John Mullahy
@johnmullahy.bsky.social
UW-Madison, Univ. of Galway, NBER
C.V.: https://uwmadison.box.com/s/kkaquhtv5b2og4yo6md5p34f7q7gx1ju
Banner image: Free Clinic (detail), Jacob Lawrence, 1937
C.V.: https://uwmadison.box.com/s/kkaquhtv5b2og4yo6md5p34f7q7gx1ju
Banner image: Free Clinic (detail), Jacob Lawrence, 1937
George Stigler and Gary Becker, AER (1977): "De Gustibus Non Est Disputandum"
www.jstor.org/stable/1807222
www.jstor.org/stable/1807222
February 6, 2026 at 1:28 PM
George Stigler and Gary Becker, AER (1977): "De Gustibus Non Est Disputandum"
www.jstor.org/stable/1807222
www.jstor.org/stable/1807222
Adajar, Berndt, and Conti discuss commonalities of Simpson's diversity index with measures of concentration (e.g. HHI) familiar to economists.
www.nber.org/papers/w26512
www.nber.org/papers/w26512
February 5, 2026 at 1:36 PM
Adajar, Berndt, and Conti discuss commonalities of Simpson's diversity index with measures of concentration (e.g. HHI) familiar to economists.
www.nber.org/papers/w26512
www.nber.org/papers/w26512
Simpson published this letter in Nature in 1949.
February 5, 2026 at 1:36 PM
Simpson published this letter in Nature in 1949.
Icarus's contrail
February 4, 2026 at 1:27 PM
Icarus's contrail
The Law of Large Conferences: When teams can be in 10th place and still have winning records.
February 1, 2026 at 2:24 PM
The Law of Large Conferences: When teams can be in 10th place and still have winning records.
January 31, 2026 at 1:42 PM
Principles? Principles?
January 31, 2026 at 1:09 PM
Principles? Principles?
America 2026, summarized in one photo...
January 28, 2026 at 1:56 PM
America 2026, summarized in one photo...
What would happen in the unlikely event that a Trump Administration official actually told the truth about something truly important?
www.gutenberg.org/files/19994/...
www.gutenberg.org/files/19994/...
January 27, 2026 at 8:54 PM
What would happen in the unlikely event that a Trump Administration official actually told the truth about something truly important?
www.gutenberg.org/files/19994/...
www.gutenberg.org/files/19994/...
January 26, 2026 at 4:02 PM
Alaska, Hawaii, and Greenland not shown.
January 24, 2026 at 1:08 PM
Alaska, Hawaii, and Greenland not shown.
January 24, 2026 at 12:51 PM
From my cold, dead hands...
January 23, 2026 at 6:45 PM
From my cold, dead hands...
On the plus side the queue at our local ice cream shop will likely be relatively short.
January 23, 2026 at 1:47 PM
On the plus side the queue at our local ice cream shop will likely be relatively short.
Join us in Milan this summer.
January 23, 2026 at 1:41 PM
Join us in Milan this summer.
Jawdropping juxtaposition
January 22, 2026 at 4:31 PM
Jawdropping juxtaposition
More on Stella Cunliffe
rss.onlinelibrary.wiley.com/doi/full/10....
rss.onlinelibrary.wiley.com/doi/full/10....
January 20, 2026 at 9:29 PM
More on Stella Cunliffe
rss.onlinelibrary.wiley.com/doi/full/10....
rss.onlinelibrary.wiley.com/doi/full/10....
January 20, 2026 at 2:58 PM
"These cases show that investor ownership – and its consequences for patients and health care workers – need not be met with passive acceptance."
www.healthaffairs.org/content/fore...
www.healthaffairs.org/content/fore...
January 19, 2026 at 6:08 PM
"These cases show that investor ownership – and its consequences for patients and health care workers – need not be met with passive acceptance."
www.healthaffairs.org/content/fore...
www.healthaffairs.org/content/fore...
I wonder whether Stephen Miller can get past this verification.
January 19, 2026 at 5:37 PM
I wonder whether Stephen Miller can get past this verification.
...and a Trump-centric projection
January 19, 2026 at 3:27 PM
...and a Trump-centric projection
A Greenland-centric projection, FWIW
January 19, 2026 at 2:53 PM
A Greenland-centric projection, FWIW
If you've not experienced it this is how a wind chill of -26F looks.
January 19, 2026 at 1:54 PM
If you've not experienced it this is how a wind chill of -26F looks.