The price of a quarrel in public

According to CNBC, the Federal Reserve raised interest rates by a quarter point unanimously, doing so in the teeth of repeated presidential demands for lower rates. Governor Warsh and his colleagues held the line. The president was not pleased. That much appears to be established fact; everything I say about the longer consequences is inference, not recollection — I did not live through the years that built this institution into what it is today.

But the underlying tension is not new, and the economics of it are ones I spent a good deal of my life thinking through. A central bank's most valuable asset is not its balance sheet — it is the belief, held by every participant in every market, that its decisions are made on the merits of the macroeconomic situation rather than on the preferences of whoever occupies the executive mansion this week. That belief, once shaken, is extraordinarily expensive to restore. You cannot simply announce that credibility has returned; it must be earned back through years of demonstrated independence, and the cost of those years is paid not by the politicians who did the shouting but by the workers and firms who find that inflation expectations have become unanchored.

Now, I want to be fair to the president's instinct, even while disagreeing with his conduct. There is a legitimate macroeconomic argument that in certain conditions — when inflation is softening and demand is fragile — a central bank that raises rates may be acting with excessive caution, mistaking the lag effects of prior tightening for a still-live inflationary threat. I have always maintained that the pursuit of low inflation alone is an inadequate goal for a monetary authority; full employment carries moral and political weight that a simple price-stability mandate can crowd out. If the president believes the Fed is causing unnecessary unemployment, that is an argument worth making — through testimony, through economic counsel, through the ordinary machinery of democratic persuasion.

What it is not worth making through is a public campaign of personal intimidation directed at the chair. The distinction matters enormously. One is a debate about the appropriate reaction function; the other is a threat to the institutional architecture itself. By CNBC's account, the rate rise was unanimous — which suggests the Fed governors read the pressure as a reason to demonstrate resolve, not to capitulate. That is, on balance, the correct instinct. A central bank that moves in response to political temperature rather than economic data has already, in the only sense that matters, lost its independence.

I am humbled by the technical complexity of modern central banking — the scale of balance sheets, the mechanics of quantitative tightening, the instruments available to a twenty-first-century Fed that were simply not in existence in my time. I will not pretend to adjudicate those details. But the macroeconomic principle is not technical: when a government openly works to subordinate monetary policy to electoral convenience, it imports all the short-term bias of the political cycle into what must be a longer-horizon institution. The result, historically, is not lower unemployment — it is an inflation problem that eventually demands a far more brutal correction than the one that was avoided.

The durable lesson of Bretton Woods, of every serious attempt to design monetary architecture, is that credibility is a public good — it belongs to the whole economy, not to the sitting government. It must be designed, defended, and occasionally defended loudly, even at political cost. The Federal Reserve appears to have done that this week. The question CNBC's account leaves open — and which I mark plainly as inference — is whether the institutional norms that make such defence possible will survive the sustained pressure being applied to them. That is not a technical question. It is a political one, and its answer will be written in the economic data of years I will not see.