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Posts by Ulysse Lojkine

Où, dans quel texte ?

1 day ago 0 0 1 0

Où Carl Schmitt a-t-il défendu l'égalitarisme ?

1 day ago 4 0 1 0

- So? Second goodies?
- github.com/oliviergodec...
- What’s that?
- A staggered event study DiD R package.
- Again?!
- Yep—last event in a series of staggered DiD solutions.
- Explain?
- Unroll the thread…

1 week ago 7 3 1 0
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Cutting hours through outsourcing - WID - World Inequality Database Cutting hours through outsourcing Olivier Godechot and Ulysse Lojkine study the effects of on-site outsourcing of low-skilled service jobs (cleaning, catering, security) in France.

Outsourced workers in low-skilled service jobs (cleaning, catering, security) in 🇫🇷 face a substantial earnings penalty—about 10 log points—persisting for up to 7 years after outsourcing, find @ulojkine.bsky.social & @oliviergodechot.bsky.social in new study.

More findings▶️ wid.world/news-article...

1 week ago 21 6 0 1

Beyond the content on outsourcing, there are two additional goodies of potential interest for many social scientists.
Here's the first for CASD fans (as us) : we improved the Babet-Godechot-Palladino chaining of the French BTS (a.k.a. DADS).

1 week ago 11 2 2 0

It is usual to use log earnings, and the additional reason here is that taking logs allows for the nice additive decomposition:
Effect on log earnings = effect on log hourly wage + effect on days + effect on hours per day

1 week ago 2 0 0 0

Any feedback welcome, cc @annastansbury.bsky.social @arindube.bsky.social @imarinescu.bsky.social @cyprienbatut.bsky.social @michaelzemmour.cpesr.fr and all the labour economists around!

1 week ago 4 0 1 0
Cutting hours through outsourcing - WID - World Inequality Database Cutting hours through outsourcing Olivier Godechot and Ulysse Lojkine study the effects of on-site outsourcing of low-skilled service jobs (cleaning, catering, security) in France.

and a decrease in quality (e.g. a shift from fresh to frozen food in catering). Read the paper here for more: wid.world/news-article... including more acknoweldgements and discussion of the previous literature on which we build a lot!

1 week ago 2 0 1 0

Interviews conducted with stakeholders of these industries indicate that cutting the hours on a given site is a common way to compete on prices for subcontractor firms, with the decline in hours leading to both work intensification (more rooms to clean per hour, etc.) for the remaining workers...

1 week ago 3 0 1 0
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effect on earnings by sex

effect on earnings by sex

Both the effects on employment and on earnings are stronger for women and migrants, sometimes strikingly so.

1 week ago 2 0 1 0
Effect on employment and unemployment benefits

Effect on employment and unemployment benefits

We also find a negative effect on employment (as proxied by the presence in the panel) and a positive effect on the probability of receiving unemployment benefits

1 week ago 2 0 1 0
effect of the outsourcing event on earnings and its components

effect of the outsourcing event on earnings and its components

We find an important and persistent penalty in earnings for outsourced workers (around 10 log points). Remarkably, that penalty is driven by days worked per year and hours per week, with at most a modest role for the hourly wage

1 week ago 4 0 1 0

To understand this fact, we turn to a panel of matched employer-employee admin data, identifying transfers of teams of workers towards these 3 industries, that we interpret as outsourcing transfers. We follow them over time, comparing them with ex-ante similar workers

1 week ago 3 0 1 0
Earnings, wage and hours in these industries compared to average

Earnings, wage and hours in these industries compared to average

The French Labour Force Survey shows that workers from the cleaning, catering or security industries receive low earnings relative to average, because of both a low hourly wage and a high share of involuntary part-time

1 week ago 3 0 1 0
Cutting hours through outsourcing

Cutting hours through outsourcing

New @wid.world working paper with @oliviergodechot.bsky.social

1 week ago 33 16 2 2
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Prenatal loss of father during World War One is predictive of a reduced lifespan in adulthood | PNAS Although early-life stress is known to alter health, its long-term consequences on mortality remain largely unknown. Thanks to unique French legisl...

www.pnas.org/doi/full/10.... et par ailleurs, à creuser, mais la méthodo ici me paraît également un peu fragile... (Comparaison de l'espérance de vie des pupilles de la nation avec un groupe de contrôle défini uniquement sur date of birth, sex, and mother’s age at the infant’s birth)

2 weeks ago 0 0 0 0
Research Integrity Issues in Voigtländer and Voth (2012) - Is It Credible?

Intéressant. Peut-être que PB ne sait pas ce qu'est un écart-type, mais peut-être qu'il a quand même raison de se méfier de travaux comme Voigtländer & Voth (2012) -- cf cette critique par @joefrancis.bsky.social isitcredible.com/papers/4b4fb...

2 weeks ago 10 0 2 0

Le contrat donne le droit à Europresse de faire ça ?...

1 month ago 0 0 0 0

Je parie donc sur 1989, la campagne de publicité de la dernière chance avant la cessation d'activité

1 month ago 1 0 1 0
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entre 87 et 90 ; ) annuaire-entreprises.data.gouv.fr/entreprise/l...

1 month ago 4 0 1 0
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Territoires zéro chômeur de longue durée : un dispositif pris au piège d'attentes contradictoires Éviction ou ambition, il faut choisir

Et un bon billet aussi sur les territoires zéro chômeur cyprienbatut.substack.com/p/territoire...

1 month ago 4 0 0 0

. @cyprienbatut.bsky.social ne m'avait même pas dit qu'il avait un blog ! très bon billet : )

1 month ago 13 2 1 0
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Les ruptures conventionnelles sont ... des ruptures conventionnelles Le reverbère budgétaire n'éclaire qu'une partie de la chaussée

un billet de @cyprienbatut.bsky.social sur les ruptures conventionnelles (et la réduction de l'indemnisation chômage )

cyprienbatut.substack.com/p/les-ruptur...

1 month ago 63 29 0 2

what is the Swiss energy mix?

1 month ago 2 0 1 0
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Alexia Blin - Quand les Américains coopéraient

Wisconsin, 1870-1940

À paraître en juin aux PUR

1 month ago 9 4 0 0

wouldn't 'partisanisation' sound (slightly) more natural?

1 month ago 0 0 0 0

juste un peu plus faible que celui que j'estimais pour 65.)

2 months ago 0 0 0 0

(et pour nuancer mon premier point je ne dis pas que les salariés qui ont eu une carrière stable ne sont pas du tout concernés par la mort entre 60 et 65 ans, ce n'est pas ce que disent les chiffres. le passage de 62 à 64 aurait bien un effet sur cette variable,

2 months ago 0 0 1 0
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Grey Anderson, La guerre civile en France

Grey Anderson, La guerre civile en France

Je lisais justement ces derniers jours cet excellent livre

2 months ago 2 0 2 0
ERSI_30072025.pdf

Et je dirais qu'il y a un enjeu distinct (mais bien sûr lié) de retraites courtes et/ou en mauvaise santé, concentré dans les classes populaires mais beaucoup plus largement répandu, qui relève bien cette fois du système de retraite drive.google.com/file/d/1K1Yf...

2 months ago 1 0 1 0