This paper provides a theoretical model of electoral competition in a multidimensional political arena with a heterogenous electorate and politically active interest groups. The emerging pattern of movement in policy platforms is fundamentally different to the concept of convergence proposed by...

This paper provides a theoretical model of party competition in a heterogeneous electorate. The latter consists of numerous groups of dominant-issue-voters who base their voting decision primarily on one issue of the political agenda. Parties follow a lexicographic objective function, aiming to...