APPENDIX TABLE 2 Spearman Rank Correlation Coefficients,,,,
Years,Labor productivity and profits (OAI),Labor productivity and profits (OST),Multifactor productivity and profits (OAI),Multifactor productivity and profits (OST)
1993–2001,0.79 *,,0.53,
1994–2001,,0.83 *,,0.45
1993–2000,0.77 *,,0.74 *,
1994–2000,,0.78 *,,0.61
Key: OAI = Office of Airline Information; OST = Office of the Secretary of Transportation.,,,,
"Notes: For columns 1 and 3, profit data were obtained from TranStats. For columns 2 and 4, profit data (for Majors) were obtained from Airline Quarterly Financial Review (various issues).",,,,
* Significant at the 95 percent level. There is a 5% chance of concluding that a positive or negative association exists when in fact it does not.,,,,