Why does PPS want to attract more students from outside the District?

The "Open Enrollment" issue is before the Portland Public Schools Board. It has to do with the rules governing transfers between school districts in Oregon. School districts have several options, which are confusing. This post skips the confusion of the options and asks the underlying question: should PPS seek to have more in transferring students and seek to have fewer out transferring students. The general PPS attitude and assumption seems to be "yes. " Simple economics seems to suggest to me that the answer should be "no."

First, here are the first "recitals" from the draft PPS Board resolution:

 

Second, let us look at the costs of each additional students in PPS. It currently costs PPS at least $11,000 per student per year.  PolitiFact Oregon cited $11,459 in the following:

Here on the cost per student at Beach in 2011-12:

Third, how much does PPS receive in State School Funds per student per year? Here is part of the Oregon Department of Education's most recent estimate.

ADM(w) is a weighted count of students, not actual student enrollment. Using the recent 2013 PPS enrollment figure of 48,080 yields a "General Purpose Grant" per student of $7,394.98 and a "Total Formula Revenue" per student of $7,675.97

So, total costs per student in PPS are at least $11,000 while the State School Fund pays PPS $7,675.97, or a net per student loss of $3,324.03. So why does PPS want to attract more students from outside the District? PPS resident students then just have to share their local revenues with more students from outside the district.

Added bonus: Here is part of the chart from the Board meeting material that shows this year's in and out transfers for PPS: 620 in, 191 out, for a net in of 429: