@wid.world.bsky.social
Illuminating the debate through data-driven research #inequalitydata✨ Hosting the World Inequality Database🌐 https://wid.world/ https://inequalitylab.world/en/
Unlike owner-occupants, owners of rental, second, and vacant homes don’t factor natural disaster risks into prices.
Absentee landlords own about half of all homes in flood-risk areas.
Overvaluation in flood zones would drop at least 15% if these properties were priced like owner-occupied ones.
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The French insurance system is financed through a 20% additional premium on home insurance premiums and operates through a mechanism of cross-subsidization from low-risk areas to high-risk areas.
It benefits:
🔹second homes in the case of flooding
🔸owner-occupied homes in the case of subsidence
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🔸Owner-occupied homes owned by middle income households are more exposed to subsidence.
🔹Second homes often owned by wealthy and diversified households are particularly exposed to flooding.
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Single-property owners are highly vulnerable with flood damages representing on average 20% of their total real estate wealth.
Owners of rental, second, or vacant properties are the least vulnerable households, flood damages amounting to just about 3% of their real estate wealth.
[2/6]
Inequalities in exposure to environmental risks – flooding and subsidence – are high and vary across home ownership status in France (owner-occupants, and owners of rental, second, or vacant homes) [🧵1/6]
New study by Thomas Bézy 🔗 wid.world/news-article...
"Un impôt plancher sur les ultrariches ne ferait que parachever la révolution entamée il y a un siècle, en soumettant aux règles communes les très grandes fortunes qui aujourd’hui y échappent."
www.lemonde.fr/idees/articl...
How much investment is needed to close the global gap in health and education, and over what timescale?
New study by @nitin-k-bharti.bsky.social A. Gethin @markjmn.bsky.social @zhexunmo.bsky.social @thomaspiketty.bsky.social & Li Yang.
🔗Study and key findings wid.world/news-article...
📄In this new theory working paper, S.Subramanian makes the case for combining across the board measures with tailender indices into a composite index to measure and mitigate inequality.
Read more: wid.world/news-article...
The study is available in Spanish on @esade EcPol's website:
www.esade.edu/ecpol/es/pub...
In Spain, there is a clear North/South wealth divide.
Madrid stands out for having the highest average wealth levels (€687,000 per household), ≈ 80% > national average.
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The asset portfolio changes a lot depending on the wealth level of households:
🔹For the bottom 20%, current accounts are the most relevant asset, ≈ 60% of their portfolio.
🔹For the top 10%, investment properties, business assets, and especially equities and investment funds are more important.
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Real estate assets dominate household wealth across most of Spain, accounting for just over 50% of the total.
Primary residences alone account for over 30%.
[3/5]
In Spain, like everywhere in the world, wealth distribution is much more unequal than income.
The top 1% accumulates a quarter of the wealth; the top 10%, 60%.
This is more or less in line with neighboring countries.
[3/5]
📊Study co-authors combined administrative fiscal data + household surveys + national accounts between 2016-2022.
👩👩👦👦 ≈ a panel representative of 2.9M individuals (1M households) at national/regional level (except Basque Country & Navarra).
🔴The data is freely accessible on spainwealthatlas.world
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🇪🇸 How is wealth distributed in Spain ?
This study, co-authored by G.A. Marrero @cmtneztt.bsky.social @juancpal.bsky.social & D.Petrov, is the first systematic analysis of regional wealth inequality in Spain.
Key findings in 🧵[1/5]
wid.world/news-article...
What would a just distribution of socio-economic and environmental resources look like at the global level from 2025 to 2100 – both between and within countries?
From now to June 2026, the #GlobalJusticeProject will help provide answers.
inequalitylab.world/en/global-ju...
[1/5]🧵
It's great to see WID data wid.world being used widely to drive the public debate!
👏 @jasonhickel.bsky.social
This study is the foundational paper of the Spanish Opportunity lab @labdeoportunidades.bsky.social, a research center dedicated to advancing our knowledge on the causes and consequences of social mobility and inequality in Spain using big data.
labdeoportunidades.com/en/
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Children who move at age 13 with their families from a low-opportunity to a high-opportunity area experience a causal effect of around 14% on their adulthood income compared to similar children who do not move.
[6/7]
Causal effects of growing up in a better neighborhood explain almost 60% of the geographic variation in upward mobility rates.
[5/7]
Intergenerational mobility has declined between people born in the early 1980s and those born in the early 1990s.
The 2008 economic crisis hit young people from poorer families especially hard when they entered the job market.
[4/7]
Spain ranks in the lower-middle range in international comparisons of intergenerational mobility.
In Spain, only 10% of children from the bottom 20% reach the top 20%, while over 60% of those born in the top 20% remain in the top half.
It’s slightly better than the US, but not as good as Sweden.
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The study draws from the Spanish Opportunity Atlas 2.0, a new administrative dataset that links millions of parents and children born in the 1980s and 1990s and follows them over more than 25 years using rich tax and census data.
labdeoportunidades.com/en/map/
[2/7]
In this NEW study, @javiersoria.bsky.social & @octaviomedina.bsky.social map intergenerational mobility across Spain — and what drives it.
Key findings in this thread [1/7]🧵🇪🇸
wid.world/news-article/intergenerational-mobility-in-spain-geographic-analysis-and-causal-neighborhood-effects/
By opposing the 2% minimum wealth tax on billionaires, the French Senate has revealed just how out of touch it is with the issues of our time.
www.lemonde.fr/blog/piketty...
Débat de l'Egalite passionnant avec Arnaud Orain, @thomaspiketty.bsky.social & @lucaschancel.bsky.social pour finir la saison 2024-25.
Rdv à la rentrée pour + de rencontres autour d'un livre 📚
Rejoignez notre liste pour recevoir les invit' ✍️ wid.world/subscribe-to...
@ehess.fr @pse.bsky.social
RDV lundi à 12h30 sur le campus Jourdan (Paris 14e), pour une rencontre avec Arnaud Orain autour de son dernier essai sur le capitalisme de la finitude.
🎫Entrée libre sur inscription ici : inequalitylab.world/fr/event/le-...
@editionsflammarion.bsky.social @pse.bsky.social
Researchers from around the world gathered in Paris to share the latest findings on inequality and labour income in Southeast Asia.
🔍Regional overviews + country insights on 🇮🇳 🇨🇳 🇵🇭 🇻🇳 🇹🇭 🇲🇾 - with inputs from WIL fellows @nitin-k-bharti.bsky.social @markjmn.bsky.social & @jonasdietrich.bsky.social.
Pour que les Français acceptent la nécessaire consolidation des finances publiques, il faut que la charge en soit équitablement répartie. Ma tribune @lemonde avec O. Blanchard et G. Zucman.
www.lemonde.fr/idees/articl...
Les inégalités mondiales ont tendance à progresser. Mais les politiques publiques peuvent changer la donne. Les politiques de prédistribution, réduire les inégalités avant même toute redistribution, permet d’obtenir le meilleur résultat.
www.alternatives-economiques.fr/inegalites-m...
