In some markets where the general conditions may seem to make monitoring of deviations difficult, firms may nevertheless engage in practices which have the effect of easing the monitoring task, even when these practices are not necessarily entered into for such purposes. These practices, such as meeting-competition or most-favoured-customer clauses, voluntary publication of information, announcements, or exchange of information through trade associations, may increase transparency or help competitors interpret the choices made. Cross-directorships, participation in joint ventures and similar arrangements may also make monitoring easier.
