Blockchain for Public Services: A Systematic Literature Review

Blockchain is heralded as being “the next big thing” that promises to radically transform society and the economy in near-future applications. While scholarly literature on blockchain has largely focused on bitcoin and cryptofinance, in recent years, a body of scholarship has started to emerge on blockchain in the public sector. The characteristics of blockchain have made it a promising technology to transform many activities related to public policy and public service provision, such as administrative processes, welfare provision and regulation practices. This article provides, to the best of our knowledge, the first systematic literature review of the use of blockchain across all the main public services. This systematic review identifies the public services most likely to be impacted by the introduction of blockchain. It also highlights the main potential benefits, costs and risks of blockchain for government, civil servants and citizens. Governments are found to benefit mainly from improvements in efficiency and traceability, while regulatory uncertainty and questions around scalability represent major costs and risks for them. Civil servants, the least studied actor in the literature, could benefit from blockchain through the reduction of red tape and improvements in coordination between agencies. Their lack of blockchain knowledge and skills represent a major cost as regards adoption. Regarding citizens, security and transparency are identified as being the most important benefits, while risks are mainly associated with data security concerns. The article concludes by noting several limitations in the literature and providing suggestions towards fruitful lines of research.