Spillover Effects or Endowment Factors Caused Regional Inequality in Gresik District?

Gresik Regency is one of the centers growth in East Java Province. With a location agglomeration area Province, it not surprising that gets an economic spillover (spillover effect) from City Surabaya. The effect impact arises because dependence relationship between poles and surrounding area. main method this research use econometric models. unit observation study includes dependent variable, namely regional disparity as measured by Williamson Index, independent variables, factors theoretically affect disparities. analysis 18 (eighteen) sub-districts Regency. areas with high level (IW value 50<) are located bordering city Surabaya, such istrict, Kebomas District, Cerme Menganti District Driyorejo District. prove factor has significantimpact on overall development.