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Statistical Analysis in surveys is often facing missing data. As case-wise deletion and single imputation prove to have undesired properties, multiple imputation remains as a measure to handle this problem. In a longitudinal study, where for some missing values past or future data points might...
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% in Germany or Japan, around 15% in US, France, Korea or Italy, about 20% in Sweden, Finland or Switzerland, about 30% in … compared to all other EU member states as well as compared to OECD member states (except Japan). The focus on Germany is …
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Die schwere Wirtschaftskrise 2008/09 hatte substanzielle Auswirkungen auf die Innovationstätigkeit der deutschen Wirtschaft. Die Umsatz- und Gewinneinbußen führten zu einem kräftigen Rückgang der Innovationsausgaben. Davon waren primär Investitionen für neue Produkte und verbesserte...
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