[tetha]

I'm now somewhat interested in the study to see how they accounted for possible hidden factors.

If a team lead or manager spent the time to track birthdays and took time out of their day to have a 10 minute chat with someone on their birthday, they probably exhibit a number of other behaviors that could be summarized as "treating their employees as humans". That's the boss people tend to like to work with and possibly go another mile for them.

If tolerating your boss during a normal day takes 9 of your 12 spoons of energy for the day, it takes very little further push to be spiteful. At worst, they may force you to find another workplace with a better boss.

[dmurray]

This is a study from an elite institution published in a respectable journal in the social sciences. Certainly they took the time to perform a controlled experiment and assigned managers at random to deliver the birthday cards late or on time. That would be cheap to do and minimally invasive for the human subjects.

[Reads abstract]

They didn't? It's a pure observational study that one measure of sloppiness in the organisation correlates with another? What do we pay these guys for?

[jampekka]

Per abstract it's a "a dynamic difference-in-differences" analysis, which means likely that they see whether the employee behavior changes after the event. But establishing causation with it still requires quite a few assumptions.

PNAS is kinda known for headline grabbing research with at times a bit less rigorous methodology.

https://statmodeling.stat.columbia.edu/2017/10/04/breaking-p...

> Certainly they took the time to perform a controlled experiment and assigned managers at random to deliver the birthday cards late or on time. That would be cheap to do and minimally invasive for the human subjects.

If the results are true, it would be actually quite expensive because of the drop in productivity. It could also be a bit of a nightmare to push through ethical review.

[dmurray]

They could start by observing the rate at which birthday cards are delivered on time, and not vary too much from that.

I suppose the impact on productivity isn't known in advance, and it might be that failing to receive a birthday card from a normally diligent manager costs the company more in productivity than it gains from a sloppy manager unexpectedly giving one on time.

[zelphirkalt]

However, if at some point somehow it shines through, that this is just another checklist being ticked off, without actual sincerity behind it, this all goes down the drain, and the time would be better spent on actual work environment improvements, rather than wet handshakes and pseudo "we are a family".