BENS, DANIEL A.; MONAHAN, STEVEN J. - In: Journal of Accounting Research 42 (2004) 4, pp. 691-730
For a sample of U.S. firm years from 1980 through 1996 we document a positive association between the excess value of diversification as defined by Berger and Ofek [1995] and security analyst ratings of voluntary disclosure as developed by the Association for Investment Management and Research....