ISO 14001, EMAS and environmental performance: A meta‐analysis
Bibliographic record
Abstract
Abstract The adoption of voluntary environmental certifications such as ISO 14001 and Eco‐Management and Audit Scheme (EMAS) has gained momentum in the last two decades. The scholarly literature has analyzed in depth the performance implications of the adoption of these certificates. Yet the findings are scattered and inconclusive. This article aims to shed light on this issue by meta‐analyzing the influence of the adoption of voluntary environmental certifications on corporate environmental performance, drawing on a sample of 53 scholarly studies analyzing a total of 182,926 companies. The findings show a positive influence of ISO 14001 and EMAS certifications on corporate environmental performance. A set of underlying moderating effects are also identified, such as a more pronounced positive effect for adoptions based on environmental innovation and for firms with a more mature certification. Implications for scholars, managers, and other stakeholders are discussed.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.027 | 0.066 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.006 | 0.025 |
| Bibliometrics | 0.005 | 0.008 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.004 | 0.002 |
| Open science | 0.002 | 0.002 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".