> Unlike most OECD databases, which rely on government data provided at country-level, the OECD MAGIC database uses firm-level data. The subsidy estimates included in the database are based on raw data obtained from firms’ annual reports, financial statements, bond prospectuses, IPO prospectuses, etc. The data are collected and verified manually by the OECD to maximise accuracy, consistency, and comparability. In some cases, additional information is also obtained from government databases, either to verify the firm-level information or to complement it. Care is taken to avoid double-counting where the data mix corporate and government sources.
OECD isn’t the EU.
And regarding the dataset:
> Unlike most OECD databases, which rely on government data provided at country-level, the OECD MAGIC database uses firm-level data. The subsidy estimates included in the database are based on raw data obtained from firms’ annual reports, financial statements, bond prospectuses, IPO prospectuses, etc. The data are collected and verified manually by the OECD to maximise accuracy, consistency, and comparability. In some cases, additional information is also obtained from government databases, either to verify the firm-level information or to complement it. Care is taken to avoid double-counting where the data mix corporate and government sources.