BlawBlaw wrote:In the same way that evolution is a conjecture.
No, it's a scientific theory. It was a conjecture when it was first thought out. But since then it has developed into a scientific theory that makes testable predictions, many of which are verified, and many of which can be verified in a laboratory setting. Detailed evolutionary models make further predictions that can be tested and applied by future experiments and observations.
BlawBlaw wrote:No, I am assuming that a minimum wage worker has a maximum value equal to the minimum wage.
Yes you are.
BlawBlaw wrote: If they were worth more in the market, they would not be earning minimum wage.
Theology.
BlawBlaw wrote:But whether or not you wear a jacket is determined by the season and the relative position of the Earth and the Sun. The fact that I put on a T-shirt is less important that if it is February or July in terms of how warm or cold I will be. That choice on my part is virtually irrelevant.
OK -- so wear a winter coat in July and a tshirt in February, and then get back to me on whether or not the decision feels irrelevant.
It's a huge difference. In the case of the winter, it's not "virtually irrelevant", it's the difference between life and death.
First off, the prevailing main stream economics views are neo-classical which come from Alfred Marshall et al in the early 20th century. Keynes, and the Chicago School have been duking it out for half a century while marxists and the Austrians cling to the fringes. The "labour theory of value" is strictly Marx: no one else bought in to it then and basically only bought and paid for union economists (who are generally marxists) believe that today.
I think you're implying that Marx is responsible for the theory of value. He's not. He inherited it from his intellectual predecessors, Adam Smith and David Ricardo, among others.
http://en.wikipedia.org/wiki/Labor_theory_of_valueI would be amazed if you actually think Marx is responsible for the labor theory of value.
The fact the views of academic economists are labeled "neo-classical" is irrelevant. Academics love to attach the prefixes "neo" and "post" to various schools of thinking, and they don't always necessarily mean what the naive interpretation implies.
BlawBlaw wrote:Of course, marginal utility or the marginal labour product (the latter is what we are really talking about) can be measured directly, but then again neither can a pi-meson or all the other goofy things physicists claim to have conjured up in the LHC. However, the evidence leads back to the theory for it to be accepted.
You've compared economics to evolution, and now you're comparing it to particle physics. I suspect it is also on par with chemistry, computer science, and cell biology.
In all due respect to you, Blaw Blaw, The Efficient Market Hypothesis is of lesser epistemological merit than Maxwell's Equations.
BlawBlaw wrote:And the analogy between economists and climate scientists is completely apropos because neither are particularly good at predicting anything a useful distance in advance.
There is the further difference that they have different foundations. Climatology starts from known science: physics, chemistry, geography, et cetera. It's applying known material. Economics starts from an unknown foundation: the behavior of human beings. It makes assumptions about said behavior (axioms), and then shows, mathematically (to the extent of the limited mathematical aptitudes of most economists), that these assumptions lead to guaranteed outcomes. However, there's no reason to believe these axioms.
Let's go query one of the greatest thinkers of human history and find out what he thinks.
Paul Dirac wrote:The underlying physical laws necessary for the mathematical theory of a large part of physics and the whole of chemistry are thus completely known, and the difficulty is only that the exact application of these laws leads to equations much too complicated to be soluble.
That is the situation with which climatology begins. There are challenges there, but at least they're not debating the merits of phlogiston, homo economicus, or other such theories.
Anyhow, I think this discussion has cleared up some issues for me. Both economics and real science largely operate by assuming their foundations. The difference is that there is a lot more analysis needed as to the foundations of economics. On the other hand, the foundations of applied physics are entirely known at this point, to an accuracy of 10 or 12 decimal figures or more.