Let the production function be q=AL^a*K^b. The function exhibits decreasing returns to scale if Naim 21:26 Microeconomic Theory Chapter 6 Let the production function be q=AL^a*K^b. The function exhibits decreasing returns to scale if A) a + b = 1. B) a+ b > 1. C) a + b < 1. D) Cannot be determined with the information given. Answer: a + b < 1. Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+