Co-authors
The people I have written with more than once, and what the joint work is about.
Niels Westergaard-Nielsen
11 papers, 1998–2013
Firms, wages and careers, using matched employer and worker records. Employer pay policies, the flows of workers and jobs between workplaces, the return to staying with one firm, and retirement decisions seen from the employer's side.
Nabanita Datta Gupta
11 papers, 2004–2026
Retirement and later life. The Danish analyses in the international social security collaboration, the capacity to work at older ages measured against mortality and self-reported health, and how pension reform falls on people who reach old age with different resources.
Lorenzo Cappellari
11 papers, 2013–2026
Earnings dynamics and the family. Sibling correlations and what passes from father to son, assortative mating between parents, the part of earnings inequality that belongs to firms rather than workers, and the two studies of what reaches a child through a parent: a job loss and a crime.
Peder J. Pedersen
9 papers, 2004–2021
Retirement incentives and labour force exit over four decades, including the reversal after 1999 that turned a falling retirement age into a rising one, and what successive reforms did to public finances.
Ian Walker
8 papers, 1994–2013
Taxes, transfers and the labour supply of lone mothers in Britain. In-work transfer programmes, the costs that keep eligible families from claiming, and what happened when an in-kind programme was partly cashed out.
Kaare Christensen
8 papers, 2006–2013
The Danish Twin Registry, which links twins to the population registers and to each other. Whether twins differ from singletons in schooling and in marriage, and what comparing twins with their own co-twin can settle about the effect of schooling that comparing strangers cannot.
Gauthier Lanot
6 papers, 1995–2026
The econometrics of taxation and labour supply. How much of an income tax rise reaches the worker once wages are allowed to adjust, and how much taxable income moves when rates change, measured across six Danish tax regimes and forty years.
Vibeke Myrup Jensen
4 papers, 2009–2026
School experiments. The early literacy trials, including the one across 81 schools that tested every child rather than only those tutored, and current work on what a school adds to a pupil over the long run.
Stéphanie Vincent Lyk-Jensen
4 papers, 2020–2024
The Danish draft lottery, and what can be learned from assigning military service at random: what a year of service costs in earnings, what it teaches in numeracy and literacy, and how conscripts compare with volunteers on deployment.
Konstantinos Tatsiramos
4 papers, 2021–2026
Where socioeconomic inequality comes from. Assortative mating and the education gradients it produces, and the twin-family work that tests the assumption the classic twin model rests on instead of taking it as given.
Malene Kallestrup-Lamb
4 papers, 2021–2026
Pensions and health in later life. Health inequalities among Danish retirees measured as years of ageing, and the distribution of what three decades of pension reform did to expected lifetime benefits.
Marco Ovidi
3 papers, 2025–2026
Shocks that arrive through a parent or an employer: the timing of a parental job loss in a child's schooling, crime against a parent, and what a workplace closure does to a worker in their late fifties.
Alessandro Tang-Andersen Martinello
2 papers, 2013–2017
What survey answers and register records disagree about. Measuring the error in reported income and schooling against the administrative record, and what it does to estimates built on either, including the claim that retiring hastens cognitive decline.
Alexander O.K. Marin
2 papers, 2026–2026
Pensions, health and the public finances of ageing. How three decades of Danish pension reform changed expected lifetime benefits across socioeconomic groups, and how the health of retirees at different incomes has moved since 2004.