TY - JOUR T1 - Data as asset? The measurement, governance, and valuation of digital personal data by Big Tech JO - Big Data & Society UR - http://dx.doi.org/10.1177/20539517211017308 PY - 2021/05/16 AU - Birch K AU - Cochrane DT AU - Ward C ED - DO - DOI: 10.1177/20539517211017308 PB - SAGE Publications VL - 8 IS - 1 SP - 205395172110173 EP - 205395172110173 Y2 - 2025/07/23 ER -