Noisy Information, Risk Sharing, and International Business Cycles

We introduce a noisy information structure into an otherwise standard international real business cycle model with two countries. When domestic firms observe current foreign technology with some noise, predictions of the model on international correlation can be very different from those of a standard perfect information model. We show that the model can explain: (a) positive output correlation both in complete and incomplete market models, (b) consumption correlation smaller than output correlation with an introduction of information‐constrained consumers, and (c) observation of both positive and negative productivity–hours correlation in two countries.