Marlon Alves

[Ethan Mollick @emollick]

Increasingly think an MBA, rather than a CS degree, is the key to the state of AI. It is all very human

Large players dealing with Chistensen's disruption, Arrow's cannibalization, and Meyer & Rowan's rituals...

Among the startups, founder-board conflict, Klepper's spin-outs...

[Jacob Trefethen @JacobTref]

Many intriguing questions lurking in this graph. A few I'm mulling over:

1. How come there's no HIV vaccine when it's received more investment than any of the others (perhaps bar COVID now)?
-> Scientific goals aren't effort in = results out; even with modern techniques, some...

[Selçuk Korkmaz @selcukorkmaz]

Understanding Type 1 & Type 2 Errors in Plain English

🧵 Let's delve into the world of statistical errors using some everyday examples! Type 1 and Type 2 errors can seem complex, but they're basically about making the wrong call based on your data. Let's break it down.

• Type 1 Error (False Positive):
•Imagine you're at an ancient temple, and an alarm sounds when intruders arrive. But it's just a curious squirrel! 🐿️
•In stats: You think you've found a real effect, but it's just random chance playing tricks.
•Technical term: Rejecting a true null hypothesis.

• Type 2 Error (False Negative):
•Back at that temple, a sneaky ninja 🥷 gets in, but the alarm stays silent.
•In stats: You miss a real effect because of variability, luck, or just not enough data.
•Technical term: Failing to reject a false null hypothesis.

• Balancing Act:
•Think of these errors as opposite ends of a seesaw. Reducing one often increases the other.
•It's like making the temple alarm more sensitive to catch ninjas. You'll also get more squirrel alerts!

• Real-Life Impact:
•Medical Testing:
•Type 1: Telling someone they have a disease when they don't. 😟
•Type 2: Telling someone they're fine when they're not. 😱

• How to Minimize These Errors?:
•Bigger sample sizes can help, but there's always a trade-off.
•In our temple, maybe combine motion sensors (to spot ninjas) with heat sensors (to ignore squirrels).

• Why It Matters:
•Making decisions based on data is powerful, but knowing potential pitfalls ensures we make the right call.
•Whether you're guarding ancient treasures or interpreting a new study, understanding these errors helps navigate uncertainty.

Keep asking questions and seeking truth. And remember: squirrels might set off alarms, but it's the ninjas you really need to watch for! 🐿️🥷

#DataScience #Statistics

PS: Thanks to @DiegoMarnei for the topic suggestion

[Altay de Souza @altayals]

2 cents e ñ vou perder tempo com isso:

Enquanto o currículo da graduação do aluno de Psico médio for picareta do jeito que é, dizer se AEC, TCC ou Psicanálise são ou não pseudociencia é bobagem.

Não existe Ciência na graduação em Psico hj em dia e essa é a fonte do problema.

[Diego Zunino @DiegoZunino88]

🌈🚀 KTO celebrates the #PrideMonth with...research! Our own @ValerioIncerti, together with Luke and Caroline, found that LGBT entrepreneurs tap into supportive networks to acquire valuable resources and thrive in their unique journey. Find out more here: https://t.co/HYCii9YvjT

[John A. List @Econ_4_Everyone]

Many have asked why I started this diversity program. While the economic ranks are dominated by white men, they do not have a monopoly on creative ideas. The world will be a much better place when we welcome everyone to economics.

Spread the word!
https://t.co/lgZpQ8tK1o

[Rodrigo Zeidan @RodZeidan]

Qual a coisa mais triste q já ouvi de um aluno?

"Pq tô aprendendo isso?"

A admissão de falta de curiosidade intelectual e o uso instrumental do conhecimento são das coisas mais tristes de encontrar em um aluno.

[Marlon Alves @marlonfralves]

@Sung_Hoon_Lee @NEOMAbs @FrMalerba Congrats Sung! All the best for you 👊🏾

[Mark Stokes @StokesNeuro]

Hi folks, I’m afraid it’s time for me to say goodbye. Not just leaving Twitter, but the whole show. I’ve been battling cancer last 2 years, but now only have a few days left now. Thank you wonderful people, I leave this crazy world with much love in my heart ❤️

[Ralf Wilden @RalfWilden]

CfP: Sydney Conference March 23/24. Co-sponsored by @AOM_STR and @Macquarie_Uni.
Please submit your papers by January 15. More info: https://t.co/AlKoklznqu

[Marlon Alves @marlonfralves]

Huge thanks to discussions w/ @CassandraRaeCh1 and @peteaceves! And also, my gratitude to the support from @CAPES_Oficial and @Unibocconi during my PhD.

[Marlon Alves @marlonfralves]

Have you seen our recent paper in @OrganizationSci? https://t.co/YzDsqkfRn7

This video abstract nicely summarizes our research. We find that following your #intuition can be helpful in very specific situations.

Here’s a thread on what we found… 🧵

[Marlon Alves @marlonfralves]

To be clear, we do not argue that organizations should always prefer intuition and reflection. Instead, managers should consider the fit between the cognitive processes, the environment, and the behavioral demands.

[Marc Gruber @MarcBGruber]

AMJ would like to thank LUISS University for hosting a Paper Development Workshop on October 12 & 13! "Grazie" on behalf of Marc Gruber, Juliane Reinecke, Floor Rink, Davide Ravasi and Anne ter Wal. @AOMConnect @UniLUISS