Likewise, students of economics can save a wealth of time by immediately stopping to read an article or a book as soon as the concept of equilibrium is introduced.
Equilibrium, or by implication, disequilibrium, is a NONENTITY. Of course, there are some other NONENTITIES in conventional economics, but equilibrium is the most wasteful.
Identifying NONENTITIES is one of the defining activities of science. It took the physicists about eighteen centuries to find out that epicycles are NONENTITIES. As John Stuart Mill put it: "Mankind in all ages have had a strong propensity to conclude that wherever there is a name, there must be a distinguishable separate entity corresponding to the name; ..."
General equilibrium is the economic counterpart of a perpetual motion machine; no real thing could possibly correspond to the name. The scientific content of all variants of equilibrium models is nil — it is superstition wrapped in mathematics. The fact that legacy economics clings to equilibrium does not testify to equilibrium but against legacy economics.
Whether economists get rid of their idiosyncratic NONENTITIES faster than physicists did cannot be said after only two centuries at the proto-scientific stage of development. At times, fundamental changes happen overnight.
© 2013_12 EKH, except original quotes
For more about NONENTITY, see AXECquery.