[guhcampos]

You are comparing Apples and Oranges. You just can't compare the barrier of entry for Software business and an Airline, even without any regulations. It's just orders of magnitude more expensive to buy an airplane than a laptop, and most utilities are natural monopolies so they behave fundamentally different.

[danielmarkbruce]

Most planes are leased. The capex for an airline isn't anything especially high if they don't want it to be.

[fallingknife]

I can't and I didn't. I never said anything about barriers to entry. I'm talking about concentration here and why the market is dominated by airlines with hundreds of planes instead of airlines with 10 planes. Barriers to entry are inevitable in capital intensive industries.