the national economic impact of civil aviation dri wefa inc a global insight company i july 2002 in collaboration with campbell hill group commercial passenger and cargo transportation general including business air taxi related manufacturers servicing support supply chains effects income generated induced impacts by direct indirect industries such as travel tourism for which provides an enabling function ii acknowledgements wish to acknowledge cooperation following organizations this research aerospace association transport america boeing airline 1 preface importance economy nation quality life americans was made readily apparent terrible events september 11 2001
