Information Frictions, Central Bank Communication, and Monetary Policy
Final Report Abstract
This research project explores critical aspects of economic behavior and monetary policy that have significant implications for central bank communication strategies, the effectiveness of monetary interventions, and the formulation of optimal stabilization policies. The first study investigates the paradoxical impact of increased information in an economy characterized by nominal rigidity. While more information can lead to better coordination in pricing decisions, it may also exacerbate business cycle fluctuations and price dispersions, ultimately reducing social welfare. This finding has important implications for how central banks communicate with the public and assess the societal benefits of new information technologies, such as AI. The second paper addresses a long-standing puzzle in economics: the disproportionate effect of monetary policy on long-term interest rates, known as excess sensitivity. The research reveals an asymmetry in this phenomenon, where monetary easing (i.e., lowering interest rates) has a stronger impact on long-term rates than monetary tightening (i.e., raising rates). The study introduces a novel model that explains this asymmetry through the central bank’s private information and the public’s uncertainty about the accuracy of policy signals. The findings suggest that easing monetary policy may not always produce the desired effects on economic output, highlighting the complexities of central bank interventions. The third study reexamines the optimal approach to price stabilization in a multi-sector economy, challenging conventional wisdom. Contrary to traditional models that prioritize price stability in sectors with stickier prices, this research shows that when firms face limitations in their ability to process information (rational inattention), sectors with more flexible prices should receive less attention in stabilization policies. This counterintuitive result is supported by empirical evidence and suggests a need to rethink how central banks implement price stabilization strategies.
