Thanks for thee birthday wishes, indeed I do get the feeling we’re arguing past each other. Or perhaps now I’m retreating with my tail between my legs in the face of two people agreeing with each other, both of whom are quite a bit more educated than one another (that’s what I get for using a physics analogy out of ignorance I guess!)
But let me try to restate my postition a little more clearly, I think you can (and modern economic theory does) state a few laws about human behaviour, my first example would be diminishing marginal utility (something Austrians agree with) that are self evident and should be taken as axioms. But other than that I don’t think there are too many other laws of human behaviour, there are empirical regularities and assumptions that we can make, but it seems to me (and correct me if I’m wrong) there are many more laws in physics than there are in economics. After this its necessary to applies this little economic theory combined with some empirical observations or assumptions to specific situations in the form of a model, using statistical methods to find the fit of the model. To take an earlier example I used, look at IO, if we come up with model in which one firm moves first by deciding the quantity it will produce and whether or not to merge and make a few reasonable assumptions about costs then you can come up with a model that does a pretty good job explaining merger waves. Of course, this model omits plenty of factors and its up to empirical methods to decide whether those missing factors would change the implications in any meaningful way, of course the name of firm for example wouldn’t. Moreover, basic economic theory is important in all of this. If you change the basic facts of economic thinking such as diminishing marginal utility the demand curve would be very different etc.
But the fact remains that without some heavy empirical work about how firms set prices or how firms interact (sequential or not) you’re basic facts of economic reasoning aren’t going to get you much mileage. I guess the key point I’m making is that we need an interaction between theory and empirics that I think Austrian economics is a little short on. You start with some very basic facts and then use these to explain empirical phenomena, you develop a model and put it to the test against the data and then see how well it does. No doubt, you fail to explain something and then you use the existing body of economic theorizing to look at why. You change to model and put it to the test again, and so on and so forth. And this is how we can expect our body of economic knowledge to grow.
By the way, I read this recently and found it interesting, maybe you might too: http://economiclogic.blogspot.com/2011/03/modelling-without-theory.html
I don’t think I’ve said this yet (and maybe even called you a little arrogant) but I actually enjoy your posts, they’re informed and cause me to think pretty deeply over these issues more than most of the stuff on this forum (even if you’re still wrong :p) so props to you for that.