Welfare-maximizing regional government: who benefits from it?

Does the purpose of the regional government influence the inter-regional tax competition under spatial concentration? Is the any regional government the effective one? The base of theoretical analyses is the agglomeration theory of new economic geography. It is proposed to build agglomeration model under the inter-regional tax competition, which takes into account the aims of the regional governments, and to test econometrically the tax competition and purposes of the administration in Russian regions