问题


There is a single choice question about high school microeconomics. Answer the question by replying A, B, C or D.
Question: If total product of labor is rising at an increasing rate,
A. marginal product of labor is rising.
B. marginal product of labor is at its minimum.
C. marginal product of labor is at its maximum.
D. marginal cost is rising.
Answer:

答案

模型 模型答案 正确答案
金声玉亮2.0

A.		 A
deepseekr1

A. marginal product of labor is rising.

**Explanation**:
When the total product (TP) of labor rises at an **increasing rate**, the **marginal product of labor (MPL)**—the additional output from one more worker—must be **rising**. This is because the slope of the TP curve (which represents MPL) becomes steeper as TP accelerates.
- **Option A** is correct: Increasing TP at an increasing rate implies MPL is rising.
- **Option C** (MPL at maximum) is incorrect because MPL peaks when TP transitions from increasing at an increasing rate to increasing at a decreasing rate.
- **Option B** (MPL at minimum) and **Option D** (rising marginal cost) are inconsistent with TP accelerating, as a rising MPL typically corresponds to **falling marginal cost** (due to higher productivity).

Answer: **A**		 A
gpto1 A A
GPT-4o A. marginal product of labor is rising. A
llama3.1-70B-Instruct

A		 A
llama3.1-405B-Instruct

A.		 A
DeepSeek-Coder-V2 A A
Qwen2-72B-Instruct A. marginal product of labor is rising. A
baichuan4 A. marginal product of labor is rising. A
doubao A

When the total product of labor is rising at an increasing rate, it indicates that each additional unit of labor is contributing more to the total output than the previous unit. This means the marginal product of labor is increasing. Marginal cost is not necessarily rising in this situation. Marginal product being at its minimum or maximum is not correct based on the given information.		 A
minimax A. marginal product of labor is rising. A
kimi A. marginal product of labor is rising.

The marginal product of labor refers to the additional output produced by using one more unit of labor. If the total product of labor is rising at an increasing rate, it implies that each additional unit of labor is contributing more to the total output than the previous unit, which means the marginal product of labor is rising.		 A
wenxinyiyan A

Explanation:
The total product of labor (TPL) represents the total output produced by varying amounts of labor, keeping other inputs constant. The marginal product of labor (MPL) is the additional output produced by one additional unit of labor.

When the total product of labor is rising at an increasing rate, it means that as more labor is added, the output is increasing by larger amounts. This situation occurs when the marginal product of labor is increasing. In other words, each additional unit of labor is contributing more to output than the previous unit.

Option B (marginal product of labor is at its minimum) would be incorrect because if MPL were at its minimum, TPL would be rising at a decreasing rate or even remaining constant.

Option C (marginal product of labor is at its maximum) would also be incorrect. While MPL is rising, it does not necessarily mean it is at its maximum. MPL could continue to rise or it could start to fall after reaching a certain point.

Option D (marginal cost is rising) is not directly related to the question. Marginal cost refers to the additional cost incurred by producing one additional unit of output. The question is specifically asking about the relationship between TPL and MPL, not marginal cost. Therefore, D is not the correct answer.		 A
zhipu A. marginal product of labor is rising.

When the total product of labor is rising at an increasing rate, it means that each additional unit of labor is contributing more to the total output than the previous unit. This indicates that the marginal product of labor (the additional output produced by one more unit of labor) is increasing. Therefore, the correct answer is A.		 A
gpto1 A A