Joltreau, Eugénie and Katrin Sommerfeld (2019), Why does emissions trading under the EU Emissions Trading System (ETS) not affect firms’ competitiveness? Empirical findings from the literature, Climate Policy 19(4), 453-471.

Tovar Reaños, Miguel Angel and Katrin Sommerfeld (2017), Fuel for inequality: Distributional effects of environmental reforms on private transport, Resource and Energy Economics 51, 28-43.

Fitzenberger, Bernd and Katrin Sommerfeld (2016), A Sequential Decomposition of the Drop in Collective Bargaining Coverage, Journal of Economics and Statistics (Jahrbücher für Nationalökonomie und Statistik).

Sommerfeld, Katrin (2013), Higher and higher? Performance pay and wage inequality in Germany, Applied Economics 45 (30), 4236-4247.

Antonczyk, Dirk, Bernd Fitzenberger and Dr. Katrin Sommerfeld (2011), Anstieg der Lohnungleichheit, Rückgang der Tarifbindung und Polarisierung, Zeitschrift für Arbeitsmarktforschung 44 (1-2), 15-27.

Sommerfeld, Katrin (2009), Older Babies - More Active Mothers? How Maternal Labor Supply Changes as the Child Grows, Schmollers Jahrbuch - Journal of Applied Social Science Studies 129 (2), 227-240.

Barreto, César, Paul Berbée, Katia Gallegos Torres, Martin Lange and Dr. Katrin Sommerfeld (2022), The Civic Engagement and Social Integration of Refugees in Germany, Nonprofit Policy Forum .

Höfling, Holger, Peter Heindl, Daniel Osberghaus and Dr. Katrin Sommerfeld (2016), Auch nach dem Paris-Abkommen ist Klimaschutz kein Selbstläufer, Energiewirtschaftliche Tagesfragen 12 , 68-70.

Pittel, Karen, Klaus Rennings, Dr. Katrin Sommerfeld and Johann Wackerbauer (2016), Klimaverträglichkeit und Wettbewerbsfähigkeit in Einklang bringen – Ergebnisse und Lösungsansätze aus der Klimaökonomie, ifo Schnelldienst 69 (01) , 16-20.

Lange, Martin and Katrin Sommerfeld (2023), Do Refugees Impact Crime? Causal Evidence From Large-Scale Refugee Immigration to Germany, ZEW Discussion Paper No. 23-047, Mannheim , published in : Labour Economics

Sommerfeld, Katrin (2023), Tailoring Migration Policies to Address Labour Shortages, ZEW policy brief No. 23-05, Mannheim

Berbée, Paul, Herbert Brücker, Alfred Garloff and Dr. Katrin Sommerfeld (2023), Aufnahme von Geflüchteten schafft neue Jobs, ZEW policy brief No. 23-03, Mannheim

Berbée, Paul, Herbert Brücker, Alfred Garloff and Dr. Katrin Sommerfeld (2022), The Labor Demand Effects of Refugee Immigration: Evidence From a Natural Experiment, ZEW Discussion Paper No. 22-069, Mannheim

Gallegos Torres, Katia, Dr. Katrin Sommerfeld and Julia Bartel (2022), 18 Jahre EU-Osterweiterung: Wo Osteuropäer/innen in Deutschland arbeiten, ZEW expert brief No. 22-03, Mannheim

Gallegos Torres, Katia and Katrin Sommerfeld (2022), Regionale Verteilung russischer Communities in Deutschland, ZEW expert brief No. 22-02, Mannheim

Berbée, Paul, Katia Gallegos Torres, César Barreto, Martin Lange and Dr. Katrin Sommerfeld (2021), Wir schaffen das! Zivilgesellschaftliches Engagement und die soziale Integration von Geflüchteten, Eine empirische Analyse für die Jahre 2016 bis 2019, ZEW expert brief No. 21-11, Mannheim

Bahn, Mareike, Anne Berkemeier, Petra Deger, Havva Engin, Adalbert Evers, Rebecca Höhr, Oksana Kovtun-Hensel, Svenja Kück, Martin Lange, Georg Mildenberger, Friedhelm Pfeiffer, Verena Schmid, Dr. Katrin Sommerfeld, Corinna Uebel, Birgit Werner and Christina West (2019), Reallabor Asylsuchende in der Rhein-Neckar-Region: Vielfalt an Problemen - Vielfalt an Lösungen, ZEW policy brief No. 19-04, Mannheim

Deger, Petra, Martin Lange, Friedhelm Pfeiffer, Dr. Katrin Sommerfeld and Corinna Uebel (2018), Arbeitsmarktintegration von Geflüchteten – eine Herausforderung vor Ort, ZEW policy brief No. 18-08, Mannheim

Sommerfeld, Katrin and Eugénie Joltreau (2017), Why Does Emissions Trading under the EU ETS Not Affect Firms’ Competitiveness? Empirical Findings from the Literature, IZA Discussion Papers , Bonn.

Lutz, Benjamin Johannes, Philipp Massier, Dr. Katrin Sommerfeld and Andreas Löschel (2017), Drivers of Energy Efficiency in German Manufacturing: A Firm-level Stochastic Frontier Analysis, ZEW Discussion Paper No. 17-068, Mannheim

Lutz, Benjamin Johannes, Philipp Massier, Dr. Katrin Sommerfeld and Andreas Löschel (2017), Drivers of Energy Efficiency in German Manufacturing: A Firm-level Stochastic Frontier Analysis, CAWM Discussion Papers , Münster.

Tovar Reaños, Miguel Angel and Katrin Sommerfeld (2016), Fuel for Inequality: Distributional Effects of Environmental Reforms on Private Transport, ZEW Discussion Paper No. 16-090, Mannheim

Joltreau, Eugénie and Katrin Sommerfeld (2016), Why Does Emissions Trading Under the EU ETS not Affect Firms’ Competitiveness? Empirical Findings from the Literature, ZEW Discussion Paper No. 16-062, Mannheim

Fitzenberger, Bernd and Katrin Sommerfeld (2015), A Sequential Decomposition of the Drop in Collective Bargaining Coverage, ZEW Discussion Paper No. 15-039, Mannheim

Lange, Martin, Sarah McNamara, Philipp Schmidt, César Barreto, Dr. Katrin Sommerfeld and Martin Streng (2024), Migration and Integration in European Labour Markets, Europäische Kommission (Horizon 2020), Mannheim

Bahn, Mareike, Anne Berkemeier, Petra Deger, Havva Engin, Adalbert Evers, Rebecca Höhr, Oksana Kovtun-Hensel, Svenja Kück, Martin Lange, Georg Mildenberger, Friedhelm Pfeiffer, Verena Schmid, Dr. Katrin Sommerfeld, Corinna Uebel and Christina West (2019), Reallabor Asylsuchende in der Rhein-Neckar-Region 2016-2019 - Analysen und Handlungsempfehlungen, Reallabor Asylsuchende in der Rhein-Neckar-Region, Heidelberg und Mannheim

Lange, Martin, Friedhelm Pfeiffer, Aaron Scherf and Dr. Katrin Sommerfeld (2019), Integrationsfortschritte: Ergebnisse der zweiten Reallabor-Befragung von Asylsuchenden, Reallabor Asylsuchende in der Rhein-Neckar-Region, Mannheim

Deger, Petra, Monika Gonser, Michael Kolb, Svenja Kück, Martin Lange, Georg Mildenberger, Friedhelm Pfeiffer, Dr. Katrin Sommerfeld and Christina West (2017), Integrationspotenziale: Ausgewählte Ergebnisse der Reallabor-Befragungen unter Geflüchteten, Reallabor Asylsuchende in der Rhein-Neckar-Region, Mannheim

Osberghaus, Daniel, Peter Heindl, Dr. Katrin Sommerfeld and Holger Höfling (2016), KfW/ZEW CO2 Barometer 2016 – Carbon Edition: How the EU ETS can contribute to meeting the ambitious targets of the Paris Agreement, KfW Bankengruppe, Frankfurt am Main

Sommerfeld, Katrin, Klaus Rennings and Jens Horbach (2015), Circular Economy and Employment, Mannheim

2021: The Labor Demand Effects of Refugee Immigration: Evidence from a Natural Experiment, 6th international conference of the DFG Priority Program 1764, ZEW Mannheim, virtuell (Zoom), Germany

2021: The Labor Demand Effects of Refugee Immigration: Evidence from a Natural Experiment, Urban Economics Association European Meeting, Copenhagen, ONLINE, Denmark more information

2019: Causal Effects of Immigration on Crime: Quasi-Experimental Evidence from a Large Inflow of Asylum Seekers, Invited talk, Stanford University, United States of America more information

2019: Regional effects of a large inflow of asylum seekers on employment of locals, Labor Lunch, University of California, Santa Barbara, United States of America

2018: Causal Effects of Immigration on Crime: Quasi-Experimental Evidence from a Large Inflow of Asylum Seekers, 17th IZA/SOLE Transatlantic Meeting of Labor Economists (TAM), Buch/ Ammersee, Germany more information

2015: Size Does Matter: Firm Size Effects from Environmental Regulation on Employment using Quantile Regression, 3rd IZA Workshop: Labor Market Effects of Environmental Policies, Berlin, Germany more information

04.2020: Zeitschrift "Journal of Economic Geography"

08.2017: Zeitschrift "Journal of Labor Economics"

01. – 02.2019 University of California, Santa Barbara, United States of America

04. – 04.2016 Institute for Employment Research (IAB), Nürnberg, Germany

2016 - until now: Research Associate, Forschungsinstitut zur Zukunft der Arbeit (IZA), Bonn, Germany

Symposium, Paris, France, 2015 more information