The theoretical approaches to the role of multinational mining operati
ons in developing countries are examined in the light of the experienc
e of Papua New Guinea. Existing theories tend to focus dn the nation-s
tate level, and it is argued that regional and local factors are conse
quently relatively ignored. The importance of the interactions between
groups working at different geographic scales within Papua New Guinea
is highlighted. Impacts of the mining industry (economic, political,
social and environmental) at the various scales are briefly described
and the responses to these impacts discussed. It is found that the gre
atest social and environmental costs fall on the local population arou
nd the mine sites, while economic and political benefits are concentra
ted at the national and international scales. Finally, a model of the
multinational-developing country relationship is proposed to take acco
unt of the influence of local and regional actors.