“…Santos and Haimes' (2004) sophisticated input/output framework uses the full 483 North American Industry Classification System (NAICS) industries and the interconnections among them to examine the economic effects that reductions in demand in specific sectors can have on the economy as a whole. Increasingly sophisticated models of economic activities and specific infrastructure systems are also rapidly improving the ability to assess the costs of attacks on transportation (Haimes, undated;Bae, Blain, and Bassok, 2005), electrical power (Chang, McDaniels, and Reed, 2005;Lave et al, 2004;Rose, Oladosu, and Liao, 2005;ICIS, 2005;Amin and Gellings, 2005), shipping Park et al, 2006), and tourism . 15 A study of the 2002 West Coast port labor dispute, which shut down multiple major ports for 10 days, suggested that many calculations of the costs of major economic disruptions overestimate their impact on the national economy (Hall, 2004).…”