Considering that Ryanair is the 'supplier' for the Valencia Airport and/or the local Authorities; then this serves as a very good example of the 'suppliers' power.
Ryanair to close base in Valencia
Budget airline Ryanair is to close its base at Valencia in Spain with the loss of 70 weekly flights, it has announced.
The move will affect 750,000 passengers a year and 750 jobs in the region could be lost, according to the airline.
Read the whole article at: http://news.bbc.co.uk/1/hi/uk/7688509.stm