Elea McDonnell Feit
@eleafeit.bsky.social
Professor of Marketing at Drexel. Philadelphian. Bayesian.
Inspired by @emilyriederer.bsky.social, I made some pictures for my seminar on causal inference. They are not labeled. Let's see if you can name that research design.
April 16, 2025 at 3:09 PM
Inspired by @emilyriederer.bsky.social, I made some pictures for my seminar on causal inference. They are not labeled. Let's see if you can name that research design.
This paper taught me that the competition between advertisers for the most desirable ad slots is really important.
We have a beautiful literature on experiments with interference between units but what if there’s interference between experimenters? Estimands change and in a way we can understand and unpack. I hope you enjoy this one! 😊
pubsonline.informs.org/doi/10.1287/...
pubsonline.informs.org/doi/10.1287/...
Parallel Experimentation and Competitive Interference on Online Advertising Platforms | Marketing Science
pubsonline.informs.org
April 4, 2025 at 12:43 AM
This paper taught me that the competition between advertisers for the most desirable ad slots is really important.
Chat GPT just gave me the best complement on my writing I've ever gotten.
April 4, 2025 at 12:20 AM
Chat GPT just gave me the best complement on my writing I've ever gotten.
How frequently do you meet with your students? Once a week just doesn't feel like enough when you are in the "thick" of a project.
March 28, 2025 at 7:41 PM
How frequently do you meet with your students? Once a week just doesn't feel like enough when you are in the "thick" of a project.
Reposted by Elea McDonnell Feit
In reviewing dplyr code written by a PhD student, I'm reminded of how useful base R functions like summary() and str() are for inspecting data and detecting errors.
March 20, 2025 at 3:18 PM
In reviewing dplyr code written by a PhD student, I'm reminded of how useful base R functions like summary() and str() are for inspecting data and detecting errors.
Happy to report that this paper has been accepted at Management Science! (At least that was reported in the ISMS Newsletter, but I can't find the paper on the Management Science website.
Joo and Chiong’s recent working paper provides a Gaussian approximation to the regret function that you can use with ✨any✨ asymptotically normal estimator. This means you can use the minimax-regret criteria with your favorite treatment effect estimators: diff-in-diff, ML estimators.
March 15, 2025 at 8:10 PM
Happy to report that this paper has been accepted at Management Science! (At least that was reported in the ISMS Newsletter, but I can't find the paper on the Management Science website.
Reposted by Elea McDonnell Feit
Joo and Chiong’s recent working paper provides a Gaussian approximation to the regret function that you can use with ✨any✨ asymptotically normal estimator. This means you can use the minimax-regret criteria with your favorite treatment effect estimators: diff-in-diff, ML estimators.
January 2, 2025 at 10:39 PM
Joo and Chiong’s recent working paper provides a Gaussian approximation to the regret function that you can use with ✨any✨ asymptotically normal estimator. This means you can use the minimax-regret criteria with your favorite treatment effect estimators: diff-in-diff, ML estimators.
An important plea from @lizstuart.bsky.social in today's SCI-OCIS Special Webinar Series:
February 19, 2025 at 5:43 PM
An important plea from @lizstuart.bsky.social in today's SCI-OCIS Special Webinar Series:
@septaphilly.bsky.social which is it?
February 10, 2025 at 9:47 PM
@septaphilly.bsky.social which is it?
Reposted by Elea McDonnell Feit
We are seeing some impact on reproducibility efforts with the transition to the new US administration. For now, I suggest that you make backups of any data that required you to actively interact with the Federal government, as there may be a delay in response times.... #openscience
February 3, 2025 at 1:54 PM
We are seeing some impact on reproducibility efforts with the transition to the new US administration. For now, I suggest that you make backups of any data that required you to actively interact with the Federal government, as there may be a delay in response times.... #openscience
Toying with the idea of using RStudio + #quarto + github to manage content for my doctoral seminar on causal inference. I'd like to be able to create short "explainer" documents that integrate math + code + hyperlinks. I don't want this to be a major project. Thoughts on design and workflow?
January 31, 2025 at 6:00 PM
Toying with the idea of using RStudio + #quarto + github to manage content for my doctoral seminar on causal inference. I'd like to be able to create short "explainer" documents that integrate math + code + hyperlinks. I don't want this to be a major project. Thoughts on design and workflow?
Regardless of where you stand politically, the separation of powers is a fundamental principle of American democracy. The President should pursue policy goals by working with Congress—not through unilateral actions that undermine the constitutional process and sow uncertainty.
January 29, 2025 at 3:26 PM
Regardless of where you stand politically, the separation of powers is a fundamental principle of American democracy. The President should pursue policy goals by working with Congress—not through unilateral actions that undermine the constitutional process and sow uncertainty.
Hey Science Queen @ekoenig8.bsky.social: I've noticed the snow melting this week, even though it has been well below freezing. How does this happen? Is the snow sublimating? Or does it melt than freeze? TIA!
January 23, 2025 at 8:17 PM
Hey Science Queen @ekoenig8.bsky.social: I've noticed the snow melting this week, even though it has been well below freezing. How does this happen? Is the snow sublimating? Or does it melt than freeze? TIA!
Lots of folks are discovering the relevance of decision theory to the practical problem of analyzing an A/B. A quick🧵
January 2, 2025 at 10:39 PM
Lots of folks are discovering the relevance of decision theory to the practical problem of analyzing an A/B. A quick🧵
New favorite term: plasmode simulation
January 2, 2025 at 7:35 PM
New favorite term: plasmode simulation
I'm gearing up to teach @callingbullshit.bsky.social at Drexel during Winter term. I had forgotten how much I love this material. Thanks to @carlbergstrom.com and @jevinwest.bsky.social for putting it together.
December 29, 2024 at 9:15 PM
I'm gearing up to teach @callingbullshit.bsky.social at Drexel during Winter term. I had forgotten how much I love this material. Thanks to @carlbergstrom.com and @jevinwest.bsky.social for putting it together.
Writing base R makes me feel the way your great aunt Janine feels when the wedding DJ plays a favorite song from her youth.
December 23, 2024 at 5:50 PM
Writing base R makes me feel the way your great aunt Janine feels when the wedding DJ plays a favorite song from her youth.
Reposted by Elea McDonnell Feit
Microsoft's Computational Social Science group may have the opportunity to hire one researcher
Senior: 0-3 yrs post PhD
jobs.careers.microsoft.com/global/en/jo...
Principal: 3+ yrs post PhD
jobs.careers.microsoft.com/global/en/sh...
Please note: our ability to hire this season is not certain
Senior: 0-3 yrs post PhD
jobs.careers.microsoft.com/global/en/jo...
Principal: 3+ yrs post PhD
jobs.careers.microsoft.com/global/en/sh...
Please note: our ability to hire this season is not certain
December 19, 2024 at 6:54 PM
Microsoft's Computational Social Science group may have the opportunity to hire one researcher
Senior: 0-3 yrs post PhD
jobs.careers.microsoft.com/global/en/jo...
Principal: 3+ yrs post PhD
jobs.careers.microsoft.com/global/en/sh...
Please note: our ability to hire this season is not certain
Senior: 0-3 yrs post PhD
jobs.careers.microsoft.com/global/en/jo...
Principal: 3+ yrs post PhD
jobs.careers.microsoft.com/global/en/sh...
Please note: our ability to hire this season is not certain
@quantuxblog.com convinced me that you can explain mathematical concepts with code just was well as with athematical notation when we wrote R for Marketing. It was nice to see that @allendowney.bsky.social feels the same way in his latest email. #rejectmathsupremacy #probablyoverthinkingit
December 20, 2024 at 12:40 AM
@quantuxblog.com convinced me that you can explain mathematical concepts with code just was well as with athematical notation when we wrote R for Marketing. It was nice to see that @allendowney.bsky.social feels the same way in his latest email. #rejectmathsupremacy #probablyoverthinkingit
Reposted by Elea McDonnell Feit
For everyone:
How many times have you had to use a fire extinguisher?
How many times have you had to use a fire extinguisher?
December 17, 2024 at 7:59 PM
For everyone:
How many times have you had to use a fire extinguisher?
How many times have you had to use a fire extinguisher?
This is just so #Drexel. A fashion design student raises money for student activities by setting up a curated thrift shop with clothes donated at moveout.
drexel.edu/news/archive...
drexel.edu/news/archive...
Old Clothes With a New Life on Campus
A space in the URBN Center repurposes clothing donated by students at moveout and throughout the year to create a unique thrift store.
drexel.edu
December 17, 2024 at 11:10 PM
This is just so #Drexel. A fashion design student raises money for student activities by setting up a curated thrift shop with clothes donated at moveout.
drexel.edu/news/archive...
drexel.edu/news/archive...
Does anyone have experience with py-feat? #python #facialrecognition #emotionrecognition #marketingacad
Anyone have strong opinions about facial expression / emotion tracking software? What would be best for a lab just getting started with this?
December 17, 2024 at 8:51 PM
Does anyone have experience with py-feat? #python #facialrecognition #emotionrecognition #marketingacad
Anyone have strong opinions about facial expression / emotion tracking software? What would be best for a lab just getting started with this?
December 17, 2024 at 8:40 PM
Anyone have strong opinions about facial expression / emotion tracking software? What would be best for a lab just getting started with this?