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Diskussionspapiere 1065 / 2010
The amendment to the German Trade and Crafts Code in 2004 offers a natural experiment to asses the causal effects of this reform on the probabilities of being self-employed and transition into and out of self-employment, using cross-sections (2002-2006) of German microcensus data. This study applies the difference-in-differences technique in logit models for four occupational groups. Easing the educational ...
2010| Davud Rostam-Afschar
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Externe referierte Aufsätze
We empirically demonstrate a practical approach of efficiency evaluation with limited data availability in some regulated industries. We apply PCA-DEA for radial efficiency measurement to U.S. natural gas transmission companies in 2007. PCA-DEA reduces dimensions of the optimization problem while maintaining most of the variation in the original data. Our results suggest that the methodology reduces ...
In:
Review of Network Economics
9 (2010), 2, Article 4
| Maria Nieswand, Astrid Cullmann, Anne Neumann
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Diskussionspapiere 991 / 2010
Population surveys around the world face the problem of declining cooperation and participation rates of respondents. Not only can item nonresponse and unit nonresponse impair important outcome measures for inequality research such as total household disposable income; there is also a further case of missingness confronting household panel surveys that potentially biases results. The approach commonly ...
2010| Joachim R. Frick, Markus M. Grabka, Olaf Groh-Samberg
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SOEPpapers 290 / 2010
Population surveys around the world face the problem of declining cooperation and participation rates of respondents. Not only can item nonresponse and unit nonresponse impair important outcome measures for inequality research such as total household disposable income; there is also a further case of missingness confronting household panel surveys that potentially biases results. The approach commonly ...
2010| Joachim R. Frick, Markus M. Grabka, Olaf Groh-Samberg
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SOEPpapers 274 / 2010
We show that the choice of the welfare measure has a substantial impact on the degree of welfare-related health inequality. Combining various income and wealth measures with different health measures, we calculate 80 health concentration indices. The influence of the welfare measure is more pronounced when using subjective health measures than when using objective health measures.
2010| Nicolas R. Ziebarth, Joachim R. Frick
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SOEPpapers 263 / 2010
In recent decades, many firms offered more discretion to their employees, often increasing the productivity of effort but also leaving more opportunities for shirking. These "high-performance work systems" are difficult to understand in terms of standard moral hazard models. We show experimentally that complementarities between high effort discretion, rent-sharing, screening opportunities, and competition ...
2010| Björn Bartling, Ernst Fehr, Klaus M. Schmidt
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SOEPpapers 252 / 2009
Reliable measures of poverty are an essential statistical tool for public policies aimed at reducing poverty. In this paper we consider the reliability of income poverty measures based on survey data which are typically plagued by missing data and measurement error. Neglecting these problems can bias the estimated poverty rates. We show how to derive upper and lower bounds for the population poverty ...
2009| Cheti Nicoletti, Franco Peracchi, Francesca Foliano
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Diskussionspapiere 962 / 2009
This paper provides an empirical demonstration for a practical approach of efficiency evaluation against the background of limited data availability in some regulated industries. Here, traditional DEA may result in a lack of discriminatory power when high numbers of variables but only limited observations are available. We apply PCA-DEA for radial efficiency measurement to US natural gas transmission ...
2009| Maria Nieswand, Astrid Cullmann, Anne Neumann
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Externe referierte Aufsätze
In trying to capture complete within-household heterogeneity, household panel surveys typically try to interview all adult household members. Following from this, such surveys tend to suffer from partial unit nonresponse (PUNR), that is, the nonresponse of at least one member of an otherwise participating household, most likely yielding an underestimation of aggregate household income. Using data from ...
In:
Sociological Methods & Research
41 (2012), 1, S. 89-123
| Joachim R. Frick, Markus M. Grabka, Olaf Groh-Samberg
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SOEPpapers 50 / 2007
In normative public economics it is crucial to know how fast the marginal utility of income declines as income increases. One needs this parameter for cost-benefit analysis, for optimal taxation and for the (Atkinson) measurement of inequality. We estimate this parameter using four large cross-sectional surveys of subjective happiness and two panel surveys. Altogether, the data cover over 50 countries ...
2007| Richard Layard, Guy Mayraz, Stephen J. Nickell