“…This approach appeared to be adequate for the following four reasons: (1) To our knowledge, research on both, due diligence outside of financial contexts and conflict minerals is in its early stages (cp. Sarfaty, 2015) with only few published articles (e.g., Fasterling and Demuijnck, 2013;Muchlinski, 2012;Rotter et al, 2014;Sarfaty, 2015); (2) SCDD on conflict minerals requires investigating multiple actors along various tiers of the supply chain. Therefore, the issue at hand constitutes a complex research problem rendering it to naturalistic inquiry in which insights are induced by interpretative means (Lincoln and Guba, 1985); (3) Case study research is well-suited to study complex phenomena from different angles and to compare various organizational situations (Eisenhardt, 1989;Yin, 1981;; (4) The triangulation of data from multiple sources allows for mitigation of the social desirability bias which is inherent in the topic at stake (Crane, 1999).…”