"The opportunity cost of doing something is the value of everything to what he has to resign to do " (1)
The author illustrates the choice between going to a concert with a ticket given away or go to a concert that also concerned with how to calculate ticket purchased if it's worth going to first? (2)
is an elementary concept of economics, and key, and yet is poorly understood. Helps explain, in other cases, because people are more impatient and unkind to answer a question on the street in a city economically active, compared with the response that often results in a small rural village.
activities are left to the answer carefully explains the difference. Where there are many activities to do, the opportunity cost is higher. Where there is little to do, the opportunity cost is lower and therefore people take all the time in the world to give an explanation to the satisfaction of clueless. Or in other words, when there is nothing urgent to do, everything can be done more quietly !
(1) Robert Frank, "The Economist Naturalist, Peninsula. Barcelona, \u200b\u200b2008
(2) If the 2 nd concert costs $ 40 and you're willing to pay up to 50 $ (or whatever it is the same: if it costs more than 50 you would not anyway). And if the first costs, should pay the entrance fee, $ 10 then worth going to the first (assuming of course that an economic value at $ 10, or whether he was willing to pay up to $ 10 by going to the concert). The key is that 50-10 = 40 is the value of foregone and is equal to the price of the latter.
in mathematics to a simple reasoning may seem abstruse to the uninitiated.