Line Graph: Detroit-Boston, Northwest's And Spirit's Average One-Way Fares For "True Local" Passengers

Line Graph: Detroit-Boston, Northwest's and Spirit's Average One-Way Fares for "True Local" Passengers

X-axis: January 1995, April 1995, August 1995, November 1995, March 1996, June 1996, October 1996, January 1997, May 1997, August 1997, December 1997
Y-axis: From 0 to 300 dollars in 50 dollar increments

A green line shows that Spirit's fare did not significantly deviate from around $70 between March 1996 and October 1996. A red line shows that Northwest's fare fluctuated between $200 and $270 from January 1995 to March 1996, then dropped to just above Spirit's $70 fare from March 1996 to October 1996, then increased to between $200 and $300 from October 1996 to December 1997. The period between March and October 1996 when both fare amounts were very close is identified as the predation period.

Note: Northwest defines three types of local passengers: "true local," "connecting local," and "multi-destination local." "True local" passengers are nonstop local passengers.

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Updated June 25, 2015

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