Submitted:
08 September 2025
Posted:
11 September 2025
You are already at the latest version
Abstract
Keywords:
1. Introduction
2. Literature Review
2.1. Theoretical Review
2.2. Hypotheses Development
2.3. Research Gap
3. Data and Methods
3.1. Sample Selection
AI Integration Classification
3.2. Variable Specifications
3.3. Natural Language Processing (NLP) Feature Extraction Framework
3.3.1. Topic Taxonomy
3.3.2. Textual Indexes
3.4. Predictive Analytics Framework
3.5. Econometric Model Specifications
- (A)
- Elastic Net (linear, sparse and stable)
- (B)
- XGBoost (nonlinear, interactions)
Model Comparison Evolution
- i.
- Coefficient of determination (Out-of-Sample):
- ii.
- Root Mean Squared Error:
- iii.
- Mean Absolute Error:
4. Empirical Results
4.1. Descriptive Analysis
4.2. Correlation Analysis
4.3. T-Tests Analysis
4.4. Baseline Regression Results
4.5. Robustness Tests
4.6. Model Evaluation of Predictive Analytics
4.6.1. Classification Tasks
4.6.2. Feature Importance and Classification Performance
4.6.3. Confusion Analysis
5. Discussion of Findings
5.1. Theoretical Contributions
5.2. Managerial Implications
5.3. Policy Relevance
5.4. Limitations and Further Research
6. Conclusions
Abbreviations
| AI | Artificial Intelligence |
| AII | AI-Integrated |
| NAII | Non-AI Integrated |
| ESG | Environmental, Social, and Governance |
| ML | Machine Learning |
| NLP | Natural Language Processing |
| LDA | Latent Dirichlet Allocation |
| DTM-lite | Dynamic Topic Modeling (lite version) |
| OLS | Ordinary Least Squares |
| SVR | Support Vector Regression |
| RBV | Resource-Based View |
| ROA | Return on Assets |
| GDP | Gross Domestic Product |
| MAE | Mean Absolute Error |
| R2 | Coefficient of Determination |
| 2SLS | Two-Stage Least Squares |
| PSM | Propensity Score Matching |
| ATE | Average Treatment Effect |
| CSR | Corporate Social Responsibility |
| KPI | Key Performance Indicator |
| R&D | Research and Development |
Appendix A
| Component | Description | Score/Weight | Notes/Clarification |
|---|---|---|---|
| Scoring Scale | No Evidence/Not Mentioned | 0 | No public or internal indication of AI use in ESG processes |
| Exploratory Pilot/Initial Testing | 1 | Early-stage projects, R&D, or trials, but not consistent or formal | |
| Partial Use (<50% of ESG activities) | 2 | AI used in isolated ESG functions or internally only | |
| Broad Use (in multiple ESG operations or reports) | 3 | Integrated across several ESG tools or included in disclosures | |
| Strategic Integration (Core to ESG policy and reporting standards) | 4 | Institutionalized AI in ESG strategy, with clear visibility in external reporting | |
| Feature Weights | Machine Learning | 30% | Core for predictions, classification, and financial-environmental modeling |
| Natural Language Processing (NLP) | 20% | Crucial for text mining, sentiment analysis, and regulatory parsing | |
| Automated ESG Scoring Tools | 30% | Key for standardized benchmarking and investor communications | |
| AI-Driven Analytics | 20% | Useful for real-time ESG monitoring and dashboard reporting | |
| Scoring Formula | Normalized Weighted Score | – | ![]() |
| Integration Levels | Low | 0–30% | Little to no meaningful adoption |
| Moderate | 31–60% | Some integration but fragmented or informal | |
| Strong | 61–80% | High-functioning AI use, consistent across several ESG areas | |
| Advanced | 81–100% | AI is an embedded, strategic tool in ESG governance and disclosures |
| Year | Topic 0 | Topic 1 | Topic 2 |
|---|---|---|---|
| 2018 | 0.489626 | 0.187525 | 0.322849 |
| 2019 | 0.352826 | 0.211438 | 0.435736 |
| 2020 | 0.196337 | 0.481482 | 0.322182 |
| 2021 | 0.37969 | 0.138141 | 0.482169 |
| 2022 | 0.275539 | 0.29565 | 0.428811 |
| 2023 | 0.500339 | 0.344187 | 0.155474 |
| 2024 | 0.330911 | 0.303754 | 0.365335 |
| Feature | OLS/Baseline | Elastic Net (Regularized selection) |
XGBoost (Tree-based importance) |
SVR (PCA-compressed) |
|---|---|---|---|---|
| AI-Integrated ESG Indicator | ✔ | ✔ | ✔ | ✔ |
| ESG Overall Score | ✔ | ✔ | ✔ | ✔ |
| Return on Assets (ROA) | ✔ | ✔ | ✔ | ✔ |
| ln (Firm Assets) | ✔ | ✔ | ✔ | |
| Institutional Ownership (%) | ✔ | ✔ | ✔ | ✔ |
| R & D Intensity | ✔ | ✔ | ✔ | ✔ |
| Industry FE (Tech Sector) | ✔ | ✔ | ||
| Country GDP Growth | ✔ | ✔ | ✔ | |
| Governance Score | ✔ | ✔ | ||
| Social Score | ✔ | ✔ | ||
| Environmental Score | ✔ | ✔ |
| Metric | AI-Integrated ESG (High Valuation) | Non-AI ESG (Low Valuation) | Overall |
|---|---|---|---|
| True Positives (TP) | 48 | 71 | – |
| False Positives (FP) | 0 | 1 | – |
| False Negatives (FN) | 0 | 1 | – |
| True Negatives (TN) | 72 | 48 | – |
| Accuracy | – | – | 99.31% |
| Precision | 100% | 98.61% | – |
| Recall (Sensitivity) | 100% | 98.61% | – |
| F1 Score | 100% | 98.61% | 99.30% |
| AUC-ROC (est.) | – | – | >0.99 |
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| Country | Manufacturing | Energy | Telecommunications | Consumer Goods | Industrials | Total Firms |
|---|---|---|---|---|---|---|
| South Africa | 12 | 10 | 8 | 8 | 7 | 45 |
| Nigeria | 8 | 6 | 6 | 6 | 4 | 30 |
| Egypt | 5 | 3 | 4 | 4 | 4 | 20 |
| Kenya | 3 | 3 | 1 | 5 | 3 | 15 |
| Morocco | 2 | 3 | 1 | 2 | 2 | 10 |
| Total | 30 | 25 | 20 | 25 | 20 | 120 |
| Step | Procedure | Description | Output |
|---|---|---|---|
| 1 | Keyword Extraction | Automated identification of AI-related terms (“machine learning,” “NLP,” “automated ESG scoring,” “AI-driven analytics”) from sustainability and annual reports. | Initial pool of AI-related text passages. |
| 2 | Contextual Filtering | Rule-based co-occurrence checks requiring AI terms to appear alongside ESG-related concepts (“sustainability,” “disclosure,” “reporting”). | Reduced dataset containing only ESG-relevant AI references. |
| 3 | Coding Framework | Application of structured coding scheme to classify firms as AI-integrated (1) or non-AI-integrated (0) based on explicit evidence in ESG disclosures. | Preliminary binary classification variable. |
| 4 | Reliability Testing | Subsample independently coded by multiple researchers; intercoder reliability evaluated using Cohen’s Kappa and Krippendorff’s Alpha. | Validated and consistent coding results. |
| 5 | Final Integration | Consolidation of validated coding decisions into the panel dataset for econometric analysis. | Final AI-integration dummy variable used in regression models. |
| Country | Manufacturing | Energy | Telecommunications | Consumer Goods | Industrials | Total AI Firms |
|---|---|---|---|---|---|---|
| South Africa | 6 | 5 | 5 | 3 | 3 | 22 |
| Nigeria | 3 | 2 | 3 | 2 | 1 | 11 |
| Egypt | 2 | 1 | 2 | 1 | 1 | 7 |
| Kenya | 1 | 1 | 0 | 2 | 1 | 5 |
| Morocco | 1 | 1 | 0 | 1 | 0 | 3 |
| Total | 13 | 10 | 10 | 9 | 6 | 48 |
| Variable | Type | Definition/Measurement | Scale/Unit | Data Source(s) |
|---|---|---|---|---|
| Dependent Variables | ||||
| Tobin’s Q | Dependent | (Market Value of Equity + Book Value of Debt) ÷ Book Value of Total Assets | Continuous (ratio) | Bloomberg; Refinitiv; Capital IQ |
| Market-to-Sales Multiple | Dependent | Enterprise Value ÷ Annual Sales Revenue | Continuous (ratio) | Bloomberg; Refinitiv; Capital IQ |
| Traditional ESG Metrics | ||||
| ESG Score (aggregate) | Independent | Overall ESG percentile score (0–100) | 0–100 percentile rank | Refinitiv ESG; MSCI ESG Ratings |
| Environmental Score (E) | Independent | ESG sub-score for environmental policies | 0–100 percentile rank | Refinitiv ESG; MSCI ESG Ratings |
| Social Score (S) | Independent | ESG sub-score for social performance | 0–100 percentile rank | Refinitiv ESG; MSCI ESG Ratings |
| Governance Score (G) | Independent | ESG sub-score for governance quality | 0–100 percentile rank | Refinitiv ESG; MSCI ESG Ratings |
| ESG Controversy Indicator | Independent | 100 − Controversy Score (higher = more controversies) | 0–100 scale | Refinitiv ESG |
| AI-Related Metrics | ||||
| AI-Integrated ESG Reporting | Independent | Dummy = 1 if firm explicitly reports AI use in ESG disclosure | Binary (0/1) | Constructed from manual/document review |
| Sentiment Score | AI-derived | NLP-based measure of positive/negative tone | Continuous | Custom NLP analysis |
| Sustainability Topics | AI-derived | Topic proportions derived via LDA | Continuous (0–1) | Custom NLP analysis |
| Linguistic Complexity Index | AI-derived | Sentence length and vocabulary diversity measures | Continuous index | Custom NLP analysis |
| Readability Metrics | AI-derived | Indices such as FOG/Gunning Fog | Continuous index | Custom NLP analysis |
| Control Variables | ||||
| Firm Size | Control | Logarithm of total assets | Continuous (log USD) | Bloomberg; Refinitiv; Capital IQ |
| Profitability (ROA) | Control | Net income ÷ total assets | Continuous (ratio) | Bloomberg; Refinitiv; Capital IQ |
| Institutional Ownership | Control | % of shares held by institutional investors | Continuous (%) | Bloomberg; Refinitiv; Capital IQ |
| GDP Growth | Control | Annual real GDP growth rate | Continuous (%) | World Bank; IMF |
| Inflation | Control | Annual % change in consumer price index | Continuous (%) | World Bank; IMF |
| Currency Adjustment | Data handling | Conversion of financial figures to USD using annual average exchange rates | USD | World Bank |
| ESG Pillar | Topic ID | Topic Name | Illustrative Keywords |
|---|---|---|---|
| Governance | 0 | ESG Linked Performance and Compliance | ESG-linked KPIs, executive compensation, supply chain, fair labor, audits |
| Social | 1 | Community Engagement and Workforce Development | CSR programs, community engagement, education and healthcare, workforce skills |
| Governance | 2 | Governance, Transparency and Data Security | Board independence, transparency, monitoring tools, privacy, data security |
| Country | Sentiment Score | Linguistic Complexity Index | Readability Metric |
|---|---|---|---|
| Egypt | -0.14073 | 0.469098 | 13.22963 |
| Kenya | -0.00535 | 0.484692 | 13.52701 |
| Morocco | 0.050897 | 0.483445 | 12.98981 |
| Nigeria | -0.18912 | 0.364712 | 10.90439 |
| South Africa | -0.03071 | 0.580439 | 13.57511 |
| Country | Nigeria (n=30) |
South Africa (n=45) |
Egypt (n=20) |
Kenya (n=15) |
Morocco (n=10) |
|---|---|---|---|---|---|
| Variable | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) |
| Tobin’s Q | 1.12 (0.40) | 1.32 (0.50) | 1.21 (0.42) | 1.18 (0.39) | 1.15 (0.35) |
| M/S Multiple | 2.50 (0.90) | 2.85 (1.15) | 2.60 (1.05) | 2.70 (1.00) | 2.45 (0.85) |
| ESG Overall Score | 48.3 (16.8) | 56.2 (17.5) | 50.1 (18.2) | 49.4 (16.1) | 45.8 (15.7) |
| Environmental Score (E) | 42.1 (18.2) | 48.7 (19.4) | 43.2 (17.9) | 40.8 (18.7) | 39.5 (16.3) |
| Social Score (S) | 47.9 (17.6) | 54.1 (16.3) | 48.5 (18.5) | 46.7 (17.1) | 44.2 (15.2) |
| Governance Score (G) | 58.2 (14.7) | 62.9 (13.9) | 59.3 (15.0) | 57.4 (14.2) | 55.8 (13.8) |
| ESG Controversy Indicator | 21.5 (18.0) | 25.3 (17.5) | 22.1 (17.8) | 20.7 (16.9) | 19.9 (15.5) |
| AI-Integrated ESG Reporting % | 20.0 | 35.5 | 25.0 | 18.0 | 15.0 |
| Sentiment Score | 0.09 (0.27) | 0.18 (0.32) | 0.12 (0.30) | 0.10 (0.26) | 0.07 (0.22) |
| Sustainability Topics (LDA) | 0.23 (0.09) | 0.30 (0.11) | 0.25 (0.10) | 0.22 (0.08) | 0.20 (0.07) |
| Linguistic Complexity Index | 17.3 (3.5) | 19.4 (3.8) | 18.1 (3.4) | 16.9 (3.2) | 16.5 (3.1) |
| Readability Metrics | 15.1 (2.8) | 14.2 (3.0) | 14.8 (2.9) | 15.5 (2.7) | 15.9 (2.5) |
| Firm Size (log assets) | 14.2 (0.9) | 14.9 (1.1) | 14.4 (1.0) | 14.3 (0.8) | 14.1 (0.7) |
| Profitability (ROA, %) | 5.9 (3.8) | 6.5 (4.2) | 6.1 (3.9) | 5.8 (3.5) | 5.4 (3.2) |
| Institutional Ownership (%) | 35.2 (20.5) | 42.6 (21.3) | 36.1 (19.8) | 34.5 (18.7) | 32.4 (17.2) |
| GDP Growth (%) | 3.1 (1.2) | 3.4 (1.4) | 3.0 (1.3) | 2.8 (1.1) | 2.6 (1.0) |
| Inflation Rate (%) | 7.2 (2.1) | 6.3 (2.5) | 6.8 (2.3) | 7.5 (2.0) | 7.9 (1.9) |
| Variable | Mean | Median | Maximum | Minimum | Std. Dev. | Skewness | Kurtosis |
|---|---|---|---|---|---|---|---|
| Tobin’s Q | 1.22 | 1.09 | 1.3 | 0.95 | 0.11 | 0.62 | 0 |
| Market-to-Sales Multiple | 2.62 | 2.65 | 3.2 | 2.1 | 0.34 | 0 | -0.61 |
| ESG Composite Score | 49.96 | 50 | 70 | 30 | 10 | -0.04 | -0.35 |
| Environmental | 42.86 | 43 | 65 | 25 | 8.5 | 0.1 | -0.5 |
| Social | 48.28 | 48 | 70 | 30 | 9.2 | 0.05 | -0.4 |
| Governance | 58.72 | 59 | 75 | 40 | 7.5 | -0.15 | -0.45 |
| AI Integration | 0.6 | 1 | 1 | 0 | 0.52 | -0.48 | -2.28 |
| Sentiment Analysis | 0.11 | 0.1 | 0.5 | -0.2 | 0.15 | 0.2 | -0.3 |
| Linguistic Complexity Index | 17.64 | 17.6 | 20 | 15 | 1.2 | 0.15 | -0.25 |
| Readability Score | 15.1 | 15 | 18 | 12 | 1 | 0.05 | -0.2 |
| Firm Size (Log Assets) | 14.62 | 14.6 | 15.1 | 14.2 | 0.29 | 0.3 | -0.65 |
| Return on Assets (%) | 6.28 | 6.25 | 7 | 5.5 | 0.48 | -0.06 | -0.84 |
| Institutional Ownership (%) | 38.5 | 38.5 | 45 | 30 | 4.35 | -0.44 | 0.38 |
| Variable | VIF | (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (1) | ESG Overall Score | 5.3 | 1.00 | ||||||||||
| (2) | Environmental Score | 7.2 | 0.88 | 1.00 | |||||||||
| (3) | Social Score | 6.5 | 0.82 | 0.67 | 1.00 | ||||||||
| (4) | Governance Score | 5.9 | 0.80 | 0.65 | 0.62 | 1.00 | |||||||
| (5) | ESG Controversy Indicator | 2.1 | -0.50 | -0.45 | -0.42 | -0.47 | 1.00 | ||||||
| (6) | AI-Integrated ESG Reporting | 1.5 | 0.30 | 0.28 | 0.25 | 0.33 | -0.28 | 1.00 | |||||
| (7) | Sentiment Score | 2.0 | 0.22 | 0.19 | 0.17 | 0.20 | -0.16 | 0.35 | 1.00 | ||||
| (8) | Linguistic Complexity Index | 2.4 | 0.25 | 0.21 | 0.20 | 0.23 | -0.18 | 0.40 | 0.45 | 1.00 | |||
| (9) | Firm Size (log assets) |
3.1 | 0.45 | 0.40 | 0.30 | 0.42 | -0.20 | 0.38 | 0.28 | 0.30 | 1.00 | ||
| (10) | Profitability (ROA) | 1.7 | 0.20 | 0.15 | 0.18 | 0.23 | -0.10 | 0.14 | 0.12 | 0.16 | 0.30 | 1.00 | |
| (11) | Institutional Ownership | 2.5 | 0.38 | 0.32 | 0.35 | 0.40 | -0.25 | 0.26 | 0.24 | 0.29 | 0.50 | 0.32 | 1.00 |
| Variable | Mean AI |
SD AI |
N AI |
Mean Non-AI |
SD Non-AI |
N Non-AI |
T stat | P value | Mean Diff. | Cohen’s d |
|---|---|---|---|---|---|---|---|---|---|---|
| Tobin’s Q | 1.39 | 0.42 | 336 | 1.16 | 0.37 | 864 | 9.12 | 0.001 | +0.23 | 0.597967 |
| ESG Overall Score | 61.8 | 15.2 | 336 | 49.2 | 16.9 | 864 | 11.75 | 0.001 | +12.6 | 0.766314 |
| Sentiment Score | 0.18 | 0.28 | 336 | 0.09 | 0.24 | 864 | 4.9 | 0.001 | +0.09 | 0.35739 |
| Linguistic Complexity | 19.2 | 3.8 | 336 | 17.5 | 3.4 | 864 | 7.3 | 0.001 | +1.7 | 0.483444 |
| Variable | Model 1 | Model 2 | Model 3 | Model 4 (Full) |
|---|---|---|---|---|
| AI-Integrated ESG Reporting | 0.102*** (8.91) |
0.089*** (7.88) |
0.084*** (7.55) |
0.081*** (7.34) |
| ESG Overall Score | 0.0041*** (5.64) |
0.0040*** (5.58) |
0.0039*** (5.45) |
|
| AI × ESG Overall Score | 0.0024 (1.03) |
|||
| Firm Size (log assets) | 0.110*** (9.85) |
0.113*** (10.12) |
0.117*** (10.36) |
|
| ROA | 0.0068*** (4.70) |
0.0072*** (4.92) |
0.0075*** (5.10) |
|
| Institutional Ownership | 0.0009* (1.93) |
0.0010* (2.01) |
||
| GDP Growth | 0.0041* (1.94) |
0.0043* (2.05) |
||
| Inflation Rate | -0.0028* (-1.92) |
-0.0031* (-2.08) |
||
| Sentiment Score | 0.013* (1.92) |
0.014** (2.11) |
||
| Sustainability Topics (LDA) | 0.007* (1.95) |
0.009** (2.24) |
||
| Linguistic Complexity Index | 0.005* (1.92) |
0.006** (2.14) |
||
| Readability (Gunning-Fog) | -0.011* (-1.97) |
-0.010* (-1.88) |
||
| Year Fixed Effects | Yes | Yes | Yes | Yes |
| Firm Fixed Effects | No | No | Yes | Yes |
| R2 | 0.358 | 0.443 | 0.579 | 0.602 |
| Adjusted R2 | 0.228 | 0.332 | 0.451 | 0.479 |
| Observations | 1,200 | 1,200 | 1,200 | 1,200 |
| Variable | Model 1 | Model 2 | Model 3 | Model 4 (Full) |
|---|---|---|---|---|
| AI-Integrated ESG Reporting | 0.109*** (9.03) |
0.098*** (8.15) |
0.096*** (7.92) |
0.094*** (7.61) |
| ESG Overall Score | 0.0037*** (5.45) |
0.0036*** (5.38) |
0.0035*** (5.23) |
|
| AI × ESG Overall Score | 0.0018 (0.91) |
|||
| Firm Size (log assets) | 0.138*** (10.11) |
0.141*** (10.45) |
0.145*** (10.66) |
|
| ROA | 0.0074*** (4.85) |
0.0078*** (5.01) |
0.0080*** (5.23) |
|
| Institutional Ownership | 0.0011* (1.94) |
0.0013* (2.02) |
||
| GDP Growth | 0.0040* (1.88) |
0.0042* (2.01) |
||
| Inflation Rate | -0.0034* (-1.93) |
-0.0038* (-2.11) |
||
| Sentiment Score | 0.012* (1.90) |
0.013** (2.15) |
||
| Sustainability Topics (LDA) | 0.008* (1.94) |
0.009** (2.20) |
||
| Linguistic Complexity Index | 0.006* (1.89) |
0.007** (2.17) |
||
| Readability (Gunning-Fog) | -0.009* (-1.91) |
-0.008* (-1.84) |
||
| Year Fixed Effects | Yes | Yes | Yes | Yes |
| Firm Fixed Effects | No | No | No | No |
| R2 | 0.366 | 0.454 | 0.570 | 0.581 |
| Adjusted R2 | 0.239 | 0.344 | 0.452 | 0.456 |
| Observations | 1,200 | 1,200 | 1,200 | 1,200 |
| (Tobin’s Q) | (M/S Multiple) | ||
|---|---|---|---|
| Method | Variable | Coefficient (95% CI) p-Value |
Coefficient 95% CI p-Value |
| Panel A | |||
| Instrumental Variables (2SLS) | |||
| Instruments: Lagged AI ESG, Oxford AI Readiness Index | Predicted AI-Integrated ESG | 0.061*** (0.015, 0.107) 0.012 |
0.067*** (0.018, 0.116) 0.009 |
| ESG Overall Score | 0.0038*** (0.0016, 0.0060) <0.001 |
0.0035*** (0.0012, 0.0058) 0.002 |
|
| First-stage F-statistic | 19.45 | 17.83 | |
| Observations | 1,080 | 1,080 | |
| Year, Firm Fixed Effects | Yes | Yes | |
| Panel B | |||
| Propensity Score Matching | |||
| Nearest Neighbor | Average Treatment Effect (ATE) | 0.073*** (0.032, 0.114) 0.001 |
0.079*** (0.037, 0.121) 0.001 |
| Kernel | Average Treatment Effect (ATE) | 0.070*** (0.033, 0.107) <0.001 |
0.075*** (0.034, 0.116) <0.001 |
| Matched Observations (N) | 672 | 672 | |
| Panel C | |||
| Lagged Models | |||
| AI-Integrated ESG Reporting | 0.055*** (0.016, 0.094) 0.006 |
0.059*** (0.020, 0.098) 0.004 |
|
| Lagged ESG Overall Score | 0.0032*** 0.0010, 0.0054) <0.001 |
0.0030*** (0.0007, 0.0053) 0.010 |
|
| Observations | 1,080 | 1,080 | |
| Year, Firm Fixed Effects | Yes | Yes |
| Variable | Train Min | Train Max | Train Mean | Validation Min | Validation Max | Validation Mean | Test Min | Test Max | Test Mean |
|---|---|---|---|---|---|---|---|---|---|
| Tobin’s Q | 0.75 | 2.1 | 1.32 | 0.8 | 2 | 1.3 | 0.85 | 2.15 | 1.34 |
| M/S Multiple | 1.25 | 3.5 | 2.65 | 1.3 | 3.4 | 2.6 | 1.35 | 3.6 | 2.68 |
| Traditional ESG Score | 40 | 95 | 63 | 42 | 92 | 61 | 45 | 97 | 64 |
| Environmental Score | 35 | 90 | 59 | 37 | 87 | 57 | 40 | 92 | 60 |
| Social Score | 38 | 92 | 60 | 39 | 89 | 58 | 42 | 94 | 61 |
| Governance Score | 50 | 98 | 65 | 52 | 95 | 63 | 54 | 99 | 67 |
| ESG Controversy Indicator | 10 | 45 | 25 | 12 | 43 | 24 | 14 | 48 | 26 |
| AI-Integrated ESG Reporting | 0 | 1 | 0.35 | 0 | 1 | 0.3 | 0 | 1 | 0.38 |
| Sentiment Score | -0.15 | 0.35 | 0.1 | -0.12 | 0.32 | 0.09 | -0.1 | 0.38 | 0.11 |
| Sustainability Topics | 0.05 | 0.65 | 0.22 | 0.06 | 0.6 | 0.21 | 0.07 | 0.68 | 0.23 |
| Linguistic Complexity Index | 10.5 | 23.5 | 18 | 11 | 22.8 | 17.6 | 11.5 | 24 | 18.3 |
| Readability Metrics | 9 | 21 | 14.5 | 10 | 20 | 14.2 | 10.5 | 22 | 14.8 |
| Firm Size | 12.5 | 16 | 14 | 12.7 | 15.8 | 13.8 | 13 | 16.5 | 14.3 |
| Profitability (ROA) | 2.5 | 10.5 | 6.2 | 3 | 10.2 | 6 | 3.5 | 11 | 6.3 |
| Institutional Ownership | 20 | 70 | 45 | 22 | 68 | 44 | 24 | 72 | 46 |
| GDP Growth | 2 | 7 | 4.5 | 2.3 | 6.8 | 4.3 | 2.5 | 7.2 | 4.6 |
| Inflation Rate | 3.5 | 10.5 | 6.1 | 3.8 | 10 | 6 | 4 | 11 | 6.2 |
| Model | R2 (± 95% CI) | RMSE (± CI) | MAE (± CI) | Statistical Significance | Test Used |
|---|---|---|---|---|---|
| OLS (Baseline 1) |
0.49 ± 0.03 | 0.172 ± 0.007 | 0.127 ± 0.006 | ||
| Elastic Net (Baseline 2) | 0.55 ± 0.02 | 0.165 ± 0.006 | 0.115 ± 0.005 | p = 0.041 vs. OLS | Paired t-test |
| Random Forest | 0.62 ± 0.02 | 0.148 ± 0.005 | 0.102 ± 0.004 | p = 0.003 vs. Elastic Net | Wilcoxon signed-rank |
| XGBoost | 0.68 ± 0.02 | 0.128 ± 0.004 | 0.091 ± 0.003 | p < 0.001 vs. RF and all others | Wilcoxon signed-rank |
| SVR | 0.51 ± 0.03 | 0.170 ± 0.008 | 0.121 ± 0.006 | p = 0.146 vs. OLS (Not significant) | Paired t-test |
| Metric | XGBoost | Target | Gap |
|---|---|---|---|
| Accuracy | 96.8 ± 0.3% | ≥ 98.5% | +0.7 |
| F1 Score | 0.975 ± 0.01 | ≥ 0.99 | +0.01 |
| Precision (Class 1) | 0.935 ± 0.01 | ≥ 0.96 | +0.02 |
| Recall (Class 1) | 0.996 ± 0.00 | 1.00 | None |
| ROC-AUC | 0.987 ± 0.01 | > 0.99 | None |
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