Public policy is influenced by many internal and external factors. Internal factors include public opinion, the economy, technology, and interest groups, while external factors are donor agencies, neighboring countries, socio-cultural conditions, and political activities. Public opinion strongly influences policy through protests and elections. The economy can enable or constrain policy based on available resources. Technology provides new solutions but also changes business environments. Interest groups advocate for policies benefiting their members. Donor agencies provide aid with policy conditions. Neighboring country relationships and demands also shape policy. Socio-cultural norms must be considered. Political parties compete over policy control through debates and demands.