Constructing meaningful environmental indices: A nonparametric frontier approach

Constructing meaningful environmental indices: A nonparametric frontier approach

Environmental information disclosure programs seek to motivate firms to reduce their environmental impact. A variety of environmental impacts are reported in these programs and often this information is aggregated into a composite environmental index (CEI) for easier communication. The challenge is...

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Bibliographic Details
Published in:Journal of environmental economics and management Vol. 85; pp. 21 - 34
Main Authors: Zhou, P., Delmas, M.A., Kohli, A.
Format: Journal Article
Language:English
Published: Elsevier Inc 01-09-2017
Subjects:
C43
C61
Data envelopment analysis
Environmental index
Environmental performance
Measurability
Q50
Toxic release inventory (TRI)
Environmental index
Measurability
C43
Environmental performance
Toxic release inventory (TRI)
Q50
C61
Data envelopment analysis
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Summary:Environmental information disclosure programs seek to motivate firms to reduce their environmental impact. A variety of environmental impacts are reported in these programs and often this information is aggregated into a composite environmental index (CEI) for easier communication. The challenge is to create a meaningful index that allows environmental performance to be compared over time and space without ambiguity. In this paper, we argue that it is important to develop a cardinally meaningful and standardized CEI and use a nonparametric frontier approach to constructing such an index. This approach has the advantage to handle issues associated with data irregularity and the mixed measurability of underlying variables. We apply this approach to constructing a CEI for evaluating the environmental performance of manufacturing facilities in different industrial sectors in Los Angeles based on data from the toxic release inventory. We show how the CEI can be used to improve facility-level environmental performance. A sensitivity analysis is conducted with respect to the uncertainty in data accuracy, which demonstrates the robustness of the nonparametric frontier approach in constructing meaningful environmental indices. •There is a need to construct cardinally meaningful composite environmental indices.•Nonparametric frontier method can be used for constructing such indices.•We construct facility-level CEIs based on TRI data in Los Angeles County.
ISSN:0095-0696
1096-0449
DOI:10.1016/j.jeem.2017.04.003