Lesson for the crisis: the cost of chance to approve the thousandth loan subprime very probably will be the bankruptcy of its bank. Rational people think about the edge: the decisions that we take in the life are rare in black color and white, in general they have ash tones. When it is hour of supper, the decision is not to jejuar or if to obstruct of food, but to catch plus a soup spoon. When the tests if approach, the decision are not to play them high it or to study 24 hours per day, but between spending plus one hour I resell the substance or to attend television. The economists use the expression alterations delinquents to describe small incremental adjustments to a plan of incremental action. ' ' Margem' ' also to mean ' ' beirada' ' , in way that alterations delinquents are adjustments in eaves of what you are making. The principle delinquent allows in them to take better decisions; we can use it to determine if the increase of a unit in an 0 variable will leave in them or not in better conditions. For example: a barber could decide if 1 hour must keep its barber’s shop opened for mai.
You could decide if she must study 1 hour for the test of economy. The principle delinquent if bases on the comparison of benefits and costs one delinquents determined activity. The benefit delinquent of some activity it is the resultant good consideration of a small increase in the activity, as for example, the generated additional prescription when a barber’s shop is open for more 1 hour. In similar way, the cost delinquent is the resultant additional cost of a small increase in the activity, as, for example, the incidental costs incurred when a store opened for 1 hour remains itself more. In accordance with the principle delinquent, you must increase the activity level while the benefit delinquent will be greater that the cost delinquent.
