| 1. |
- A. Alkhamisi, Mahdi, et al.
(författare)
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Developing Ridge Parameters for SUR Model
- 2008
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Ingår i: Communication in Statistics, Theory and Methods. ; 37:4, s. 544-564
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Tidskriftsartikel (populärvet., debatt m.m.)
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| 2. |
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| 3. |
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| 4. |
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| 5. |
- Almasri, Abdullah, et al.
(författare)
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An illustration of the causality relation between government spending and revenue using wavelet analysis on Finnish data
- 2003
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Ingår i: Journal of Applied Statistics. - Carfax Publishing. - 0266-4763. ; 30:5, s. 571-584
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Tidskriftsartikel (refereegranskat)abstract
- Quarterly data for the period 1960: 1 to 1997: 2, conventional tests, a bootstrap simulation approach and a multivariate Rao's F-test have been used to investigate if the causality between government spending and revenue in Finland was changed at the beginning of 1990 due to future plans to create the European Monetary Union (EMU). The results indicate that during the period before 1990, the government revenue Granger-caused spending, while the opposite happened after 1990, which agrees better with Barro's tax smoothing hypothesis. However, when using monthly data instead of quarterly data for almost the same sample period, totally different results have been noted. The general conclusion is that the relationship between spending and revenue in Finland is still not completely understood. The ambiguity of these results may well be due to the fact that there are several time scales involved in the relationship, and that the conventional analyses may be inadequate to separate out the time scale structured relationships between these variables. Therefore, to investigate empirically the relation between these variables we attempt to use the wavelets analysis that enables us to separate out different time scales of variation in the data. We find that time scale decomposition is important for analysing these economic variables.
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| 6. |
- Almasri, Abdullah, et al.
(författare)
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Clustering using Wavelet Transformation
- 2008
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Ingår i: Handbook of research on cluster theory. - Cheltenham : Edward Elgar. - 978-1-84542-516-6 - 9781845425166 ; s. 169-186
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Bokkapitel (populärvet., debatt m.m.)
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| 7. |
- Almasri, Abdullah, et al.
(författare)
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Testing for climate warming in Sweden during 1850-1999, using wavelets analysis
- 2008
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Ingår i: Journal of Applied Statistics, 2008, vol. 35, issue 4, pages 431-443.
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Tidskriftsartikel (refereegranskat)abstract
- This paper describes an alternative approach for testing for the existence of trend among time series. The test method has been constructed using wavelet analysis which has the ability of decomposing a time series into low frequencies (trend) and high-frequency (noise) components. Under the normality assumption, the test is distributed as F. However, using generated empirical critical values, the properties of the test statistic have been investigated under different conditions and different types of wavelet. The Harr wavelet has shown to exhibit the highest power among the other wavelet types. The methodology here has been applied to real temperature data in Sweden for the period 1850-1999. The results indicate a significant increasing trend which agrees with the 'global warming' hypothesis during the last 100 years.
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| 8. |
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| 9. |
- Anxo, Dominique, 1953-, et al.
(författare)
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The Demand of Part-time in European Companies : A Multilevel Modeling Approach
- 2012
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Ingår i: Applied Economics. - 0003-6846. ; 44:8, s. 1057-1066
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Tidskriftsartikel (refereegranskat)abstract
- Part-time work is one of the most well-known « atypical » working time arrangements. In contrast to previous studies focusing on the supply side, the originality of our research is to investigate the demand-side of part-time work and to examine how and why companies use part-time work. Based on a large and unique sample of European firms operating in 21 member states, we use a multilevel multinomial modeling in a Bayesian environment. Our results suggest that the variations in the extent of part-time workers at the establishment level is determined more by country-specific features than by industry specific factors.
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| 10. |
- Arnesson, Leif, et al.
(författare)
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Coach succession and team performance; the impact of ability and timing: : Swedish ice hockey data
- 2009
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Ingår i: Journal of Quantitative Analysis in Sports (JQAS). - 1559-0410. ; 5:1
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Tidskriftsartikel (refereegranskat)abstract
- The purpose of this study is to identify a function for the team performance for professional ice hockey teams in Sweden. In order to understand how team performance relates to key variables such as coaching ability and coaching experience and succession, the OLS (Ordinary Least Squares) and the more robust quantile regression techniques are used to estimate team performance for the ice hockey teams. Quarterly data for the period 1975-2006 is used for this purpose. The results have shown that coaching ability has a rather significant positive effect on team performance, and that managerial succession during the season is found to have a rather significant negative effect on team performance. The results also indicate a strong correlation between coaching ability and team performance. Moreover, the quantile regression approach provided a better understanding regarding the dynamics of the factors that affect performance and provided more interesting results than the OLS normally does.
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