Monetary policy, sectoral comovement and the credit channel

Federico Di Pace and Christoph Görtz

There is ample evidence that a monetary policy tightening triggers a decline in consumer price inflation and a simultaneous contraction in investment and consumption (eg Erceg and Levin (2006) and Monacelli (2009)). However, in a standard two-sector New Keynesian model, consumption falls while investment increases in response to a monetary policy tightening. In a new paper, we propose a solution to this problem, known as the ‘comovement puzzle’. Guided by new empirical evidence on the relevance of frictions in credit provision, we show that adding these frictions to the standard model resolves the comovement puzzle. This has important policy implications because the degree of comovement between consumption and investment matters for the effectiveness of monetary policy.

Continue reading “Monetary policy, sectoral comovement and the credit channel”