  In Beyond5G and 6G networks, a common theme is that sensing will play a more
significant role than ever before. Over this trend, Integrated Sensing and
Communications (ISAC) is focused on unifying the sensing functionalities and
the communications ones and to pursue direct tradeoffs between them as well as
mutual performance gains. We frame the resource tradeoff between the SAC
functionalities within an economic setting. We model a service provision by one
operator to the users, the utility of which is derived from both SAC
functionalities. The tradeoff between the resources that the operator assigns
to the SAC functionalities is analyzed from the point of view of the service
prices, quantities and profits. We demonstrate that equilibrium quantities and
prices exist. And we provide relevant recommendations for enforcing regulatory
limits of both power and bandwidth.
