[christofd]

Hmm... they have the capability of scientists: take current financial theory, e.g. Journal of Finance... these guys are high caliber mathematicians and physicists...

Also, the work done in Econometrics and Statistics in the field is totally solid. So, I wouldn't say they're not scientists. Or take Game Theory etc. - a lot of fields in Econ could just as well be in AI.

Anyway, macro's set of classical assumptions of modeling aggregate decisions based on rationality/ price-taking is too simple. Eventually we'll have to embrace more ideas out of complex systems analysis... but then all those neat macro formulas might not work out so well.

My two cents.