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2. B. Roberts, The macroeconomic impacts of the 9/11 attack: evidence from real-time forecasting, Office of Immigration Statistics Policy Directorate, Department of Homeland Security, Washington, DC, www.dhs.gov/xlibrary/assets/statistics/publications/ois_wp_impacts_911.pdf, 2009.
3. W. Thompson Jr., One year later: the fiscal impact of 9/11 on New York city, Office of the Comptroller–City of New York, New York, http://comptroller.nyc.gov/bureaus/bud/reports/impact-9-11-year-later.pdf, 2002.
4. New York State Department of Public Service Office of Communications, Network reliability after 9/11: a staff white paper on local telephone exchange network reliability, www.neutraltandem.com/documents/NetworkReliability.pdf, 2002.
5. Who Built America? Working People and the Nation’s Economy, Politics, Culture, and Society;Clark,2008