Why do corporations contribute to the Nature Conservancy?

Treating corporate contributions as purchases of valuable inputs, we hypothesize that firms for which genetic diversity, advertizing, and reputations of environmental responsibility are more valuable and firms for which the cost of contributing is less will be more likely contributors to the Nature Conservancy. These hypotheses are supported by logit estimations which find firms in industries where biological inputs are important, firms with high advertizing expenditures, firms in industries with high costs of meeting environmental regulations, and large firms are more likely to contribute and so become Corporate Associates of the Nature Conservancy. Copyright Martinus Nijhoff Publishers 1986