This paper assesses the Layard et al. (1991) NAIRU framework for explaining unemployment. Their approach is distinct from the natural rate of unemployment framework in that it postulates a short-run NAIRU influenced by 'hysteresis'. It is pointed out that this is not hysteresis in the meaning...

The World Bank has published estimates of sustainability of consumption paths by adjusting saving rates to take account of the depletion of non-renewable resources. During the period of North Sea oil production Scotland has been in a fiscal union with the rest of the UK. The present paper...

The efficient markets hypothesis implies that arbitrage opportunities in markets such as those for foreign exchange (FX) would be, at most, short-lived. The present paper surveys the fragmented nature of FX markets, revealing that information in these markets is also likely to be fragmented. The...

The World Bank has published estimates of sustainability of consumption paths by adjusting saving rates to take account of the depletion of non-renewable resources. During the period of North Sea oil production Scotland has been in a fiscal union with the rest of the UK. The present paper...

The efficient markets hypothesis implies that arbitrage opportunities in markets such as those for foreign exchange (FX) would be, at most, short-lived. The present paper surveys the fragmented nature of FX markets, revealing that information in these markets is also likely to be fragmented. The...

This paper deals with the macroeconomic consequences of discontinuous adjustment by heterogenous agents. The method used to analyze this problem is based on the Krasnosel'skii decomposition of systems into hysteresis operators. This method is applied to a simple model of asset-switching. The...