Tomasz Woźniak
@tomaszwozniak.bsky.social
4.3K followers 1.9K following 470 posts
a Bayesian econometrician developing methodology for empirical macroeconomic analyses and programming in 𝗥 and 𝗰𝗽𝗽. See my 𝗥 packages 𝗯𝘀𝘃𝗮𝗿𝘀 and 𝗯𝘀𝘃𝗮𝗿𝗦𝗜𝗚𝗡𝘀! https://bsvars.org/ @bsvars.org #bsvars #bsvarSIGNs #rstats #econsky
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tomaszwozniak.bsky.social
👽 There it is! 👾 Our new and shiny paper for the Journal of Econometrics! 🤖 doi.org/10.1016/j.je... 🚀

In this paper:
✅ we provide general conditions for partial identification of Structural VARs through heteroskedasticity

👇

#econometrics #1000hofComputations #itwaswothit
tomaszwozniak.bsky.social
This is exactly what I meant 🙂
tomaszwozniak.bsky.social
True! Although, as much as there's lots of sharing, there's also lots of personal glory! Still, not too bad!
tomaszwozniak.bsky.social
✅ we show that it's great for analysing fiscal policy effects on the economy
✅ it's the methodological paper for my bsvars package

YAY! 👍
tomaszwozniak.bsky.social
✅ we analyse the prior for conditional variances of the non-centred Stochastic Volatility
✅ we argue it's perfect for Structural VARs bc:
1️⃣ it normalises the system
2️⃣ allows reliable verification of partial identification
3️⃣ leads to more precise estimates
www.sciencedirect.com/science/arti...
👇
Partial identification of structural vector autoregressions with non-centred stochastic volatility
We consider structural vector autoregressions that are identified through stochastic volatility under Bayesian estimation. Three contributions emerge …
www.sciencedirect.com
tomaszwozniak.bsky.social
👽 There it is! 👾 Our new and shiny paper for the Journal of Econometrics! 🤖 doi.org/10.1016/j.je... 🚀

In this paper:
✅ we provide general conditions for partial identification of Structural VARs through heteroskedasticity

👇

#econometrics #1000hofComputations #itwaswothit
Reposted by Tomasz Woźniak
tomaszwozniak.bsky.social
That’s it pretty much! It’s openMP in C++ finally working for me 🤩
tomaszwozniak.bsky.social
🚀✨ The feeling when you have been coding your package in such a way that adding that one line of code speeds up the computations at least 5x!!!
#rstats #openmp #cpp
tomaszwozniak.bsky.social
Ah fun! I’m using ‘beepr::beep(6)’ for the same purpose on a local machine👹🤩
tomaszwozniak.bsky.social
Perfect! This is just what I was looking for! Thanks 💙💛
united24media.com
Chapter Ukraine is a new interactive platform by Chytomo showcasing Ukrainian books in translation and connecting readers, libraries, and bookstores worldwide.

🧵 1/4 ⬇️
tomaszwozniak.bsky.social
Also, in Melbourne in general, despite so many vegetarians and vegans out there, the vegetarian restaurant scene has not developed. There are just individual places here and there. Relatively speaking, Warsaw is a vegetarian Mecca! Back to the topic!
tomaszwozniak.bsky.social
That’s a cool paper! I’ll distribute it here and there. Funny enough I have visited many times Berlin unis and Erasmus University in recent years. And indeed the difference is huge relative to Melbourne. There’s always a veg option but the menus are dominated by meat meal - crazy!
tomaszwozniak.bsky.social
Btw it’s so much easier to convince academics to behavioural change. I hear (and practice) a lot statements like: I liked eating meat but stopped bc of what I read. Flying is a different thing bc these folks choose to fly less than they would otherwise but the contractual is not observed.
tomaszwozniak.bsky.social
Similarly, the better equilibrium is where people are healthier, climate change milder, and biodiversity preserved. But we’re all stuck in a bad Nash equilibrium in a prisoners game bc both consumers and producers can’t find a pathway to a better solution at once. An intervention is required…
tomaszwozniak.bsky.social
Good 🧵 I keep reappearing to my economic theory colleagues that getting to the new better equilibrium does not happen by itself. It happens through the groundwork, shifting norms and culture. But changing education system helps a lot here 🤩
tomaszwozniak.bsky.social
Hey, that's my paper! 😍
bsvars.org
⚠️ Publication alert! ⚠️ The methodological paper for the bsvars package has just been accepted for publication in the Journal of Econometrics! 📄 Here's it's author's accepted manuscript: doi.org/10.48550/arX...

Watch this space! 👀 Lot's of goodies coming up! 🌟

#bsvars #rstats
tomaszwozniak.bsky.social
BTW, I gave two lectures to this paper and the Bayesian treatment of unit-root non-stationarity in my Macroeconometrics subject! And my reproduction of their figures is featured in the subject hex sticker (bc my subjects have hex stickers! 😆) #rstats
tomaszwozniak.bsky.social
Yeah, but in this paper it’s only about simulated data! There’s no real data in the Helicopter Tour paper! Btw it is a masterpiece imho 🤩
Reposted by Tomasz Woźniak
bsvars.org
🥳 When did that happen! 🎉

Our package bsvarSIGNs has just reached 5K downloads! 🚀

Thank you and stay with us!

#rstats #bsvarSIGNs
tomaszwozniak.bsky.social
🐨 Join me on Monday for an in-person and online workshop on 🐋 Getting Started with C++ for Faster Statistical Modelling in R 🦘 taking place during the WOMBAT workshop #NoWombatEmoji @wombat.numbat.space

🕸️ Program and registrations at: wombat2025.numbat.space/program/tuto... 🕷️

#rstats #rcpp
tomaszwozniak.bsky.social
🐨 Last chance to register! 🦘

🐋 For my Monday in-person and online workshop on 🦈 Getting Started with C++ for Faster Statistical Modelling in R 🕷️ taking place during the WOMBAT workshop #NoWombatEmoji

🕸️ Program and registrations at: wombat2025.numbat.space/program/tuto...

#rstats #rcpp
tomaszwozniak.bsky.social
🐨 Last chance to register! 🦘

🐋 For my Monday in-person and online workshop on 🦈 Getting Started with C++ for Faster Statistical Modelling in R 🕷️ taking place during the WOMBAT workshop #NoWombatEmoji

🕸️ Program and registrations at: wombat2025.numbat.space/program/tuto...

#rstats #rcpp
WOMBAT 2025
The Annual Workshop Organised by the Monash Business Analytics Team will be held on the 29th and 30th September 2025 at Monash University (downtown), Melbourne, Australia.
wombat2025.numbat.space
tomaszwozniak.bsky.social
It’d be so funny if it wasn’t so serious and literally about human lives.