DEMAND-PULL VS COST-PUSH
Textbook inflation comes in two flavors. Demand-pull is too much money chasing too few goods — rate hikes work. Cost-push is supply shocks raising input prices regardless of demand — rate hikes mostly just crush output.
THE NIGERIAN STACK
Nigeria removed the petrol subsidy in May 2023 and floated the naira the same year. Both shocks fed straight into transport and import costs. The CBN then chased the resulting inflation with rate hikes from 11.5% to 27.5% — the steepest tightening cycle in the bank's history.
WHY MANUFACTURERS SCREAM FIRST
At 26.5%, working-capital loans price above almost any manufacturing margin. Nigerian factories run on imported inputs financed in naira credit; when the policy rate doubles, the spread between borrowing cost and return on inventory inverts and production winds down before inflation does.
THE FISCAL DOMINANCE PROBLEM
Monetary tightening only works if fiscal policy cooperates. When the treasury runs large deficits — Nigeria's pre-election spending fits — the central bank pushes rates up while the government pushes liquidity in. The two cancel, and the private sector pays the friction cost.
THE PEER PATTERN
Emerging markets that hiked aggressively against supply-side inflation have a common story: currency stabilizes, headline CPI eases, but credit to industry collapses and GDP underperforms for years.
WHAT ACTUALLY FIXES SUPPLY
Cost-push inflation needs supply-side answers: refinery capacity (Nigeria imports refined fuel despite producing crude), port throughput, power generation, and FX market depth. Each of these is a multi-year fix; rate decisions are a monthly headline.