Abstract
Recent empirical evidence suggests that product creation is procyclical and it occurs largely within existing firms. Motivated by these findings, the current paper investigates the role of intra-firm product scope choice in a general equilibrium economy with oligopolistic producers. It shows that the multi-product nature of firms makes the economy susceptible to sunspot equilibria. The model is estimated via Bayesian methods. Artificial business cycles closely resemble empirically observed fluctuations with sunspots explaining a significant portion of U.S. business cycles.
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