Mathilde Muñoz

Studying globalization and tax competition @berkeleyecon

[Mathilde Muñoz @MathildeMunoz]

One week ago, I lost my grand-father. Beyond being the greatest grandpa on earth, he also lived an incredible life. Because I always thought that his story was a fantastic historical lesson related to what I research on, I want to share it. Thread on a European success story

[AEA Journals @AEAjournals]

Forthcoming in the AER: "Taxing Top Wealth: Migration Responses and their Aggregate Economic Implications" by Katrine Jakobsen, Henrik Kleven, Jonas Kolsrud, Camille Landais, and Mathilde Munoz. https://t.co/d9yoTeOwlI

[Stefanie Stantcheva @S_Stantcheva]

A major driver of tax evasion isn't just the tax rate but the reporting requirements, at least when it comes to wealth taxes. Our newly revised paper finds that how much you have to disclose matters at least as much as how much you owe 🧵 https://t.co/mAFjV4Jhjk [1/14]

[VoxEU @voxeu]

Mobile seniors and local economic development
Marco Badilla-Maroto, Benjamin Faber, @LevyAntoine, @MathildeMunoz @UCBerkeley @berkeleyecon
https://t.co/hzviTkVpBq

[Mathilde Muñoz @MathildeMunoz]

@helene_rey @LevyAntoine @AdrienBilal Merci beaucoup Helene!

[Mathilde Muñoz @MathildeMunoz]

@HannoLustig @LevyAntoine @AdrienBilal thanks Hanno!!

[Antoine Levy @LevyAntoine]

So proud of my better half @MathildeMunoz for being nominated for the Best Young French Economist prize 2026 - and congrats Adrien @AdrienBilal!
https://t.co/xDp0PjHcTN

[Mathilde Muñoz @MathildeMunoz]

@LevyAntoine @AdrienBilal et huge congrats a Adrien!!!

[NBER @nberpubs]

A study of French microdata finds that inflows of retired migrants have significant positive effects on local economies, that are more pronounced among poorer regions, from @mabadilla98, Benjamin Faber, @LevyAntoine, and @MathildeMunoz https://t.co/ftq9JOIL8m

[Gaetano Basso @tano_basso]

📢 Call for Papers! Join us at @bancaditalia for a workshop on the Economics of Migration

​📅 Submit by March 1st: https://t.co/4CaGdSi3ZB
🏛️ Rome, June 19, 2026

​Featuring: @MathildeMunoz @giov_peri Hillel Rapoport @JoanMonrasEcon & Aitor Lacuesta

​#Migration #EconTwitter

[Stefanie Stantcheva @S_Stantcheva]

Tax rates deserve the attention they get in the public debate. But what the government asks you to reveal for tax purposes can matter a lot too. Our paper on the French wealth tax shows how powerful information requirements can be. Summary here.👇

[Mathilde Muñoz @MathildeMunoz]

Cheap labor and lax labor regulations— not just productivity — shape trade competitiveness, even in the supposedly harmonized EU. Domestic labor and tax policy matter for globalization and how ``fair'' people perceive international competition to be.

[AEA Journals @AEAjournals]

Forthcoming in the AER: "International Trade Responses to Labor Market Regulations" by Mathilde Muñoz. https://t.co/KoJasXlA8G

[Mathilde Muñoz @MathildeMunoz]

@BPlanterose @mvignaud En fait c’est un peu plus compliqué que ça pour le cas Danois, d’après nos discussions c’était l’administration fiscale en charge de faire la valuation des private business assets en pratique mais on a pas trop de chiffres sur la qualité de ces valos.

[Mathilde Muñoz @MathildeMunoz]

@fipaddict @BPlanterose Oui, on prend l’effet de long-terme car notre élasticité de migration est calculée pour le “steady state” donc c’est le plus cohérent pour combiner les deux.

[Mathilde Muñoz @MathildeMunoz]

@BPlanterose De memoire ils ne presentent pas d'estimates de l'elasticite par niveau de wealth au sein du top 1% pour voir si les reponses sont concaves, mais c'est surement dur de detecter quoi que ce soit dans le very top Danois etant donne la taille du sample.

[Mathilde Muñoz @MathildeMunoz]

@BPlanterose Aucune idee, je ne peux pas predire les elasticites avant d'avoir ecrit un papier qui exploiterait cette variation :). C'etait juste pour rebondir sur l'argument de la base taxable, qui etait en fait assez large dans le cas Danois/QJE.

[Mathilde Muñoz @MathildeMunoz]

@BPlanterose juste pour etre rigoureux: l'ISF danois incluait a priori les business assets avec strong reporting requirements ``leaving little scope for tax evasion'' d'apres le QJE paper d'ou on a pris l'estimate de la marge intensive.

[Petra Moser @PMoserEcon]

Stephen Miller is Wrong About American Science @forbes https://t.co/7ePCE40C45

[Florian Ederer @florianederer]

"Boomers without Borders" would be an amazing title. h/t @sc_cath

Portugal quadrupled its number of foreign retirees by offering them 10 years of income tax-free retirement.
Some countries (e.g., Finland) responded by taxing pensions at the source. @LevyAntoine @MathildeMunoz

[Gabriel Zucman @gabriel_zucman]

Ce n’est pas seulement que le nombre de départs est très faible, c’est surtout que leur effet économique est négligeable :

“une baisse de 0,05% de l’emploi total et de 0,07 % de l’investissement total” d’après les auteurs :

https://t.co/B3UbutHz7u