When buyers in a competitive market take the selling price as given, they are said to be

The condition that requires MRTS for each input pair to equal the ratio of their marginal costs is known as ________ efficiency, and the condition that requires MRS for each output pair to equal their output price ratio is known as ________

efficiency. A) economic, market B) micro, macro C) cost, revenue D) technical, output

Which of the following owns the largest proportion of the national debt?

a. Foreigners. b. Federal, state, and local governments and the Federal Reserve. c. Private individuals, banks, and corporations. d. None of these.