Sam Cosaert

Welcome! I am a Researcher at the Luxembourg Institute of Socio-Economic Research (LISER).

I work on Microeconomics. My research brings theories of individual and household demand and labour supply to the data, by using revealed preference methods. I am also the principal investigator of <Timing: theoretical, empirical and experimental investigation of household time choices> (Luxembourg National Research Fund) jointly with Alexandros Theloudis.

I obtained my PhD in Economics at the University of Leuven in June 2015, under the supervision of Prof. Laurens Cherchye (advisor) and Prof. Thomas Demuynck (co-advisor).

E-mail: sam "dot" cosaert "at" liser "dot" lu

Current research

Togetherness in the Household (with Alexandros Theloudis and Bertrand Verheyden)

Winner of the 2019 Prize in memory of Maria Concetta Chiuri, awarded by the Società Italiana di Economia Pubblica.

Spending time together with a spouse is a major gain from marriage. We extend the classical collective model of the household to allow for togetherness between spouses. Togetherness takes the form of joint leisure and joint care for children. Using revealed preferences conditions and Dutch data over years 2009-12, we find that households are willing to pay 1.2 euros per hour -10% of the average wage- to convert private leisure to joint, and 2.1 euros per hour to convert private childcare to joint. Our results suggest togetherness is an important component of household time use despite being overlooked in the economics literature.

Parental childcare with process benefits (with Veerle Hennebel)

How large are non-budget-constraint effects of monetary incentives on overtime work in the lab? (with Mathieu Lefebvre and Ludivine Martin)

Intertemporal consumption with anticipating, remembering and experiencing selves (with Tom Potoms)


International journals

8. Verbal aptitude hurts children’s economic decision making accuracy (forthcoming), Journal of Behavioral Decision Making. (with Sabrina Bruyneel, Laurens Cherchye, Bram De Rock and Siegfried Dewitte)

7. Group consumption with caring individuals (2020), Economic Journal, Vol. 130, 587–622. (with Laurens Cherchye, Thomas Demuynck and Bram De Rock)

6. What types are there? (2019), Computational Economics, Vol. 53, 533-554.

5. Individual welfare analysis for collective households (2018), Journal of Public Economics, Vol. 166, 98-114. (with Laurens Cherchye, Bram De Rock, Pieter Jan Kerstens and Frederic Vermeulen)

4. Revealed preferences for diamond goods (2018), American Economic Journal: Microeconomics, Vol. 10, pp. 83-117.

3. Nonparametric welfare and demand analysis with unobserved individual heterogeneity (2018), Review of Economics and Statistics, Vol. 100, pp. 349-361. (with Thomas Demuynck)

2. Measuring the willingness-to-pay for others' consumption: an application to joint decisions of children (2017), Quantitative Economics, Vol. 8, pp. 1037-1082. (with Sabrina Bruyneel, Laurens Cherchye, Bram De Rock and Siegfried Dewitte)

1. Revealed preference theory for finite choice sets (2015), Economic Theory, Vol. 59, pp. 169-200. (with Thomas Demuynck)

Other journals

1. Store environment and advertising: investigating two manipulative forces from the supermarket (2010), Review of Business and Economics, Vol. 55, pp. 90-107. (with Joeri Clochet, Laurens Cherchye and Bram De Rock)


Some proof of the Cosaert family passion for hiking trails: click here.