base rate
C1Formal, Technical, Business, Academic
Definition
Meaning
The standard interest rate set by a central bank, upon which other interest rates in the economy are based.
The fundamental or starting point rate in a system; can refer to the default probability in risk assessment (base rate fallacy), or the initial, unadjusted rate before additional factors are applied.
Linguistics
Semantic Notes
Primarily a financial/economics term. In psychology/statistics, refers to the prior probability of an event, leading to the 'base rate fallacy' where this probability is ignored.
Dialectal Variation
British vs American Usage
Differences
In the UK, 'base rate' most commonly refers to the Bank of England's official interest rate. In the US, the equivalent term is often the 'federal funds rate' or 'prime rate', though 'base rate' is understood in financial contexts.
Connotations
In the UK, it has strong connotations for mortgages, savings, and the general cost of borrowing. In the US, it is more of a technical financial term among professionals.
Frequency
Higher frequency in UK media and everyday conversation due to its direct impact on variable-rate mortgages. Less frequent in general American media.
Vocabulary
Collocations
Grammar
Valency Patterns
The [central bank] set/raised/cut the base rate.The base rate is currently [X]%.Mortgage payments are linked to the base rate plus [Y].Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Base rate fallacy (psychology/statistics)”
Usage
Context Usage
Business
The quarterly report discussed the potential impact of a rising base rate on our debt servicing costs.
Academic
The study examined the base rate neglect phenomenon in clinical decision-making.
Everyday
If the base rate goes up again, our mortgage payment will increase by fifty pounds a month.
Technical
The model discounts future cash flows using a risk-free rate derived from the central bank's base rate.
Examples
By Part of Speech
verb
British English
- The Monetary Policy Committee is expected to base-rate the cost of borrowing.
- They base-rated the loan at 2% above the official figure.
American English
- The Fed's decision effectively base-rated the entire credit market.
- The agreement base-rates the interest to the prime.
adverb
British English
- The loans are priced base-rate plus a margin. (functionally adverbial)
American English
- The credit is offered base-rate linked.
adjective
British English
- We offer a base-rate tracker mortgage.
- The base-rate decision is due next Thursday.
American English
- The loan has a base-rate linked adjustment clause.
- They are sensitive to base-rate fluctuations.
Examples
By CEFR Level
- The news said the base rate might change.
- Our loan interest depends on the base rate.
- The central bank increased the base rate to combat inflation, making loans more expensive.
- Many savings accounts offer interest at 0.5% above the base rate.
- Economists are divided on whether the base rate hike will successfully curb consumer spending without triggering a recession.
- Investors discounted the future earnings using a model that incorporated the projected path of the base rate.
Learning
Memory Aids
Mnemonic
Think of a BASE in baseball – it's the starting point you must touch. The BASE RATE is the starting point for all other interest rates.
Conceptual Metaphor
FOUNDATION (The base rate is the foundation upon which the structure of other rates is built).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct translation as 'базовый рейтинг' (that's 'basic rating'). Correct terms are 'базовая ставка' (finance) or 'априорная вероятность' (statistics).
Common Mistakes
- Using 'base rate' to mean a cheap or basic price for a product/service (e.g., 'The base rate for the hotel room is...').
- Confusing 'base rate' with 'exchange rate'.
Practice
Quiz
What is the 'base rate fallacy' in psychology?
FAQ
Frequently Asked Questions
Not exactly. The base rate is set by the central bank. Your loan's interest rate is typically the base rate plus an additional percentage (a 'margin') set by your bank.
In the UK, it's set by the Monetary Policy Committee (MPC) of the Bank of England. In the US, the Federal Open Market Committee (FOMC) sets the target for the federal funds rate, which serves a similar purpose.
In statistics and psychology, it refers to the underlying, prior probability of an event occurring in a given population, before specific evidence is considered. Ignoring it leads to the 'base rate fallacy'.
The governing committee (e.g., MPC, FOMC) meets regularly, typically every 4-8 weeks, to decide whether to change the rate. It can remain unchanged for long periods.