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The New Palgrave Dictionary of Economics
Real rigidities are forces that reduce the responsiveness of firms' profit-maximizing prices to variations in aggregate output resulting from variations in aggregate demand. Real rigidities make firms less inclined to take actions that dampen movements in aggregate output, and so increase the responsiveness of output to disturbances. They appear essential to any successful explanation of short-run macroeconomic fluctuations. As a result, various forms of real rigidity pervade modern models of business cycles.doi:10.1057/978-1-349-95121-5_2475-1 fatcat:h3h4qzaugnbijn2n7urcuu4fwy