N. g. mankiw argues that economists almost never disagree about positive theory, and that virtually all disagreements between economists are due to disagreement regarding normative issues. a. trueb. false

answer; purpose nondisclosure;

i would say iii (3) because in order to compare a price you have to use as a reference other near stores because it's its

hope i explained myself

the answer would be voluntary exchange -

"the act of buyers and sellers freely and willingly engaging in market transactions. moreover, transactions are made in such a way that both the buyer and the seller are better off after the exchange than before it occurred."

hope this : )

-shy