Immigration policies significantly affect demographic changes by influencing population growth and composition. Policies that promote immigration can lead to increased diversity, as newcomers bring varied cultures and skills. This influx often revitalizes local economies and addresses labor shortages. Conversely, restrictive immigration policies can reduce population growth, impacting social services and economic development. Additionally, shifting demographics result in evolving political landscapes, as new groups become more influential in elections and community issues. Understanding these dynamics helps assess the broader implications of immigration on society.