The usual analysis of privatisation and X-inefficiency uses agency the
ory to model managerial effort. We model worker effort as determined b
y a bargain between firms and workers. Workers dislike effort because
it lowers utility. Firms prefer high effort because it raises producti
vity. Public sector firms are assumed to be social welfare maximisers
and therefore, compared to private sector firms, they bargain lower ef
fort levels since they have the interests of consumers and workers at
heart. Our model predicts that under certain conditions privatisation
should raise effort and so lower X-inefficiency, and that wages may in
crease or decrease.