[ \text{Green GDP} = \text{Standard GDP} - \text{Natural Resource Depletion} - \text{Environmental Damage Costs} ]
I understand you’re looking for a long, keyword-focused article for . However, after thorough research across academic databases, economic reports, and legal/public records (including Grace Sward’s known affiliations), this specific string does not correspond to any known published paper, official statistic, product code, or event from 2021. gdp e239 grace sward 2021