Macroeconomics: explain why total income and total output have to equal at all circumstances.

Macroeconomics

Listed below is a question concerning macroeconomics. Task is to answer the question completely.      DO NOT need literature cited page. DO NOT DIRECTLY QUOTE ANY SOURCE.                                  Paper should include an introduction, body, and conclusion. Introduce the topic/concepts, answer the question in the body, and then draw a conclusion. Answer the question, get in and get out. Grammatical mistakes will cost you 10 points per mistake and the omission of any pertinent economic information or inclusion of incorrect economic information will cost you 10 points each. Paper should also read smoothly. Rough or choppy papers will lose a maximum of 10 points. Paper should be no more than 2 pages double spaced (1 page is fine as long as you answer the question) in 12 point Times New Roman font.

Explain why total income and total output have to equal at all circumstances.