Using a simple stochastic growth model, this paper demonstrates that the coefficient of variation of aggregate output or GDP does not necessarily go to zero even if the number of sectors or economic agents goes to infinity. This phenomenon known as non-self-averaging implies that even if the...

Using a simple stochastic growth model, this paper demonstrates that the coefficient of variation of aggregate output or GDP does not necessarily go to zero even if the number of sectors or economic agents goes to infinity. This phenomenon known as non-self-averaging implies that even if the...

Introduction -- Why Are Standard Micro-foundations Wrong? -- Statistical Physics and Macroeconomics -- Stochastic Macro-Equilibrium: A Micro-foundation of Keynesian Economics -- The Business Cycle: The Role of Aggregate Demand -- Demand Saturation and Economic Growth ―― Where Keynes and...