Sunday, July 30, 2006
Price Elasticity of Demand for Gasoline
Knowledge Problem: The Fundamentals Are Basically the Same: A Reprise of Last August's High Gas Price Posts
Pointed by Jonathan Adler on the Volokh Conspiracy.
Professor Kiesling discusses the fundamentals of gasoline prices and concludes that things aren't particularly anti-competitive, but gasoline just isn't that expensive as household expenses go.
I regularly get spam about how we consumers are going to bring Big Oil to its knees by refusing to buy gasoline on the second Tuesdays of months that have an 'R' in the name. That doesn't work: not enough people sign on, and even those that do just buy the gas on Monday or Wednesday. Just like free market versus command economy, the best plans ask people to act in their immediate self interest. Consumer demand has been too inelastic based on price, possibly due to laziness, or not thinking, or someone else paying. All we have to do to make the retailers (and thus influence it upstream) lower their prices as much and as quickly as possible, is to be much more elastic. And we don't even have to change our driving habits or give up our big cars. All we have to do is always buy from the cheapest gas station!
As you drive around, note the prices of all the stations you pass in your normal course of business. Share the information. Make use of services like the gas price survey on autos.msn.com or www.massachusettsgasprices.com. And do your best to always buy from the station with the lowest price.
I've seen stations with a 5 cents per gallon difference located across the street from each other, and folks are still buying at the more expensive station. (In one case, the Exxon station is cheaper than the small-chain, no-brand station!) Even if you're not going in that direction, then buy it there the next time you pass it. (And if you're so low that you're about to run out, that's even more savings from making those two left turns.)
We can't force them (the retailers) to sell at a loss, but we can force their profit-maximizing price lower.
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Thursday, July 27, 2006
What else is wrong with the Big Dig?
As someone once explained (in the context of why you should strive to release completely bug-free software to the customers), if you're sitting in a restaurant and you see a cockroach walk across the table, you don't say "Oh, there is THE cockroach", you say "This place is infested."
So now that we know that every epoxied bolt into the ceiling has been or will be re-inspected, are we satisfied that now we know what was THE problem with the CA/T project?
I don't know how to build roads, and certainly not how to build the Big Dig, but I'd have hoped that the folks doing it did know, and did think about all the constraints, like making sure that what is supposed to be up stays up, but also that what is supposed to be down stays down and flat and dry, and ventilated, and signed, and cable-stayed, and whatever else subtle is required of a road. Obviously that wasn't the case.
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Wednesday, July 26, 2006
Brokeback Hartz Mountain
Here's one for the Googlewhackers -- even though it's three words, I'm surprised nobody used this phrase before.
It's what happened when we bought two young male guinea pigs from separate sources, and put them in the cage together, and one made the other his bitch. But now they do spend a lot of time cuddling. We hope to have them neutered soon, so that they may socialize with the distaff side of the herd.
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