Showing 1 - 10 of 17
This discussion paper resulted in a publication in the 'International Journal of Forecasting', 2009, 27, 282-303.<P> The sum of squared intraday returns provides an unbiased and almost error-free measure of ex-post volatility. In this paper we develop a nonlinear Autoregressive Fractionally...</p>
Persistent link: https://www.econbiz.de/10011257135
A key application of long memory time series models concerns inflation. Long memory implies that shocks have a long-lasting effect. It may however be that empirical evidence for long memory is caused by neglecting one or more level shifts. Since such level shifts are not unlikely for inflation,...
Persistent link: https://www.econbiz.de/10011257369
There has recently been growing interest in modeling and estimating alternative continuous time multivariate stochastic volatility models. We propose a continuous timefractionally integrated Wishart stochastic volatility (FIWSV) process. We derive the conditional Laplace transform of the FIWSV...
Persistent link: https://www.econbiz.de/10011257492
This paper develops a novel approach to modeling and forecasting realized volatility (RV) measures based on copula functions. Copula-based time series models can capture relevant characteristics of volatility such as nonlinear dynamics and long-memory type behavior in a flexible yet parsimonious...
Persistent link: https://www.econbiz.de/10011257654
Modelling covariance structures is known to suffer from the curse of dimensionality. In order to avoid this problem for forecasting, the authors propose a new factor multivariate stochastic volatility (fMSV) model for realized covariance measures that accommodates asymmetry and long memory....
Persistent link: https://www.econbiz.de/10011272593
simulation experiments(over a 20-year period) to quantify the importance of convergence, household fixed effectsand shocks. First …, we find powerful convergence. In the absence of shocks and withouthousehold fixed effects there is rapid growth over the …
Persistent link: https://www.econbiz.de/10011256948
-country variation in productivity performance depends on the level of aggregation. Both patterns of convergence as well as divergence …This paper provides an empirical analysis of energy- and labour-productivity convergence at a detailed sectoral level … for 14 OECD countries, covering the period 1970-1997. A fã-convergence analysis shows that the development of cross …
Persistent link: https://www.econbiz.de/10011257015
We present a detailed analysis of energy intensity developments across 23 service sectors in 18 OECD countries over the period 1980−2005. We find that the shift towards a service economy has contributed to lower overall energy intensity levels in the OECD, but this contribution would have been...
Persistent link: https://www.econbiz.de/10011257306
This paper provides an empirical analysis of decoupling economic growth and energy use and its various determinants by exploring trends in energy- and labour productivity across 10 manufacturing sectors and 14 OECD countries for the period 1970-1997. We explicitly aim to trace back aggregate...
Persistent link: https://www.econbiz.de/10011255666
The topic of convergence is at the heart of a wide-ranging debate in the growth literature. Empirical studies of … convergence differ widely in their theoretical backgrounds, empirical specifications and in their treatment of cross …-sectional heterogeneity. Despite these differences, a rate of convergence of about 2% has been found under a variety of different conditions …
Persistent link: https://www.econbiz.de/10011255754