TULSA, Oklahoma, Sept. 7 -- The University of Tulsa Collins College of Business posted the following news: * * * How do you measure the value of unstructured information? UTulsa research redefines the answer * Every day, companies generate massive amounts of information - earnings calls, corporate disclosures, patent filings, etc. Most of it is unstructured and goes underused. That is the focus of Nan Hu, Ph.D., Philip A. Chapman Chair in Accounting in The University of Tulsa's Collins College of Business, whose research examines how unstr more PR