The interest-rate corridor provides reference points for short-term money markets. Its boundaries concern central-bank instruments, not the minimum and maximum price of every commercial bank product.
The lower boundary relates to banks placing funds with the central bank; the upper boundary relates to obtaining short-term liquidity. The refinancing rate conveys the main policy signal. Eligibility, maturity and collateral depend on the instrument’s rules, which cannot be replaced by three headline numbers.
| Parameter | Purpose |
|---|---|
| Floor | Reference for placing short-term liquidity |
| Policy rate | CBAR’s main policy signal |
| Ceiling | Reference for obtaining short-term liquidity |
Imagine a 5–7% corridor with a 6% policy rate. These are teaching figures, not CBAR’s current rates. A business loan priced at 12% would not breach a general loan cap merely by exceeding 7%. Its maturity, borrower risk and operating costs differ from those of a central-bank liquidity facility.
CBAR announces policy parameters, while interbank rates respond to those conditions and to liquidity. AZIR helps show what happens in the market. An unchanged policy rate alongside a shift in short-term market rates can still mean that monetary conditions have changed. Read both the policy decision and the market evidence.
A central bank can change one boundary or the width of the corridor without moving all three rates equally. Compare each parameter with the previous decision. A move from 6% to 5.75% is a fall of 0.25 percentage points, or 25 basis points, not a fall of 0.25%.
Check the effective date, all three rates and the central bank’s explanation. Then compare AZIR, transaction volumes and banking rates. Retail deposit and loan prices may react with a delay and differently across products. Predicting an identical reduction in every loan rate would go beyond what the decision establishes.
No. It is a parameter of monetary-policy instruments, not a universal ceiling on commercial lending prices.
No. Liquidity operations, expectations and actual money-market rates also matter.
The explainer is checked against these institutional and industry sources. Links open the original material.