Elea McDonnell Feit's Avatar

Elea McDonnell Feit

@eleafeit.bsky.social

Professor of Marketing at Drexel. Philadelphian. Bayesian.

455 Followers  |  309 Following  |  83 Posts  |  Joined: 07.02.2024  |  1.881

Latest posts by eleafeit.bsky.social on Bluesky

Post image 16.04.2025 15:09 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image 16.04.2025 15:09 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image 16.04.2025 15:09 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image 16.04.2025 15:09 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image 16.04.2025 15:09 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

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.

16.04.2025 15:09 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 2    πŸ“Œ 0

This paper taught me that the competition between advertisers for the most desirable ad slots is really important.

04.04.2025 00:43 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

Chat GPT just gave me the best complement on my writing I've ever gotten.

04.04.2025 00:20 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

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.

28.03.2025 19:41 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I need to answer that email about the revision! I'm on-board, but the email got buried in my inbox.

25.03.2025 22:08 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

What a week, huh?

21.03.2025 12:02 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Or maybe youse guys data is much cleaner than mine.

20.03.2025 15:28 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Maybe my style of interactive debugging is archaic.

20.03.2025 15:20 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Sometimes I just want to know how many zeros and NAs there are in a field and I don't want to write a long dplyr chain to figure that out.

20.03.2025 15:19 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

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.

20.03.2025 15:18 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 2    πŸ“Œ 0

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.

15.03.2025 20:10 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
screenshot of cited paper

screenshot of cited paper

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.

02.01.2025 22:38 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 1    πŸ“Œ 1

I know you were responding to @blasimon.bsky.social, but wanted to chime in to say I agree they are very strong parametric assumptions. We tried to spell that out as clearly as we could.

19.02.2025 22:00 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Image shows an excerpt from the chapter.

Image shows an excerpt from the chapter.

To help marketing reviewers and editors understand the untestable assumptions of causal inference methods, Dominik Papies, Peter Ebbes and I wrote this "menu" as part of our chapter on "Endogeneity and Causal Inference in Marketing". (Preprint: dx.doi.org/10.2139/ssrn...)

19.02.2025 17:53 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
A warning and a plea
- As fields start to use more advanced quantitative / "cause" methods, there is a desire to help consumers of the research (four journal reviewers, editor) to easily assess the study quality and validity (e.g. JAMA causality language) 
...
- We need to push against this - need ways to help people understand and assess the (inherently untestable) assumptions in many studies.

A warning and a plea - As fields start to use more advanced quantitative / "cause" methods, there is a desire to help consumers of the research (four journal reviewers, editor) to easily assess the study quality and validity (e.g. JAMA causality language) ... - We need to push against this - need ways to help people understand and assess the (inherently untestable) assumptions in many studies.

An important plea from @lizstuart.bsky.social in today's SCI-OCIS Special Webinar Series:

19.02.2025 17:43 β€” πŸ‘ 9    πŸ” 2    πŸ’¬ 2    πŸ“Œ 0

Maybe we should get out the vacuums?

17.02.2025 14:49 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

bsky.app/profile/sste...

12.02.2025 17:10 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

#Eagles and #Dragons fly together!
πŸ’šπŸ¦…πŸ€ πŸ’™πŸ‰πŸ’›
Drexel will close on Friday to join the rest of #Philly in celebrating the Champions!

12.02.2025 17:06 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I made it home! Everyone was a little bleary-eyed on Monday. πŸ¦…πŸ¦…πŸ¦…

12.02.2025 12:46 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

@septaphilly.bsky.social which is it?

10.02.2025 21:47 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

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

03.02.2025 13:54 β€” πŸ‘ 98    πŸ” 56    πŸ’¬ 2    πŸ“Œ 7

That might do it. I'm finding it really annoying that ChatGPT writes in markdown and it doesn't paste well into Google Docs.

31.01.2025 22:05 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Nice! I’m worried I’m not organized enough for this. Sometimes my content is just a list of links to papers. (This is a seminar for PhD students.)

31.01.2025 19:18 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

For my other courses, I create a master Google doc that I share with students which includes links to other course materials.

31.01.2025 18:02 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

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?

31.01.2025 18:00 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 4    πŸ“Œ 0

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