In this report, in addition to aggregateresults, six brief case studies are used to highlight theimpact of Bank supported mining sector reform on variousindicators at different links of the value chain. Theseinclude: the impacts on investment; production andemployment in Argentina; institutional capacity building inPapua New Guinea; production and fiscal revenues inTanzania; community and regional development in Madagascar;mining sector reform and sustainable development inMongolia; and mining and resource corridors in Liberia. Thereforms of the 1990s and early 2000s, which focused onincreasing investment and building regulatory capacity, haveoften had spectacular results with respect to investment andgood results with respect to institution building. The workon increasing the efficiency and transparency of fiscalregimes has also achieved significant success, although itis still too early to make a final assessment. While themining sector-specific aspects of the management andallocation of fiscal revenues are still in early days, theredo seem to have been important impacts on poverty reductionand sustainable development in a number of countries thathave undergone mining reform, although there has been aninsufficient passage of time to make definitive judgments.