
In my post on
Bicycles and Carrots I introduced a lot of terms that are used by economists. Let me list them as I introduced them:
Equilibrium.
Market.
Free market.
Buyers.
Sellers.
Barriers.
Widget.
Perfect substitutability.
Static Analysis.
Dynamic Analysis.
Moment.
Utility.
Value.
Fungible.
Exogenous variables.
Endogenous variables.
Ceteris paribus
Complexity.
Tastes and preferences.
Choice.
Policy.
Fairness.
When we left, you had carrots and I had apples. When we met, I wanted a carrot but you were unwilling to give up a carrot, even if I had given you one or both of my apples.
At that moment, the market for apples and carrots were in disequilibrium, since more carrots were demanded than the market was willing to provide. The question that is begged is; is this lack of equilibrium in the market a good thing or a bad thing?
Did you know that there are two schools of thought? One school is denominated by objective study. The other school is denominated by normative study.
Let’s take a look at our market equilibrium condition, and at the moment of disequilibrium we magically replace my apples with widgets and your carrots with widgets. You want to trade, and I don’t. (Take a look at the last post to understand the concept of “widget”.) If we trade, you still have two widgets and I still have two widgets. Is the market in equilibrium if I refuse to trade? if I do trade?
Let’s take a look at the market for widgets.

The widget market is determined by cost and price. (And since we’re using the perfect widget, the cost of a widget is equal to the price of a widget!) What we find is that the market equilibrium cost and price of a widget is defined by the intersecting lines of the Widget Supply and Demand curves. (Yes, they’re straight lines, but remember, this is a static analysis…in a dynamic analysis the lines would be curved. There’s a more elaborate mathematical explanation available here, just live with the fact that these straight lines are called “curves”.)
What is the ideal price of a widget? One widget. What is the ideal cost of a widget? One widget. And when the cost of supplying a widget equals the price paid for a widget, it is at that moment that the market has established its equilibrium. At One Widget, one will be provided, one will be purchased. Equilibrium.
But what is the advantage to the holder of either widgets or widgets? Markets like this don’t exist, because there’s no advantage to either seller or buyer to participate in the market. No one is better off (although no one is worse off) and I can’t think of a reason to set up a market for trading goods that provide no advantage to either the seller or the buyer. Can you?
So, if we are going to define what a market is, we need to introduce the idea that somehow, as a result of a market transaction, that either the seller or the buyer must see some advantage to himself as the direct result of a market transaction.
We’ve looked at several terms that help us express ways of describing this “advantage”. Utility, value, tastes and preferences. Because we—you and I—are perfectly rational actors, we can see that trading widgets offers neither you nor I any comparative advantage as a result of a trade. So while the market is in equilibrium, no trading takes place because there’s no comparative advantage to either seller or buyer.
So, is equilibrium in the market a good thing?
You hear a lot of talk about “sustainability”. Terms like sustainability and equilibrium are used a lot by politicians and teachers. But what is the value of equilibrium itself? Equilibrium as equilibrium has no value. There is no market because both seller and buyer see that the market cannot benefit them. So, let’s look at the way we create a market where either the buyer or the seller is better off. That is, they have received an advantage as a result of participating in the marketplace.
One of the popular criticisms of markets, and market-driven economies (known as capitalists systems) is the discovery of greed. From Merriam-Webster we get this: “Acquisitive desire beyond reason; greediness; as, a greed of gain.” There is some conjecture that the first example of Man’s greediness was exhibited by Eve. Others look at Cain. If greed itself was to be viewed as a necessary component of capitalism, we must agree that Man, living in the Garden of Eden, was compelled by market forces to eat the apple. I would assert that Adam and Eve, whilst among the environs of Delight, were not subject to the rigorous demands of capitalist exploitation. I would also assert that Eve’s actions showed an “acquisitive desire beyond reason.”
My point here is simply to show that greed as greed isn’t dependent upon some such or another system of economic organization. Greed exists, or has existed, during the entire history of mankind. Condemning capitalism due to greed is only intellectually honest if you condemn socialism due to greed. (For a complete review of the excesses of socialist greed, try looking into the fall of the Soviet Union.)
So I propose that we look at a brief deconstruction of greed. What are the components of greed? Well, as we see above, it is the acquisitive desire “beyond reason”. “Beyond reason” I’m going to leave alone for a moment. Let’s look instead at the “acquisitive desire”.
Utility, value, tastes and preferences.
Let’s take a look at utility.

If I have no carrots, the utility of carrots that I receive from having carrots is zero. But I have an acquisitive desire. I want carrots. I want the utility of carrots. So, I set about acquiring them. But, take a look at the utility curve above.
As the quantity of carrots I have increases, the utility I derive from having these carrots increases. And I get carrots, and carrots and carrots until the utility I can get from having carrots is maximized at M. Then something amazing happens. The more carrots I get, the less utility I received from having carrots. How can this happen?
I chuckle when I hear of the Muslim vision of martyrdom and the 72 virgins. At what point is one virgin enough? 36 virgins? 72? As an older man, the idea of being stuck with a bunch of virgins simply isn’t attractive to me. For me, a woman of wit and experience. (But I’m not a Muslim, so what do I know?)
So, too for us is a new conundrum. At what point do we find ourselves with too many carrots?
What determines “too many carrots” for me may not be what determines “too many carrots” for you. That is, are you able to determine what is, or isn’t, an acquisitive desire “beyond reason” for me? If I have ten carrots and you have zero carrots, is this proof of my greed? Given the utility chart above, if the utility I receive from having carrots hasn’t yet reached point “M”, I think I can argue that I haven’t, as yet, reached a level of carrot ownership that is “beyond reason”.
Another case of the relative utility of carrots may end up with this result: I have ten carrots and want no more; you have ten carrots and you want more.
Is this possible?
It’s at this point where one of the first characteristics of what is defined as “free market Capitalism” is best understood. Given the utility of carrots, given the value you have for carrots, the tastes you have for carrots and your preference for carrots, what comprises the best determinant of how many carrots you own?
Republicans believe that you are the best decision-maker when it comes to determining how many carrots you have. Democrats believe that since there are imbalances in carrot-ownership, the government should step in and make sure there is the same number of carrots for everyone.
For markets to work, buyers and sellers need to come to market and freely exchange goods and services. The number of carrots sold to the number of apples offered determines the price of carrots to apples. And we’ve already noted here that the mere existence of disequilibrium in the market is not, in itself, a bad thing.
At the beginning of this essay I pointed out that there are two different types of economic analysis; objective analysis and normative analysis. Within the academy, this difference is usually referred to as the divide between the monetarists and the Keynesians. Monetarists, in the main, believe that the role of government is to insure that an adequate level of liquidity exists to finance the transactions demands of the economy. Keynesians believe that government needs to define an outcome for economic activity.
As for the other forms of economic analysis, like the Ron Paul guys and the Bob Barr guys, anything that pins itself to barter—or gold—isn’t very interesting.
What is interesting to me is the desire to effect macroeconomic changes with microeconomic policies. Let’s be clear: so far, the market effects we’ve been examining have been microeconomic effects. It has been you and I, with our carrots, apples and widgets. The difference between a micro- and macro-economic analysis has to do with aggregation. We’ve looked, so far, at you as a producer of carrots/widgets, and me as a producer of apples/widgets. So, perhaps, we should look at what happens to microeconomic choices when faced with macroeconomic realities. That is, what happens to my apples when I’m not the only producer of apples, but one of a thousand, ten thousand, or, one-hundred thousand?
POSTSCRIPT: I'd like to welcome a brand new blogger on the intertubes today. You can read his first post, "
What's Greed Got To Do With It?" over at Dr. B's Second Rate Economics Blog. Congratulations, Perfesser! (His website has been added to my link's on the right-hand side of this page. He doesn't promise to blog often, but you don't need to find many nuggets of gold before you're a rich man.)