Authorities at all levels of government influence the economy through a variety of efforts and agencies. State and local governments implement taxes, grant zoning permissions, and regulate private and public entities. They often directly generate a significant portion of economic activity through employment and development. Governments, counties, towns, school districts and public colleges employ one in seven workers nationally. Crucial economic support services, such as social insurance programs including unemployment insurance and Medicaid, are also administered by state and local governments. Regardless of what level of government sets taxes or interest rates, local and state governments are responsible for the implementation and subsequent maintenance of local economies, making them critical stakeholders in the community.