Robert Duval Hernรกndez 's Avatar

Robert Duval Hernรกndez

@rduvalh.bsky.social

Economist @oucyprus, Research Fellow @iza.org Alumnus: @CornellEcon @CIDE_MX ๐Ÿ‡ฒ๐Ÿ‡ฝ๐Ÿ‡ญ๐Ÿ‡น๐Ÿ‡จ๐Ÿ‡พ Labor, Development, Growth Econ.

682 Followers  |  1,265 Following  |  137 Posts  |  Joined: 02.08.2023  |  1.771

Latest posts by rduvalh.bsky.social on Bluesky

Preview
Scientists hide messages in papers to game AI peer review Some studies containing instructions in white text or small font โ€” visible only to machines โ€” will be withdrawn from preprint servers.

It's official: we live in the stupidest timeline
"Nature has (...) found 18 preprint studies containing such hidden messages, (...) usually included as white text and sometimes in an extremely small font that would be invisible to a human but could be picked up as an instruction to an AI reviewer."

25.07.2025 08:41 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

A Nazi owns Twitter, right wing billionaires own the Wall Street Journal and the LA Times, and CBS is run by a right wing nepo baby who just fired one of the networkโ€™s biggest stars for criticizing Donald Trump. Hereโ€™s why America has a left-wing media bias problem.

18.07.2025 16:51 โ€” ๐Ÿ‘ 16521    ๐Ÿ” 4868    ๐Ÿ’ฌ 100    ๐Ÿ“Œ 103

Not really an overstatement to say that the test of a free society is whether or not comedians can make fun of the country's leader on TV without repurcussions.

18.07.2025 15:39 โ€” ๐Ÿ‘ 60533    ๐Ÿ” 14736    ๐Ÿ’ฌ 1253    ๐Ÿ“Œ 633
What is Scientific American?
YouTube video by Scientific American What is Scientific American?

We finally made it to Blueskyโ€”just a few billion years after the Big Bang, and only slightly late to the party โœจ๐ŸŒŒ

Weโ€™re sharing some of our best stories from the year so far to kick off our Bluesky journey!

14.07.2025 16:09 โ€” ๐Ÿ‘ 1377    ๐Ÿ” 286    ๐Ÿ’ฌ 47    ๐Ÿ“Œ 26

๐Ÿ˜ตโ€๐Ÿ’ซ

08.07.2025 20:08 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Allez les bleues

05.07.2025 19:55 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Oval-framed daguerreotype portrait of Frederick Douglass, a prominent 19th-century African American abolitionist, writer, and orator. He wears a dark jacket, patterned waistcoat, white shirt, and bow tie. His expression is serious and resolute, with his wavy hair parted to the side. The photograph reflects his dignity and strength as a leader in the fight against slavery.

Oval-framed daguerreotype portrait of Frederick Douglass, a prominent 19th-century African American abolitionist, writer, and orator. He wears a dark jacket, patterned waistcoat, white shirt, and bow tie. His expression is serious and resolute, with his wavy hair parted to the side. The photograph reflects his dignity and strength as a leader in the fight against slavery.

In July of 1852, Frederick Douglass delivered one of the greatest speeches in US history. Today itโ€™s often presented in abridged form, though, and skips what seems like a long-winded introduction. If you read the intro closely, however, thereโ€™s an ingenious structure. THREAD๐Ÿ‘‡๐Ÿฝ

04.07.2025 18:32 โ€” ๐Ÿ‘ 949    ๐Ÿ” 370    ๐Ÿ’ฌ 16    ๐Ÿ“Œ 41

This is what the times call for

28.06.2025 14:33 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
A.I. Is Homogenizing Our Thoughts Recent studies suggest that tools such as ChatGPT make our brains less active and our writing less original.

my @newyorker.com column this week goes in depth on how using AI makes us less original, unique, and creative as writers, thinkers, and communicators. Various new studies are proving that AI is a rampant force of homogenization: www.newyorker.com/culture/infi...

25.06.2025 15:42 โ€” ๐Ÿ‘ 393    ๐Ÿ” 148    ๐Ÿ’ฌ 18    ๐Ÿ“Œ 30
Post image

A survey of advances in modeling cultural transmission in economics and how these models differ conceptually from those employed in evolutionary anthropology, from @albertobisin.bsky.social and Thierry Verdier https://www.nber.org/papers/w33928

23.06.2025 20:00 โ€” ๐Ÿ‘ 15    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Chatbots โ€” LLMs โ€” do not know facts and are not designed to be able to accurately answer factual questions. They are designed to find and mimic patterns of words, probabilistically. When theyโ€™re โ€œrightโ€ itโ€™s because correct things are often written down, so those patterns are frequent. Thatโ€™s all.

19.06.2025 11:21 โ€” ๐Ÿ‘ 29338    ๐Ÿ” 8581    ๐Ÿ’ฌ 576    ๐Ÿ“Œ 700
Post image

Growth can go hand in hand with degrowth in material use as economies shift toward quality and services, rising living standards and clean growth are possible, from Philippe Aghion, Timo Boppart, Michael Peters, Matthew Schwartzman, and Fabrizio Zilibotti https://www.nber.org/papers/w33634

16.06.2025 17:00 โ€” ๐Ÿ‘ 18    ๐Ÿ” 11    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 3
Post image

Cato has published my comprehensive review of the ~240 Venezuelans the US government renditioned 2 months ago to Salvadorโ€™s notorious prison. We identified FIFTY who came legally, never violated any immigration law, but are imprisoned at the US governmentโ€™s request and at US taxpayer expense.

19.05.2025 16:05 โ€” ๐Ÿ‘ 11311    ๐Ÿ” 5480    ๐Ÿ’ฌ 261    ๐Ÿ“Œ 526
Mad Men meme of

Democratic politicians and consultants: Like my detailed policy proposal? Still upset about Joe Biden's age? When I used that word, did it lose you?

Swing voters: I don't think about you at all

Mad Men meme of Democratic politicians and consultants: Like my detailed policy proposal? Still upset about Joe Biden's age? When I used that word, did it lose you? Swing voters: I don't think about you at all

15.05.2025 02:28 โ€” ๐Ÿ‘ 679    ๐Ÿ” 95    ๐Ÿ’ฌ 16    ๐Ÿ“Œ 4

This is both ridiculous and very funny

14.05.2025 20:24 โ€” ๐Ÿ‘ 18    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

A new milestone for this "don't believe your lying eyes" era

14.05.2025 15:22 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Post image

This is a great article in the latest issue of the JEP for anyone teaching panel methods (any level). Love this history of economic terms and ideas feature. #Econsky

pubs.aeaweb.org/doi/pdfplus/...

10.05.2025 09:29 โ€” ๐Ÿ‘ 88    ๐Ÿ” 23    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 1

Regarding your last statement, I wonder, with a bit of dread, what will the returns to skills be when the measurement of the latter are muddled by AI

08.05.2025 12:51 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
World Central Kitchen | WCK Forced to Halt Cooking in Gaza as Supplies Run Out After serving more than 130 million total meals and 26 million loaves of bread over the past 18 months, World Central Kitchen no longer has the supplies to cook meals or bake bread in Gaza.

World Central Kitchen has run out of food to serve in Gaza. Its bakery ("recently the last working bakery in Gaza") is out of flour. There are 100,000+ tons of food in staging areas within driving distance of Gaza, and Israel refuses to let them in wck.org/news/gaza-up...

07.05.2025 19:13 โ€” ๐Ÿ‘ 4096    ๐Ÿ” 3373    ๐Ÿ’ฌ 145    ๐Ÿ“Œ 257
Post image

Opinion from the FT's Editorial Board: 'The US and European countries that tout Israel as an ally that shares their values have issued barely a word of condemnation. They should be ashamed of their silence, and stop enabling Netanyahu to act with impunity.' www.ft.com/content/f5fd...

07.05.2025 15:16 โ€” ๐Ÿ‘ 4184    ๐Ÿ” 1969    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 214
Preview
Research at risk: Life-saving heart pumps for babies | Cornell Chronicle After receiving a stop-work order from the federal government, the future of a device to help children with heart defects is uncertain.

One of grants frozen at Cornell: $6.7M (4 yrs) to develop heart pumps for babies born w/ heart defects.

It took decades of work to get to point of prepping device for in-human clinical trials. No private company could do this.

The cruelty of the Trump administration is heartbreaking. So to speak.

07.05.2025 11:56 โ€” ๐Ÿ‘ 3405    ๐Ÿ” 1791    ๐Ÿ’ฌ 90    ๐Ÿ“Œ 160

โ€œGenerators at Gazaโ€™s main desalination plant are producing potable water at only 10 percent of its usual capacity, she said, after Israel also cut off electricity..

The estimation is that 90 percent of the fuel that is in storage in Gaza today is inaccessible due to evacuation ordersโ€

04.05.2025 19:36 โ€” ๐Ÿ‘ 8    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1

Donald Trump spent $23M on golf (up to mid march).

Over 56 days, he spent $410k of our tax dollars each day at his own clubs.

That is one 3-year NSF grant per day.

Waste and abuse, my ass.

www.theguardian.com/commentisfre...

02.05.2025 11:12 โ€” ๐Ÿ‘ 1019    ๐Ÿ” 469    ๐Ÿ’ฌ 13    ๐Ÿ“Œ 13

We need more data janitors in the world. ๐Ÿงน
People whose focus is organizing, documenting, and wrangling data for other people. I would welcome the company. Itโ€™s not a glamorous job but itโ€™s really important and itโ€™s very needed.

29.04.2025 22:57 โ€” ๐Ÿ‘ 94    ๐Ÿ” 15    ๐Ÿ’ฌ 9    ๐Ÿ“Œ 1

Your kids get a max of two toys and then grow up to work in the same factory as their father and grandfather screwing in tiny screws. Itโ€™s called The American Dream.

30.04.2025 18:23 โ€” ๐Ÿ‘ 48439    ๐Ÿ” 8496    ๐Ÿ’ฌ 1947    ๐Ÿ“Œ 470
Preview
Gazans are again going hungry as Israelโ€™s total siege nears two months No food, fuel, aid or commercial goods have entered Gaza since March 2. Residents say they are surviving on one meal a day or less.

No food, fuel, aid or commercial goods have entered Gaza since March 2. Residents say they are surviving on one meal a day or less.

www.washingtonpost.com/world/2025/0...

30.04.2025 19:05 โ€” ๐Ÿ‘ 13    ๐Ÿ” 9    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 2
Graphic showing two Truth Social posts from Donald Trump, with the first (dated January 29, 2024) boasting about economic success and claiming โ€œTHIS IS TRUMPโ€™S STOCK MARKET, and the second (dated April 30, 2025) contradictorily claiming โ€œThis is Bidenโ€™s Stock Market, not Trumpโ€™sโ€ after this morningโ€™s GDP Q1 report shows the economy has contracted under Trump so far.

Graphic showing two Truth Social posts from Donald Trump, with the first (dated January 29, 2024) boasting about economic success and claiming โ€œTHIS IS TRUMPโ€™S STOCK MARKET, and the second (dated April 30, 2025) contradictorily claiming โ€œThis is Bidenโ€™s Stock Market, not Trumpโ€™sโ€ after this morningโ€™s GDP Q1 report shows the economy has contracted under Trump so far.

The Trump Playbook:
ย 
Take credit for the strong economy he inherited.โ€จCrash that economy with needless tariffs.โ€จBlame others for the mess he made.โ€จRepeat.

30.04.2025 16:50 โ€” ๐Ÿ‘ 989    ๐Ÿ” 318    ๐Ÿ’ฌ 50    ๐Ÿ“Œ 17

You should contact [replace with your name] to call him out on his/her lack of professionalism

26.04.2025 16:45 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
ยฟPor quรฉ (NO) penalizar las respuestas incorrectas en los exรกmenes tipo test? Porย Pedro Rey Bielย (@pedroreybiel), Marina Diez Rituerto, Javier Gardeazabal y Nagore Iriberri. El acceso al mercado laboral suele requerir pasar por una serie de procesos de selecciรณn diseรฑados pa...

ยฟPor quรฉ (NO) penalizar las respuestas incorrectas en los exรกmenes tipo test? nadaesgratis.es/pedro-rey-bi... Vรญa @nadaesgratis.bsky.social #Economรญa

25.04.2025 05:02 โ€” ๐Ÿ‘ 11    ๐Ÿ” 9    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 3

@rduvalh is following 20 prominent accounts