Anh

rationality

gb/ɹˌæʃənˈælɪti/ us/ɹˌæʃənˈælɪti/
C1 Anh
Các nghĩa
0 nghĩa
Danh từ formal C1 property
1

reasonableness and logic

the quality of thinking or acting in a logical and sensible way

Mẫu sử dụng: the rationality of [something]; [someone's] rationality
Lỗi thường gặp:
Do not use rationality to mean the reason or explanation for something; use rationale.
Từ đồng nghĩa
reasonableness (emphasizes being sensible and fair) | logic (emphasizes clear reasoning more than sensible behavior) | sanity (less formal and often means practical good sense)
Từ trái nghĩa
irrationality (lack of reason or logical control) | unreasonableness (failure to be sensible, fair, or logical)
Cụm từ đi kèm
question the rationality |doubt the rationality |defend the rationality |the rationality of a decision |the rationality of a policy |calm rationality |scientific rationality |pure rationality |basic rationality |maintain rationality
Chủ đề
reasoning |decision_making |logic |behavior
Ví dụ
  • Many voters questioned the rationality of spending so much money on the project.
  • The plan has a certain rationality, even if some of its details are unpopular.
  • In a crisis, fear can make it difficult to maintain calm rationality.
Ví dụ cho người học
  • We need rationality, not panic.
  • I do not understand the rationality of that decision.
Danh từ formal C1 abstract
2

capacity for reasoned thought

the ability to think clearly and make decisions for logical reasons

Mẫu sử dụng: [human/individual/collective] rationality; the limits of [someone's] rationality
Lỗi thường gặp:
Rationality is usually uncountable. Academic writers may say rationalities when discussing different kinds or systems of reasoning.
Từ đồng nghĩa
reason (the general human faculty of logical thought) | reasoning ability (more direct and less abstract) | judgment (focuses on making good decisions)
Từ trái nghĩa
irrationality (thinking or acting without proper reason) | impulsiveness (acting quickly from feeling rather than thought) | instinct (automatic response rather than deliberate reasoning)
Cụm từ đi kèm
human rationality |individual rationality |collective rationality |limited rationality |the limits of rationality |capacity for rationality |models of rationality |standards of rationality |forms of rationality |nature of rationality
Chủ đề
psychology |reasoning |mind |decision_making
Ví dụ
  • The book explores whether artificial intelligence can display genuine rationality.
  • Stress and lack of sleep can reduce our rationality.
  • Philosophers have long debated the nature and limits of human rationality.
Ví dụ cho người học
  • Humans do not always use their rationality.
  • Tiredness can affect your rationality.
Danh từ technical C2 rule
3

goal-directed optimal choice

the economic idea that people make choices that consistently serve their goals or interests

Mẫu sử dụng: assume rationality; a model of rationality; rationality in [economics/decision theory]
Lỗi thường gặp:
In this use, rationality does not mean kindness or morality; it means consistent goal-directed choice.
Từ đồng nghĩa
utility maximization (narrower economic term for choosing the option with the greatest expected benefit) | optimizing behavior (emphasizes selecting the best available option) | consistent choice (emphasizes stable preferences and logical decisions)
Từ trái nghĩa
irrational behavior (choices that do not follow consistent reasoning or preferences) | cognitive bias (systematic mental error that can prevent fully rational choice)
Cụm từ đi kèm
assumption of rationality |rationality assumption |perfect rationality |strict rationality |economic rationality |instrumental rationality |bounded rationality |consumer rationality |models of rationality |depart from rationality
Chủ đề
economics |decision_theory |business |psychology |social_science
Ví dụ
  • Traditional economic models often assume perfect rationality.
  • Behavioral economists study where human choices depart from strict rationality.
  • The pricing model relies on a narrow idea of consumer rationality.
Ví dụ cho người học
  • The theory assumes rationality in buyers and sellers.
  • Real people often do not show perfect rationality.
Ngữ pháp
Dạng từ điển
rationality
IPA
GB/ɹˌæʃənˈælɪti/
US/ɹˌæʃənˈælɪti/
Âm tiết và trọng âm
ra - tion - al - ity (4 âm tiết)
Stress on 3rd syllable (al)
Các dạng từ
Noun
  • Base: rationality
  • Plural: rationalities, rationality
Cách diễn đạt

bounded rationality

1
/bˈaʊndɪd ɹˌæʃənˈælɪti/
fixed phrase technical

limited rational decision-making

the idea that people make the best decision they can, but their knowledge and thinking time are limited

Ví dụ
  • The company used the concept of bounded rationality to explain why managers sometimes choose a satisfactory option rather than the best possible one.
  • Bounded rationality helps explain why consumers do not always compare every available product.
  • In real markets, bounded rationality is often more realistic than the assumption of perfect information.

economic rationality

1
/ˌɛkənˈɑmɪk ɹˌæʃənˈælɪti/
fixed phrase technical

self-interested economic reasoning

making choices mainly to get the best economic result

Ví dụ
  • From the viewpoint of economic rationality, closing the factory saved the company money.
  • The policy was criticized for treating economic rationality as more important than social welfare.
  • Consumers do not always behave according to simple economic rationality.

instrumental rationality

1
/ˌɪnstɹəmˈɛntəl ɹˌæʃənˈælɪti/
fixed phrase technical

efficient means-end reasoning

thinking logically about how to reach a goal, without asking whether the goal is right

Ví dụ
  • Instrumental rationality can explain why the strategy worked, but it cannot show whether the goal was ethical.
  • The debate contrasted instrumental rationality with moral reasoning.
  • A purely instrumental rationality may value efficiency over human needs.

rationality assumption

1
/ɹˌæʃənˈælɪti əsˈʌmpʃən/
fixed phrase technical

assumption of rational behavior

the idea in a model that people or companies will make logical choices that support their goals

Ví dụ
  • The rationality assumption makes the model easier to analyze but less realistic.
  • Behavioral economics challenges the rationality assumption in traditional theory.
  • The forecast depends heavily on a strong rationality assumption about consumers.

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