Martin Kolk

Martin Kolk


Visa sidan på svenska
Works at Department of Sociology
Visiting address Universitetsvägen 10 B, plan 9
Room B 879
Postal address Sociologiska institutionen, Demografiska avdelningen 106 91 Stockholm

About me


I am a researcher and Docent (Associate Professor) at SUDA (Stockholm University Demography Unit), CEK (Center for the study of Cultural Evolution), and IF (Institute for Future Studies), working on various aspects of intergenerational demography and cultural evolution. My main topic is the demography of kinship in contemporary and historical populations. Currently I use linked register and parish data with micro level data to examine demographic change from the mid 18th century until today. I am also working with researchers at the program for historical demography at Academica Sinicia in Taipei, Taiwan.

My research interests are often related to intergenerational demographic processes, but I have written papers on many areas of demography, including fertility, mortality, migration, same-sex demography, household composition and union formation. I am also interested in cultural evolution, and in particular relationship between cultural evolution and demographic parameters.

Recent studies include; kinship and stratifcation, long term consequences of intergenerational transmission of fertility, age differences in unions, cohort approaches to migration, and influences of family composition in childhood on various demographic outcomes. 


My Google Scholar page is available here and my CV can be found to the right.

Most of my publications are available for everyone to download using this link.


Recent working papers:

Martin Kolk and Martin Hällsten (2016) “Demographic and educational success of descendants: A prospective analysis of number of great grandchildren and their education in 19th, 20th and 21st century northern Sweden” Stockholm Research Reports in Demography 2016:10.

Kathrin Morosow and Martin Kolk (2016) “How does Birth Order and Number of Siblings Effect Fertility? A Within-Family Comparison using Swedish Register Data” Stockholm Research Reports in Demography 2016:7.

Martin Kolk (2016) “Period and Cohort Measures of Migration” Stockholm Research Reports in Demography 2016:5.

Barclay, Kieron and Martin Kolk (2015) “Parity and Mortality: Evidence from Biological and Adoptive Parents” Stockholm Research Reports in Demography 2015:1.


Recent Publications:

Martin Kolk and Martin Hällsten (2017) “Demographic and educational success of descendants: A prospective analysis of number of great grandchildren and their education in 19th, 20th and 21st century northern Sweden” Population and development review, accepted for publication

Barclay, Kieron and Martin Kolk (2017) “The long-term cognitive and socioeconomic consequences of birth intervals: a within-family sibling comparison using Swedish register data” Demography54(2): 459-484

Kolk, Martin (2016) “A life course analysis of geographical distance to siblings, parents and grandparents in Sweden” Population, Space and Place, 23(3): e2020

Baranowska-Rataj, Anna, Kieron Barclay and Martin Kolk (2017) ”The Effect of the Number of Siblings on Adult Mortality: Evidence from Swedish Registers” Population studies, 68(1): 111-129

Chudnovskaya, Margarita, & Kolk, Martin (2017) “Educational expansion and intergenerational proximity in Sweden” Population, Space and Place, 23(1): e1973

Barclay, Kieron, Katherine Keenan, Emily Grundy, Martin Kolk and Mikko Myrskylä (2016). “Reproductive history and post-reproductive mortality: A sibling comparison analysis using Swedish register data” Social Science & Medicine, 155: 82-92

Kolk, Martin and Sebastian Schnettler (2016) “Socioeconomic status and sex ratios at birth in Sweden. No evidence for a Trivers-Willard effect for a wide range of status indicators” American Journal of Human Biology28(1): 67-73

Andersson, Gunnar and Martin Kolk (2015) ” Trends in childbearing, marriage and divorce in Sweden: An update with data up to 2012” Finnish Yearbook of Population Research50: 21-30

Kolk, Martin (2015) “Age differences in unions: Continuity and divergence in Sweden between 1932 and 2007” European Journal of Population, 31(4): 365-382

Kolk, Martin (2015) “The causal effect of an additional sibling on completed fertility – An estimation of intergenerational fertility correlations by looking at siblings of twins” Demographic Research 32: 1409-1420

Barclay, Kieron and Martin Kolk (2015) “Birth order and mortality: A population based cohort study” Demography, 52(2): 613-639

Kolk, Martin, Daniel Cownden and Magnus Enquist (2014) “Correlations in fertility across generations – can low fertility persist” Proceedings of the Royal Society B, 281(1779): 20132561

Kolk, Martin (2014) “Understanding transmission of fertility across multiple generations – Socialization or socioeconomics?” Research in Social Stratification and Mobility, 35:89-103

Kolk, Martin (2014) “Multigenerational transmission of family size in contemporary Sweden” Population Studies, 68(1): 111-129


counterDoctoral thesis:

Kolk, Martin (2014) Multigenerational processes in demography. Stockholm University: Stockholm.

Last updated: February 9, 2018

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