The performance of predictions models can be assessed using a variety of methods and metrics. Several new measures have recently been proposed that can be seen as refinements of discrimination measures, including variants of the AUC (Area Under the ROC curve), such as the H index. It is widely...

In this study, I developed operational versions of Hirsch's H index that can be applied to each researcher's curriculum vitae (CV) to allow cross-disciplinary comparisons. The revised indices account for anomalies that potentially arise from tactical or opportunistic citation and publication...

In this study, I developed operational versions of Hirsch's H index that can be applied to each researcher's curriculum vitae (CV) to allow cross-disciplinary comparisons. The revised indices account for anomalies that potentially arise from tactical or opportunistic citation and publication...

While there is an extensive literature on tax evasion a further aspect of cheating on the state, namely benefit fraud, has gained relatively modest attention in the economic literature. This paper seeks to fill this gap. We explore differences between benefit fraud and tax evasion due to...

This study investigates the relationship between the division of housework in couples and the local gender equality context. We use data from the Norwegian Generations and Gender survey 2007 combined with a range of macrolevel measures on gender equality in the municipality where the respondents...

See also the publication in <A href="http://onlinelibrary.wiley.com/doi/10.1111/j.1467-6419.2012.00723.x/abstract">'Journal of Economic Surveys'</A>, 26(3), 468-91.<p>Empirical studies in spatial economics have shown that agglomeration economies may be a source of the uneven distribution of economic activities and economic growth across cities and regions. Both localization and...</p></a>

Organizations offer employees with opportunities to cultivate their innovativeness and facilitate greater productivity. In this paper we analyze preconditions for individual productivity of agricultural researchers in Nigeria, measured in terms of the self-reported number of scholarly...

In a multilingual context, this study investigates the role of language skills on mathematics achievement. It compares characteristics of 5048 Grade-6 learners in 275 Namibian schools. The outcome variable is the standardized SACMEQ mathematics score collected in year 2000. Hierarchical linear...

Given the recent steadily declining consumption of school milk in Germany, a research project was set up by the German Federal Ministry of Food, Agriculture and Consumer Protection, in affiliation with other institutions, to retrieve quantifiable information on the different influencing factors...

The complex datasets cannot be analyzed using only simple regressions. Multilevel models (also known as hierarchical linear models, nested models, mixed models, random coefficient, random-effects models, random parameter models or split-plot designs) are statistical models of parameters that...