Effects of Southwest Airlines on Carrier Profits and Entry Probabilities

Table 1

Descriptive statistics.

Variable		Mean	St. dev.
Airport presence	American	0.280	0.127
	Delta	0.339	0.160
	United	0.212	0.101
	Southwest	0.352	0.200
	JetBlue	0.162	0.088
	Small LCC	0.209	0.177
Excess distance	American	0.506	1.232
	Delta	0.495	1.767
	United	0.672	1.633
	Southwest	0.304	1.147
	JetBlue	0.423	0.970
	Small LCC	0.166	0.526
Market size (population)		3,026,113	2,258,958
Per capita income ($)		45,602.56	4,210.65
Income growth rate (%)		3.107	0.973
Market distance (miles)		1031.617	578.920
Closest airport (miles)		38.031	20.679
Slot (0/1)		0.091	0.287
Number of markets		3024