Canard DuJour said:
Nah, I said the utiliy of safe bridges, not the utility of some bridge. The safe bit is specifically civil engineers' contribution and an alternative bridge to the one I'm on makes me value its safety no less.
The safety of the bridge is no more the engineer's sole work than the bridge itself is. Lots of people have to do their jobs in order for the bridge to be safe; besides which, the engineer spends her work time figuring out a lot of things besides how to make the bridge safe.
Now let's try that again without the equivocation..
"The safety of the bridge is no more the engineer's sole work specific contribution than the bridge itself is. Lots of people have to do their jobs in order for the bridge to be safe; besides which, the engineer spends her work time figuring out a lot of things besides how to make the bridge safe."
..thus we see the first bit is wrong and the second irrelevant. The point was that wages for a specific contribution fluctuate independently of its consumer utility. Not that consumer utility can't change and bugger all to do with "sole work" in either sense. You have again constructed strawmen by deliberate misinterpretation of loose synonyms. This silly and tedious form of argumentation does you no favours.
I've been engaging with you because you replied to one of my posts in a way that made it sound like you wanted a substantive and mutually beneficial discussion of economic theory, in which you would either teach me something or learn something from me. Apparently I was wrong. Apparently you're just here to smear the opposition. You've decided I'm the enemy, and you don't give a rat's ass whether the things you say about enemies are true or not. You accuse me of deliberately misinterpreting what you wrote. I did no such thing. You did not have a reason to believe I did any such thing. You made that accusation up out of whole cloth. That's libel -- a false damaging accusation made with malice and reckless disregard for the truth. You are behaving unethically because you don't like me. Not liking someone is not an adequate reason to behave unethically. Stop doing it.
I have no idea what the distinction you're making between "sole work" and "specific contribution" is. Since you say "sole work" isn't what you meant by "specific contribution", I have no idea what you use the words "specific contribution" to mean. If that led me to make a counterargument that fails to refute you because it missed the point of your argument, that was an inadvertent mistake on my part -- a mistake I blame on your lack of clarity, and a mistake you should feel free to blame on my stupidity and my inability to understand plain English, if you imagine what you wrote was plain English. If you can live with that and you decide you want to actually discuss economic theory, we can proceed; but if you tell any more untruths about me I'll take it as proving that trying to teach you or learn from you will be a waste of my time.
thus we see the first bit is wrong and the second irrelevant.
I can't see the first bit is wrong since you haven't explained what "specific contribution" means. The second bit is relevant because we were talking about how valuable the civil engineer's work is. Surely the additional non-safety-related work she does counts toward that.
You think you can quantify how much better you like a safe bridge than an unsafe one in monetary terms, and how [etc]
Besides, you seem to be assuming the alternative bridge is unsafe [etc]

No and no.
It seems I've misunderstood you again. I wrote "If you propose to define the value of her engineering work based on measuring the utility of the bridge", and you corrected me "Nah, I said the utiliy of safe bridges, not the utility of some bridge." That appears to mean you propose to define the value of her engineering work based on measuring the utility of safe bridges. Do I have that right? So how can the utility of safe bridges tell you anything about how many dollars her engineering work is worth if you don't know how many dollars safe bridges are worth?
As for the second "no", you say "no" to my conclusion after snipping and not addressing the argument for it. You said "an alternative bridge to the one I'm on makes me value its safety no less.", so I asked, if bridge B is safe and you use bridge B half the time, why wouldn't that make you value the safety of bridge A less than if you always used it? If you aren't assuming bridge B is unsafe then why don't you consequently value bridge A's safety less? It would be rational for you to consequently value bridge A's safety less.
In fact it's only "easier for people to make other arrangements" if there are more civil engineering projects. That tends to raise civil engineers' wages while - by your logic - reducing the consumer utility of their work.
There's no contradiction between consumers valuing the product less even while the input is getting valued more, because the one is not the cause of the other. Rather, a previous change causes both.
Yep, hence changing market rates for labour have no necessary relation to the consumer utility of finished product.
True, they do not. Hey, we agree on something! But it sounds like you think it's possible for the pay rate for labor to have a fixed relation to the consumer utility of the finished product. That seems impossible to me, whether you use a market to determine wages or not, for reasons already explained.
Welcome to equilibrium. ... tends to raise civil engineers' wages part way back to the original level.
It might or might not. Employers don't necessarily pass on the saving and, even if they do, roads and bridges don't get built just because they're cheap. Wages are bid down regardless.
Indeed so -- that's what the "part way" part means. After the disturbance, all the exchange rates in the new equilibrium can be different.
Squeeze a balloon and the balloon changes shape in a way that makes it push back harder on your hands. But the squeezing doesn't just change the shape; it also reduces the volume of the balloon. And a volume reduction by the same logic must make it push less hard on your hands. A contradiction?
Yes, the third sentence contradicts the first and is wrong.
It's not wrong (assuming the balloon is full of air.) If you don't think the volume reduction makes it push less hard, try making the same deformation to a water balloon. The water is nearly incompressible so there's far less volume reduction; consequently the water balloon will push back harder on your hands than the air balloon.
To say the third sentence contradicts the first is incorrect reasoning. Suppose putting an ice cube in a cup of water makes the water cool off at 6 degrees per minute, and suppose putting the cup on the stove makes it heat up at 10 degrees per minute. To say the third sentence contradicts the first is pretty much the same as saying "it heats up at 10 degrees per minute" contradicts "it cools off at 6 degrees per minute" and therefore if you put a cup of water with an ice cube in it on the stove then the universe will disappear in a puff of logic. That's not how the universe deals with opposing forces. The two effects just sum. 10 + -6 = 4, so if you put a cup of water with an ice cube in it on the stove then the water will just heat up at 4 degrees per minute. Squeezing an air balloon has two consequences and one makes it push back harder while the other makes it push back less hard, so the two effects just sum -- it pushes back harder than before but not as hard as a water balloon would. An influx of civil engineers has two consequences, so the two effects just sum -- wages drop, but they don't drop as much as they would have dropped if there weren't more civil engineering projects as a result.
No, just static equilibrium.
Disturbances also precipitate new equilibria. Squeeze yer balloon hard enough and it'll distend permanently or burst. Squeeze wages in general hard enough and there'll be fewer civil engineering projects as the economy settles into a below-capacity, demand-constrained equilibrium.
Quite possibly. Macroeconomics is complicated. If you're arguing that wages should be influenced by other things in addition to supply and demand, quite possibly -- I haven't seen anybody in this thread claiming the market rate is always optimal, whatever the heck "optimal" would mean. My point was that most of the arguments against supply and demand appear to be based on incoherent concepts of value. That of course doesn't touch arguments for bringing some third factor to bear on wages if, for example, it can be shown that doing so would increase GDP.