| 模型 | 模型答案 | 正确答案 |
|---|---|---|
| 金声玉亮2.0 | A. A rival firm matches price decreases of rivals, but fails to match any price increases of rivals. In an oligopoly, firms are interdependent and closely monitor each other's actions. If one firm lowers its price, others are likely to follow suit to avoid losing market share. However, if one firm raises its price, others may not follow, as they may see an opportunity to gain market share by keeping their prices lower. This behavior is known as "price stickiness" and is a characteristic of oligopolistic markets. |
A |
| deepseekr1 | The characteristic condition of an oligopoly involves strategic interdependence among firms, where rivals closely monitor and react to each other's pricing decisions. The **kinked demand curve model** is key here: if a firm **lowers its price**, rivals will **match the decrease** to avoid losing market share. However, if a firm **raises its price**, rivals **do not follow**, as maintaining lower prices allows them to attract customers from the price-increasing firm. This results in price rigidity. - **Option A** correctly captures this dynamic: rivals match price decreases but not increases. - **Option B** (matching increases but not decreases) contradicts the kinked demand logic. - **Option C** (no reaction) aligns more with monopolistic competition, not oligopoly. - **Option D** (independence) is inconsistent with oligopolistic interdependence. **Answer: A** |
A |
| gpto1 | A | A |
| GPT-4o | A. A rival firm matches price decreases of rivals, but fails to match any price increases of rivals. | A |
| llama3.1-70B-Instruct | A |
A |
| llama3.1-405B-Instruct | A. A rival firm matches price decreases of rivals, but fails to match any price increases of rivals. In an oligopoly, firms are interdependent and closely monitor each other's actions. If one firm lowers its price, others are likely to follow suit to avoid losing market share. However, if one firm raises its price, others may not follow, as they may see an opportunity to gain market share by keeping their prices lower. This behavior is known as "price stickiness" and is a characteristic of oligopolistic markets. |
A |
| DeepSeek-Coder-V2 | A | A |
| Qwen2-72B-Instruct | B. A rival firm matches price increases of rivals, but fails to match any price decrease of rivals. | A |
| baichuan4 | B | A |
| doubao | A In an oligopoly, firms are interdependent, and they often engage in strategic behavior. Option A describes a situation where a firm is likely to follow a rival's price decrease to remain competitive but may not follow a price increase, which is characteristic of oligopolistic behavior. Options B and C are less typical, and in option D, firms acting independently is more characteristic of perfect competition rather than oligopoly. |
A |
| minimax | A. A rival firm matches price decreases of rivals, but fails to match any price increases of rivals. | A |
| kimi | A | A |
| wenxinyiyan | A Explanation: Oligopoly is a market structure where there are a few large firms that dominate the market. Due to the interdependence among these few firms, price and output decisions of one firm significantly affect the other firms in the market. Option A describes a situation where a firm matches any price decrease by its rivals (to avoid losing market share) but does not necessarily match a price increase (to benefit from higher profits at the current price level). This behavior is characteristic of oligopolistic markets, where firms are highly sensitive to each other's pricing strategies. Option B is not characteristic of oligopoly because firms typically do not ignore price decreases by competitors, as this could lead to a loss of market share. Option C does not describe oligopoly either, as it suggests complete independence in pricing decisions, which is more characteristic of perfect competition or monopolistic competition. Option D is incorrect because it suggests independence among firms, whereas oligopoly is characterized by interdependence. In oligopolistic markets, firms must consider the potential reactions of their competitors when making price and output decisions. |
A |
| zhipu | A. A rival firm matches price decreases of rivals, but fails to match any price increases of rivals. This condition is characteristic of an oligopoly, where firms are highly interdependent and often engage in price leadership. In such markets, firms are typically quick to match price decreases to maintain competitiveness, but may not match price increases to avoid triggering a price war. This behavior is known as "sticky prices." |
A |
| gpto1 | A | A |