RT Journal Article SR Electronic T1 Does Improving a Firm's Environmental Management System and Environmental Performance Result in a Higher Stock Price? JF The Journal of Investing FD Institutional Investor Journals SP 87 OP 97 DO 10.3905/joi.1997.87 VO 6 IS 4 A1 Stanley J. Feldman A1 Peter A. Soyka A1 Paul G. Ameer YR 1997 UL https://pm-research.com/content/6/4/87.abstract AB