Results Based on Proprietary Data

Using data mining technology to query her employer's extensive customer database, an economist at a Fortune-100 company develops a predictive model.  She tests her model against real life events, as reflected by new entries into this same database.  She tabulates impressive results and submits an article to your academic journal.  During peer review, one reader comments that it would be impossible to reproduce the validity test results without having access to the proprietary corporate database, as no other comparable data is available, at least not in the public domain.  Would you accept the paper for publication under these circumstances?

C4L says:  Because the data belong to the employer, the employee should obtain permission from the owner to submit an article based on its use and the corporation should be cited or acknowledged in the article.