“…While most studies in our sample emphasized either social and environmental costs and benefits, such as displacement and resettlement of local communities, change of landscape [70,80,85,88], environmental damage, biodiversity loss and pollution [50,56,[88][89][90][91][92], these are widely associated with the construction stage [5,10] and are not necessarily or exclusively transboundary in nature A number of studies did explicitly address specific benefits of transboundary projects, as the potential of some transboundary projects to become devices to address long existing territorial disputes under certain circumstances [55,56,72] , serve as catalysers for market integration and harness synergies and resource complementarities [58,69,71,72,93] Fewer studies, less than one-third (28%) as seen in Table 1 above, address energy policy goals such as-related benefits or costs [6,57,64,68,85,94,95]. We argue that, without downplaying the importance of environmental and social impacts, more research is needed to explore energy specific costs and benefits related to the generation and use of shared hydroelectricity, and specifically on dimensions of affordability, energy access and energy security.…”