Based on comprehensive research regarding cultural changes, especially in the high lands of Papua New Guinea, qualitative and quantitative data are submitted to a secondary analysis on the following descriptive levels: urbanization, monetarization, gender relations, ethnicity, Christianization and secularization, magic, ritual, mythology, initiation, individual and societal mobility, ethnic identity vs. identity based on the nation state, tribal vs. state legal system, extended family structures vs. intimization of family relations in the context of migration to the city. The theoretical part of the study concerns itself with the limits of ?intercultural communication? and the validity in principle of acculturation research during a period of increasing economic and cultural globalization.