Many political parties are motivated by ideological goals. It is common for democratic elections to feature competitions between liberal, conservative, and socialist parties; other common ideologies of very large political parties include communism, populism, nationalism, and Islamism. Political parties in different countries will often adopt similar colours and symbols to identify themselves with a particular ideology. However, many political parties have no ideological affiliation, and may instead be primarily engaged in patronage, clientelism, or the advancement of a specific political entrepreneur.