Tracing the value chain of ubiquitous materials can be difficult but vital, such as with conflict materials or e-waste. Understanding the upstream and downstream supply chain may help companies minimize support of unsustainable or unfair practices - and encourage optimal recycling and reuse.



Highlighted names indicate collaborators of Metals & Minerals for the Environment.


  • Amengual, Matthew. Buying Stability: The Distributive Outcomes of Private Politics in the Bolivian Mining Industry. Forthcoming: Wold Development. link.
  • Fitzpatrick, Colin, Olivetti, Elsa, Miller, T. Reed, Roth, Richard, & Kirchain, Randolph. (2015). Conflict minerals in the compute sector: Estimating extent of tin, tantalum, tungsten, and gold use in ICT products. Environmental Science and Technology, 49(2), 974–981. link.
  • Bateman, Alexis. (2015). Tracking the Value of Traceability. Supply Chain Management Review. link
  • Bateman, Alexis. (2015). Guest Voices: Labels Aside, Companies Need Transparent Supply Chains. Wall Street Journal. link
  • Duan, Huabo, Miller, T. Reed, Gregory, Jeremy and Kirchain, Randolph (2014) "Quantifying Export Flows of Used Electronics: Advanced Methods to Resolve Used Goods within Trade Data", Environmental Science & Technology. Vol. 48, No. 6, pp 3263–3271. link.
  • Alonso, Elisa, Sherman, A., Wallington, T., Everson, M., Field, Frank, Roth, Richard, and Kirchain, Randolph. (2012). "Evaluating Rare Earth Element Availability: A Case with Revolutionary Demand from Clean Technologies", Environmental Science & Technology, Vol. 46, No. 6, pp. 3406-3414. link.
  • Locke, Richard, Amengual, Matthew, & Mangla, A. (2009). Virtue out of Necessity? Compliance, Commitment, and the Improvement of Labor Conditions in Global Supply Chains. Politics & Society (Vol. 37). link.


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