As indifference curve shows equal level of satisfaction at all points, An isoquant shows equal level of_________

Step 1: Analyze the question The question is an analogy. An indifference curve joins all combinations of two goods that give a consumer the same level of satisfaction. It asks what an isoquant shows the equal level of.

Step 2: Explain the concept

• Indifference curve (consumer theory): different combinations of two goods, all giving the same satisfaction (utility).
• Isoquant (production theory): different combinations of two inputs (for example labour and capital), all producing the same quantity of output. "Iso" means equal and "quant" refers to quantity. It is also called an equal-product curve or iso-product curve.

Step 3: Solution Matching the two curves:

| Curve | Variables on the axes | Held constant | |---|---|---| | Indifference curve | Two commodities | Satisfaction | | Isoquant | Two inputs (factors) | Output |

Along an isoquant, the inputs (factors) change, but the output stays the same. So the thing that is equal at all points on an isoquant is output.

Options A (Input) and D (Factors) are what vary along the curve, not what stays equal. Option B (Commodities) belongs to indifference curves.

Step 4: Answer The correct option is C. Output.

Step 5: Exam tip Remember the pairing: Indifference curve → Satisfaction; Isoquant → Output. Whenever you see "iso-" in production, think "same output from different input mixes." Likewise, an isocost line shows equal total cost.