Do intergovernmental interactions increase government spending?

This study investigates yardstick competition in local government spending in South Korea. By leveraging the exogenous variation introduced by by-elections, the study estimates the influence of neighbouring jurisdictions on local expenditures. The findings reveal no significant interdependence in spending among South Korean municipalities, which contrasts with previous empirical studies from other countries. The results suggest that conventional spatial econometric methods may overestimate the degree of interdependence in local spending.