In practice, it shows significant, verifiable productivity
improvements—25% to 40%—when
targeting simple, repetitive production
tasks, both in traditional companies
and in human intelligence tasks
on Amazon’s Mechanical Turk platform.
Other studies, as cited by Prendergast,
conclude that approximately
30% to 50% of productivity gains is due
to the filtering and attraction of better
workers, due to the selective effect
of the incentive. This important finding
explains why greater profit can be
achieved even with relatively limited
incentives. PPP is not suited for large,
distributed, team-dependent tasks,
where measuring individual contributions
is inherently difficult. However,
it is frequently used to complement
other incentive mechanisms.