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Université de Fribourg

Do German Welfare-to-Work Programmes Reduce Welfare Dependency and Increase Employment?

Huber, Martin ; Lechner, Michael ; Wunsch, Conny ; Walter, Thomas

In: German economic review, 2011, vol. 12, no. 2, p. 182-204

During the last decade, many Western economies reformed their welfare systems with the aim of activating welfare recipients by increasing welfare-to-work programmes (WTWP) and job-search enforcement. We evaluate the short-term effects of three important German WTWP implemented after a major reform in January 2005 (‘Hartz IV’), namely short training, further training with a planned...

Université de Fribourg

Does leaving welfare improve health? Evidence for Germany

Huber, Martin ; Lechner, Michael ; Wunsch, Conny

In: Health economics, 2011, vol. 20, no. 4, p. 484-504

Using exceptionally rich linked administrative and survey information on German welfare recipients we investigate the health effects of transitions from welfare to employment and of assignments to welfare-to-work programmes. Applying semi- parametric propensity score matching estimators we find that employment substantially increases (mental) health. The positive effects are mainly driven by ...

Université de Fribourg

Does preschool boost the development of minority children? : The case of Roma children

Felfe, Christina ; Huber, Martin

In: Journal of the Royal Statistical Society: Series A (Statistics in Society), 2016, vol. 180, no. 2, p. 475-502

Does universal preschool constitute an effective policy tool to promote the development and integration of children from minority groups? We address this question for the children of the Roma –the largest and most disadvantaged minority group in Europe. To tackle the issue of non-random selection into preschool, we exploit variation in the individual distance to the nearest preschool...

Université de Fribourg

On the Development of Students’ Attitudes towards Corruption and Cheating in Russian Universities

Denisova-Schmidt, Elena ; Huber, Martin ; Leontyeva, Elvira

In: European Journal of Higher Education, 2016, vol. 6, no. 2, p. 128-143

Based on empirical data from selected public universities in Khabarovsk, Russia, this paper compares first and fifth year students regarding their attitudes towards corruption in general and university corruption in particular. Even after making both groups of students comparable with respect to a range of socio-economic characteristics by a matching approach, the results suggest that fifth...

Université de Fribourg

Sharp IV bounds on average treatment effects on the treated and other populations under endogeneity and noncompliance

Huber, Martin ; Laffers, Lukas ; Mellace, Giovanni

In: Journal of Applied Econometrics, 2015, vol. 32, no. 1, p. 56-79

In the presence of an endogenous binary treatment and a valid binary instru- ment, causal effects are point identified only for the subpopulation of compliers, given that the treatment is monotone in the instrument. With the exception of the entire population, causal inference for further subpopulations has been widely ignored in econometrics. We invoke treatment monotonicity and/or dominance...

Université de Fribourg

Testing instrument validity for LATE identification based on inequality moment constraints

Huber, Martin ; Mellace, Giovanni

In: Review of economics and statistics, 2015, vol. 97, no. 2, p. 398-411

We derive testable implications of instrument validity in just identified treat- ment effect models with endogeneity and consider several tests. The identifying assump- tions of the local average treatment effect allow us to both point identify and bound the mean potential outcomes (i) of the always takers under treatment and (ii) of the never takers under non-treatment. The point identified...

Université de Fribourg

Testing the validity of the sibling sex ratio instrument

Huber, Martin

In: Labour, 2015, vol. 29, no. 1, p. 1-14

We test the validity of the sibling sex ratio instrument in Angrist and Evans (1998) using the methods proposed by Kitagawa (2008) and Huber and Mellace (2014). The sex ratio of the first two siblings is arguably randomly assigned and influences the probability of having a third child, which makes it a candidate instrument for fertility when estimating the effect of fertility on female labor...

Université de Fribourg

The Effect of Firms' Phased Retirement Policies on the Labor Market Outcomes of Their Employees

Huber, Martin ; Lechner, Michael ; Wunsch, Conny

In: ILR review, 2016, vol. 69, no. 5, p. 1216-1248

In this article, the authors assess the impact of firms’ offering a special form of phased retirement on their male employees’ labor market outcomes. The program aims at smoothing the transition from work to retirement and at decreasing costs in the public pension and unemployment insurance schemes through an increase in employment of elderly workers who otherwise would have exited...

Université de Fribourg

The performance of estimators based on the propensity score

Huber, Martin ; Lechner, Michael ; Wunsch, Conny

In: Journal of econometrics, 2013, vol. 175, no. 1, p. 1-21

We investigate the finite sample properties of a large number of estimators for the average treatment effect on the treated that are suitable when adjustment for observed covariates is required, like inverse probability weighting, kernel and other variants of matching, as well as different parametric models. The simulation design used is based on real data usually employed for the evaluation...

Université de Fribourg

Workplace health promotion and labour market performance of employees

Huber, Martin ; Lechner, Michael ; Wunsch, Conny

In: Journal of health economics, 2015, vol. 43, p. 170-189

This paper investigates the average effects of (firm-provided) workplace health promotion measures in form of the analysis of sickness absenteeism and health circles/courses on labour market out- comes of the firms’ employees. Exploiting linked employer-employee panel data that consist of rich survey- based and administrative information on firms, workers and regions, we apply a flexible...