Billy Tulungen

an enthusiast of economics, causal inference, and public procurement

[Billy Tulungen @billythandy]

@Txtdariiugm Tapi apakah secara otomatis menjadi kepala daerah, sy rasa tdk fair juga utk sistem pemerintahan skrg. Sepanjang bisa menunjukan kompetensi, siapapun itu layak. Lulusan IPDN kebetulan start lbh awal dibandingkan lulusan lain dlm hal karir di birokrasi.

[Billy Tulungen @billythandy]

@Txtdariiugm Sbg alumni IPDN, sya merasa semua org yg kompeten berhak menjadi kepala daerah. Lulusan IPDN memang dilatih jdi local leader, dan skrg sdh byk berubah. Masuk IPDN pun skrg layernya cukup byk, dgn saringan awal tes SKD CAT yg persis sama dgn tes CPNS.

[QJE @QJEHarvard]

Recently accepted by #QJE: “Praying for Rain,” by Espín-Sánchez (@JosespinSanchez), Gil-Guirado and Ryan: https://t.co/NQ5pYrehPr

[Weijie Su @weijie444]

Personal update: I've joined OpenAI while on leave from Wharton. After a decade away, glad to be back in the Bay Area and train AI models here!

One more thing, I've been promoted to full professor, a decade-long journey made possible by many, especially my students.

[OpenAI @OpenAI]

AI can give researchers the freedom to pursue “crazier” ideas.

For Terence Tao, AI creates more room to experiment, test unexpected paths, and discover what might otherwise stay out of reach.

[Billy Tulungen @billythandy]

A must-read for anyone working with Difference-in-Differences (DiD) designs. The comprehensive practitioner's guide by the experts is finally published in the Journal of Economic Literature!

Highly recommended for researchers and policy analysts.

[Pedro H. C. Sant'Anna @pedrohcgs]

Our paper “Difference-in-Differences Designs: A Practitioner’s Guide” is now published in the Journal of Economic Literature. It took us a while but we are happy!

We put together a lot of material to make the paper useful in practice: https://t.co/30TbAgihlz

Hope you like!

[Nicholas Decker @captgouda24]

The ultimate lesson of behavioral economics is that people cannot be trusted with behavioral economics. They need supply and demand, opportunity costs, broken windows, first welfare theorem, deadweight loss, and all the rest until they can be trusted not to overreact.

[Billy Tulungen @billythandy]

@Zawwaf_ @Ogaman888 Skrg econ sdh byk pakai data history. Kalau mau baca frontiernya, memang bacanya di jurnal atau working paper di top conference. Gk perlu sampai method dlu, minimal tertarik aja bacanya. Method itu dipelajari kalau sdh ada fondasinya dulu.

[Billy Tulungen @billythandy]

@Zawwaf_ @Ogaman888 https://t.co/ku8PpYvFfA. Ini menarik, topik Indo tapi publish di top 5 econ journal. Authornya juga sering meneliti pakai data sejarah https://t.co/TaF2nRyZKH. Kalau jurnal yg bahas khusus econ x history, yg bgs salah satunya di Explorations in Economic History.

[Billy Tulungen @billythandy]

@Ogaman888 @Zawwaf_ Di Indo, sdh ada bbrapa data sejarah yg dipake di paper top econ misalnya lokasi pabrik gula jaman kolonial. Masih byk data sejarah indo yg tersusun di ANRI yg blm dieksplore, dan potensinya bisa ke jurnal yang breputasi.

[Billy Tulungen @billythandy]

@Ogaman888 @Zawwaf_ econ mngkn satu2nya ilmu soshum yg STEM. Kalau masuk 1st year PhD Econ pasti tau kenapa. Dan uniknya intersection econ & history sdh byk digali (krn bbrapa metode analisis kuantitatif yg perlu data sejarah).

[Billy Tulungen @billythandy]

@sad_muel @argentas58 kalau sya justru ingin belajar, krn mungkin ekonometrika yg sya pelajari blm cukup frontier, karena saya blm bisa menangkap bagian mana yang merupakan analisis ekonometrika di situ.

[Billy Tulungen @billythandy]

@Dikaa11_ @Fajri_jikhul12 @cania_citta beliau dosen di UI? Fakultas mana?

[Apoorva Panidapu @apoorvapanidapu]

Earlier this month I volunteered at Stanford’s Future of Math symposium, and ever since, I've been puzzling through what it now means to pursue mathematics as a student in the age of AI. I wrote an essay to make sense of it all: https://t.co/cYyUDqSady

[Billy Tulungen @billythandy]

@kumoridaee28 Ada yg punya pdf-nya? udah gk bisa diakses lagi soalnya.

[Prof. Shamika Ravi @ShamikaRavi]

Why judges need training in Economics.
An excellent study.
https://t.co/PeRqSAgE8O

[Billy Tulungen @billythandy]

@listyantidewi Selain itu, skripsi itu bukan kewajiban (kecuali di bbrapa department). Tapi bagi yg ingin dapat Honors, wajib menyusun skripsi. Penerima Honors ini yg menjadi kandidiat utk dapat predikat latin summa claude/sejenisnya.

[Billy Tulungen @billythandy]

@listyantidewi Kalau di harvard, predikat seperti itu ada cutoffnya. Misalkan summa claude itu top 5% & penilaian tambahan dari jurusan/department. Makanya pasti predikat summa cumlaude minimal IPKnya berbeda tiap angkatan. Referensi: https://t.co/Snx7jmqNvD

[Khoa Vu @KhoaVuUmn]

Wake up babe, econ twitter is back.

[AEA Journals @AEAjournals]

The May 2026 issue of AEA Papers and Proceedings (116) is now available. https://t.co/UE6apaDKZk