Better examples are tools of the trade.
Watch repairers, engineers, and carpenters
tend to own their own tools especially if
they are portable. Trucks are more likely
to be employee owned rather than other
equally expensive team inputs because it
is relatively cheap for the driver to police
the care taken in using a truck. Policing
the use of trucks by a nondriver owner is
more likely to occur for trucks that are
not specialized to one driver, like public
transit busses.