| 模型 | 模型答案 | 正确答案 |
|---|---|---|
| 金声玉亮2.0 | D. Supply shifts to the left; demand shifts to the right. |
D |
| deepseekr1 | The equilibrium price of corn is determined by the interaction of supply and demand. When supply decreases (shifts left) and demand increases (shifts right), both changes independently drive the price upward. A leftward supply shift reduces availability, increasing price, while a rightward demand shift raises willingness to pay, further increasing price. Regardless of the magnitude of these shifts, their combined effect **definitely increases the equilibrium price**. **Answer: D** |
D |
| gpto1 | D | D |
| GPT-4o | D. Supply shifts to the left; demand shifts to the right. | D |
| llama3.1-70B-Instruct | D |
D |
| llama3.1-405B-Instruct | D |
D |
| DeepSeek-Coder-V2 | D | D |
| Qwen2-72B-Instruct | D. Supply shifts to the left; demand shifts to the right. | D |
| baichuan4 | D | D |
| doubao | D. Supply shifts to the left; demand shifts to the right. When supply shifts to the left and demand shifts to the right, it will lead to an increase in the equilibrium price. | D |
| minimax | A. Both supply and demand shift rightward. | D |
| kimi | D. Supply shifts to the left; demand shifts to the right. In a competitive market, the equilibrium price is determined by the intersection of the supply and demand curves. If the supply curve shifts to the left (indicating a decrease in supply) and the demand curve shifts to the right (indicating an increase in demand), the new equilibrium will occur at a higher price and quantity than the original equilibrium. |
D |
| wenxinyiyan | D Explanation: In a competitive market, the equilibrium price of a good is determined by the intersection of the supply and demand curves. Changes in either supply or demand can affect the equilibrium price. A. If both supply and demand shift rightward (increase), the effect on the equilibrium price is ambiguous. It depends on the relative magnitudes of the shifts. If supply increases more than demand, the price will fall. If demand increases more than supply, the price will rise. If they increase by the same amount, the price will remain unchanged, but the equilibrium quantity will increase. B. If both supply and demand shift leftward (decrease), the effect on the equilibrium price is also ambiguous. Similarly, it depends on the relative magnitudes of the shifts. C. If supply shifts to the right (increases) and demand shifts to the left (decreases), the equilibrium price will definitely decrease. This is because there is more of the good available at each price (supply increase) and less of the good being demanded at each price (demand decrease). D. If supply shifts to the left (decreases) and demand shifts to the right (increases), the equilibrium price will definitely increase. This is because there is less of the good available at each price (supply decrease) and more of the good being demanded at each price (demand increase). This combination of shifts unambiguously leads to an increase in the equilibrium price. |
D |
| zhipu | D Explanation: When supply shifts to the left, it means there is a decrease in the quantity of corn available. When demand shifts to the right, it means there is an increase in the quantity of corn demanded. This combination of decreased supply and increased demand will definitely lead to an increase in the equilibrium price of corn. The other options either do not definitively increase the price or could result in an indeterminate effect on the price. |
D |
| gpto1 | D | D |