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- globalization (3)
- social aspects (3)
- economic policy (2)
- global financial crisis, 2008-2009 (2)
- government policy (2)
- psychological aspects (2)
- united states (2)
- aeronautics, commercial (1)
- aircraft exhaust emissions (1)
- airplanes (1)
- cognition (1)
- developing countries (1)
- economic development (1)
- electronic surveillance (1)
- emergency management (1)
- energy conservation (1)
- environmental aspects (1)
- environmental policy (1)
- europe (1)
- evidence (1)
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