The Murky Science of Inflation: Why Central Banks Are Grappling with a Crisis of Confidence
The recent surge in inflation across the US and globally isn’t just a monetary phenomenon; it’s a symptom of a deeper intellectual crisis within central banking.For decades, policymakers have relied on increasingly shaky foundations to understand and control price stability. As we head into a crucial period of Federal Reserve decision-making, it’s vital to understand why our current approaches are failing and what the potential consequences might be.
The core problem? A lack of consensus on what actually causes inflation.
the Failed Paradigms of Inflation Control
Traditionally, three main schools of thought have dominated the discussion. Each is now facing serious challenges:
* Monetarism: The oldest approach, popularized by milton Friedman, posits a direct link between the money supply and inflation. Though, this theory has become increasingly limited. the velocity of money (how quickly it circulates) is unpredictable, and the rise of private money creation complicates the picture. Simply controlling the quantity of money isn’t enough.
* Fiscal Theory of the Price Level (FTPL): Championed by economists like John Cochrane, FTPL argues that inflation devalues government debt. While intriguing, this theory is difficult to empirically verify, making it impractical for real-world policy. It’s a complex model that lacks the clarity needed for effective action.
* Expectations-Based Policy: This has been the dominant paradigm for the last few decades. The idea is simple: set an inflation target (typically 2%) and adjust interest rates to achieve it. This worked reasonably well during the “Great Moderation,” but now appears to be losing its grip.
The flaw in the expectations-based approach is a risky assumption: that simply declaring a target will make it happen. As former Bank of England Governor Mervyn King points out, this is akin to king Canute commanding the tides – a futile exercise in wishful thinking.Central bankers risk becoming “shamans,” relying on verbal intervention rather than sound economic principles.
The Current Landscape: Uncertainty and Conflicting Views
The breakdown of these traditional models leaves us in a precarious position. Rising inflation is forcing a re-evaluation of everything we thought we knew.
* Causality is Unclear: The relationship between monetary policy, fiscal policy, and inflation is incredibly complex.Ancient patterns offer limited guidance. As King wryly observes, high inflation historically correlates with high interest rates, and vice versa - a point seemingly lost on some politicians.
* Data Integrity Concerns: Even the data itself is under scrutiny. Some, like Fed Governor Stephen Miran, question the accuracy of inflation statistics.This erodes trust in the very metrics used to guide policy.
* A Divided Fed: Potential candidates for Fed leadership hold vastly different views.
* Stephen Miran emphasizes “regulatory dominance” as a key factor.
* Kevin Warsh advocates for a return to a narrow price stability mandate and a more monetarist approach.
* Christopher Waller leans towards a more dovish stance.
* Kevin Hassett,a favorite of former President Trump,consistently calls for rate cuts despite rising prices,a position widely criticized by mainstream economists.
This internal division highlights the lack of a unified intellectual framework within the Fed itself.
The Risk of “Voodoo Economics” and the Need for a New Approach
The situation is deeply concerning. We risk falling back into what some call “voodoo economics” - policies based on wishful thinking rather than sound economic principles.
The current debate isn’t just academic. It has real-world consequences for investors,voters,and the global economy.
What’s needed is a renewed focus on understanding the transmission mechanisms of monetary policy – how actions actually translate into changes in prices. We need to move beyond simply setting targets and hoping for the best.
As we watch Jay Powell and the federal Reserve navigate these turbulent waters, remember this: a crisis of confidence in central banking is brewing. And until policymakers address the intellectual hole at the heart of their thinking, we’re likely to see continued volatility and uncertainty in the years ahead.
Further Reading:
* The Fiscal Theory of the Price Level – John Cochrane
* [Central Bankers as shamans](https://www.ft.