Price out

Posted by Thankful on May 07, 2007

What does 'price out' mean? I couldn't find it in dictionaries. much appreciation as always.

the context:
That's not all bad. For years, many of us have made a conscious effort to bring together on campus students of varying backgrounds, values, and experiences, enhancing their education and their preparation for the real world. We've worried about pricing out the middle class. And, keenly aware that the admissions process does not take place on a level playing field, colleges have been more active in reaching out to talented students who might otherwise be overlooked. This expanded access has meant more competition for a relatively fixed number of slots at some schools.