An analysis of the wealth effects of green marketing strategies

Event study methodology is used to examine the wealth effects, or stock price reactions, to corporate announcements of green marketing activities. Two procedures for measuring stock price reactions and two different tests of significance are used in the study. The results for the sample of 73 firms show that the market value for the average firm in the sample declines by 3.14% during the period from 10 days prior to 10 days after the news is announced. Announcements related to green products, recycling efforts, and appointments of environmental policy managers result in insignificant stock price reactions. However, announcements for green promotional efforts produce significantly negative stock price reactions. Sampling by financial and operational characteristics shows that firms with higher growth in earnings, larger firms, and firms with higher advertising-to-sales ratios experience relatively less negative stock price reactions. Managerial implications of the results and directions for future research are also presented. (C) 2000 Elsevier Science Inc. All rights reserved.