Cost sharing is a financial arrangement where multiple parties contribute to the expenses of a project or service. This approach is often used in healthcare, education, and community projects, allowing individuals or organizations to share the burden of costs. For example, in a health insurance plan, both the insurer and the insured may pay a portion of the medical expenses, making healthcare more affordable for everyone involved. By sharing costs, participants can access resources or services that might be too expensive for one party alone. This collaborative effort not only reduces individual financial strain but also fosters a sense of community and cooperation among those involved.