The macroeconomic implications of firms' lumpy investment behavior are subject to ongoing research. Lumpy investment … periods, thereby reducing the frequency of investment activities. Using a dynamic stochastic general equilibrium model with … compute firms' optimal decisions on investment, utilization and labor demand. Compared to the constant utilization model, the …

capitalization, exploration investment and discoveries. To explain and quantify these four effects, we use an analytical model of … investment in exploration capital with intertemporal adjustment costs, depletion of reserves and market capitalization, and …