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In diesem Beitrag wird eine Regressionsanalyse vorgestellt, die die Einflüsse auf die Entscheidung verheirateter deutscher Frauen untersucht, eine Erwerbstätigkeit aufzunehmen. Um Differenzen im Verhalten von ost- und westdeutschen Frauen zu ermitteln, erfolgte die Untersuchung getrennt in zwei Date...
Das Ziel der Arbeit ist die empirische Durchdringung individueller Wählermotive im Zusammenhang mit folgender Fragestellung: Welche Wähler sind für den "Midterm-Verlust" der im Bund regierenden Parteien bei Landtagswahlen verantwortlich? Es geht also um individuelles Mehrebenenwahlverhalten in der B...
We investigate a sample of 180 technology licensing contracts closed by German chemical, pharmaceutical, and electrical engineering companies between 1880 and 1913. A regression analysis shows that licensing contracts closed before a patent was granted and contracts closed between firms and individu...
Plasma 25-hydroxyvitamin D and premenopausal breast cancer risk in a German case-control study.
Laboratory and epidemiological data have linked vitamin D to breast cancer prevention. Beside dietary intake, endogenous production of vitamin D substantially contributes to a subject's vitamin D status. Most studies, however, have assessed dietary intake only. Although differential effects of vitam...
Persistence and determinants of firm profit in emerging markets
The paper studies the persistence of profit and its determinants in emerging markets. We apply Markov chain analysis, dynamic panel GMM estimation, and quantile regression techniques to a panel of approximately 3,000 Ukrainian companies. The empirical results show a moderate level of profit persiste...
PLS Path Modeling with Ordinal Data
Structural Equation Models (SEM) (Jöreskog, Sörbom 1979) are strictly related to consumer analysis, as they suit situations where a set of unobservable phenomena (called latent variables) can be described through sets of observable variables (called manifest variables). Among the methods for estimat...
The orthogonality assumption of seasonal and nonseasonal components for official quarterly unemployment figures in Germany and the US is examined. Although nonperiodic correlations do not seem to reject the orthogonality assumption, a periodic analysis based on correlation functions that vary with t...
New Neural Network Methods for Forecasting Regional Employment: An Analysis of German Labour Markets
In this paper, a set of neural network (NN) models is developed to compute short-term forecasts of regional employment patterns in Germany. NNs are modern statistical tools based on learning algorithms that are able to process large amounts of data. NNs are enjoying increasing interest in several fi...
Le présent travail veut s’inscrire dans une tradition de linguistique appliquée dont l’ambition consiste à allier théorie et empirisme. Lorsque l’on tâche de combiner deux domaines, on pourrait espérer qu’ils s’avèrent mutuellement enrichis ; Dans le meilleur des cas, la théorie permettrait non seul...
Le développement de la morphologie verbale de personne-nombre chez différents types d’apprenants
La morphologie verbale de personne-nombre se développe lentement chez les apprenants adultes (suédophones) de français L2. Ce développement, chez eux, ne semble pas relié au développement syntaxique, mais possiblement à des facteurs de fréquence de ces formes dans l’input. On ne peut pas non plus co...
To study the effect of different injection timings on the charge inhomogeneity, planar laser-induced fluorescence (PLIF) was applied to an operating engine. Quantitative images of the fuel distribution within the engine were obtained. Since the fuel used, iso-octane, does not fluoresce, a dopant was...
This paper assesses the relative efficiency of knowledge production in the OECD using a nonparametric DEA approach. Resources allocated to R&D are limited and should therefore be used efficiently given the institutional and legal constraints. This paper presents efficiency scores based on an interte...
In this paper on immigrant fertility in West Germany, we estimate the transition rates to second and third births, using intensity-regression models. The data come from the German Socio-Economic Panel Study. We distinguish women of the first and the second immigrant generations originating from Turk...
This paper presents a nonlinear approach for time-frequency representations (TFR) data analysis, based on a statistical learning methodology - support vector regression(SVR), that being a nonlinear framework, matches recent findings on the underlying dynamics of cardiac mechanic activity and phonoca...
This paper uses data from the German Socio-Economic Panel for the years 2000 to 2005 to study the earnings differential between self- and dependent employed German men. Constructing a counterfactual earnings distribution for the self-employed in dependent employment and using quantile regression dec...
Decomposing regional efficiency
Applying an outlier robust extension of the data envelopment analysis (DEA) followed by a geoadditive regression analysis, this study identifies and decomposes the efficiency of 439 German regions in using infrastructure and human capital. The findings show that the regions' efficiency is driven by ...
Das Ehrenamt im Technischen Hilfswerk
Das Ehrenamt hat sowohl in der Forschung als auch in der Politik seit Ende der 1980er Jahre zunehmend an Bedeutung gewonnen. Durch ökonomische und soziale Veränderungen, insbesondere die Reduktion staatlicher Leistungen, rückten Wohlfahrts- und Interessenverbände, Bürger- und Umweltinitiativen,...
Simultaneous measurements of early flame speed and local measurements of the major parameters controlling the process are presented. The early flame growth rate was captured with heat release analysis of the cylinder pressure. The local concentration of fuel or residual gas were measured with laser ...
In the present paper we examine the German cinema market using time series data of 49 years. Applying estimation techniques such as OLS, 2SLS and SUR, we identify interrelations between the number of screens, the average real prices and the demand for movies per inhabitant. Furthermore, we test for ...
Choices which change life satisfaction: Revising SWB theory to account for change
Using data from the long-running German Socio-Economic Panel (SOEP) 1984-2008, this paper analyses the effects of individual preferences and choices on subjective well-being (SWB). It is shown that preferences and choices relating to life goals/values, partner's personality, hours of work, social pa...
Choices which change life satisfaction: Revising SWB theory to account for change
Using data from the long-running German Socio-Economic Panel (SOEP) 1984-2008, this paper analyses the effects of individual preferences and choices on subjective well-being (SWB). It is shown that preferences and choices relating to life goals/values, partner's personality, hours of work, social pa...
Alcohol Use in Swedish Halls of Residence
In the year 2000, the alcohol habits of 1460 Swedish university students living in residence halls were assessed. The students had a mean age of 23.8 years, and 64% were male. The results from this baseline assessment show that the mean AUDIT score (± sd) was 10.3 ± 5.2 for males and 8.1 ± 4.7 for f...
Agglomeration economies and clustering: evidence from German firms
The paper quantifies the impact of agglomeration economies on the clustering of German firms. Therefore, I use the 2006 Innobarometer survey, which focuses on cluster characteristics and activities of German firms, to empirically identify agglomeration economies derived from the New Economic Geograp...
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