You must compete. But not too much
For if you do, you see,
Then the market would be yours
And that’s monopoly!”
Price too high? Or price too low?
Now, which charge did they make?
Well, they weren’t loath to charging both
With Public Good at stake!
I love that ditty, used to be able to recite it all, back in “the day” !
But why not go one better
How ‘bout “monopoly!”
No muss, no fuss, oh clever us,
Righto, we’ll charge all three!
(corrected per my memory. Startles me that someone changed the words.)