; (2) small hub airports; (3) medium hub airports; (4) large hub airports; (5) airports with international service; (6) non-primary airports; (7) local elected officials; (8) relevant labor organizations; (9) passengers; (10) air carriers; and (11) the tourism industry. (c) Considerations In carrying out the study, the qualified organization shall consider— (1) the ability of airport infrastructure to meet current and projected passenger volumes; (2) the available financial tools and resources for airports of different sizes; (3) the current debt held by airports, and its impact on future construction and capacity needs; (4) the impact of capacity constraints on passengers and ticket prices; (5) the purchasing power of the passenger facility charge from the last increase in 2000 to the year of enactment of this Act; (6) the impact to passengers and airports of indexing the passenger facility charge for inflation; (7) how long airports are constrained with current passenger facility charge collections; (8) the impact of passenger facility charges on promoting competition; (9) the additional resources or options to fund terminal construction projects; (10) the resources eligible for use toward noise reduction and emission reduction projects; (11) the gap between the cost of projects eligible for the airport improvement program and the annual Federal funding provided; (12) the impact of regulatory requirements on airport infrastructure financing needs; (13) airline competition; (14) airline ancillary fees and their impact on ticket pricing and taxable revenue