a priori


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a priori

adj. known to be true, independently of the subject under debate. Economists frequently develop their theoretical models by reasoning, deductively, from certain prior assumptions to general predictions.

For example, operating on the assumption that consumers behave rationally in seeking to maximize their utility from a limited income, economists’ reasoning leads them to the prediction that consumers will tend to buy more of those products whose relative price has fallen. See ECONOMIC MAN, CONSUMER EQUILIBRIUM

References in periodicals archive ?
The First still attempts an a priori demonstration that our cognitive methods satisfy some (weak) criterion of adequacy.
Infallibilism about a priori justification is the thesis that for an agent A to be a priori justified in believing p, that which justifies A's belief that p must guarantee the truth of p.