  The report's author, Jay Sorensen, points out that though
total airline revenue for the years 2000 to 2010 was $4.3
trillion, the industry actually ended up losing over $36 billion
during that period. Given such circumstances, it is not so easy
to blame airlines for seeking to make more money from passengers
willing to pay for perks. And with more money filling their
coffers they can provide a better service with newer aircraft
for all their flyers.  “The world's airline industry simply
can't increase fares quickly enough to account for runaway fuel
bills,” Mr Sorensen writes. “For the 2000 through 2010 period,
US average air fares increased less than one percent.”  The
report makes a good point about changes that have taken place in
areas of airline operations that were previously seen purely as
cost centres. Divisions such as baggage handling, for example
have become sources of income. Of course customers are checking
fewer bags, but Mr Sorensen reckons the improvement is not just
down to a smaller worklo