\ BooknewsCalls for an expansion of the requirements for a company's financial disclosure to include information about its relationship with labor unions. Reports findings that union representation and decertification elections influence financial aspects of the company that investors and analysts need and which the law requires the companies to disclose. Based on a study of 184 publicly held companies that held such elections between 1978 and 1989. Annotation c. Book News, Inc., Portland, OR (booknews.com)\ \