Table 3

Use of coding for model development

Sample participant quoteFirst-order conceptsSecond-order themesAggregate dimensionsResource logic
• “Today, being a Financial Expert also includes knowing the sustainability reporting requirements” (BM33)Knowledge of sustainability regulation (CSRD, ESRS, AktG §100) and transparency duties is core to expertiseSubstantive content of sustainability expertiseConstructing sustainability expertise as a shared capabilityRBV-grounded internal capability built under RDT-driven external expectations: boards convert under-specified external competence demands into a collectively defined, self-credentialled capability. Underpins Stage 1 of the process model (Figure 1)
• “You must understand sustainability aspects in the context of company strategy, business model, risk management and reporting” (BM33)Ability to link sustainability with strategy, business model, risk management and financial performance
• “For me it's a holistic view on the company's long-term ability to exist, inside-out and outside-in” (BM34)Holistic view on the firm's long-term viability (inside-out and outside-in)
• “You have to see the goal conflicts – profitability versus investments in sustainable projects” (BM33)Recognising and managing trade-offs between sustainability goals and profitability (e.g. dividends vs investments)
• “Social sustainability is basically in the DNA of every union representative on the board” (BM34)Social sustainability competence is viewed as the “DNA” of union-linked employee representatives
• “Ecological sustainability I wouldn't really claim for myself; that's not my core expertise” (BM34)Environmental expertise is often narrower and strongly industry-specific, especially among employee representatives
• “I completed an ESG performance management certificate at a business school” (BM33)Formal certifications and courses used to evidence expertiseCredentials, shared definitions and learning processes
• “We first had to define together what we actually understand by sustainability expertise” (BM06)Boards run internal processes to agree what “sustainability expertise” means in the competence matrix
• “Identification is mostly self-evaluation – people tick the box themselves” (BM08)Self-evaluation in competence profiles dominates identification of sustainability experts
• “Gaining expertise happens through regular deep dives and workshops for the whole board and committees” (BM29)Board-wide trainings, workshops and deep dives are central to building a shared ESG literacy baseline
• “There is no test – it's checked rather through the work itself and our documentations” (BM08)Systematic testing or external assurance of individual expertise is rare; “proof” is mainly work output
• “We have several former CEOs who already worked intensively with CO2 and sustainability topics” (BM22)Selection of shareholder representatives stresses prior CEO/board roles and sectoral sustainability experience
• “Employee representatives gain such expertise mostly through training – for example via the Hans-Böckler-Stiftung” (BM25)Employee representatives acquire ESG knowledge mainly via union foundations and targeted trainingDifferent acquisition channels and knowledge basesDistributing and combining expertise across the shareholder and employee benchesThe two resource logics embodied in the benches: shareholder representatives carry RDT-facing external, regulatory and capital-market resources; employee representatives carry RBV-facing internal, operational and workforce resources, combined and reconciled across benches. Underpins Stage 2 of the process model (Figure 1)
• “We bring the practical part – direct knowledge from operations that lets us judge social impacts” (BM23)Employee representatives contribute granular operational knowledge on working conditions and social impacts
• “The shareholder side brings a lot of scientific and theoretical knowledge, plus a strong capital-market perspective” (BM22)Shareholder representatives contribute more theoretical, regulatory and capital-market driven ESG perspectives
• “Employee representatives focus on the S, while the capital side rather emphasizes E and G topics” (BM23)Employee side tends to prioritise social (S) issues; shareholder side stresses environmental (E) and governance (G) topicsDivergent sustainability priorities and time horizons
• “We usually think in longer time horizons, the capital side is still very capital-market-oriented” (BM33)Employee representatives adopt a longer-term, stakeholder-oriented time horizon than the capital side
• “Overall the cooperation is very appreciative; both sides see the different expertise they bring” (BM24)Collaboration between the two banks is often described as respectful and complementary rather than confrontational
• “There are goal conflicts – for example how much dividend we pay out versus investing in new circular models” (BM05)Conflicts arise mainly around resource allocation and distributional issues (dividends, investment pace, job security)
• “Basically, the one who knows the topic best has the greatest weight – good arguments convince” (BM33)Members with deepest subject-matter expertise, or a committee chair, often carry greatest weight in discussionsFormal and informal influence channelsMobilising expertise into influence through governance channelsGovernance channels arbitrate the two logics and convert expertise into influence: committee gateways, agenda-setting and chair authority, and informal/cross-bench coordination determine whether expertise is confined to compliance or extended to strategic integration. Underpins Stage 3 of the process model (Figure 1)
• “If there is no sustainability committee, the chair of the supervisory board has the greatest weight, as in all topics” (BM12)Where no sustainability committee exists, the board chair dominates ESG topics like other strategic issues
• “In the audit committee ESG is an extra topic, it's not yet a strategic core issue” (BM30)Audit committees are key loci for sustainability, but ESG is treated mainly as an additional reporting topic
• “A sustainability committee isn't mere symbolism – they really have work to do and are weighted like other committees” (BM35)Dedicated sustainability committees exist in some firms; their effectiveness depends on integration with the main board
• “It is often more effective to work directly with the management responsible for operations than to merely raise a critical question during the meeting” (BM04)Informal networks and direct work with operative management can be more impactful than formal board debate
• “The co-determination structure clearly reinforces sustainability – it lets us raise internal and external pressure” (BM05)Codetermination is widely perceived as a catalyst that strengthens sustainability anchoring on the boardCodetermination and political context
• “How should we transform companies if we don't think employment along with it? Co-determination makes that unavoidable” (BM30)Codetermination brings a stronger voice for social issues and employment impacts in transformation debates
• “In the supervisory board, you share full corporate responsibility; sustainability cannot be delegated to an expert” (BM21)Some shareholder representatives stress that all members share ESG responsibility and resist “delegating” it to a few experts
• “The political rollback, especially in the US, removed a lot of support that capital markets once gave to sustainability” (BM35)Regulatory complexity and political backlash are seen as external obstacles to deeper ESG integration

Note(s): Gioia-style data structure. The three aggregate dimensions correspond to the three stages of the process model in Figure 1 and to the findings sub-sections. The final column states the resource logic each dimension expresses, clarifying how resource dependence (external) and resource-based (internal) considerations are combined, reconciled or held in tension within board processes

Source(s): Created by author

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