Additional indicators proposed by experts
| Constructs | Indicators and code | Definition of indicators |
|---|---|---|
| Theory of planned behaviour | ||
| Attitude (A) | Education/knowledge (A4) | Stakeholders’ awareness, understanding and technical literacy around CE principles, practices and outcomes |
| Contract and procurement models (A5) | Structure, terms and specifications incorporated into contractual agreements and procurement procedures that affect the adoption of CE practices | |
| Subjective norms (SN) | Hierarchical influence (SN4) | Explains how supervisors or organisational leaders directly influence the norms and behaviours of their workforce, particularly in hierarchical industries like construction |
| Company vision/ internal culture (SN5) | The degree to which a company’s purpose or sustainability values influence individual decision-making | |
| Shareholder and reputational pressure (SN6) | The external pressure from investors that influences organisations to adopt sustainable practices | |
| Perceived behavioural control (PBC) | Digital platforms (PBC5) | Presence of digital systems that enable transparency, traceability and operational ease in CE implementation |
| Norm activation model | ||
| Personal norms (PN) | Social motivation and values (PN4) | Individual’s sense of responsibility or drive that arises from broader societal concerns rather than purely environmental or economic incentives |
| Morality (PN5) | An internal ethical framework that guides decisions about what is right or wrong | |
| Awareness of consequences (AC) | Existential threat (AC4) | Emotional reactions to environmental crises, such as fear of collapse or worry for future generations, are what motivate awareness |
| Consequences of inaction (AC5) | Understanding not just the benefits of CE but also the risks of continuing with business-as-usual practices | |
| Ascribed responsibility (AR) | Local impact awareness (AR4) | Feeling responsible when the consequences of their actions are tied to their immediate environment |
| Future harm and fear, and shame (AR5) | Emotional states that can trigger or strengthen One’s sense of moral obligation to act sustainably | |
| Constructs | Indicators and code | Definition of indicators |
|---|---|---|
| Attitude (A) | Education/knowledge (A4) | Stakeholders’ awareness, understanding and technical literacy around |
| Contract and procurement models (A5) | Structure, terms and specifications incorporated into contractual agreements and procurement procedures that affect the adoption of | |
| Subjective norms ( | Hierarchical influence (SN4) | Explains how supervisors or organisational leaders directly influence the norms and behaviours of their workforce, particularly in hierarchical industries like construction |
| Company vision/ internal culture (SN5) | The degree to which a company’s purpose or sustainability values influence individual decision-making | |
| Shareholder and reputational pressure (SN6) | The external pressure from investors that influences organisations to adopt sustainable practices | |
| Perceived behavioural control ( | Digital platforms (PBC5) | Presence of digital systems that enable transparency, traceability and operational ease in |
| Personal norms ( | Social motivation and values (PN4) | Individual’s sense of responsibility or drive that arises from broader societal concerns rather than purely environmental or economic incentives |
| Morality (PN5) | An internal ethical framework that guides decisions about what is right or wrong | |
| Awareness of consequences ( | Existential threat (AC4) | Emotional reactions to environmental crises, such as fear of collapse or worry for future generations, are what motivate awareness |
| Consequences of inaction (AC5) | Understanding not just the benefits of | |
| Ascribed responsibility ( | Local impact awareness (AR4) | Feeling responsible when the consequences of their actions are tied to their immediate environment |
| Future harm and fear, and shame (AR5) | Emotional states that can trigger or strengthen One’s sense of moral obligation to act sustainably | |
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