Mauricio Drelichman's Avatar

Mauricio Drelichman

@mdrelichman.bsky.social

Professor at UBC VSE. Economic History, photography, food.

2,372 Followers  |  342 Following  |  588 Posts  |  Joined: 04.07.2023
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Posts by Mauricio Drelichman (@mdrelichman.bsky.social)

Sunrise and sunset are different things than it being light and dark. They used to teach that in school.

03.03.2026 15:33 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Your statement was that kids go home in the dark at present. They don't.

Goalpost shifting aside, I don't see how your response changes things for the better. Under standard time, at 8 am in December, there is already natural light. When that becomes the equivalent of 7 am, there won't be.

03.03.2026 07:57 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I suspect that a good half of the support for permanent DST comes from people that do not understand how the distribution of daylight will actually change. That 90% approval (from a question in which permanent standard time was not an option) will tank hard in the winter of 2027.

03.03.2026 06:00 β€” πŸ‘ 7    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

And a darker morning commute is exactly what will now happen for a good four months of the year.

03.03.2026 05:58 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

In Western BC, Permanent Daylight Savings Time means that kids will now go to school in the dark in winter.

03.03.2026 05:57 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

The issue is that they don't go home from school in the dark with Standard Time. School is 9-3, so under Standard Time there's daylight at both ends. Under Daylight Time there isn't, and the morning walk in the dark will take place at the same time of the morning commute. Dangerous all around.

03.03.2026 05:56 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
A Capital’s Capital: Two Hundred Years of Wealth and Inequality in Paris by Gilles Postel-Vinay and Jean-Laurent Rosenthal

A Capital’s Capital: Two Hundred Years of Wealth and Inequality in Paris by Gilles Postel-Vinay and Jean-Laurent Rosenthal

In A Capital’s Capital, Gilles Postel-Vinay and Jean-Laurent Rosenthal map the fluctuations in wealth and its distribution in Paris between 1807 and 1977.

Now available (31 March UK pub).

Check out a free preview: press.princeton.edu/books/hardco...

#Economics #History

02.03.2026 21:04 β€” πŸ‘ 12    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Would anybody like to read one of my long threads about a 2.5bn year old rock, bacteria that could produce oxygen but not consume it, and tank production in wwii

23.02.2026 06:14 β€” πŸ‘ 478    πŸ” 126    πŸ’¬ 20    πŸ“Œ 45

I am delighted that this great conversation with Ran Abramitzky and Leah Boustan has posted. Their extraordinary work on intergenerational mobility and immigrants speaks to essential dimensions of the extent of equality of opportunity and of the process of assimilation.

12.02.2026 17:33 β€” πŸ‘ 9    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0
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Everyone working in development economics should read this chapter.

They provide evidence that what works in development is less about finding universally good levers and more about designing interventions compatible with locally embedded social structures.

www.nber.org/papers/w3481...

10.02.2026 02:11 β€” πŸ‘ 63    πŸ” 17    πŸ’¬ 3    πŸ“Œ 3

Fond memories! They have the entire Doria family archive at the university. It was donated by Giorgio Doria, noted economic historian and descendant of the famous Dorias of old.

05.02.2026 03:31 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
University of British Columbia crowned National Champion of The Governor’s Challenge The Bank of Canada is pleased to announce that the University of British Columbia has won the eleventh annual Governor’s Challenge, a national student competition in which teams simulate the role of a...

Congrats! www.bankofcanada.ca/2026/02/univ...

02.02.2026 21:49 β€” πŸ‘ 12    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

Were you planning to get any actual work done today? I'm here to save you from such a dreary fate.

01.02.2026 17:19 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 1

That distinction goes to Boston Pizza and their signature β€œdrywall” crust.

23.01.2026 20:42 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Nah. Pretty big downgrade from its first incarnation in the old SUB.

23.01.2026 05:19 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Gary Becker feels you, guys

12.01.2026 17:29 β€” πŸ‘ 23    πŸ” 5    πŸ’¬ 1    πŸ“Œ 2
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We’re proud to congratulate Dr. Raffaele Saggio, and coauthors, on his recent receipt of the 2025 Aigner Award from the Journal of Econometrics.

Read about the award: economics.ubc.ca/news/ubc-pro...

07.01.2026 00:38 β€” πŸ‘ 6    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

How is that an effective barrier?

03.01.2026 05:26 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Es que es correcto sin tilde…

27.12.2025 21:45 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Is this meant to be funny? Because it isn’t.

12.12.2025 20:20 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
<em>The Economic History Review</em> | EHS Journal | Wiley Online Library Click on the title to browse this issue

The Economic History Review has published a virtual issue collecting the contributions of 2025 Nobel Laureate Joel Mokyr in the journal. I had the privilege of writing the introductory essay. You can read it here, together with Joel's articles and reviews.
onlinelibrary.wiley.com/doi/toc/10.1...

11.12.2025 22:52 β€” πŸ‘ 43    πŸ” 22    πŸ’¬ 0    πŸ“Œ 1

Congratulations, Jared!

28.11.2025 20:15 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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How public education transforms opportunity: Evidence from the 1870 Education Act The 1870 Education Act demonstrates how targeted public investment in education can help narrow the gap in opportunity between rich and poor children.

A @voxdev.bsky.social column on the impact of public education through the lens of economic history, by my (former) student Ben Milner @benjaminlm.bsky.social.

voxdev.org/topic/educat...

24.11.2025 18:16 β€” πŸ‘ 12    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0

Until last year, I used to feed my exam questions to ChatGPT, paste them into the actual exam, and ask students to grade the answers. ChatGPT used to get scores of 20-40% on my 3rd year econ history exam. These days it routinely hits 80%, provided you feed it the reading list first.

24.11.2025 05:40 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

That’s IrΓ¨ne Joliot-Curie, Marie’s daughter. Three Nobel prizes between the two of them, five in total in the family.

21.11.2025 21:09 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

It happens at about age 13.

19.11.2025 05:32 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

All time favorite email from an undergraduate student:

β€œHey dude, what’s my grade?”

18.11.2025 06:02 β€” πŸ‘ 12    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

And a good four days it took...

15.11.2025 17:48 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Well, update. This morning it's back to the old Sequoia snappiness. Looks like I needed to rant about it on Bluesky for it to get its act together!

15.11.2025 16:10 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

It's every little thing. Send a text message, it takes a split second to actually show up on the feed. Open a folder, it takes half a second to populate the icons. Just a consistent short lag to the entire interface.

15.11.2025 06:29 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0