In traditional Keynesian and neoclassical models, the transmission of product demand changes to the labour market generally involves wage-price sluggishness or counter-cyclical real wage movements. In practice, however, real wages are often acyclical or procyclical, and wages and prices are...

After a brief review of the main differences between New and Old Keynesian economics from the 1960s this paper focuses on a tension between traditional sluggish measures of potential output commonly used by policy-makers and the New Keynesian (NK) notion of this variable which conceptualizes it...

Why is inflation so much lower and at the same time more stable in developed economies in the 1990s, compared with the 1970s? This paper suggests that the United Kingdom, United States and other countries may have escaped from a volatile inflation equilibrium. Our argument builds on the story...

The paper discusses some fundamental problems in monetary economics associated with the determination and role of the numéraire. The issues are introduced by formalising a proposal, attributed to Eisler, to remove the zero lower bound on nominal interest rates by unbundling the numéraire and...

This paper provides a brief, non-technical survey of the major theories about why people remain unemployed. The aim is to provide a macroeconomic perspective on the microeconomic problem of why people don't find work. The first section deals with market-clearing theories: the natural rate...

Nearly all post-war recessions were preceded by oil-price shocks, but is this because spikes in the price of oil cause economic downturns? At the heart of this question lies an identification problem: oil prices and the state of the world economy are endogenously determined. This paper uses...

We show that the stock market may fail to aggregate information even if it appears to be efficient and that the resulting decrease in the information content of stock prices may drastically reduce welfare. We solve a macroeconomic model in which information about fundamentals is dispersed and...

A method to estimate DSGE models using the raw data is proposed. The approach links the observables to the model counterparts via a flexible specification which does not require the model-based component to be solely located at business cycle frequencies, allows the non model-based component to...

This chapter discusses different approaches pursued to explore three broad questions related to technology diffusion: what general patterns characterize the diffusion of technologies, and how have they changed over time; what are the key drivers of technology, and what are the macroeconomic...

We introduce the information microstructure of a canonical noisy rational expectations model (Hellwig, 1980) into the framework of a conventional real business cycle model. Each household receives a private signal about future productivity. In equilibrium, the stock price serves to aggregate and...