Testimony occurs when an ordinary person other than the speaker bears witness to his or her own experiences and beliefs.

Using the factors of production to make one product always means that o .) a company may experience a shortage of materials o . )a nation can make more money o. ) it is possible to make too many of that product o. ) fewer resources are left to make something else

Restricting immigrants from entering a country may be based on what belief?  

What is the rule relating the ratio of marginal utility to prices of two goods at the optimal choice? explain why, if this rule does not hold, the choice cannot be utility-maximizing.