Showing 1 - 9 of 9
Outcomes in economic evaluations, such as health utilities and costs, are products of multiple variables, often requiring complete item responses to questionnaires. Therefore, missing data are very common in cost-effectiveness analyses. Multiple imputations (MI) are predominately recommended and...
Persistent link: https://www.econbiz.de/10014504213
Sample surveys are often affected by missing observations and non-response caused by the respondents' refusal or unwillingness to provide the requested information or due to their memory failure. In order to substitute the missing data, a procedure called imputation is applied, which uses the...
Persistent link: https://www.econbiz.de/10015051624
This study assesses five approaches for imputing missing values. The evaluated methods include Singular Value Decomposition Imputation (svdPCA), Bayesian imputation (bPCA), Probabilistic imputation (pPCA), Non-Linear Iterative Partial Least squares imputation (nipalsPCA) and Local Least Square...
Persistent link: https://www.econbiz.de/10012229202
This paper argues that, when using a large database, organizational researchers would benefit from the use of specific multivariate exploratory data analysis (MEDA) before performing statistical modelling. Issues such as the representativeness of the database across domains (countries or...
Persistent link: https://www.econbiz.de/10013327684
Zur Beurteilung des sozialen und wirtschaftlichen Lebensstandards in der Europäischen Union (EU) strebt die amtliche Statistik an, Einkommen und Konsumausgaben privater Haushalte gemeinsam zu betrachten. Hierfür existiert derzeit keine einheitliche Datengrundlage. Die Einkommensangaben sind...
Persistent link: https://www.econbiz.de/10012604548
Persistent link: https://www.econbiz.de/10011599640
Researchers are often faced with the challenge of developing statistical models with incomplete data. Exacerbating this situation is the possibility that either the researcher's complete-data model or the model of the missing-data mechanism is misspecified. In this article, we create a formal...
Persistent link: https://www.econbiz.de/10012696252
In this paper we deal with parametric estimation of the copula in the case of missing data. The data items with the same pattern of complete and missing data are combined into a subset. This approach corresponds to the MCAR model for missing data. We construct a specific Cramér–von Mises...
Persistent link: https://www.econbiz.de/10015358820
Im Rahmen der Außenhandelsstatistik wird der Warenverkehr zwischen Deutschland und den anderen Mitgliedstaaten der Europäischen Union durch eine Befragung von Unternehmen erfasst. Neue innovative Verfahren und technischer Fortschritt im Statistischen Bundesamt und auf europäischer Ebene haben...
Persistent link: https://www.econbiz.de/10015327897