Questions: Multiple Choice Question If the quantity supplied equals the quantity demanded: equilibrium will stay the same if all else is equal. the market quantity cannot change. the market price cannot change. equilibrium will stay the same if there are only market forces acting on it.

The answer is the first one: equilibrium will stay the same if all else is equal.

Explanation for each option:

1. Equilibrium will stay the same if all else is equal.

   • This statement is correct. When the quantity supplied equals the quantity demanded, the market is in equilibrium. If all other factors remain constant (ceteris paribus), the equilibrium will remain unchanged.

2. The market quantity cannot change.

   • This statement is incorrect. While the market is in equilibrium at a given point, changes in external factors (such as shifts in supply or demand) can lead to changes in the market quantity.

3. The market price cannot change.

   • This statement is incorrect. Similar to the market quantity, the market price can change if there are shifts in supply or demand, even if the market is initially in equilibrium.

4. Equilibrium will stay the same if there are only market forces acting on it.

   • This statement is somewhat misleading. Market forces include supply and demand, which can shift due to various factors, potentially altering the equilibrium. The phrase "only market forces" is vague and does not guarantee that equilibrium will remain unchanged.

In summary, the correct answer is that equilibrium will stay the same if all else is equal, as this reflects the condition of ceteris paribus, where no external changes affect the market.