Social loafing
People put in less effort when working in a group than alone, especially when individual contributions cannot be identified or evaluated. It shrinks when contributions are visible, the task matters to the person, or they value the group.
What drives it
It conserves effort when effort will not be credited, and protects against being the 'sucker' who works while others coast. It is a response to how work is set up more than a character flaw.
How it shows
Work
Group projects where the same two people do most of the work. Big meetings where most attendees say nothing and prepare nothing. Shared inboxes and shared ownership ('the team owns this') with nobody actually owning it. The hardest workers start withholding effort once they notice others coasting (the sucker effect), so output declines in steps.
Relationships
Household chores that 'everyone' is responsible for and so nobody does. Group gifts and trip planning where one person ends up organising everything and resenting it.
Self
You notice your effort drop when you know your piece will be blended with others' and no one will see it on its own. Or the reverse: you feel irritation that your extra effort is invisible and start doing less.
What tells it apart
Disengagement and quiet quitting: Social loafing lifts as soon as individual output is made visible; disengagement persists even when it is measured, because the person no longer cares.
Over-functioning and under-functioning: Over- and under-functioning is a stable relational pattern between specific people; social loafing changes with group size and visibility regardless of who is in the group.
Procrastination: Procrastination delays your own task even when working alone; loafing appears only when work is pooled.
A test
Make each person's contribution individually visible and evaluated, and see whether effort rises.
Questions to carry
- With each person's part made visible and judged, what happened to the effort in the group?
- In which shared task do I ease off, and whose coasting am I refusing to pay for?
How strong the research is
strong
Where it comes from
Max Ringelmann, 1913 (rope-pulling studies); Bibb Latané, Kipling Williams and Stephen Harkins, 1979; Steven Karau and Kipling Williams, 1993 (meta-analysis and collective effort model)