5. Discussion
The IV concept could potentially be one part of the puzzle in creating a BoP business model with a more sustainable basis. IV provides a social perspective to RL, meaning the inclusion of the BoP segment in supply chain processes. Furthermore, IV helps in integrating ecological issues into the BoP business approach, which so far has been neglected in the BoP literature (Kolk et al., 2014), though it has been discussed in related papers on waste management (Ahmed & Ali, 2006; Scheinberg, 2011). However, a closer look at the market mechanisms reveals a number of trade-offs which hamper true sustainability and questions the entire approach of achieving a reduced environmental burden in the water sachet supply chain through IV. In the following discussion, we will highlight potential contributions of IV for sustainable BoP approaches and then critically discuss trade-offs and hindrances for holistic sustainability at the BoP.