Sign in

Wojtek Kopczuk

@wwwojtekk.bsky.social
12K followers 260 following 1.4K posts

Economist, tax policy/inequality. Professional skeptic. Anti-illiberal. www.columbia.edu/~wk2110/index.html @wwwojtekk at various other websites

PostsRepliesMedia
Wojtek Kopczuk @wwwojtekk.bsky.social · 10/09/2026
The new world map might shift Trump's attention from Greenland to Sahara
130
Wojtek Kopczuk @wwwojtekk.bsky.social · 11/07/2026
Gripping
170
Wojtek Kopczuk @wwwojtekk.bsky.social · 07/07/2026
You'll stop laughing when Marines capture Antwerp, supposedly in revenge for King Leopold II so that you won't be even allowed to complain about it on bluesky
090
Wojtek Kopczuk @wwwojtekk.bsky.social · 16/06/2026
My reading of the literature on employment effects of minimum wage is that nobody who works on it will ever be unemployed
4478
Wojtek Kopczuk @wwwojtekk.bsky.social · 11/06/2026
My advice as an economist is to avoid keeping your savings under your mattress for 125 years in stacks of $100 bills. I also advise not to keep bars of gold under your mattress because it's very uncomfortable. You're welcome for these insights
2202
Wojtek Kopczuk @wwwojtekk.bsky.social · 10/06/2026
Iykyk
2221
Wojtek Kopczuk @wwwojtekk.bsky.social · 09/06/2026
Unsurprisingly, it's mostly a shrug here except for a few people who pretend it is ok. I'll add another one in this genre that made my jaw drop.
1201
Wojtek Kopczuk @wwwojtekk.bsky.social · 25/05/2026
I've been on nine flights in the last 10 days, in the US and Europe, and have not seen almost any masks, but this is a perfectly enjoyable discourse to have for both sides
090
Wojtek Kopczuk @wwwojtekk.bsky.social · 20/05/2026
I read it in Polish. Nothing in this article (which is a summary of her live answers to questions from readers) implies that AI writes anything for her, only that she uses it and has thoughts about how it might be used in the future. This thread selectively picks and incompletely translates quotes
1173
Wojtek Kopczuk @wwwojtekk.bsky.social · 08/05/2026
is there a way to have all the different sides of this issue lose?
130
Wojtek Kopczuk @wwwojtekk.bsky.social · 06/05/2026
DOGE, but this time definitely good.
080
Wojtek Kopczuk @wwwojtekk.bsky.social · 05/05/2026
Bipartisan view of the US government budget
2648
Wojtek Kopczuk @wwwojtekk.bsky.social · 05/05/2026
They also believe that half of the budget goes to military. Not much is left after that.
0243
Wojtek Kopczuk @wwwojtekk.bsky.social · 05/05/2026
Grisly, but you have to be impressed by crocodiles using drones
2676
Wojtek Kopczuk @wwwojtekk.bsky.social · 05/05/2026
Bill Gates would be among these 12 but he gave too much and is no longer on the list. It tells you something about the methodology
0151
Wojtek Kopczuk @wwwojtekk.bsky.social · 28/04/2026
Ok, the infantilization of college students has gone too far. Now there is a parents' union?
2363
Wojtek Kopczuk @wwwojtekk.bsky.social · 23/04/2026
I've known since 1973 that this would be about Marx
061
Wojtek Kopczuk @wwwojtekk.bsky.social · 16/04/2026
💔 Their friendship could survive only one Papal assault
1130
Wojtek Kopczuk @wwwojtekk.bsky.social · 10/04/2026
Weak. Fewer people, easier to take over than Greenland.
1140
Wojtek Kopczuk @wwwojtekk.bsky.social · 09/04/2026
It is a perfect airport for a layover if you are flying from New Zealand to South Africa.
0170
Wojtek Kopczuk @wwwojtekk.bsky.social · 29/03/2026
Halloween year round in National Parks
050
Wojtek Kopczuk @wwwojtekk.bsky.social · 25/03/2026
When archeologists decipher our records in 1000 years, they will find out that Big Pharma was the ruler who killed the most people, with Hitler, Stalin, Mao, Chuck Norris and Lenin distant also-runners
1421
Wojtek Kopczuk @wwwojtekk.bsky.social · 21/03/2026
This is how you implement "cap-and-trade" in practice, kids
0100
Wojtek Kopczuk @wwwojtekk.bsky.social · 21/03/2026
In the future when we look back, it will be clear that Musk and Trump were the two people most responsible for transition to EVs
2183
Wojtek Kopczuk @wwwojtekk.bsky.social · 11/03/2026
I might be in minority here, but the real problem here is that we do not have enough Grand Conspiracies and, thus, we cannot reliably study them empirically so that we have to rely on theory and anecdotes. Hopefully, one day, we'll have more data.
1464
Wojtek Kopczuk @wwwojtekk.bsky.social · 06/03/2026
The UI team even added an arrow there. Unreal
1160
Wojtek Kopczuk @wwwojtekk.bsky.social · 06/03/2026
I have to admit that Hormuz is a very clever design that keeps things interesting. Kudos to Slartibartfast. You can't convince me that it was an accident.
4674
Wojtek Kopczuk @wwwojtekk.bsky.social · 04/03/2026
Is this the first 5.16a?
061
Wojtek Kopczuk @wwwojtekk.bsky.social · 23/02/2026
Oh yes, all those important conversations taking place on YouTube, Instagram and TikTok
1111
Wojtek Kopczuk @wwwojtekk.bsky.social · 23/02/2026
media.tenor.com
a black and white photo of a man wearing a hat and a chain around his neck .
ALT: a black and white photo of a man wearing a hat and a chain around his neck .
040
Wojtek Kopczuk @wwwojtekk.bsky.social · 21/02/2026
That's unfair. It's well-known that five-year olds cannot control their tantrums
0150
Wojtek Kopczuk @wwwojtekk.bsky.social · 19/02/2026
I appreciate the throwback to the popular joke (but, really, the truth) under communism, but I am actually usually sure that corruption in this administration is true whether they deny or not
0132
Wojtek Kopczuk @wwwojtekk.bsky.social · 28/01/2026
So much to unpack
0180
Wojtek Kopczuk @wwwojtekk.bsky.social · 23/01/2026
I hope she stapled her paperwork before filing
160
Wojtek Kopczuk @wwwojtekk.bsky.social · 22/01/2026
The lawyer said with a straight face that it'd take an act of Congress to stop the president from sending military to deal with the Beatles
0151
Reposted by Wojtek Kopczuk
Marciano Siniscalchi @marciano.bsky.social · 22/01/2026
I'm teaching uncertainty in GE soon and I'm going to steal this thread
061
Wojtek Kopczuk @wwwojtekk.bsky.social · 22/01/2026
I'm disappointed but not surprised that referring to capitalism as gospel got no traction on Bluesky
2110
Wojtek Kopczuk @wwwojtekk.bsky.social · 22/01/2026
Protestantism started with a vicious attack on capitalism (selling indulgences), but it ended with accepting the gospel as its "ethic"
1122
Wojtek Kopczuk @wwwojtekk.bsky.social · 13/01/2026
The death toll is now higher than Tiananmen Square or October 7th and Iran is barely news. Not trending here, a bit more but also little on X, scroll down the feed to #9 on NYT
2225
Wojtek Kopczuk @wwwojtekk.bsky.social · 05/01/2026
I totally expected the attempts to seize private property, but seizing the CEA took me by surprise
270
Wojtek Kopczuk @wwwojtekk.bsky.social · 05/01/2026
Me, for perhaps a 1000th time in my NYC apartment: "Alexa, what's the weather like?" Newly LLM-trained Alexa: "Today in Ann Arbor it will be..." Me: "Why are you telling me about A2?" Alexa: "Our records show that you live in A2" It's been 24 years since I lived in Ann Arbor...
2191
Wojtek Kopczuk @wwwojtekk.bsky.social · 01/01/2026
I don't have five minutes to read it, but in my personal case I'm pretty sure that the biggest factor influencing it would be just watching it
160
Wojtek Kopczuk @wwwojtekk.bsky.social · 30/12/2025
My take on this is that doctors are usually not PhDs.
1130
Wojtek Kopczuk @wwwojtekk.bsky.social · 29/12/2025
Received on December 23rd. Luckily, it is a European publisher so "two working days" means it's due on January 15.
1350
Reposted by Wojtek Kopczuk
Elliott Collins @elliottcollins.bsky.social · 25/12/2025
His point was "some people will like using Twitter more than Bluesky because the range of topics on which Bsky will allow respectful disagreement is fairly narrow" and the fact that that, in itself, is not something you can say on Bluesky without getting this much vitriol sort of proves the point.
381
Wojtek Kopczuk @wwwojtekk.bsky.social · 25/12/2025
I've been told that the other site is toxic but this one is not
20412
Wojtek Kopczuk @wwwojtekk.bsky.social · 22/12/2025
This site doesn't have censorship, it has community-induced self-censorship.
2181
Wojtek Kopczuk @wwwojtekk.bsky.social · 21/12/2025
Wikipedia editors have grudges
1301
Wojtek Kopczuk @wwwojtekk.bsky.social · 21/12/2025
I did not know that the president owned an apartment in Ann Arbor
090
Wojtek Kopczuk @wwwojtekk.bsky.social · 14/12/2025
'My papers say what I have researched. And therefore neither I nor my papers have any more to say. I am a researcher, not a speaker. Do you hear me? Actually, if you're going to interview anyone, you can interview my papers. If you don't find an answer there, then that's your own fault.'
0140