Temporal arteritis, also known as giant cell arteritis, is a condition that involves blood vessel inflammation and damage. According to the University of Maryland Medical Center, this condition may affect the medium or large arteries that supply blood to your head, neck, upper body and arms.
Legal Definition of opportunity cost. : the cost of making an investment that is the difference between the return on one investment and the return on an alternative.
Ricardo's justification is based on the concept of opportunity cost. Opportunity cost is the cost of the next best alternative, or what you are giving up to do what you are currently doing. Ricardo explains why opportunity cost is an incentive for rational people and nations to specialize and enter into trade.