Most of the fallacies in economics come from ignoring this essential lesson, but the opposite are can occur. Classical economists only focused on long-term consequences and not the immediate damage incurred by certain groups. This error, however, is not often made. Many people take short run consequences into account to the extent that they neglect any long term consequences of policy. The difference between good and bad economics is that bad economics focuses on short term benefits and ignores long term consequences. The reason that this has continued to prevail is because bad economist are better at defending their errors than good economists are at convincing the public of the truth.
To analyze a real world issue, we must