economic growth is rapidly slowing. Central banks can fight inflation or try to bolster the economy, but not both.

Making matters more demanding, they must also consider the fallout of their decisions on their respective currencies and capital markets. Adding to the pressure, they must remain highly mindful of the overstretched debt cycle.  

The diagram below by Lily Lebowitz helps us visualize the Fed’s trolley car problem. Jerome Powell can tackle inflation but risk a recession and lower stock prices. Or he can try to avoid a recession and risk persistently high inflation.

trolley car problem jerome powell

Comparing Central Banks

Jerome Powell- Federal Reserve

At his June 15, 2022, FOMC policy press conference Jerome Powell made it evident the Fed will aggressively use its tools to their fullest extent to reduce inflation back to 2%. He was also clear unemployment may rise as a result.

  • We at the Fed understand the hardship high inflation is causing. We are strongly committed to bringing inflation back down, and we are moving expeditiously to do so. We have both the tools we need and the resolve it will take to restore price stability on behalf of American families and businesses.
  • If you don’t have price stability, the economy’s really not going to work the way it’s supposed to and it won’t work for people, their wages will be eaten up. So we want to get the job done.
  • So, a 4.1 percent unemployment rate (current 3.6%) with inflation well on its way to 2 percent, I think that would be, I think that would be a successful outcome. So, we’re not looking to have a higher unemployment rate, but I would say that I would certainly look at that as a successful outcome
  • We don’t seek to put people out of work, of course, we never think too many people are working and fewer people need to have jobs, but we also think that you really cannot have the kind of labor market we want without price stability.

The Fed’s Misunderstanding

The Fed desperately wants to break inflation’s back. The problem making their task very difficult is that they grossly underestimated the persistent nature of inflation.  

We understand better how little we understand inflation“- Jerome Powell 6/29/2022

Throughout 2021, speculative activities flourished, economic activity was brisk, and inflation rose. Many, including ourselves, said the Fed must quickly pull back on the monetary policy reins. Despite stimulus-driven demand and significant supply line problems, the Fed kept interest rates at zero and bought $120 billion in bonds per month.

The price for their blunder is higher and more persistent inflation than would have been. As a result, economic activity stagnates, asset prices fall, and consumer/business confidence erodes rapidly.

The Fed’s Mandate

The graph below shows the Fed’s predicament. The red dot is the Fed’s objective as mandated by Congress. While exact levels of unemployment and inflation are not quantified, the Fed considers them to be a 4.1% unemployment rate and 2.0% core inflation rate. The other dots show each monthly intersection of unemployment and core prices since 2000.

fed mandate unemplyoment prices

For the last 20 years, as shown by the blue dots, the Fed was often tasked with reducing unemployment and frequently wanted more inflation. Other than a brief instance or two, the Fed never worried about high inflation.

Per CNBC 2019: “In order to move rates up, I would want to see inflation that’s persistent and that’s significant,” Powell said at a news conference in Washington. “A significant move up in inflation that’s also persistent before raising rates to address inflation concerns: That’s my view.”

The Fed’s Dilemma

As the yellow dots highlight, the Fed must now tackle the highest inflation rates in 40 years while the unemployment rate is slightly below target. Based on Powell’s recent comments, he is willing to increase unemployment to bring inflation back to its target.

First-quarter GDP was negative 1.6%. Based on the Atlanta Fed’s GDPNow forecast, second-quarter GDP growth may also be negative.

atlanta fed gdpnow dilemma

U.S. stock markets are in bear market territory as investors watch the Fed tighten policy despite faltering economic growth. For most investors, this is new ground. Over the last 20+ years, they grew accustomed to a Fed that reliably eases at the first hint of economic weakness. The new paradox is causing investors to lose confidence. Making matters more onerous for the Fed, bond yields have risen rapidly, adding to economic pressures and financial stability.

The Rubber Band Keeps Stretching

As a result of the pandemic and continued debt growth in the post-financial crisis era, the economy now has twice as much government debt as a percentage of GDP than in 2008. Corporate debt to GDP is also at record highs. The economy and livelihood of many borrowers are now much more reliant on low-interest rates. Unlike 2008, when lower interest rates and QE saved many struggling borrowers, reducing interest rates and QE are not viable as inflation is raging.

federal debt gdp rubber band

The Fed is opting to send the trolley car on the recession track and hopefully temper inflation. This harsh decision doesn’t bode well for the economy or financial markets. However, there is hope.

The Fed has been accommodative in the past when financial stability and economic problems arose. As such, will the financial markets and the economy cry uncle loud enough to get the Fed to change its policy?

It is possible the Fed partially un-stretches the rubber band with limited economic and market costs. However, that ability rests on inflation. If inflation declines enough, the Fed may be able to revert back to an easy monetary policy and keep the extended debt cycle intact.

If inflation is not as friendly, though, the Fed may continue to travel down the trolley track which sacrifices the economy and financial markets to tame inflation. That is the scenario that snaps the debt cycle rubber band and keeps us up at night.

“Until we see tangible evidence of a decline in inflation back to target, nobody should count on central bankers to reverse course.” – Brett Freeze

Summary Part one

We end part one with a quote from President John F Kennedy.

“There are risks and costs to action. But they are far less than the long-range risks of comfortable inaction.”

As we detail above and discuss further in part two, there are significant risks to the actions the Fed is taking, and other central bankers are contemplating. However, as Kennedy says, doing nothing, which has been the status quo, presents even greater risks.

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Michael Lebowitz, CFA is an Investment Analyst and Portfolio Manager for RIA Advisors. specializing in macroeconomic research, valuations, asset allocation, and risk management. RIA Contributing Editor and Research Director. CFA is an Investment Analyst and Portfolio Manager; Co-founder of 720 Global Research. 

Follow Michael on Twitter or go to for more research and analysis.
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