Econophysics enjoyed a brief vogue in the late 1990s and early 2000s, but the field has mostly dried up. Much of what the econophysicsts "learned" turned out ei

Econophysics enjoyed a brief vogue in the late 1990s and early 2000s, but the field has mostly dried up. Much of what the econophysicsts "learned" turned out either to restate things economists already knew (this time in physics-speak) or to be results that were very sensitive to modeling assumptions. But mostly the physicists gave up because they discovered that problems in economics are much harder than problems in physics; everything is a heterogeneous n-body problem with endogenously determined rules governing interactions.