I didn't read the entire article yet, but I did read the abstract. While the thread title merits a "no shit" response, I think the more interesting finding is that applicants are less likely to whiten their resumes when applying to companies that value - or pretend to value - diversity:
"When targeting an employer that presents itself as valuing diversity, however, minority job applicants engage in relatively little résumé whitening and thus submit more racially transparent résumés. Yet, our audit study shows that organizational diversity statements are not actually associated with reduced discrimination against unwhitened résumés. Taken together, these findings suggest a paradox: Minorities may be particularly likely to experience disadvantage when they apply to ostensibly pro-diversity employers."