How is the difference between high-yield and low-yield passenger traffic determined?
In checking the range of fares available in the market PHX-MSP-PHX a few days ago, a round trip coach ticket with all taxes and fees included could set one back for as little as $153.50 or as much $1,735.00. It is very obvious that one of these represents low-yield while the other would fit the definition of high-yield.
But what about the dozens, if not hundreds, of other coach fares available in the same market that fall at one of countless increments possible between the lowest and highest found? At what point does low-yield end and high-yield begin? Or are there any number of in-between categories - perhaps "intermediate-yield" or "high-/low-intermediate yield"?
What are your thoughts?