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Refereed essays Web of Science
It is still not well understood how and why developmental trajectories of self-esteem change, particularly in late life. We investigated the role of resources for self-esteem change across adulthood. In detail, we explored between-person differences in self-esteem levels and change in relation to resources with participants who ranged in age from 17 to 100 years. Study 1 consisted of a cross-sectional ...
In:
European Journal of Ageing
11(2014), 2, S. 109-119
| Jenny Wagner, Frieder R. Lang, Franz J. Neyer, Gert G. Wagner
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Refereed essays Web of Science
Following two parental leave reforms in West Germany, this research explores how child care and housework time changed among couples who have just had a child. The reform in 1992 extended the low paid or unpaid parental leave period, whereas the 2007 reform introduced income-dependent compensation and two "daddy months". This study contributes to the literature by examining different mechanisms on ...
In:
Journal of Social Policy
43 (2014), 2, S. 351-372
| Pia S. Schober
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Refereed essays Web of Science
Objectives: To examine compliance with the Baby-Friendly Hospital Initiative (BFHI) as well as evaluate the BFHI and its components on breastfeeding initiation and duration overall and according to maternal education level. . - Design: Quasi-experimental study using data from the Pregnancy Risk Assessment Monitoring System (PRAMS) from 2004 to 2008. . - Setting: Birth facilities in Maine. . - Participants: ...
In:
Archives of Disease in Childhood
99 (2014), 2, S. 138-143
| Summer Sherburne Hawkins, Ariel Dora Stern, Christopher F. Baum, Matthew W. Gillman
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Refereed essays Web of Science
We study a government program in Uganda designed to help the poor and unemployed become self-employed artisans, increase incomes, and thus promote social stability. Young adults in Uganda's conflict-affected north were invited to form groups and submit grant proposals for vocational training and business start-up. Funding was randomly assigned among screened and eligible groups. Treatment groups received ...
In:
The Quarterly Journal of Economics
129 (2014),2, S. 697-752
| Christopher Blattman, Nathan Fiala, Sebastian Martinez
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Refereed essays Web of Science
In:
Economics Letters
123 (2014), 2, 118-121
| Andreas Harasser
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Refereed essays Web of Science
This article evaluates an expansion of employer-mandated sick leave from 80% to 100% of forgone gross wages in Germany. We employ and compare parametric difference-in-difference (DID), matching DID and mixed approaches. Overall workplace absences increased by at least 10% or 1 day per worker per year. We show that taking partial compliance into account increases coefficient estimates. Further, heterogeneity ...
In:
Journal of Applied Econometrics
29 (2014), 2, S.208-230
| Nicolas R. Ziebarth, Martin Karlsson
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Refereed essays Web of Science
This paper tests whether upstream R&D cooperation leads to downstream collusion. We show that a sufficient condition for identifying collusive behavior is a decline in the market share of RJV-participating firms. Using information from the U.S. National Cooperation Research Act, we estimate a market share equation correcting for the endogeneity of RJV participation and R&D expenditures. We find robust ...
In:
The Review of Economics and Statistics
96 (2014), 2, S. 349-370
| Tomaso Duso, Lars-Hendrik Röller, Jo Seldeslachts
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Refereed essays Web of Science
Research in social psychology has shown individual variation in the tendency to compare one's own opinions and abilities with those of other people, raising the question of whether social comparisons are psychological dispositions. To test the empirical validity of this proposition, Gibbons and Buunk (1999) created an instrument, the Iowa-Netherlands Comparison Orientation Measure (INCOM), that measures ...
In:
Social Indicators Research
115 (2014), 2, S. 767-789
| Simone M. Schneider, Jürgen Schupp
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Refereed essays Web of Science
We develop an index measuring the three main dimensions - prosecution, protection, and prevention - of the anti-trafficking policies of the governments of up to 180 countries over the 2000-2010 period. Overall, developed countries perform better than the rest of the world; compliance with prosecution policy is highest, while governmental efforts to protect victims of human trafficking remain weakest. ...
In:
The Scandinavian Journal of Economics
116 (2014), 2, S.429-454
| Seo-Young Cho, Axel Dreher, Eric Neumayer
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Refereed essays Web of Science
It is well-known that not all the variables affecting decisions in a discrete choice situation are objective characteristics of the alternatives. Some of them are associated with difficult to measure attributes which may be represented as latent variables. Since this type of variables cannot be directly observed by the analyst, they must be estimated through a special model (typically a MIMIC model), ...
In:
Transportmetrica A
10 (2014), No. 1, S. 74-88
| Francisco J. Bahamonde-Birke, Juan de Dios Ortúzar