This paper explores the relationship between aggregate and relative congestion, returns to scale and economic growth. Aggregate congestion reduces the effective productivity of capital; relative congestion reduces the effective productivity of labour. Both forms of congestion adversely affect...

This paper explores the relationship between aggregate and relative congestion, returns to scale and economic growth. Aggregate congestion reduces the effective productivity of capital; relative congestion reduces the effective productivity of labour. Both forms of congestion adversely affect...

We examine "Forward Guidance Contracts", which make central bankers' utility contingent on the precision of interest-rate forecasts for some time. Such Forward Guidance Contracts are a exible commitment device and can improve economic performance when the economy is stuck in a liquidity trap....

We introduce a new type of incentive contract for central bankers: inflation forecast contracts, which make central bankers’ remunerations contingent on the precision of their inflation forecasts. We show that such contracts enable central bankers to influence inflation expectations more...