Since the publication of Keynes' "General Theory of Employment, Interest, and Money" in 1936 many new ideas and solution concepts for macroeconomic problems emerged, disappeared, and were combined in order to appropriately describe macroeconomic phenomena. Nowadays, New Keynesian frameworks are...

We argue that the complex interactions of competitive heterogeneous firms lead to a statistical equilibrium distribution of firms' profit rates, which turns out to be an exponential power (or Subbotin) distribution. Moreover, we construct a diffusion process that has the Subbotin distribution as...