More and more, today, we are reading the current economic crisis proves that Market Economics is dead. Looking at the behaviors exhibited in the last twenty years, the detractors tell us, proves that people do not follow the rational economic choices that are espoused by classical economists. They claim that the new wave of economics is behaviorist and behaviorism destroys all classical analysis. In other words: “Adam Smith is no longer relevant.”
Although there are strong arguments for this approach, I believe that the classical Supply/Demand Model still works. It only needs a minor modification to remain relevant and reliable predictor of human behavior. Most of us, who only had a cursory course or two in economics, remember that the Supply/Demand approach looks at prices and quantities. There is an assumption that all of our decisions are based upon changes in prices. What we forget is that the price quantity relationships are stipulated as operating ceteris paribus. This means that everything else remains constant. Economists are not stupid. They know that people spend based upon their tastes and preferences, their income, their wealth, their expectations and many other factors. The model, however, holds these items constant and says that people will act rationally in a supply demand situation.
Where our model appears to fall apart is that people seem to be acting irrationally. If this is the case, then maybe economics is irrelevant. Looking at the same behaviors, I have come to a different conclusion. I concentrate on peoples’ expectations. I believe that people act with economic rationality based upon their expectations. However, there is nothing in the model that says peoples’ expectations have to be rational. So, if you believe that the basics of the economy have changed and there will never be a down real estate market again, you will be willing to take on an in ordinate amount of debt because the rising asset value will give you a growing net worth. Expecting a market with no down side risk is irrational. But, if you are faced with experience that has never seen a down side in real estate you will act as if the lack of a downside is reality. Your actions are rational within the context of your belief and follow standard economic models regarding supply and demand.
This approach also helps us understand why people buy high and sell low in the stock market: If the market has been growing for a long time but you are afraid of market cycles there is a high probability that you stayed out of the market during its early growth phase. As the market keeps growing you begin to experience cognitive dissonance. That is, your behavior is at odds with everything you now appear to know about the market. You finally give in and go into a buy mode. However, you waited too long and the market drops shortly after your purchases. You are now in the “…I knew I never should have done this…” mode. Your real expectations have been reinforced and you decide to “…cut your losses…” Your observed behavior is irrational. But, based upon your expectations you behaved rationally.
We do need to spend more time addressing how expectations are created. We also need to do more in the realm of education that allows expectations to be created based on rationality. The problem we have had is that the experts, who should have known better, were making so much money that they were reluctant to burst the balloon and eventually began to have irrational expectations of their own. They began to believe their own hype.
