The newspaper story even comes with a graphic meant to convey an important piece of the top trading cycle algorithm:
"Somewhere inside the jumble of narrow beige corridors on Poland Avenue in the Upper 9th Ward, in the state-run Recovery School District's headquarters, someone will hit a button on a computer in the next few weeks, and presto: Almost all of the roughly 28,000 students in New Orleans who applied for a seat this fall at one of the district's 67 schools will be assigned a place. With that final keystroke, the school system will move for the first time from a frustrating, ad-hoc enrollment process handled at individual campuses to one centralized at district offices.
"Every child will get a spot. But because schools don't have an infinite number of seats and some schools will doubtless prove more popular than others, not every family will get their top pick. More than likely, some small percentage won't get any of the eight choices they ranked when they filled out their application earlier this year.