Chadwick, Richard W. 2005.

“Levels of Meaning and Levels of Analysis: Exploring Micro-Macro, Local-Global Interface Problems with the International Futures Simulation (IFs), Using Hawaii as an Exemplar.” Paper generated for International Studies Association Conference at Bilgi University, Istanbul, August 24−27.

United States National Intelligence Council (US NIC). 2004. Mapping the Global Future: Report of the National Intelligence Council’s 2020 Project. Washington, DC: United States National Intelligence Council.

Casetti, Emilio. 2003. “Power Shifts and Economic Development: When Will China Overtake the USA?" Journal of Peace Research 40 (6): 661−675.