Communication in a monetary policy committee
We model monetary policy decisions as being taken by a group of heterogeneous policy makers, organized in a committee. Intuitively, when MPC members disclose and discuss the arguments behind their view on the interest rate, the quality of the collective decision should be higher compared to merely taking a simultaneous vote. We show that in some cases this intuition need not be correct. We also find that communication is a relatively effective way to implement the ‘knowledge pooling’ argument in favor of collective decision-making, compared to expanding the size of a committee. Moreover, decision-making with internal communication appears generally more robust in situations when heterogeneity of members is not adequately captured by decision-making rules.
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