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Table 1: System of Scheduled Aviation Activities in the United States: Number of Passengers and Aircraft Departures (in natural logs)

Table 1: System of Scheduled Aviation Activities in the United States: Number of Passengers and Aircraft Departures (in natural logs)

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Network variants
(1)		 System equations
(2)		 Intercept
(3)		 Seasonal dummy
(4)		 Share of Southwest Airlines
(5)		 Share of RJ carriers
(6)		 9/11 dummy
(7)		 Ln (one quarter lag)
(8)		 Adj. R2
(9)		 N (used)
(10)		 N (read)
(11)
PP ln(Paxij) 0.5039* 0.0958* 0.0032* -0.0011* -0.1083* 0.9107* 0.8903 39,880 73,438
ln(A/C Depij) 0.1928* 0.0367* 0.0017* -0.0006* 0.0465* 0.9215* 0.8865    
HH ln(Paxij) -0.8040* 0.1205* 0.0009* -0.0004* -0.0161* 0.9203* 0.9039 34,192 35,827
ln(A/C Depij) 0.4363* 0.0407* 0.0011* 0.0013* -0.0110* 0.9263* 0.9155    
HS ln(Paxij) -0.7568* 0.0863* 0.0012* 0.0006* -0.0309* 0.9128* 0.8485 97,171 118,864
ln(A/C Depij j) 0.4290* 0.0006 0.0007* 0.0012* -0.0028 0.9151* 0.8591    

Key: * = 99% level of significance.

Note: First row in each network variant represents scheduled passengers and the second row represents the number of aircraft departures.