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Consider a production function q = f (x_1, x_2) where the firm produces q amount of output using x_1 amount of factor 1 and x_2 amount of factor 2.…

CUET UG 2025 — Economics Micro

2025mcqmedium

Consider a production function q=f(x1,x2)q = f (x_1, x_2)q=f(x1​,x2​) where the firm produces q amount of output using x1x_1x1​ amount of factor 1 and x2x_2x2​ amount of factor 2. Now suppose the firm decides to increase the employment level of both the factors t (t > 1) times.

Identify the correct statement from the following.

Official previous-year question

Held on 15 May 2025 · Verified 13 Jul 2026.

Options

  1. A

    f(tx1,tx2)=tf(x1,x2)f(tx_1, tx_2) = tf(x_1, x_2)f(tx1​,tx2​)=tf(x1​,x2​) implies constant returns to scale.

  2. B

    f(tx1,tx2)>tf(x1,x2)f(tx_1, tx_2) > tf(x_1, x_2)f(tx1​,tx2​)>tf(x1​,x2​) implies decreasing returns to scale.

  3. C

    f(tx1,tx2)<tf(x1,x2)f(tx_1, tx_2) < tf(x_1, x_2)f(tx1​,tx2​)<tf(x1​,x2​) implies increasing returns to scale.

  4. D

    f(tx1,tx2)=f(x1,x2)f(tx_1, tx_2) = f(x_1, x_2)f(tx1​,tx2​)=f(x1​,x2​) implies constant returns to scale.

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