As a result, Allegiant identifies that if congress passes similar emission control, Allegiant would not be able to operate without an increases in costs of business. As a result, environmental emission control fears and uncertainty in fuel, Allegiant used the revenue acquired from the low cost of market entry with the MD-80s, to begin leasing and ordering A319s and A320s as replacement fleet. Airbus lists an A320 with an average list price of 93.9 million which dramatically differs from Allegiants initial aircraft cost of 4 million (Airbus, 2014). Allegiant cited a 12 percent increase in fuel burn productivity after the introduction of three leased A319s into their fleet (Allegiant, 2013). As a result of growing fears of fuel costs and emissions legislation, Allegiant has inherently moved to a greener