This discussion paper led to an article in the <I>Oxford Bulletin of Economics and Statistics</I> (2009). Vol. 71, pages 683-713.<P> This paper discusses identification, specification, estimation and forecasting for a general class of periodic unobserved components time series models with stochastic...</p></i>

As both the natural level of output and the New Keynesian output gap cannot be observed in practice, there is quite some debate on the question how these variables look like in practice. Rather than taking the standard approach of using a time trend or the HP-filter to obtain estimates of these...

As both the natural level of output and the New Keynesian output gap cannot be observed in practice, there is quite some debate on the question how these variables look like in practice. Rather than taking the standard approach of using a time trend or the HP-filter to obtain estimates of these...

This paper discusses identification, specification, estimation and forecasting for a general class of periodic unobserved components time series models with stochastic trend, seasonal and cycle components. Convenient state space formulations are introduced for exact maximum likelihood...

Automobile gasoline demand can be expressed as a multiplicative function of fuel efficiency, mileage per car and car ownership. This implies a linear relationship between the price elasticity of total fuel demand and the price elasticities of fuel efficiency, mileage per car and car ownership....

This paper focuses on a new concern in the small firm’s literature, namely what makes a small firm stay in business for a long time. It reflects a change in economic policy, away from an emphasis on volume of start-ups to an emphasis on quality of start-ups. The basic hypothesis is that...

The widespread use of pesticides in agriculture provides a particularly complex pattern of multidimensionalnegative side-effects, ranging from food safety related effects to the deterioratian of farmland ecosystems.The assessment of the economic implications of such negative processes is fraught...

Anchoring vignettes are increasingly used to identify and correct heterogeneity in the reporting of health, work disability, life satisfaction, political efficacy, etc. with the aim of improving interpersonal comparability of subjective indicators of these constructs. The method relies on two...

Automobile gasoline demand can be expressed as a multiplicative function of fuel efficiency, mileage per car and car ownership. This implies a linear relationship between the price elasticity of total fuel demand and the price elasticities of fuel efficiency, mileage per car and car ownership....

The widespread use of pesticides in agriculture provides a particularly complex pattern of multidimensional negative side-effects, ranging from food safety related effects to the deterioratian of farmland ecosystems. The assessment of the economic implications of such negative processes is...