It’s Economics 101!
Chuck Ponzi December 15th, 2005
A great little piece came out in the San Diego Union Tribune today with a few notable quotes that are a bit amusing. Here are a few of notable quotes:
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Despite rising interest rates, a growing for-sale inventory and a slowing sales pace, the county’s shortage of housing will prevent prices from dropping steeply, speakers asserted.
“It’s Economics 101,” said Leslie Appleton-Young, chief economist for the California Association of Realtors. “It’s demand and supply.”
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and …
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The fundamentals of the housing economy remain sound, said Louis A. Galuppo, director of USD’s Burnham-Moores Center for Real Estate. “We may see a decline in sales but not prices.”
Despite “air leaking out of the tire,” there are no major economic triggers, such as massive job losses, to cause the housing market to crash, said Joe Anfuso, chief financial officer of Shea Homes San Diego.
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I agree, it most definitely is Economics 101.
Anyone who has ever taken an economics course should be familiar with this picture:

It’s the demand curve and the supply curve. Basics: People buy more of something when it is cheaper (downward sloping demand curve) and suppliers supply more of something when it is more expensive (upward sloping supply curve). The market price is where the demand curve intersects with the supply curve. We won’t talk about elasticity of pricing or supply lags or anything, just the basics.
We all know that long transaction settlement times will make it an illiquid market and imperfect information make the market inefficient, so for the moment we will assume that we are currently at the perfect market price.
So, if quantity goes down, what could that mean? Well, back to Econ 101, it must be 1 of 2 things:
1. Shift in the Supply Curve
2. Shift in the Demand Curve
Without an exogenous shock, economists normally dismiss #1 and go right to #2. However, for the sake of fairness, we’ll consider it.
Shifts in the supply curve to supply a lower quantity would generally mean a higher price. Suppliers would do this if prices of raw materials increased, restrictions were placed on output, or some other event would cause them to be unable to provide more quantity. However, all other news articles recently have pointed to a consumer-led slowdown, and no immediate event has happened to suppliers to slow production in recent months. (Please, any reader correct me if I am wrong)
So… what does a shift in the demand curve mean? Well, that would mean that consumers are unable or unwilling to pay the prices, and have scaled back on purchases. (Once again, intentionally simplified) This would result in a left-shift of the demand curve.
Now, illiquid markets with imperfect information tend to overreact to information and overshoot the fair price of the goods.
So, how is that supported by Mr. Galuppo’s assertion that we can decrease transactions without decreasing prices? Well, anyway, it’s not Econ 101.
Which leads us to his second assertion; there are no major economic triggers such as massive job losses… Well if that isn’t just a jinx on the whole thing.
Besides, with the economy so dependent on Real Estate transactions and values, well, shoot, we’ll dang near just squeak by without all of that additional transaction volume, right?
