> Donkor found that around 60% of people chose a tip from the menu, indicating that most passengers preferred not to have to calculate a tip in their heads.
That assumption seems to be quite a stretch. Naively I would think that major drivers for this behavior are saving time and comparatively terrible custom tip experience.
Personally I love doing mental math, but still use preselected tip in situations with external pressure. For example when there is a line of people behind me in a coffee shop or I am trying to get out of taxi fast so the driver is not waiting on me.
Can you pinpoint these "MANY unfounded assumptions" in the research paper? I read the paper but I don't see where the author is making these assumptions.
It think it's telling that most customers picked 20%, the lowest on the menu. I would conclude that the menu presents a nudge towards establishing 20% as the lowest socially acceptable tip. Selecting a custom tip lower than 20% runs the risk of upsetting the driver, possibly leading to a verbal or physical altercation.
That assumption seems to be quite a stretch. Naively I would think that major drivers for this behavior are saving time and comparatively terrible custom tip experience.
Personally I love doing mental math, but still use preselected tip in situations with external pressure. For example when there is a line of people behind me in a coffee shop or I am trying to get out of taxi fast so the driver is not waiting on me.