This indicator measures the differential between household income of existing residents in an area and that of in-migrants to the area. It addresses whether the people moving in are wealthier (or less wealthy) than those already there. Retirees or the wealthy may not rely on local natural resources for livelihoods in the same fashion as long-time residents or lower income in-migrants. Moreover, disparities in income are one indication of a lack of community cohesion that can be a barrier to local action on behalf of rangeland protection or sustainable management.