2021年9月10日 · Sept 11, 2001, 7:59am – American Airlines Flight 11, a Boeing 767 carrying 81 passengers and 11 crew members, departs from Logan International Airport in Boston, bound for Los Angeles International Airport. 8:14 – United Airlines Flight 175, a Boeing 767, carrying 56 passengers and 9 crew members, departs from Logan International Airport in Boston, bound …

1982, graduate in Economics, University of Konstanz; 1987, PhD, University of Siegen. 1982-88, Research Assistant, Monetary Economics, University of Siegen; 1989-92, Research Assistant, Department of Economics and 1994, Habilitation in Economics, University of Siegen; 1994-98, Professor of Economic Theory, Rheinische Friedrich-Wilhelms University, Bonn; 1998-2001, …