Some OECD governments go further, seeking to direct growth to particular regions (e.g. outside a capital city) or to particular areas within a city (e.g. inner-city development). Korea, for instance, has attempted to address regional disparities by directing growth to less-developed regions and alleviating agglomeration pressures on major population and industrial centres. While most often implemented by lower levels of government, these tools often require legitimation through national legislation, and may be motivated by national strategies for sustainable urban development. They can include the public acquisition of land, regulation (e.g. zoning provisions, development moratoria, urban growth boundaries, green belts) and fiscal policies (e.g. development impact fees, infill or redevelopment incentives).