When to Wait, When to Act
The practical problem for a central bank is not choosing between “doing something” and “doing nothing.” It is deciding whether the evidence is strong enough to let a temporary energy movement pass, or whether delay is allowing a broader inflation process to form. This chapter turns the earlier diagnosis into a conditional decision model: what would make patience defensible, what would make earlier action more defensible, and how the stance should change when new evidence changes the balance of risks.
Patience Needs Evidence
Waiting is an active policy choice when an energy shock arrives. It rests on a forecast that the first-round movement will reverse or remain contained before monetary policy has time to work, and that the economy can absorb the interim pressure without a damaging shift in expectations or activity. The forecast need not be certain. It must be sufficiently credible relative to the costs of tightening too soon.
The first supporting signal is a plausible path back toward normal supply. In the recent conflict, the BIS noted that oil prices moved toward pre-conflict levels after their initial rise, although volatility remained high. Earlier conflict-related increases also retrenched when fighting ended or alternative supplies became available. Those comparisons make a reversal possible, not inevitable. A central bank looking through the shock would need to judge whether reserves, alternative routes, and infrastructure conditions make that historical pattern relevant to the current event.
The second signal is containment beyond the energy component. If core inflation remains relatively stable, firms do not broadly change their pricing behaviour, and households’ inflation expectations remain anchored, the direct energy movement is less likely to become self-reinforcing. The word “anchored” does not mean that no one notices higher fuel or heating costs. It means that people do not broadly revise their view of future inflation in a way that changes wage and price decisions across the economy.
The third signal is tolerable damage to output and employment. A supply disruption can reduce real income and production even if broader inflation remains contained. If activity is weakening sharply, waiting may protect price stability at the cost of an unnecessarily deep contraction. Conversely, if the economy remains resilient and the employment risk is limited, the cost of allowing a temporary price movement to pass may be lower. The judgement is about the joint path of underlying inflation and activity, not about one favourable indicator.
Country context determines how much evidence is enough. An energy importer facing currency depreciation and high energy intensity may have less room to wait because the original price movement reaches domestic costs and incomes more strongly. An energy exporter may receive higher export income and currency appreciation, which can cushion the shock, although disruption to its own production can remove that benefit. A tighter starting monetary stance and relatively low demand can moderate pass-through; above-target expectations or a loose fiscal position can make waiting less safe.
Fiscal support requires a separate reading. A subsidy can shield households from the immediate energy price while supporting demand. A price cap can limit the direct price pass-through while the underlying resource constraint remains.