If the multiplier is 10, then the marginal propensity to consume (MPC) is Naim 12:07 Economics Chapter 12 If the multiplier is 10, then the marginal propensity to consume (MPC) is A) 0.9. B) 0.1. C) 1. D) 9. Answer: A Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+