Upper-middle-income countries that achieve the highest rates of economic growth are sometimes referred to collectively as: International Marketing Chapter 2 Upper-middle-income countries that achieve the highest rates of economic growth are sometimes referred to collectively as: A) LDCs. B) BEMs. C) BRICs. D) NIEs. E) BOPs. Answer: D) NIEs. Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+