Lucas Maneschy

🏆A economista francesa Esther Duflo, vencedora do Prêmio Nobel de Economia, visitou o IMPA nesta terça-feira (24). Durante a passagem pelo instituto, ela conheceu iniciativas educacionais desenvolvidas pela instituição, entre elas a @obmep_oficial 🥇 impa.br/notices/ganhad…

A few days ago, Charlie Plosser passed away, another sad loss in a year that has not been kind to the profession. Charlie was one of the great macroeconomists of his generation, and it is difficult to single out just one of his contributions. His 1983 paper with John Long in the JPE, “Real Business Cycles” people.bu.edu/rking/EC702/lp… not only popularized the term RBC but also developed a network structure for the economy that has gained renewed relevance as we seek to integrate disaggregated microdata into business cycle models. His 1982 JME paper with Charles Nelson, “Trends and Random Walks in Macroeconomic Time Series: Some Evidence and Implications” hedibert.org/wp-content/upl… showed that many macroeconomic series did not revert to a linear trend after a shock. The insight that thinking of the economy as fluctuating around a fixed linear trend could be highly misleading has shaped much of my own research and how I interpret both U.S. and Spanish economic history. But perhaps the work that influenced me most was his 1988 JME paper with Robert King and Sergio Rebelo, “Production, Growth and Business Cycles I: The Basic Neoclassical Model”, and especially its technical appendix: people.bu.edu/rking/EC702/kp… This paper synthesized and extended the program of understanding business cycles through the stochastic neoclassical growth model. Even today’s heterogeneous-agent New Keynesian (HANK) models, which represent the state of the art, are variations of this framework, enriched with agent heterogeneity and nominal (and sometimes real) rigidities. The technical appendix trained a generation of students, myself included, in how to loglinearize dynamic equilibrium models and derive their quantitative representation. I still recall, as an undergraduate in 1996, reading the 1988 paper and writing to Sergio Rebelo (then at Rochester) to request a copy of the appendix. A few weeks later, I received a thick yellow folder in the mail. I remember the excitement of opening it and working through the math. I still teach much of that material in my second-year graduate course on computational economics, now reframed as a perturbation problem and with updated notation: sas.upenn.edu/~jesusfv/Lectu… Charlie later closed his career as President and CEO of the Federal Reserve Bank of Philadelphia. As a visiting scholar there, I often spoke with him. His views on monetary policy—the importance of systematic rules, and of focusing on price stability rather than pursuing disparate goals—are more relevant today than ever. Charlie’s example as a researcher, long-time editor of the JME, and dedicated public servant leaves a lasting legacy.

The Chicago Pope implies the existence of a New Keynesian Pope and a Behavioral Pope

The mathematician John Conway didn’t fit into a box. 🧵

@rodrigoj42 É porque eu acredito na bondade do ser humano, jesus.

meio impressionante a quantidade de gente que fala pra desconfiar de IA mas confia em respostas que estranhos aleatórios postaram em fóruns

um menos conhecido: “O maior amor do mundo”. Descanse em paz, e obrigado por ser um artista brasileiro. 3/3

ora brutal e trágico ora mágico e esperançoso. Meu Brasil é o dos filmes de Diegues: apesar em mazelas sempre tem esperança pro que vem a frente. Eterno país do futuro que sabe que mesmo a eternidade um dia chega. Dos muitos sucessos que poderia recomendar prefiro sugerir 2/3

Cacá Diegues morreu nesta madrugada. Se vai o grande diretor de “Bye bye Brasil” e “Deus é Brasileiro” (o qual facilmente está no meu top 10 filmes favoritos). Difícil descrever a genialidade com que retratava o Brasil em seus filmes: ora triste ora alegre, ora pobre ora rico,

Há 35 anos @casseta já colocava a PIADA em DEBATE. Muito antes disso ser modinha. A redação desses esquete é nossa. Se quiser problematizar, volte a 1989.

Se for verdade... chegou a hora de dizer tchau.

🇧🇷 AGORA: Morre, aos 91 anos, o cartunista Ziraldo, criador de 'O Menino Maluquinho'.

Há 200 anos, se outorgava a primeira constituição brasileira. youtu.be/gyCUH0tHbGU?si…

"Carta de 1824 era moderna num país atrasado", diz Christian Lynch | Con... youtu.be/gyCUH0tHbGU?si… via @YouTube

Dear prospective Ph.D. students, deciding where to study, if you get into a top program of your choice, communicate to other places that you are not going. It allows departments to move and make the whole process more efficient and less stressful for many people

GRAVADO PRA SEMPRE. Quem aí sonhava com essa imagem?

Thank you, Stata.

@joao_peterson ???? Que isso cara? Samba é só alegria. Até lamentando tem um tom alegre

botei um samba pra tentar animar e nelson sargento me quebra as pernas "Vai correndo Vai dizer a ela Que são muito tristes os dias meus Que a saudade lentamente me devora Depois que ela me disse adeus" Se bem que escolhi mal o ritmo, samba é 70% tristeza

Hoje se encerra o ciclo do bicentenário na independência. No dia 2 de Julho de 1823, os portugueses foram expulsos da Bahia, encerrando de fato a independência brasileira. O tratado no qual Portugal reconhece a independência brasileira só seria concluído em 1825, no entanto.

@baidavim Parabéns Davi !

Mestre