An electoral alliance may take the form of a bipartisan electoral agreement, electoral agreement, electoral coalition or electoral bloc. It is an association of political parties or individuals which exists solely to stand in elections. Each of the parties within the alliance will have its own policies, but will choose temporarily to put aside differences in favour of common goals and ideology. On occasion, an electoral alliance may be formed by parties with very different policy goals, who agree to pool resources in order to stop a particular candidate or party from gaining power.