Equilon FX
Field guide

One economy.
More than one interest rate.

A policy rate, a bond yield and the shape of a yield curve answer different questions.

Equilon FX · Reference edition / 25 Sep 2026 · 3 min read
SubjectRates & horizons
FormatMechanism + worked example
UseA framework for interpretation
In this guide
01

Attach a maturity to the rate

A yield curve plots yields across maturities for a specified set of instruments. The comparison should hold relevant characteristics as consistent as possible. Without a maturity and an instrument, “rates rose” can obscure whether a statement concerns overnight policy, short-dated securities or longer-term borrowing.

02

Level and slope can change independently

The general level of yields and the difference between short and long maturities are different observations. A curve can shift upward while becoming flatter, or shift downward while becoming steeper. Describe the maturities that moved rather than relying only on a shape label.

03

Expectations are part of the explanation

Longer-term yields can reflect expectations of future short-term rates and compensation for risks over the horizon. The relative importance of these influences is an analytical question. Reading every long-yield movement as an exact forecast of the next central-bank decision compresses several ideas into one.

04

A bond price and its yield are linked

For a fixed promised payment, a higher price implies a lower yield and vice versa, under the stated convention. Coupon bonds and different maturities require more detailed calculations. Keep the instrument and yield convention explicit when using that inverse relationship in an explanation.

05

Bring the currency comparison back in

A discussion of relative rates between countries should match maturities and relevant instruments. Comparing a policy rate in one country with a ten-year bond yield in another can answer a different question from the one the headline implies. Even a well-matched comparison is one input into an exchange-rate view.

HYPOTHETICAL / A THOUGHT EXPERIMENT

A flatter curve with higher yields

Imagine a two-year yield rising from 3% to 4% and a ten-year yield rising from 4% to 4.5%. Both yields rose, while the ten-minus-two-year gap narrowed from one percentage point to half a point. “Yields rose” and “the curve flattened” are consistent descriptions.

SEPARATE THE LAYERS

What kind of statement is this?

Rates & horizons / Mechanism + worked example / A framework for interpretation

A QUICK CHECK

The 2-year yield rises from 3% to 4%, and the 10-year from 4% to 4.5%. What happened to the 10y–2y slope?

Keep the language clear Three useful definitions

Yield curve — The relationship between yields and maturities for a specified set of debt instruments. Keep currency, credit quality and instrument conventions comparable. Read more ↗

Term premium — Compensation associated with bearing interest-rate risk over a longer horizon, relative to a path of short-term rates. It is estimated, not directly observed in isolation. Read more ↗

Basis point — One hundredth of a percentage point: 0.01 percentage points. A rate change from 4.00% to 4.25% is 25 basis points. Read more ↗

FOLLOW THE EVIDENCE

Original references.

  1. RBA: bonds and the yield curve ↗

Institutional descriptions were prepared against these references for this edition. Follow the source for current decisions, releases and methodology. Numerical examples on this page are illustrative.

Read this idea in context.

Keep this thought.

Open my notes ↗

Saved only in this browser. Nothing is sent to the publisher.

Follow a question.

Open the complete library ↗