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Dina D. Pomeranz ๐ŸŸฃ Profile
Dina D. Pomeranz ๐ŸŸฃ

@DinaPomeranz

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Econ prof @econ_uzh , formerly @HarvardHBS . Board @EvidenceAction , @HelvetasCH , IIPF. Co-founder @gain_network_ . Affiliate @JPAL , @cepr_org , @CESifoNetwork .

Zurich
Joined July 2009
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@DinaPomeranz
Dina D. Pomeranz ๐ŸŸฃ
4 months
Regular reminder that extreme poverty has fallen hugely in recent decades and has never been this low in human history! Even after the short increase due to Covid, the improving trend recovered quickly:
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@DinaPomeranz
Dina D. Pomeranz ๐ŸŸฃ
5 years
When infighting distracts us from seeing the big picture: Via @konradweber
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Dina D. Pomeranz ๐ŸŸฃ
4 years
The best predictor of entrepreneurship is rich parents
@mykola
Myk - ๐Ÿ‡บ๐Ÿ‡ฆ๐ŸŒป๐Ÿ‡ต๐Ÿ‡ธ๐Ÿ‰ - Here To Help
4 years
Please quote this tweet with a thing that everyone in your field knows and nobody in your industry talks about because it would lead to general chaos.
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@DinaPomeranz
Dina D. Pomeranz ๐ŸŸฃ
3 months
A strong political divide is emerging between young men and women in many countries:
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Dina D. Pomeranz ๐ŸŸฃ
6 years
There's some discussion on Twitter about male academics being unsure whether to mentor women because they're unclear what behavior is ok. Let me try to break it down:
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@DinaPomeranz
Dina D. Pomeranz ๐ŸŸฃ
6 years
Als jรผdische Nachfahrin von Holocaust-รœberlebenden hรคtte ich nie gedacht, dass wir solche Plakate mal wieder sehen wรผrden. "Wehret den Anfรคngen" wurde uns beigebracht, und alle nickten. Was tun wir jetzt?
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Dina D. Pomeranz ๐ŸŸฃ
1 year
There is a persistent myth of "the happy poor". It's just that: a myth. While happiness and life satisfaction are of course driven by many other things as well, people in poor countries are on average much more unhappy. Economic growth matters.
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Dina D. Pomeranz ๐ŸŸฃ
7 months
What many people don't know: recent decades have seen incredible reductions in poverty. The poverty rate has *never before* been this low in human history. What new data is now revealing: after the setback from Covid, poverty reduction now continues!
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Dina D. Pomeranz ๐ŸŸฃ
6 years
Nike is reading the signs of the time. They are no charity organization. They are investing in a brand that reflects and speaks to the values of the generation of the future. That this is their analysis of the market makes me hopeful. @Kaepernick7
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Dina D. Pomeranz ๐ŸŸฃ
6 months
It's possible to at the same time -condemn Hamas -stand against antisemitism -stand against islamophobia -support Israel's right to exist -oppose Israel's policies -feel solidarity with Palestinian victims -feel solidarity with Israeli victims Why is this hard to understand?
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Dina D. Pomeranz ๐ŸŸฃ
5 years
Amazing animation by @countcarbon showing the demographic transition over the last 150 years! From a world of high fertility and high child mortality to low fertility with few children dying:
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@DinaPomeranz
Dina D. Pomeranz ๐ŸŸฃ
4 years
Economics โ‰  business Business leader โ‰  economist Economics โ‰  business Business leader โ‰  economist Economics โ‰  business Business leader โ‰  economist Economics โ‰  business Business leader โ‰  economist Economics โ‰  business Business leader โ‰  economist Economics โ‰  business
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@DinaPomeranz
Dina D. Pomeranz ๐ŸŸฃ
4 years
The breathtaking decline in child mortality across the world, 1900-2016. By @toddrjones
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@DinaPomeranz
Dina D. Pomeranz ๐ŸŸฃ
7 years
Child mortality has fallen so much that the global rate today is as low as it was in the richest countries in 1960:
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Dina D. Pomeranz ๐ŸŸฃ
6 years
This figure is quite amazing. Never ever before has the world changed as it has from 1990 to 2015. #mindboggling Ht @bill_easterly
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Dina D. Pomeranz ๐ŸŸฃ
6 years
Did you know? Every day: - The number of people around the world living in extreme poverty (less than about $2 a day) goes down by 217,000. - 325,000 people gain access to electricity. - 300,000 people gain access to clean drinking water.
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Dina D. Pomeranz ๐ŸŸฃ
5 years
Did you know? -Global rates of extreme poverty are falling for any poverty line we choose -Global income inequality is falling -World median income almost doubled from 2003 to 2013 -Income inequality within countries is constant on average (up in some countries, down in others)
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Dina D. Pomeranz ๐ŸŸฃ
5 years
It's grad school application season. If you're applying from a lower income country or family, here's an important piece of information that many don't know: Most US schools will waive the application fees for you if you cannot afford them! Just email the school and ask for it.
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Dina D. Pomeranz ๐ŸŸฃ
5 years
Very cool! A โ€œBar Chart Raceโ€ showing the changing ranks of the 10 biggest cities in the world since 1500. By @jburnmurdoch
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Dina D. Pomeranz ๐ŸŸฃ
3 years
This is a nice way to display Covid infections by vaccination status. Hopefully other outlets will follow. The difference in hospitalizations is even larger, since those who get infected despite the vaccine are much less likely to develop a severe case. Ht @EricTopol
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Dina D. Pomeranz ๐ŸŸฃ
2 years
A person in Ghana consumes, on average, less energy per year than a refrigerator. A person in Ethiopia obly 1/5 as much. It is morally wrong and practically ineffective to try to address the climate crisis by denying the poorest more access to energy
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Dina D. Pomeranz ๐ŸŸฃ
2 years
Two facts many people don't know: 1) The global median income has doubled in 17 years from 2000 to 2017. A stunningly rapid progress the world has *never* seen before. (Adjusted for prices, so not due to inflation) 2) Still half the people in the world have less than $7 per day
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Dina D. Pomeranz ๐ŸŸฃ
5 years
People have a very warped sense of what personal actions help to reduce CO2 emissions. Highly over-estimated effectiveness: - No more plastic bags - Regional/seasonal food Highly underestimated: - No more meat
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Dina D. Pomeranz ๐ŸŸฃ
4 years
Nice analogy
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Dina D. Pomeranz ๐ŸŸฃ
6 years
Tariffs on imports are taxes
@Mantia
Louie Mantia, Jr.
6 years
Whatโ€˜s something that seems obvious within your profession, but the general public seems to misunderstand?
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Dina D. Pomeranz ๐ŸŸฃ
4 years
0. Be born to rich parents
@AskCoachKev
Coach Kev - Belly Fat Pro
4 years
How to behave like the 1%: 1. Spend time with impressive people 2. Detach emotions from business 3. Be efficient with your time 4. Form your own opinions 5. See fear as opportunity 6. Know how to commit 7. Worry about yourself 8. Value education 9. Embrace failure
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Dina D. Pomeranz ๐ŸŸฃ
8 years
I try not to tweet about US election stuff, but amid the discussions about primary rules, I found this interesting:
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Dina D. Pomeranz ๐ŸŸฃ
2 years
Did you know? After millennia of agricultural expansion, the world has passed โ€˜peak agricultural landโ€™. The world produces more food than ever, but the amount of land we use is now falling:
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Dina D. Pomeranz ๐ŸŸฃ
6 months
Finance vs political economy
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Dina D. Pomeranz ๐ŸŸฃ
1 year
How economics has changed through the decades since the 1950s, as seen in the paper titles of the economics journals AER, JPE and QJE. Paper by @hugomoises and Brice: Ht @DurRobert
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Dina D. Pomeranz ๐ŸŸฃ
2 years
Impressive visualization of geographical inequality. France (population 65 million) has a similar GDP as all of Africa combined (population 1.4 billion), Switzerland similar to all of Central America and the Caribbean:
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Dina D. Pomeranz ๐ŸŸฃ
3 years
An Excel error led to some people in the UK not being contacted by contact tracers. This allowed researchers to analyze the impact of contact tracing, by comparing places where this happened to the rest. 1500 more people died! -> Contact tracing has a large effect.
@emollick
Ethan Mollick
3 years
Also an Excel error cost led to an estimated 1,500 deaths in the UK last year. The UK COVID contact tracing effort saved to an old Excel file format (.XLS) rather than the new one (.XLSX) & smaller row limits resulted in names being dropped. They were never contacted by tracers.
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Dina D. Pomeranz ๐ŸŸฃ
5 years
PSA: Your worth as a human being is not your publications, not your income, not your career trajectory or prizes won. If it starts to feel that way, take some time to spend with people who care about none of these things.
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@DinaPomeranz
Dina D. Pomeranz ๐ŸŸฃ
4 years
Something cute for this morning
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Dina D. Pomeranz ๐ŸŸฃ
3 years
Cover of @derspiegel , February 2017 vs today:
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@DinaPomeranz
Dina D. Pomeranz ๐ŸŸฃ
7 years
Study found Twitter profiles of white men with high number of followers were most effective in reducing racist online harassment.
@David_Moscrop
David Moscrop
7 years
This is interesting: an experiment on reducing racist harassment on Twitter.
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Dina D. Pomeranz ๐ŸŸฃ
5 years
For all PhD students feeling desperate struggling with a first paper, this is how Esther Duflo felt:
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Dina D. Pomeranz ๐ŸŸฃ
3 years
Rare to find an issue with so much agreement among economists: The benefits to US, Canada, Europe, Japan and other rich countries of paying for 12 billion doses of COVID vaccine and giving them for free to the rest of the world are greater than the cost.
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Dina D. Pomeranz ๐ŸŸฃ
4 years
Are macroeconomics and the rest of economics two separate disciplines? The image of the Twitter networks may suggest so:
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Dina D. Pomeranz ๐ŸŸฃ
7 years
Swiss newspaper cartoonists aren't very politically correct
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Dina D. Pomeranz ๐ŸŸฃ
5 years
At a recent professional event (outside academia): - One man: "It's so hard to get women for senior positions because they lack confidence." - Another, after I made a point forcefully & asked he let me finish when he interrupted: "Wow, you're quite emotional." #WomenLearnToShutUp
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Dina D. Pomeranz ๐ŸŸฃ
5 years
What many women hear:
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Dina D. Pomeranz ๐ŸŸฃ
6 years
Correlation vs causation. #Machinelearning ;)
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Dina D. Pomeranz ๐ŸŸฃ
4 years
Corona-Economics: We are not in a recession now because the economy is struggling. We are artificially freezing parts of the economy as a medical intervention to slow down the virus. That is a good thing, and economic policy can mitigate the side effects of this treatment: 1/2
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Dina D. Pomeranz ๐ŸŸฃ
4 years
Swiss voters today decided by significant margins to - Introduce 2 weeks paternity leave - Reject a proposal to limit immigration from the EU - Reject family tax cuts that would have benefitted mostly the rich (Switzerland votes on issues several times a year) #DirectDemocracy
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@DinaPomeranz
Dina D. Pomeranz ๐ŸŸฃ
3 years
Excess mortality during Covid compared to usual mortality: Peru 153% Ecuador 80% Mexico 61% Brazil 40% Russia 28% Chile 27% US 22% Italy 19% UK 18% Swiss 13% NL, France 12% Sweden 10% Germany, Hong Kong, Costa Rica 4% Denmark, Japan, Uruguay and 16 others: none Ht @SDullien
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Dina D. Pomeranz ๐ŸŸฃ
2 months
Why it matters much more what you eat than where it's from: transportation makes up a tiny share of greenhouse gas emissions for most products
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Dina D. Pomeranz ๐ŸŸฃ
7 years
Same means, standard deviations and correlation! by @JustinMatejka & Fitzmaurice
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Dina D. Pomeranz ๐ŸŸฃ
2 years
Hier sind die "child penalties" von Einkommen von Mรผttern fรผr verschiedene Lรคnder: Wieviel weniger Frauen nach der Geburt eines Kinders lรคngerfristig verdienen. Dรคnemark 21% Schweden 26% USA 31% UK 44% ร–sterreich 51% Deutschland 61% Schweiz 68% (!)
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Dina D. Pomeranz ๐ŸŸฃ
4 years
Unpopular opinion: I think most people who claim to actually study for 80 hours a week are likely deluding themselves. Human brains usually don't work that way. People probably aren't tracking how much time of focused work they really do. Don't let such talk freak you out.
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Dina D. Pomeranz ๐ŸŸฃ
4 years
Successful people tend to underestimate the amount of luck involved in getting them to where they are. If things are going well for you professionally or financially, beware.
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Dina D. Pomeranz ๐ŸŸฃ
6 years
Today we had a meeting with PhD students about stress management. Here are some of the things that came up. What else do others find helpful?
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Dina D. Pomeranz ๐ŸŸฃ
6 years
If the world continues its reduction of extreme poverty at the current rate, we could see an end to the most extreme form of poverty (less than $2 a day) in the next 20 years. 100 years ago, 80% of human beings lived below that poverty line. (This is adjusted for prices.)
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Dina D. Pomeranz ๐ŸŸฃ
3 years
Food for thought
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Dina D. Pomeranz ๐ŸŸฃ
3 years
๐Ÿ‘๐Ÿคฃ
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Dina D. Pomeranz ๐ŸŸฃ
3 years
81% of ocean plastics come from Asian rivers. 0.6% from Europe. Reducing plastic straws in Europe will not save the oceans. Measures need to be smart and targeted.
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@OurWorldInData
Our World in Data
3 years
If we want to end the pollution of the oceans with plastic, we need to understand where the plastic comes from. @_HannahRitchie recently answered this question here on Our World in Data:
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Dina D. Pomeranz ๐ŸŸฃ
1 year
The world has witnessed incredible poverty reduction in recent decades. *Never* in human history a smaller share of the population lived with less than the equivalent of $2.15 a day. In 1820 around 80% lived in extreme poverty. Today less than 10%.
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Dina D. Pomeranz ๐ŸŸฃ
2 years
Carbon neocolonialism. Ht @toddjmoss
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Dina D. Pomeranz ๐ŸŸฃ
4 months
US border agent: What are you doing in Boston? Me: I'm working on my PhD BA: Wow, you work!? But you are on a student visa. That is illegal! Please go to the special inspections room over there... #reallyhappened
@josh_t_dean
Josh Dean
4 months
Border agent: why were you in Kenya? Me: I was going research for my PhD in economics BA: What is your research about? Me: How noise affects peopleโ€™s productivity BA: How is that economics? #reallyhappened
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Dina D. Pomeranz ๐ŸŸฃ
4 years
Food for thought on a Saturday morning
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Dina D. Pomeranz ๐ŸŸฃ
5 years
Economics job market Via @lfaliaj
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Dina D. Pomeranz ๐ŸŸฃ
6 years
. @ezraklein wonders on his show today whether there are any people out there for whom Twitter brings out the best in them. Since for me, the answer is an emphatic "yes!", I thought I'd share some practices that might potentially contribute to that. 1/n
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Dina D. Pomeranz ๐ŸŸฃ
5 years
Economists, are you teaching about the impacts of minimum wages? Then you might be interested in adding this excellent empirical paper. Contrary to what many of us were taught based on theoretical predictions, there seems to relatively little negative impact on employment.
@arindube
Arin Dube
5 years
Pleased to announce that our paper quantifying the overall effect of US minimum wages on low-wage jobs is now forthcoming at the Quarterly Journal of Economics. Here's the current version:
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Dina D. Pomeranz ๐ŸŸฃ
3 years
Reviewing a paper about a developing country? Don't be the Referee 2 who's main comment is "How externally valid is this setting?" Research about low-income countries is already highly under-represented. Don't make it harder by thinking it's weird just because you don't know it.
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Dina D. Pomeranz ๐ŸŸฃ
3 years
My two cents FWIW: Having a field called "development economics" makes no sense. It is essentially all fields of economics related to the 84% of people in the world who don't live in high-income countries. It is good to see it gradually absorbed into the other fields of econ.
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Dina D. Pomeranz ๐ŸŸฃ
2 years
CEO Lunch at the Munic Security Conference 2022. Via @SawsanChebli
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Dina D. Pomeranz ๐ŸŸฃ
4 years
Most research is about rich countries, even though 76% of the world's population live in middle-income and 9% in low-income countries. This imbalance has important consequences for what tools, products and policies are available to decision-makers in the South.
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Dina D. Pomeranz ๐ŸŸฃ
5 years
Whatever happened to the hole in the ozone layer? Most countries in the world came together in a treaty, and humanity cut emissions by over 75%. As a result, the hole stopped growing in the 1990s and recently started to shrink again:
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Dina D. Pomeranz ๐ŸŸฃ
5 years
Good morning world in 2019! Did you know? Never before in history has the human race been as rich, healthy, long-living and educated as today! To see more details on the ways humanity has changed, check out the many topics on
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Dina D. Pomeranz ๐ŸŸฃ
8 years
Amazing how much human condition is improving in our generation! Infant & maternal mortality fell to half since 1990
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Dina D. Pomeranz ๐ŸŸฃ
1 year
It's called economic growth :) Thanks to growth, people in rich countries no longer need to work 65 hours a week, as they did 150 years ago, and at the same time they are richer. Leisure is a what economists call a "normal good": as we get richer, we consume more of it.
@Schuldensuehner
Holger Zschaepitz
1 year
Germans have gone from being the most industrious people to the laziest: Hours per worker in Germany halved from 1900 to 2000. The downtrend has been remarkably stable: for at least 150yrs, w/exception of World War II, every generation has worked fewer hoursย than its predecessor.
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Dina D. Pomeranz ๐ŸŸฃ
8 years
. @nytimes is more likely to report on terrorism attack the higher the GDP where it happened
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Dina D. Pomeranz ๐ŸŸฃ
7 years
Randomized experiment with 20,000 local public officials confirms everyday discrimination against Blacks across US:
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Dina D. Pomeranz ๐ŸŸฃ
2 years
This is what the current President of the larger chamber of the Swiss Parliament looks like (akin to the US Speaker of the House of Representatives). Kind of cool :) And you can run into her on the street. Probably unthinkable in the US and many other countries. #Democracy
@achyuta_samanta
Achyuta Samanta
2 years
Met Ms. @KaelinIrene , President of the National Council, Switzerland, Green National Councilor and President of ArbeitAargau that espouses the cause of going green because we only have one earth.
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Dina D. Pomeranz ๐ŸŸฃ
3 years
Unpopular opinion: econ has too many awards and prizes. We're a social science, not a sport.
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Dina D. Pomeranz ๐ŸŸฃ
4 years
Christmas wish: an econ online course that teaches new developments of estimation in empirical micro, in an applied way, for people who have already completed their PhD but want to keep up with latest advances. E.g. one lecture a month, with exercises. #EconTwitter
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Dina D. Pomeranz ๐ŸŸฃ
2 months
Building more housing leads to lower rents. One reason so many people get confused about this is that they look only at the rent of the new units. To understand the impact, it is key to take into account how the increase of housing supply affects the other rents.
@JeremiahDJohns
Jeremiah Johnson ๐ŸŒ
2 months
Every piece of info we have suggests that building housing reduces rents quick thread:
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Dina D. Pomeranz ๐ŸŸฃ
2 years
Hilfreiche Erinnerung, wie man korrekt vergleicht, wie stark geimpfte vs ungeimpfte Leute betroffen sind: #Pr รคvalenzfehler
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Dina D. Pomeranz ๐ŸŸฃ
4 years
Terms that are often used as synonyms but are not: The economy โ‰  business Market โ‰  laissez-faire Business leader โ‰  economist
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Dina D. Pomeranz ๐ŸŸฃ
6 years
Most of the increase in the global population is currently happening due to growing life expectancy, rather than growing number of children:
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Dina D. Pomeranz ๐ŸŸฃ
4 years
New paper by economist @MNDjourel showing with rigorous evidence how language can matter: When the Associated Press stopped using the term "illegal immigrant", there was a causal effect on readers' views on immigration policy. ht @ellliottt
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Dina D. Pomeranz ๐ŸŸฃ
6 months
I love Israel, I have family there. But sadly, the current government is right wing extremist. A government that speaks like that is dangerous. It is not only dangerous to the Palestinian people, but also for the future of Jewish Israelis and everyone who lives there.
@disclosetv
Disclose.tv
7 months
NOW - Netanyahu: "We are the people of the light, they are the people of darkness... we shall realize the prophecy of Isaiah."
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Dina D. Pomeranz ๐ŸŸฃ
4 years
One of the more shocking realizations of this pandemic to me is how many key decision makers have difficulty with basic concepts of statistics & data interpretation. Across all political parties & sectors of the economy, including finance. Big obstacle to good decision making.
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Dina D. Pomeranz ๐ŸŸฃ
6 years
I'm going to live tweet Esther Duflo's Master Lecture at the NBER Development Economics meeting on "Machinistas meet Randomistas: Some useful ML tools for RCT researchers"
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Dina D. Pomeranz ๐ŸŸฃ
4 years
Wow, this graphic showing wealth to scale and in relation to other things blew me away. I study such things for a living and still found it very instructive. Keep scrolling to the right. Ht @j_theriault & @NeilLewisJr
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Dina D. Pomeranz ๐ŸŸฃ
7 months
The share of humans living in the worst form of poverty (less $2.15 dollars a day) has fallen by 3/4 since 1990(!) The share of people with less than $3.65 has fallen by half. The share with incomes over $10/day grew from 25% to over 40%. (All of these are adjusted for prices)
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Dina D. Pomeranz ๐ŸŸฃ
3 years
University students from low- and middle-income countries: This semester many courses take place online. Several professors in Europe & North America have opened their class for international students to participate remotely! See full list & apply here:
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Dina D. Pomeranz ๐ŸŸฃ
5 years
Unpopular opinion: selecting job candidates based on extent to which they follow etiquette, etc. can often end up selecting for class and having unintended discriminatory effects.
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Dina D. Pomeranz ๐ŸŸฃ
4 years
In 1950, the US had the highest GDP per person in the world. Today, the *worldwide* GDP per person is as high as it was in the US back then (adjusted for changes in prices). Global living standards have grown tremendously. Ht @frank_pinter @MaxCRoser
@DinaPomeranz
Dina D. Pomeranz ๐ŸŸฃ
4 years
GDP per person, 1950-2016 (adjusted for price changes): - 9 countries saw a reduction - 9 countries saw over 15-fold increase - DR Congo: fell by half - World: grew 4.4-fold - Botswana, Panana, Portugal: 9-fold - China: 16-fold - Taiwan, SKorea: >30-fold
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Dina D. Pomeranz ๐ŸŸฃ
7 years
Today, 10 of every 100 people live in extreme poverty. Back in 1820 it was 94 out of every 100! By @MaxCRoser
@MaxCRoser
Max Roser
7 years
I have written a short history of how living conditions have changed globally over the last two centuries:
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Dina D. Pomeranz ๐ŸŸฃ
4 years
This should go without saying but PLEASE DO NOT PUBLICLY TRASH A PHD STUDENT'S JOB MARKET PAPER WITHOUT READING IT FIRST! Wow. People. Please.
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Dina D. Pomeranz ๐ŸŸฃ
6 years
Inequality can increase and poverty can fall at the same time.
@Mantia
Louie Mantia, Jr.
6 years
Whatโ€˜s something that seems obvious within your profession, but the general public seems to misunderstand?
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Dina D. Pomeranz ๐ŸŸฃ
4 years
For the New Year, I'll share a few trends of the past decade. Since for many longer-term trends, data is not yet available until 2019, I will post the last available 10 years. Happy New Year!
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Dina D. Pomeranz ๐ŸŸฃ
4 years
In recent days, since I tweeted more about #BlackLivesMatter & the need to address racism in all our institutions, I notice that more people than usual unfollow me. I understand the reflex to look away. These are uncomfortable topics. But we white people need to stop looking away
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Dina D. Pomeranz ๐ŸŸฃ
6 years
If a study doesn't replicate in a new context, that doesn't imply researchers of the original study did something wrong or that science is a bunch of crap. It doesn't even necessarily mean the replication is better than the original. It means science is constant work in progress.
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Dina D. Pomeranz ๐ŸŸฃ
5 years
Things we should teach to prepare people for academic careers, but typically don't: - Management skills (hiring, giving feedback, conflict resolution, etc.) - How to write effective referee reports - How to apply for grants - How to choose co-authors - Time management - Self care
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Dina D. Pomeranz ๐ŸŸฃ
5 years
Income inequality within countries has *not* risen overall. Over the last 25 years, inequality has gone up in some countries and has fallen in others. The average Gini measure of inequality fell somewhat, from 39.6 to 38.6.
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Dina D. Pomeranz ๐ŸŸฃ
6 years
In honor of American Thanksgiving this week, here's a thread of a few global developments I am thankful for:
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Dina D. Pomeranz ๐ŸŸฃ
5 years
Whenever someone claims to know the single cause of a complex societal problem and an obvious solution, I tend to lose my motivation to read further...
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Dina D. Pomeranz ๐ŸŸฃ
3 years
Cool! @TheEconomist invites suggestions to cover research papers:
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