If your tongue feels heavy and looks enlarged, then you could be suffering from a condition called scalloped tongue. Know what this condition may indicate, and what is its treatment, from the following. Advertisement. If the tongue appears to be pale or sore and sometimes inflamed, then it may be an indication of an underlying health condition.
economics. 1  the benefit that could have been gained from an alternative use of the same resource. 2  An opportunity cost is the cost of not being able to do other things with time and resources because of doing the chosen activity.
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.