Mathias Fjællegaard Jensen

Mathias Fjællegaard Jensen

Senior Research Fellow

Department of Economics

University of Oxford


I am a Senior Research Fellow at the Department of Economics, University of Oxford, and a Non-Stipendiary Research Fellow at Nuffield College. I am also a Research Affiliate at IZA. My research agenda centers on inequalities in the labour market.

Currently, I study labour market inequalities from three distinct perspectives. First, I am interested in the roles of gender and family dynamics in the labour market. Leveraging a unique combination of Danish job vacancy data and matched employer-employee register data, I explore how job characteristics and their returns (in terms of wages) depend on the gender of the worker. Second, I explore the economic effects of parental death on children. In different projects, we investigate how the impact of parental death evolves over the life cycle and the mechanisms at play during different life stages. Third, I study the outcomes of children of immigrants relative to the children of locals. Utilising detailed Danish administrative data, our projects assess differences in outcomes and in levels of intergenerational mobility.

With these research projects, I aim to contribute to a nuanced understanding of labour market dynamics, earnings disparities, familial influences, and the socio-economic trajectories of diverse populations.


  • Labour Economics
  • Gender & Family Economics
  • Applied Microeconometrics


  • PhD in Economics, 2021

    Copenhagen Business School

  • MSc in Business Administration & Philosophy, 2018

    Copenhagen Business School

  • MPhil in Multi-Disciplinary Gender Studies, 2016

    University of Cambridge

  • BA (Hons.) in Economics, 2015

    University of Cambridge


Working Papers

Work in Progress

Birth Timing & Spacing by Skill: Implications for Estimating Child Penalties

With Abi Adams-Prassl & Barbara Petrongolo

Skill demand versus skill use: Comparing job posts with individual skill use on the job

With Moira Daly & Fane Groes

Digital Skill Adoption and Employment Dynamics: Evidence from Matched Vacancy-Employer-Employee Data

With Cédric Schneider