WorldCat Identities

Huber, Martin

Overview
Works: 50 works in 126 publications in 2 languages and 218 library holdings
Roles: Author, Thesis advisor, Editor, Contributor
Classifications: HC10, 362.10943
Publication Timeline
.
Most widely held works by Martin Huber
Does leaving welfare improve health? Evidence for Germany by Martin Huber( )

8 editions published in 2009 in English and held by 29 WorldCat member libraries worldwide

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 males and individuals with bad initial health conditions and are largest for males with poor health. In contrast, the effects of welfare-to-work programmes, including subsidized jobs, are ambiguous and statistically insignificant for most outcomes. Robustness checks that include a semi-parametric instrumental variable approach do not provide reasons for concern
Do German welfare to work programmes reduce welfare and increase work( )

9 editions published in 2009 in English and held by 26 WorldCat member libraries worldwide

Many Western economies have reformed their welfare systems with the aim of activating welfare recipients by increasing welfare-to-work programmes and job search enforcement. We evaluate the three most important German welfare-to-work programmes implemented after a major reform in January 2005 ("Hartz IV"). Our analysis is based on a unique combination of large scale survey and administrative data that is unusually rich with respect to individual, household, agency level, and regional information. We use this richness to allow for a selection-on-observables approach when doing the econometric evaluation. We find that short-term training programmes on average increase their participants' employment perspectives and that all programmes induce further programme participation. We also show that there is considerable effect heterogeneity across different subgroups of participants that could be exploited to improve the allocation of welfare recipients to the specific programmes and thus increase overall programme effectiveness. -- Welfare-to-work policies ; propensity score matching ; programme evaluation ; panel data ; targeting
The effect of firm's partial retirement policies on the labour market outcomes of their employees by Martin Huber( Book )

15 editions published between 2013 and 2014 in English and held by 22 WorldCat member libraries worldwide

In this paper, we assess the impact of firms introducing part-time work schemes for gradual labour market exit of elderly workers on their employees' labour market outcomes. The analysis is based on unique linked employer-employee data that combine high-quality survey and administrative data. Our results suggest that partial or gradual retirement options offered by firms are an important tool to alleviate the negative effects of low labour market attachment of elderly workers in ageing societies. When combined with financial incentives to hire unemployed or young jobseekers as replacement, they seem to be particularly beneficial, especially when labour market conditions are difficult. Under such circumstances, they can even have positive spill-over effects on younger workers. Firms should thus be encouraged to offer such schemes
How to Control for Many Covariates? Reliable Estimators Based on the Propensity Score by Martin Huber( )

4 editions published in 2010 in English and German and held by 19 WorldCat member libraries worldwide

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 observable 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 of labour market programmes in Germany. We vary several dimensions of the design that are of practical importance, like sample size, the type of the outcome variable, and aspects of the selection process. We find that trimming individual observations with too much weight as well as the choice of tuning parameters is important for all estimators. The key conclusion from our simulations is that a particular radius matching estimator combined with regression performs best overall, in particular when robustness to misspecifications of the propensity score is considered an important property. -- propensity score matching ; kernel matching ; inverse probability weighting ; selection on observables ; empirical Monte Carlo study ; finite sample properties
Workplace health promotion and labour market performance of employees by Martin Huber( Book )

8 editions published in 2014 in English and held by 9 WorldCat member libraries worldwide

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 propensity score matching approach that controls for selection on observables as well as on time-constant unobserved factors. While the effects of analysing sickness absenteeism appear to be rather limited, our results suggest that health circles/courses increase tenure and decrease the number of job changes across various age groups. A key finding is that health circles/courses strengthen the labour force attachment of elderly employees (51-60), implying potential cost savings for public transfer schemes such as unemployment or early retirement benefits
Direct and indirect effects of training vouchers for the unemployed by Martin Huber( Book )

6 editions published in 2015 in English and held by 5 WorldCat member libraries worldwide

This paper evaluates the effect of a voucher award system for assignment into vocational training on the employment outcomes of unemployed voucher recipients in Germany, along with the causal mechanisms through which it operates. It assesses the direct effect of voucher assignment net of actual redemption, which may be driven by preference shaping/learning about (possibilities of) human capital investments or simply by costs of information gathering. Using a mediation analysis framework based on sequential conditional independence assumptions and semiparametric matching estimators, our results suggest that the negative short term and positive long term employment effects of voucher award are mainly driven by actual training participation. However, also the direct effect of just obtaining the voucher is negative in the short run. This points to potential efficiency losses of voucher award systems if individuals decide not to redeem, as employment chances are lower than under non-award in the short run and under redemption in the long run, making non-redemption the least attractive option
Direct and indirect effects based on difference-in-differences with an application to political preferences following the Vietnam draft lottery by Eva Deuchert( )

2 editions published in 2016 in English and held by 4 WorldCat member libraries worldwide

This paper proposes a difference-in-differences approach for disentangling a total treatment effect on some outcome into a direct impact as well as an indirect effect operating through a binary intermediate variable - or mediator - within strata defined upon how the mediator reacts to the treatment. We show under which assumptions the direct effects on the always and never takers, whose mediator is not affected by the treatment, as well as the direct and indirect effects on the compliers, whose mediator reacts to the treatment, are identified. We provide an empirical application based on the Vietnam draft lottery. The results suggest that a high draft risk due to the lottery leads to a relative increase in the support for the Republican Party and that this increase is mostly driven by those complying with the lottery outcome
A cautionary tale about control variables in IV estimation by Eva Deuchert( Book )

3 editions published in 2014 in English and held by 4 WorldCat member libraries worldwide

Identifying causal mechanisms in experiments (primarily) based on inverse probability weighting by Martin Huber( Book )

2 editions published in 2012 in English and held by 3 WorldCat member libraries worldwide

Why do tougher caseworkers increase employment? the role of programme assignment as a causal mechanism by Martin Huber( Book )

2 editions published in 2014 in English and held by 3 WorldCat member libraries worldwide

Relaxing monotonicity in the identification of local average treatment effects by Martin Huber( Book )

2 editions published in 2012 in English and held by 3 WorldCat member libraries worldwide

Treatment evaluation in the presence of sample selection by Martin Huber( Book )

2 editions published in 2009 in English and held by 3 WorldCat member libraries worldwide

Direct and indirect treatment effects causal chains and mediation analysis with instrumental variables by Markus Frölich( )

3 editions published between 2014 and 2015 in English and held by 3 WorldCat member libraries worldwide

This paper discusses the nonparametric identification of causal direct and indirect effects of a binary treatment based on instrumental variables. We identify the indirect effect, which operates through a mediator (i.e. intermediate variable) that is situated on the causal path between the treatment and the outcome, as well as the unmediated direct effect of the treatment using distinct instruments for the endogenous treatment and the endogenous mediator. We examine different settings to obtain nonparametric identification of (natural) direct and indirect as well as controlled direct effects for continuous and discrete mediators and continuous and discrete instruments. We illustrate our approach in two applications: to disentangle the effects (i) of education on health, which may be mediated by income, and (ii) of the Job Corps training program, which may affect earnings indirectly via working longer hours and directly via higher wages per hour
Regional differences in perceived corruption among Ukrainian firms by Elena Denisova-Schmidt( Book )

2 editions published in 2014 in English and held by 3 WorldCat member libraries worldwide

Microeconometric estimators and tests based on nonparametric methods, quantile regression, and resampling by Martin Huber( )

3 editions published in 2010 in English and held by 3 WorldCat member libraries worldwide

The finite sample performance of estimators for mediation analysis under sequential conditional independence by Martin Huber( Book )

3 editions published in 2014 in English and held by 3 WorldCat member libraries worldwide

Quantile regression in the presence of sample selection by Martin Huber( Book )

3 editions published in 2011 in English and held by 3 WorldCat member libraries worldwide

Most sample selection models assume that the errors are independent of the regressors. Under this assumption, all quantile and mean functions are parallel, which implies that quantile estimators cannot reveal any (per definition non-existing) heterogeneity. However, quantile estimators are useful for testing the independence assumption, because they are consistent under the null hypothesis. We propose tests for this crucial restriction that are based on the entire conditional quantile regression process after correcting for sample selection bias. Monte Carlo simulations demonstrate that they are powerful and two empirical illustrations indicate that violations of this assumption are likely to be ubiquitous inlabor economics. Keywords: Sample selection, quantile regression, independence, test
Statistical verification of a natural "natural experiment" tests and sensitivity checks for the sibling sex ratio instrument by Martin Huber( Book )

2 editions published in 2012 in English and held by 3 WorldCat member libraries worldwide

Radius matching on the propensity score with bias adjustment finite sample behaviour, tuning parameters and software implementation by Martin Huber( Book )

2 editions published in 2012 in English and held by 3 WorldCat member libraries worldwide

The finite sample performance of semi- and nonparametric estimators for treatment effects and policy evaluation by Markus Frölich( )

3 editions published in 2015 in English and held by 2 WorldCat member libraries worldwide

This paper investigates the finite sample performance of a comprehensive set of semi- and nonparametric estimators for treatment and policy evaluation. In contrast to previous simulation studies which mostly considered semiparametric approaches relying on parametric propensity score estimation, we also consider more flexible approaches based on semi- or nonparametric propensity scores, nonparametric regression, and direct covariate matching. In addition to (pair, radius, and kernel) matching, inverse probability weighting, regression, and doubly robust estimation, our studies also cover recently proposed estimators such as genetic matching, entropy balancing, and empirical likelihood estimation. We vary a range of features (sample size, selection into treatment, effect heterogeneity, and correct/misspecification) in our simulations and find that several nonparametric estimators by and large outperform commonly used treatment estimators using a parametric propensity score. Nonparametric regression, nonparametric doubly robust estimation, nonparametric IPW, and one-to-many covariate matching perform best
 
moreShow More Titles
fewerShow Fewer Titles
Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.93 (from 0.90 for Does leavi ... to 0.98 for Direct and ...)

Alternative Names
Huber, M. 1980-

Languages
English (83)

German (1)