We introduce firm heterogeneity into the standard monopolistically competitive real business cycle (RBC) model. The fundamental equilibrium path is derived and the time-series properties of aggregate GDP are studied analytically. Although firms' productivities are subject to temporary shocks,...

We introduce firm heterogeneity into the standard monopolistically-competitive Real Business Cycle (RBC) model. The fundamental equilibrium path is derived and the time series properties of aggregate GDP are studied analytically. Although firms' productivities are subject to temporary shocks,...

Suppose we have observations ranging over t=0,1,…T on real net investment, {I_{n,t}}₀^{T}, and on real gross investment, {I_{g,t}}₀^{T}. We derive a method of calculating the depreciation rate for each of the periods {δ_{t}}₁^{T}, and estimating `the' implied net capital stock...