Before revision:  Those stimuli are derived from residual of moving-averaged fluctuations of the IIP left over after subtracting the long-period components due to the business cycles .
After revision:  Those stimuli are derived from residual of moving-averaged fluctuations of the IIP left over after subtracting the long-period components arising from inherent business cycles. The observation reveals that the fluctuation-dissipation theory is applicable to an economic system that is supposed to be far from physical equilibrium .