I was always interested in both Physics and Economics and did studies in both disciplines.<p>As a physicist, the models that I encountered in economic theory always left me quite disappointed. The main reason for this was that -like the article says- most of the models used in Economics are based on abstract reasoning about &quot;ideal&quot; markets and actors (or more recently on game-theoretic ideas) instead of experimental data. One reason for this is of course that when many of those models were developed (in the 50s or earlier) there simply was no reliable (micro-)data available that one could develop a theory against. Another big problem that kept Economics from taking a more experimental stance towards model generation is of course that until recently it was very hard or outright impossible to conduct large-scale experiments, which are the main instrument to validate (or better, not falsify) a given theory in other disciplines such as Physics or Biology.<p>That said, the recent computerization of all aspects of business and the creation of virtual economies -like Eve Online, World of Warcraft- and &quot;transparent&quot; markets -like Bitcoin- should provide ample data to develop &quot;real&quot; models of economic behavior against, and I think that many researchers actually already make use of this data.<p>The theories that will result from this will probably be more like those developed in statistical mechanics though -i.e. making statements about the aggregate behavior of the system- rather than those developed e.g. in electrodynamics, where we usually can predict the behavior of even a single particle. Would love -and be at bit scared- to be proved wrong about this of course :)