问题


There is a single choice question about high school microeconomics. Answer the question by replying A, B, C or D.
Question: The law of increasing costs is useful in describing
A. a demand curve.
B. a marginal benefit curve.
C. a linear production possibility frontier.
D. a concave production possibility frontier.
Answer:

答案

模型 模型答案 正确答案
金声玉亮2.0

D
D
deepseekr1

The law of increasing costs explains that producing more of one good results in higher opportunity costs due to resource specialization. A concave production possibility frontier (PPF) reflects this by curving outward, showing that shifting resources between goods becomes less efficient. Linear PPFs (constant costs), demand curves, and marginal benefit curves do not illustrate increasing costs.

Answer: D
D
gpto1 D D
GPT-4o D. a concave production possibility frontier. D
llama3.1-70B-Instruct

D
D
llama3.1-405B-Instruct

D
D
DeepSeek-Coder-V2 D. a concave production possibility frontier. D
Qwen2-72B-Instruct D. a concave production possibility frontier. D
baichuan4 D D
doubao D

The law of increasing costs helps explain why a production possibility frontier is concave. As more of one good is produced, increasing amounts of the other good must be sacrificed, reflecting the increasing opportunity cost. A demand curve and a marginal benefit curve are not directly related to the law of increasing costs. A linear production possibility frontier does not show increasing costs.
D
minimax D. a concave production possibility frontier. D
kimi D. a concave production possibility frontier.

The law of increasing costs states that as a firm increases production of one good while keeping other productive factors constant, it will eventually have to use more of the variable input at an increasing rate. This law is often used to explain why the production possibility frontier (PPF) is concave, meaning that the opportunity cost of producing more of one good increases as more of it is produced.
D
wenxinyiyan D D
zhipu D. a concave production possibility frontier.

The law of increasing costs is best illustrated by a concave production possibility frontier (PPF). This shape indicates that as production of one good increases, the opportunity cost of producing additional units of that good also increases, which is the essence of the law of increasing costs.
D
gpto1 D D