; (10) the level of competition between alliances; (11) whether the Department of Transportation should amend, modify, or revoke any exemption from the antitrust laws granted by the Secretary in connection with an alliance; and (12) the effect of alliances on the number and quality of jobs for flight crew employees of United States air carriers, including the share of alliance flying done by such employees. (c) Recommendations Not later than 180 days after the date of the enactment of this Act, the Comptroller General shall submit to Congress the results of the analysis conducted under subsection (a), which shall include recommendations on the reforms needed to improve competition and enhance choices for consumers, including— (1) whether oversight of alliances should be exercised by the Department of Justice rather than by the Department of Transportation; and (2) whether antitrust immunity for alliances should expire. 402. Analysis of air carrier mergers (a) In general The Comptroller General of the United States shall conduct a post hoc analysis of the effect on the public interest and the state of competition and choice in the air transportation industry as a result of consolidation of air carriers that occurred on or after January 1, 2000, and before the date of the enactment of this Act. (b) Considerations In conducting the analysis required under subsection (a), the Comptroller General shall consider the extent to which— (1) fares are reasonable and proportional to the costs of the services provided; and (2) between January 1, 2000, and the date of the enactment of this Act— (A) fares have changed; (B) competition and consumer choice have changed; (C) fees imposed by air carriers, including ancillary fees, have changed; (D) configuration of routes has changed and the extent to which the availability of choices on those routes has changed; (E) operational performance has improved; and (F) investment in aircraft, amenities, and workforce has changed.