Before revision:  The Minimal Spanning Tree analysis of those time-varying networks of stocks demonstrates that the crisis drove the market from a star-like random network in the pre-crisis period, to a highly clustered community structure during theGreat Recession . A comparison with theGeneral Industry Classification Standard conveys the impression that the crisis, besides its devestating macroeconomic effect, helped to  restore the stock market's ceased order of the pre-crisis era  .
After revision:  The Minimal Spanning Tree analysis of those time-varying networks of stocks demonstrates that the crisis drove the market from a star-like random network in the pre-crisis period, to a highly clustered community structure during theGreat Recession General Industry Classification Standard conveys the impression that the crisis, besides its devestating macroeconomic effect, helped to restore the stock market's ceased order of the pre-crisis era .