Many developments in local health care markets appear to be setting the stage for additional health care cost increases and access-to-care problems, according to initial findings from the Center for Studying Health System Change's (HSC) 2005 site visits to 12 nationally representative communities. Hospitals and physicians are competing more broadly and intensely for profitable specialty services, making costly investments to expand capacity and offer the latest medical technologies, especially in more affluent areas with well-insured populations. Employers and health plans have launched few initiatives to control rising costs beyond increasing patient cost sharing. As rapidly rising costs continue to push private health insurance out of reach for more people, state and local governments are struggling to meet the needs of low-income people and an increasing number of uninsured people.