You can find my work on Google Scholar, SSRN, or ORCID.

Publications in Peer-Reviewed Journals

  • Climate change literacy and migration potential: micro-level evidence from Africa (2021) Climatic Change, 9 (with Marc Helbling, Denial Meierrieks, Malcolm Mistry, Max Schaub).

    While a growing literature studies the effects of climate change on international migration, still only relatively little is known about the individual mechanisms linking migration decisions to climate change. We argue that climate change literacy (i.e., knowledge about climate change) is a major determinant of why some individuals consider migrating to other countries in response to climate change effects. In particular, climate change literacy helps individuals translate their perceptions of temperature changes into an understanding of these changes’ irreversible long-term consequences. We test this hypothesis using highly accurate geo-coded data for 37,000 individuals across 30 African countries. We show that climate change indeed leads to stronger migration intentions among climate literates only. Furthermore, we show that climate change only increases migration intentions among climate literates when it is approximated by long-run increases in local temperatures, but not when operationalized as changing heat wave or precipitation patterns. Further analyses show that climate literates are more likely to live in urban areas, have a higher news consumption, are highly educated, and have demanding occupations. Consequently, climate change may further deprive affected countries of valuable talent.

  • Merchants of Death: Arms Imports and Terrorism. (2021) European Economic Review, 137 (with Daniel Meierrieks).

    Do arms imports fuel terrorism? Despite the high human, economic and political toll associated with terrorism, the effect of a country’s arms trade on the propensity to experience terrorist attacks has received scant attention so far. We argue that arms imports affect a country’s institutional landscape, increasing grievances due to corruption, exclusion and human rights violations; these grievances, in turn, incite terrorism. We leverage plausibly exogenous variation in global arms trade patterns as an instrument to provide causal evidence of a significant positive effect of arms imports on terrorist activity for 179 countries between 1992 and 2018. We also show that arms imports indeed increase corruption and political exclusion, which may explain why arms imports ultimately encourage terrorist activity. Finally, the adverse effect of arms imports on terrorism is strongest among countries characterized by low levels of fiscal capacity and high levels of political inequality and authoritarianism.

  • Corruption and the Desire to Leave: Quasi-Experimental Evidence on Corruption as a Driver of Emigration Intentions (2020) IZA Journal of Development and Migration, 11(1) (with Friederike Römer, Jasper Tjaden).

    Whether and to what extent corruption drives emigration has received growing attention in the literature in recent years, yet the nature of the relationship remains unclear. To test causal claims, we rely on representative global survey data of more than 280,000 respondents across 67 countries from 2010 to 2014. We use two different measures of emigration intentions and individual, as well as country-level measures of corruption, and propose to instrument the endogenous presence of corruption in a country with the prevalence of cashless transactions in the economy to correct for potential estimation bias. We find robust support for the hypothesis that corruption increases emigration intentions across countries. The effect, however, is likely to be underestimated in conventional models that do not account for endogeneity. The results highlight the need to look beyond purely economic, social, security-related, and environmental drivers when assessing the root causes of migration.

  • Can signaling assimilation mitigate hiring discrimination? Evidence from a survey experiment (2019) Research in Social Stratification and Mobility (with Flavia Fossati, Fabienne Liechti).

    Using a survey experiment, we test whether discrimination against job candidates with a second-generation migration background varies by signaling either assimilation into the host society or attachment to the country of origin. In our study, Swiss HR managers evaluate descriptions of fictitious CVs in which we vary the origin, language proficiency, and extracurricular activity of the jobseekers with and without a cultural context. The findings reveal that candidates with Polish- or Turkish-sounding names are evaluated worse than candidates with Swiss- or Spanish-sounding names. The effect of signaling attachment to the native and host country culture depends on the perceived distance of the cultural background. A candidate with a Spanish-sounding name who speaks the native language and acts as a chairperson in a Spanish cultural association is granted a better evaluation by employers. Regarding the Polish applicants, neither signaling attachment to the country of origin nor assimilation to the Swiss background makes a significant difference. In contrast, regarding applicants with Turkish-sounding names, signaling assimilation improves employers’ evaluation of their profile, whereas signaling attachment to the Turkish culture either by an extra curricula activity or indicating proficiency in both the Swiss and Turkish languages leads to significantly worse evaluations. We conclude that especially for individuals stemming from origins that are perceived as culturally distant, signaling attachment to the culture of origin may result in a higher occurrence of discrimination, even when the signal indicates higher human- or social-capital of the jobseeker.

  • Compensation or Competition: Bias in Immigrants’ Access to Active Labour Market Measures (2019) Social Policy & Administration (with Flavia Fossati).

    Whether participation in active labour market programmes (ALMPs) pushes individuals back into employment depends on the programme’s characteristics. On the basis of encompassing registry data that allow us to control for usually unobserved employability, we find evidence of a systematic access bias whereby jobcentre caseworkers in Switzerland assign unemployed persons to activation measures based on a competition logic that is mainly driven by an economic rationale and the jobcentre’s performance evaluation. This practice seems problematic because it results in an overrepresentation of immigrants in measures with little efficacy rather than in measures that could compensate for employability disadvantages. Conversely, Swiss citizens are more likely to enter beneficial human-capital-intensive measures. It is plausible that this discrepancy in programme participation amplifies the general labour market disadvantages of immigrants.

  • Language Roulette – The Effect of Random Placement on Refugees’ Labour Market Integration (2018) Journal of Ethnic and Migration Studies, 44(3):341-362.

    Placement of refugees and subsequent labour market integration within a host country represents a key challenge for policymakers and has emerged as one of the most divisive topics in the public debate. Immigration policy in Switzerland adopts random placement of asylum seekers across its different language regions. Hence, this policy allows to estimate the causal effect of language skills on employment chances, as refugees are exogenously placed across regions where the spoken language could either match or deviate from individual language skills. The results of this ‘natural experiment’ indicate substantially higher probabilities of finding employment when asylum seekers are placed in regions with a lingua franca that matches their individual language skills. Additionally, the findings suggest that language course participation can offset the reduced likelihood of employment in cases of a language mismatch. While random placement of refugees may be desirable for political reasons, it is detrimental to the economic integration process. Thereby, the study draws relevant conclusions for a larger European immigration policy.

  • The Absent Rewards of Assimilation: How Ethnic Penalties Persist in the Swiss Labour Market (2018) The Journal of Economic Inequality (with Flavia Fossati).

    We analyse whether the origin of immigrants and/or their level of assimilation to the host country (birth and naturalisation) can explain labour market trajectories. Among the manifold domains in which individuals with a migration background may face disadvantages, we focus on labour market re-integration because it has been proven to be a key factor in fostering long-term social integration into the host country. Although empirical evidence for discriminatory practices by employers is generally difficult to provide with registry data, our design minimises potential alternative explanations. Our study benefits from a unique dataset combining registry and survey data, which were collected in the Swiss Canton of Vaud among all newly unemployed individuals between February and April 2012. The findings are based on real labour market behaviour and show that when controlling for encompassing information on human and social capital and other employability criteria, individuals whose provenance is from outside the European Union face periods of unemployment that are up to 50% (or 3 months) longer than those of Swiss natives. Surprisingly, observable assimilation proofs in the form of naturalisation or birth in the host country do not improve labour market re-integration. We explain this finding by employers’ discriminatory hiring behaviour.

  • Linking Migration Intentions with Flows: Evidence and Potential Use (2018) International Migration (with Jasper Tjaden, Frank Laczko).

    In the absence of reliable, internationally available migration flow data necessary for statistical forecasting, policymakers increasingly turn to survey data on emigration intentions to evaluate future migration trends. The important assumption – i.e. that there is a measurable and systematic relationship between the intention to migrate and actual migration – has not been firmly established at the international level. We examine the association between estimated population averages of emigration intentions and official migration flow data based on data for more than 160 countries. The results show a strong association between emigration intentions and recorded bilateral flows to industrialized countries, as well as between intentions and aggregated out-migration. The results provide policymakers with a reliability assessment of survey data on emigration intentions and encourage future attempts to incorporate survey data in formal statistical migration forecasting models.

  • The Matching Hierarchies Model: Evidence from a Survey Experiment on Employers’ Hiring Intent of Immigrant Applicants (2018) International Migration Review (with Giuliano Bonoli, Flavia Fossati, Fabienne Liechti).

    We seek to understand why immigrants encounter labor market integration difficulties and thus propose a model that combines ethnic and occupational rankings to predict which candidates employers will favor for particular occupations (a matching hierarchies model). In a Swiss survey experiment, we found that employers’ evaluations of non-natives follow sociocultural distance perceptions and that a non-native background is a disadvantage mainly in high-skilled occupations. In low-skilled occupations, having an immigrant background is less detrimental. In elucidating disadvantage patterns, we conclude that it is important to consider contextual factors (occupational hierarchies) that may change the nature of nationality-based discrimination.

  • The Signalling Value of Labor Market Programs (2017) European Sociological Review, 33(2): 257-274 (with Fabienne Liechti, Flavia Fossati, Giuliano Bonoli).

    This article investigates how employers interpret participation in labour market programmes when assessing job candidates. We hypothesize that employers use programme participation to sort applicants. On the basis of a factorial survey experiment, we simulated the recruitment process for two positions requiring different skills in the hotel sector. Recruiters were asked to evaluate fictitious candidates who differ in their participation in active labour market programmes. Our results show that employers take programme participation into account when assessing a candidate. Its impact can be positive or negative depending on the candidate’s distance from the labour market. Candidates more distant from the labour market are evaluated better if they have participated in a programme. For stronger candidates, instead, participation can act as a stigma and worsen the assessment made by the recruiter.

  • Why do immigrants have longer periods of unemployment? Swiss evidence (2017) International Migration, 55(1): 157-174 (with Giuliano Bonoli, Flavia Fossati).

    Immigrant groups, especially those originating from non-European countries, tend to experience disadvantages in the labour market and to be overrepresented among the recipients of welfare benefits in many European countries. In the public debate, this outcome is sometimes explained with reference to migration-related factors such as weaker work values than natives (i.e., acceptability of remaining on benefits), smaller and lower quality of informal networks and lower levels of psychological well-being. Indeed, we find that these factors significantly influence unemployment duration in the expected direction. However, they explain only a small share of the overall disadvantage that some immigrant groups experience. We conclude that at least some of the large differences we observed in unemployment durations are likely to be due to other factors including discrimination by employers.

Articles & Book Chapters

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