Classification of articles research method and data sources
| Research method/data source | No. of articles | % |
|---|---|---|
| Document analysis | 63 | 58 |
| Sustainability reports | 39 | 62 |
| Annual reports | 20 | 31 |
| Other reports (i.e. BOD report, CPD report) | 7 | 11 |
| Non-report sources (database scores, Web page, announcements) | 6 | 95 |
| Archival data | 24 | 22 |
| Survey | 11 | 10 |
| Case study | 10 | 9 |
| Interviews | 9 | 8 |
| Experiment | 1 | 1 |
| Ethnography | 1 | 1 |
| 119* |
| Research method/data source | No. of articles | % |
|---|---|---|
| 63 | 58 | |
| Sustainability reports | 39 | 62 |
| Annual reports | 20 | 31 |
| Other reports (i.e. | 7 | 11 |
| Non-report sources (database scores, Web page, announcements) | 6 | 95 |
| Archival data | 24 | 22 |
| Survey | 11 | 10 |
| Case study | 10 | 9 |
| Interviews | 9 | 8 |
| Experiment | 1 | 1 |
| Ethnography | 1 | 1 |
| 119* |
*11 studies used multiple methods (i.e. interview + survey, interview + document analysis) and 20 articles in which document analyses were conducted used multiple sources to collect data (e.g. annual reports and sustainability reports). The percentages are relative to the total sample of 108 for research methodcategories and 63 for the source document categories
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