Robert MacCulloch: Did the Gov't Fudge the Air NZ accounts to make us unable to work out its domestic monopoly powers?

Air NZ released its annual report yesterday, declaring bumper earnings of over half a billion dollars. Given the airline has a near monopoly on domestic routes, the only thing of interest to economists in the report is the earnings split between (non-competitive) domestic and (more competitive) international routes.

Call me stupid, but I was unable to find that number anywhere in the accounts. The report is 100 pages long, but the only really interesting number was nowhere to be found.