Publications

Risky journeys – Risk and decision-making among potential irregular migrants in Senegal and Guinea
This study contributes an empirical account based on two independently collected surveys in Senegal and Guinea. Consistent with …
Jasper Dag Tjaden
PDF DOI
Experimental evidence on improving COVID-19 vaccine outreach among migrant communities on social media
Studies from several countries suggest that COVID-19 vaccination rates are lower among migrants compared to the general population. …
Jasper Dag Tjaden, Esther Haarmann, Nicolai Savaskan
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Effectiveness of WhatsApp for Measuring Migration in Follow-Up Phone Surveys. Lessons from a Mode Experiment in Two Low-Income Countries during COVID Contact Restrictions
Phone surveys have increasingly become important data collection tools in developing countries, particularly in the context of sudden …
Felix Ndashimye, Oumarou Hebie, Jasper Dag Tjaden
PDF DOI
Raising Awareness About the Risk of Irregular Migration: Quasi-Experimental Evidence from Guinea
In response to mounting evidence of harm inflicted on irregular migrants along their journeys from West Africa to Europe, international …
Jasper Dag Tjaden, Horace Gninafon
PDF DOI
The effect of peer-to-peer risk information on potential migrants - Evidence from a randomized controlled trial in Senegal
In response to mounting evidence on the dangers of irregular migration from Africa to Europe, the number of information campaigns which …
Jasper Dag Tjaden, Felipe Dunsch
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Measuring migration 2.0: a review of digital data sources
In response to mounting evidence on the dangers of irregular migration from Africa to Europe, the number of information campaigns which …
Jasper Dag Tjaden
PDF DOI
Corruption and the Desire to Leave Quasi-Experimental Evidence on Corruption as a Driver of Emigration Intentions
Whether and to what extent corruption drives emigration has received growing attention in the literature in recent years, yet the …
Daniel Auer, Friederike Römer, Jasper Dag Tjaden
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Linking Migration Intentions with Flows: Evidence and Potential Use
In the absence of reliable, internationally available migration flow data necessary for statistical forecasting, policymakers …
Jasper Dag Tjaden, Daniel Auer, Frank Laczko
DOI
Ride with Me—Ethnic Discrimination, Social Markets, and the Sharing Economy
We study ethnic discrimination in the sharing economy using the example of online carpooling marketplaces. Based on a unique data set …
Jasper Dag Tjaden, Carsten Schwemmer, Menusch Khadjavi
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The optimism trap: Migrants’ educational choices in stratified education systems
Immigrant children’s ambitious educational choices have often been linked to their families’ high level of optimism and …
Jasper Dag Tjaden, Christian Hunkler
DOI
Migrant Background and Access to Vocational Education in Germany: Self-Selection, Discrimination, or Both?
Germany’s Vocational Education and Training (VET) sector is the major channel for the integration of a growing number of students …
Jasper Dag Tjaden
DOI
Setting the bar - An experimental investigation of immigration requirements
We examine determinants of immigration requirements in a public goods game experiment with endogenous groups. Initially, the game …
Menusch Khadjavi, Jasper Dag Tjaden
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