In the opinion of the economists here, what are some of the more important theories in economics that remain untested? By untested I mean theories that, though perhaps evaluated using empirical data, have not been tested in a laboratory setting.
This interests me because of experimentalists track record with fundamentally altering how the field views certain theories. The most obvious example of tested theories are expected utility theory and the convergence of double auction markets with no restrictions.
What theories do you think the field should eventually test and why?
monetary policy experiments: