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Periklis Daflos

@perikl.is
112 followers 985 following 24 posts

perikl.is

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Reposted by Periklis Daflos
Klaus Seipp @klausseipp.bsky.social · 14/08/2026
Im Nachgang zum Podcast noch drei kleine Erklärartikel auf meinem Substack. klausseipp.substack.com/p/die-rente-...
klausseipp.substack.com
Die Rente ist sicher
Ihr müsst nicht einmal daran glauben
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Ethan Mollick @emollick.bsky.social · 23/07/2026
I wrote the latest of my occasional guides to which AI to use right now for non-experts who want to get stuff done. The agentic systems available to everyone are getting extremely powerful (even as the names and features continue to be really confusing): www.oneusefulthing.org/p/an-opinion...
oneusefulthing.org
An opinionated guide to which AI to use to do stuff
The Summer 2026 Edition
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Scott @scottydo16.bsky.social · 19/07/2026
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Tim Duffy @timfduffy.com · 29/06/2026
Neat chart from @bswud.bsky.social showing that high cumulative doses of radiation can be well-tolerated if spread out over time. I recommend the attached article and the publication Works in Progress in general. worksinprogress.co/issue/how-to...
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Klaus Seipp @klausseipp.bsky.social · 30/04/2026
Ein Gespenst geht um in Deutschland. Die Angst vor der #Deindustriealsierung und dem wirtschaftlichen Abstieg. Wie immer neigt die Debatte zu Alarmismus und starken Übertreibungen. Kaum aber Jemand hinterfragt, ob die #Industrie tatsächlich Deutschlands Zukunft sein kann. 🧵1/9
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Periklis Daflos @perikl.is · 30/03/2026
Though you should probably check out the way more in-depth series from @paulgp.com instead!
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Periklis Daflos @perikl.is · 30/03/2026
In the past few weeks, I’ve shown Claude Code to (economist) friends & colleagues and, as a byproduct, created a presentation around using Claude Code for Economic Research. I‘ve now turned that presentation into a more in-depth blog post that you can find here: perikl.is/posts/2026/c...
perikl.is
Using Claude Code for Economic Research
A short guide for using Claude Code to do economic research
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David Beckworth @davidbeckworth.bsky.social · 09/03/2026
Delighted to have Jesus Fernandez-Villaverde back on the pod this week. We cover demographic decline, the robustness of dollar dominance, AI, and whether his vast expertise defies comparative advantage! www.youtube.com/watch?v=eRvI...
youtube.com
Jesús Fernández-Villaverde on the Quandary of Global Demographic Decline | Macro Musings
YouTube video by Macro Musings with David Beckworth
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Periklis Daflos @perikl.is · 22/02/2026
A level-headed analysis on the labor regulations in Europe that are hampering innovation, with examples (in Europe!) of how to improve in this space. worksinprogress.co/issue/why-eu...
worksinprogress.co
Why Europe doesn’t have a Tesla  - Works in Progress Magazine
Europe's cutting edge firms are falling far behind the American frontier because of restrictive labor laws.
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Dezernat Zukunft @dezernatzukunft.bsky.social · 15/01/2026
Zeit für ein historisches Comeback: Lässt sich die Krise der deutschen Industrie wieder umkehren? Das erörtern @therealmaxpower.bsky.social und @philippasigl.bsky.social im neuen #Geldbrief anhand relevanter Beispiele aus der Geschichte. Jetzt lesen ⬇️
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Ethan Mollick @emollick.bsky.social · 07/01/2026
I wrote about Claude Code and why non-coders should be paying attention (and playing with the system) - it shows what today’s LLMs can do Along the way I had Claude launch a business for me & build a game that simulates the rise and fall of civilizations. open.substack.com/pub/oneusefu...
open.substack.com
Claude Code and What Comes Next
With the right tools, AI can accomplish impressive things
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Periklis Daflos @perikl.is · 07/01/2026
Also, if you want to replace RA classification work via an LLM API, going with an Open-Source LLM (nowadays quite capable) and a low model temperature might improve replicability. In this case you should also try different model parameters for robustness, especially now that the APIs are so cheap.
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Periklis Daflos @perikl.is · 07/01/2026
I think it’s worth emphasizing how good Claude Code is in VSCode nowadays. Both for quick prototyping (e.g., building zero-shot streamlit GUIs for classification tasks) but also for important code/ debugging. For the latter, it’s important to iterate slowly in order to be able to verify the code.
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Periklis Daflos @perikl.is · 02/01/2026
A very thoughtful piece on the current state of the credibility revolution in Macro. carloschavezp29.substack.com/p/why-macro-...
carloschavezp29.substack.com
Why Macro Never Had a Credibility Revolution
And Where Macro and Micro Are Converging Now
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Periklis Daflos @perikl.is · 14/12/2025
Are we stuck with the same Desktop UX forever? www.youtube.com/watch?v=1fZT...
youtube.com
Are we stuck with the same Desktop UX forever? | Ubuntu Summit 25.10
YouTube video by Canonical Ubuntu
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Lauren Leek @laurenleek.eu · 09/12/2025
I wanted dinner recommendations so I scraped 13,000+ London restaurants and accidentally discovered Google Maps is running a shadow economy. Anyway here's a dashboard and a political economy thesis: open.substack.com/pub/laurenle...
open.substack.com
How Google Maps quietly allocates survival across London’s restaurants - and how I built a dashboard to see through it
I wanted a dinner recommendation and got a research agenda instead. Using 13000+ restaurants, I rebuild its ratings with machine learning and map how algorithmic visibility actually distributes power.
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Christian Odendahl @codendahl.bsky.social · 04/12/2025
Do you know which places in Europe are digitalising fast? #Berlin and Greece. No, seriously. www.economist.com/europe/2025/...
economist.com
Greece is teaching Germany how to get government online
A legendary bureaucracy is making Olympian efforts at digitalisation
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Martin Sandbu @martinsandbu.ft.com · 20/11/2025
What's the matter with Germany? Because it's not what you think it is. on.ft.com/4raAAk3
on.ft.com
Germany’s problems are worse than you think
[FREE TO READ] It’s not as simple as blaming the unravelling of the global trading system
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Stefan Sell @stefan-sell.bsky.social · 20/11/2025
Immer mehr Waren rollen über Europas Straßen. In Deutschland gibt es täglich rund 800.000 Lkw-Fahrten. Viele Aufträge landen bei osteuropäischen Subunternehmen. Niedrige Löhne und harte Bedingungen prägen den Alltag der Fahrer.DLF-Sendung. Audio: www.deutschlandfunk.de/lkw-fahrer-i...
deutschlandfunk.de
Lkw-Transporte in Europa: Die Schattenseite des Warenverkehrs
800.000 Lkw-Fahrten gibt es täglich in Deutschland. Viele Fahrer aus Osteuropa arbeiten für wenig Lohn unter harten Bedingungen.
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Georg Weizsäcker @georgweizsaecker.bsky.social · 18/11/2025
A data source dries up
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Hadley Wickham @hadley.nz · 06/11/2025
Do you teach #rstats? Do your students complain about how lame and old-fashioned dplyr is? Don't worry: I have the solution for you: github.com/hadley/genzp.... genzplyr is dplyr, but bussin fr fr no cap.
github.com
GitHub - hadley/genzplyr: dplyr but make it bussin fr fr no cap
dplyr but make it bussin fr fr no cap. Contribute to hadley/genzplyr development by creating an account on GitHub.
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Econometrica @ecmaeditors.bsky.social · 24/10/2025
A widely held view is that the Gini coefficient is not decomposable by subgroups. This paper proposes an axiomatic framework that ensures well-behaved within and between-group terms under which the Gini is decomposable with a novel and unique formula. buff.ly/XdnzG6F
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Ethan Mollick @emollick.bsky.social · 19/10/2025
I wrote an updated guide on which AIs to use right now, & some tips on how to use them (and how to avoid falling into some common traps) A lot has changed since I last wrote a guide like this in the spring, and AI has gotten much more useful as a result. open.substack.com/pub/oneusefu...
open.substack.com
An Opinionated Guide to Using AI Right Now
What AI to use in late 2025
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Giles Wilkes @gilesyb.bsky.social · 07/10/2025
The incredible numbers - an actual trillion of investment, via an unquoted start up - and circularities (Nvidia investing in OpenAI and Intel, OpenAi in AMD, billion dollar purchases paid with stock, the cash, where's the cash etc? - are just mind boggling on.ft.com/4mNOdCh
on.ft.com
OpenAI’s computing deals top $1tn
Partners including Nvidia, AMD and Oracle have signed up to Sam Altman’s huge bet on the future of artificial intelligence
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Periklis Daflos @perikl.is · 29/09/2025
Bonn is (close to) free regarding tuition if that helps
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Periklis Daflos @perikl.is · 21/09/2025
For once it‘s worth looking at the comment section here
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Periklis Daflos @perikl.is · 16/09/2025
Sehr lesenswerter Artikel zur katastrophalen Lage von Studierenden aus Südasien an privaten deutschen Hochschulen taz.de/Junge-Inder-...
taz.de
Junge Inder in Deutschland: Das Geschäft mit den Studis
Ritik Yadav und Shivam Kumar kamen zum Studium an einer Privat-Uni nach Deutschland. Jetzt arbeiten sie beim Lieferdienst und in der Gastro.
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Periklis Daflos @perikl.is · 09/08/2025
Crazy that this is in such a stark contrast to manufactoring labor productivity in Germany (not quite the same statistic though: different timeline & output per worker, from here: www.wirtschaftsdienst.eu/inhalt/jahr/... )
This graph shows labor productivity in Germany since 1970. The manufactoring sector is on top, the whole economy, services & construction is below. The index is set to 1991 = 100.
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Periklis Daflos @perikl.is · 31/07/2025
Related reporting: www.ft.com/content/7052...
ft.com
What’ll happen if we spend nearly $3tn on data centres no one needs?
Nineties adults remember
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Periklis Daflos @perikl.is · 22/07/2025
You can order these online through various online shops, here's an overview PDF with some shops on the third page: assets.adac.de/image/upload...
assets.adac.de
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Andrew Heiss @andrew.heiss.phd · 03/07/2025
Ooh, @posit.co's Positron is no longer in beta as of this week(!), and it recently added support for DuckDB databases in the Connections Pane positron.posit.co/connections-... - any db connection you add with {connections} shows up there—this is magical! #rstats
Screenshot from Positron showing code that connects to a database, and then highlights the connection in a Connections Pane and shows the data in a Data Explorer tab

Here's the code:

library(dplyr)

# Connect with {connections}, which automatically adds this to the panel
con <- connections::connection_open(duckdb::duckdb(), ":memory:")

# Or do it manually with {DBI}
# con <- DBI::dbConnect(duckdb::duckdb(), ":memory:")
# connections::connection_view(con)

# Add some stuff to the database
copy_to(con, penguins, name = "penguins", overwrite = TRUE)
copy_to(con, gapminder::gapminder, name = "gapminder", overwrite = TRUE)

# Get stuff out of the database
adelie_query <- tbl(con, I("penguins")) |> 
  filter(species == "Adelie")

# Check it out! It's SQL!
show_query(adelie_query)

# Actually run the query
penguins_from_db <- adelie_query |> 
  collect()
penguins_from_db

connections::connection_close(con)
# Or this: 
# DBI::dbDisconnect(con)
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Alice Evans @draliceevans.bsky.social · 23/06/2025
Why is Scandinavia the Most Gender Equal Place in the World? My two part series weaves economic history, sociology, and my own qualitative research 1) www.ggd.world/p/why-is-sca... 2) www.ggd.world/p/why-is-sca...
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Periklis Daflos @perikl.is · 20/06/2025
I wonder what the results of this paper would look like today, after many years of speed optimizations in many programming languages www.sas.upenn.edu/~jesusfv/com...
sas.upenn.edu
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Jacob Edenhofer @jacobedenhofer.bsky.social · 27/05/2025
Very nice article on rising market power and the fall of the labour share www.chicagobooth.edu/review/are-e...
chicagobooth.edu
Are Employers Playing a Game of Monopsony?
Labor&rsquo;s share of national income&nbsp;has fallen, and competition for workers may have something to do with it.
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Luca Fornaro @lucafornaro.bsky.social · 06/04/2025
Olivier Blanchard argues that we should understand better the macroeconomics of the medium run, and I could not agree more. Since I have been working on this for a while, let me show you why this is a promising field for young researchers!
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Periklis Daflos @perikl.is · 05/04/2025
Not anymore :)
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Periklis Daflos @perikl.is · 26/03/2025
Amazing piece on how recent TV shows haven't been that great, actually: www.readtrung.com/p/the-case-a...
readtrung.com
The Case Against Streaming TV Shows
New streaming TV shows ask for a 20-30 hour time commitment. Unlike network TV, you will often be binge-ing alone and may never even get a pay-off (or the pay-off will suck).
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Periklis Daflos @perikl.is · 22/02/2025
The blog post linked at the end of this thread (and the thread itself) is a very nice summary of recent research on how cross-gender friendships affect gender equality, check it out! The corresponding working paper can be found here: www.nber.org/papers/w33480
nber.org
Cross-Gender Social Ties Around the World
Founded in 1920, the NBER is a private, non-profit, non-partisan organization dedicated to conducting economic research and to disseminating research findings among academics, public policy makers, an...
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Periklis Daflos @perikl.is · 17/12/2024
See also this complementary paper on Macroeconomic ABM: doi.org/10.1007/s001...
doi.org
Drawing on different disciplines: macroeconomic agent-based models - Journal of Evolutionary Economics
Macroeconomic modelling has been under intense scrutiny since the Great Financial Crisis, when serious shortcomings were exposed in the methodology used to understand the economy as a whole. Criticism...
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Periklis Daflos @perikl.is · 17/12/2024
After reading this paper, I don't understand why ABM hasn't found its way into modern Macro yet, especially as ABM is basically the definition of Microfoundations. doi.org/10.1093/oxre...
doi.org
An interdisciplinary model for macroeconomics
Abstract. Macroeconomic modelling has been under intense scrutiny since the Great Financial Crisis, when serious shortcomings were exposed in the methodolo
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Periklis Daflos @perikl.is · 15/12/2024
The same guy also has a wonderful Econ PhD placements dataset on his website btw: pablogguz.shinyapps.io/econphd_plac...
pablogguz.shinyapps.io
The Econ PhD placements dataset
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Periklis Daflos @perikl.is · 15/12/2024
It looks like not all Germans living in Spain are living in Mallorca after all! (Map created with a tool by Pablo García-Guzmán: pablogguz.shinyapps.io/dataviz_migr...)
A map showing the absolute amount of German immigrants in different Spanish provinces. Surprisingly, there are quite a few German immigrants in e.g. Alicante, Santa Cruz de Tenerife and Málaga (besides of course Barcelona and Madrid), although one would think that all Germans would move to Mallorca/the Balearic Islands.
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Evan Peck @peck.phd · 20/11/2024
Trying something new: A 🧵 on a topic I find many students struggle with: "why do their 📊 look more professional than my 📊?" It's *lots* of tiny decisions that aren't the defaults in many libraries, so let's break down 1 simple graph by @jburnmurdoch.bsky.social 🔗 www.ft.com/content/73a1...
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Periklis Daflos @perikl.is · 21/11/2024
Auf Anhieb vielleicht die "Bilder des Tages" der SZ? www.sueddeutsche.de/thema/Bilder
sueddeutsche.de
Bilder - aktuelle Themen & Nachrichten - SZ.deMenüSuchenSüddeutsche ZeitungMenüSuchenSüddeutsche ZeitungSZ PlusSZ PlusSZ PlusSZ PlusSZ PlusSZ PlusSZ PlusSZ PlusSZ PlusSZ PlusSZ PlusSZ PlusSZ PlusSZ Pl...
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Periklis Daflos @perikl.is · 21/11/2024
For anyone who's looking for (some of) the other chapters, they are all neatly organized here: www.rfberlin.com/discussion-p...
rfberlin.com
Discussion papers
Discussion Papers On this page, you’ll find discussion papers from the Rockwool Foundation Berlin (RFBerlin) and Centre for Research and Analysis of Migration (CReAM), as well as early-access chap...
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Periklis Daflos @perikl.is · 19/11/2024
The cutting-edge version of this can be found here, a Shrek-Redneck song with an accompanying music video: www.youtube.com/watch?v=ppyF...
youtube.com
Shrek - Redneck Fairytale (Official Music Video)
YouTube video by demonflyingfox
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