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)|
|1993-2000||0.77 *||0.74 *|
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.