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The financial systems are being reshaped by the convergence of emerging technologies such as AI, Internet of Things (IoTs), blockchain, and decentralised finance (DeFi). This nexus unlocks the potential for automated smart contracts and peer-to-peer transactions. It also enables secure, efficient, and transparent financial services that fundamentally alter traditional financial systems. For example, blockchain forms the basis of DeFi to facilitate the creation of tokenised assets and digital currencies, which empowers users to engage in financial transactions without relying on intermediaries of the traditional financial system – thus, enhancing transparency and reducing transaction costs. Despite these benefits, there are significant challenges associated with the dual use of these technologies along with DeFi, including issues concerning scalability, security, regulatory compliance, and interoperability with the traditional financial architecture. There are potential risks, such as facilitation of illicit activities such as fraud, money laundering, and cyber extortion through anonymous platforms provided by DeFi. Thus, the dual use of these technologies and DeFi assets presents a new dawn of financial innovation and empowerment, whilst there are evolving challenges to address. This chapter presents an overview of the dual use landscape of these technologies and explores measures that can effectively navigate dynamic complexities to best exploit transformative benefits of this emerging ecosystem.
Non-fungible tokens (NFTs) are unique digital assets stored on a blockchain that can be used to transfer value without relying on traditional payment intermediaries. In this paper, we present a case study of an action research project in which we apply NFTs to raise funds for a children’s hospital. A total of 11 children’s drawings were digitized, and 10 copies of each were offered on the online marketplace OpenSea. From a technical perspective, the solution works reliably as a vehicle for donations, but user adoption was low. Here, we discuss the lessons learned and list 12 advantages and 8 disadvantages/barriers to using NFTs for fundraising based on feedback from 24 digital natives, supplemented by input from non-expert individuals. From a technological perspective, blockchain technology offers promising affordances for nonprofit organizations. However, important problems must be solved to gain widespread adoption, most notably usability and legal clarification.
Offering a systematic exploration of blockchain networks from both technical and analytical viewpoints, this book introduces the core structures that underpin blockchain systems, transactions, addresses, and smart contracts and explains how these can be modeled, visualized, and analyzed using modern data science methods. Bridging computer science, finance, and statistics, it integrates algorithmic reasoning with economic intuition to study decentralization, risk, and trust in digital economies. Through examples drawn from Bitcoin, Ethereum, Ripple, Monero, Zcash, IOTA, and DeFi, readers learn how blockchain data can be transformed into graph and temporal models for fraud detection, systemic risk analysis, and network behavior prediction. Featuring clear explanations, illustrative figures, and Solidity code, this volume serves as an essential reference for students, researchers, and practitioners in finance, data science, statistics, machine learning, and distributed systems.
This chapter examines decentralised autonomous organisations (DAOs) as emergent forms of software or knowledge commons, applying the governing knowledge commons (GKC) framework. It argues that DAOs, characterised by their reliance on blockchain-enabled smart contracts and elimination of hierarchical management, represent a novel form of collective decision-making and governance. The analysis distinguishes between on-chain and off-chain governance models, evaluating their effectiveness in ensuring decentralisation and addressing internal conflicts, with particular emphasis on the unique conflict resolution mechanisms available to DAOs (such as "forking" and "rage-quitting"). An important insight is that the rules-in-use in on-chain governance and off-chain governance are likely to be very different. The chapter also considers the robustness decentralised systems in managing common-pool resources.
Blockchain is frequently proposed as a solution to tenure insecurity, administrative inefficiencies, and corruption, where conventional land reforms have fallen short. However, evidence of its institutional effectiveness remains limited. Drawing on Williamsonian transaction cost economics and an analytical autoethnographic research design, we undertake a comparative analysis of blockchain’s ability to curb opportunism and safeguard the interests of land-transacting parties relative to Ghana’s customary and statutory land-governance structures. Our findings show that while blockchain performs well at some ex ante safeguards, it offers no clear advantage over existing governance structures at the ex post stage. Of the seven identified forms of post-transaction opportunism that buyers often face, blockchain was superior only in minimising hold-up risks. We conclude with implications for policymakers and technologists considering blockchain adoption.
Blockchain technology has gained immense popularity in enhancing the security and privacy of Information Systems (IS), reflected in exponential increases in published research articles. The rapid proliferation of published research presents significant challenges for manual analysis and synthesis due to the vast volume of information. To this end, we adopted the Computational Literature Review (CLR) and Latent Dirichlet Allocation (LDA) topic modeling techniques to analyze the impact of the pertinent literature. This study is among the first studies in the IS field to apply the CLR technique in the Legal-Tech context, focusing on security, privacy, and governance in blockchain systems. Using CLR and LDA topic modeling, we identified 10 topics related to security and privacy, each accompanied by an in-depth description aligned with relevant policies and regulations. Our findings identify both the strengths and current gaps in the literature, providing valuable insights into ongoing scholarly discourse. Through our analysis, we outline future research directions that align with the evolving dynamics of blockchain technology, data management, and policy implications, aiming to guide further academic and practical advancements in the IS field.
The blockchain economics literature often models consensus participants as anonymous, interchangeable agents operating without institutional context. This paper argues that this ‘permissionless’ assumption describes open admission but abstracts from governance over rule change. Once governance is restored, mutable blockchain systems face a standard commitment problem: rule-changing coalitions may revise protocol rules after participants make chain-specific investments. The paper develops this claim through a comparative-institutional analysis of eight public blockchain systems and two illustrative cases: the BTC Core governance episode and the Ethereum DAO intervention. TCP/IP provides the institutional comparator: technical systems can evolve extensively while preserving base-layer semantic fixedness. Once governance is included, blockchain security is constrained not only by consensus costs but also by institutional commitment conditions: base-layer fixedness, coalition concentration, coordination thresholds, and identity-linked accountability.
We introduce the concept of arbitrable stochastic games, which appears to be new. To do so, we consider a reward criterion different from the standard gamma-weighted criterion. This allows us to define the fair price to play a non-competitive stochastic game. We then illustrate the concept through three variations of the classical coin-toss game with chips, providing proofs via Doob’s theorem for supermartingales and practical algorithms. These examples deepen our understanding of the Bitcoin protocol.
The expanding application of financial technologies, as well as growing participation of consumer investors, has multiplied the forms and functions of finance, deepening its entanglement with social, political, and cultural processes. This interview responds to increasing interest within the journal’s community in the evolving intersections of finance, technology, and society. The conversation foregrounds the role of fintech – understood both narrowly as communication infrastructures and broadly as socio-technical environments – in reconfiguring these relationships. Also, by situating finance as an interdisciplinary pivot, the interview further highlights emerging research frontiers, including blockchain, venture capital, and the crypto economy, while also reflecting on the methodological challenges and academic struggles that accompany their study. Taken together, the discussion points toward an evolving research agenda across various relevant fields.
The international law of the sea treaties imposes various obligations on contracting states, which can be managed more efficiently and cost-effectively through blockchain technology. As a disruptive tool, blockchain allows stakeholders to track transactions in a secure, cryptographically verified public database. It ensures a secure and reliable record of activities and information exchange governed by international agreements. This paper explores how the blockchain-based systems could help protect the maritime community and support sustainable ocean governance under the law of the sea. Particular attention is given to conserving marine living resources, protecting the marine environment and preserving marine biodiversity. Blockchain is already in use for some internationally regulated activities, such as electronic data interchange, though electronic permitting still waits broader international approval. Besides the clear advantages of blockchain, its legal, regulatory and other concerns must be addressed when considering its role in implementing international treaties. The author aims to explore whether harnessing blockchain`s potential requires new international agreement or if a simpler soft law instrument could provide sufficient guidance and safeguards for the international community.
International investment law faces a paradigm shift with the rise of the digital economy. Emerging technologies such as blockchain, artificial intelligence, and the platform economy redefine investment dynamics while challenging traditional regulatory frameworks. Digitalisation expands cross-border investment opportunities in areas like AI, genomics, and smart infrastructure, while also complicating traditional jurisdictional and territorial considerations. The shift from physical to digital assets necessitates a re-evaluation of the classic definitions of an ‘investor’ and ‘investment’. Meanwhile, states increasingly regulate strategic digital assets under national security concerns, introducing measures ranging from data localization mandates to investment screening mechanisms. These changes raise geopolitical and geoeconomic tensions and highlight disparities in digital governance models between major powers. Investor-state dispute settlement (ISDS) may have to adapt to address disputes over digital assets and data, as well as leverage AI and other digital technologies for efficiency while safeguarding due process. This chapter, along with the broader volume, examines these themes, emphasising balanced frameworks that promote innovation while safeguarding public interests in the evolving digital economy.
Cryptoassets, while viewed by many as a significant innovation in the banking and investment industry, present exigent risks to investors, markets and possibly the financial system itself. Can these risks be managed appropriately using securities regulation? This article argues that securities regulation is appropriate to regulate a popular kind of cryptoasset, utility tokens, given the similarities between utility token risks and those found in traditional securities markets. This analysis begins to point to a consistent global regulatory response to cryptoasset regulation and has implications for future cryptoassets and financial innovation more generally.
Distributed ledgers, including blockchain and other decentralized databases, are designed to store information online where all trusted network members can update the data with transparency. The dynamics of a ledger’s development can be mathematically represented by a directed acyclic graph (DAG). In this paper, we study a DAG model that considers batch arrivals and random delay of attachment. We analyze the asymptotic behavior of this model by letting the arrival rate go to infinity and the inter-arrival time go to zero. We establish that the number of leaves in the DAG, as well as various random variables characterizing the vertices in the DAG, can be approximated by its fluid limit, represented as the solution to a set of delayed partial differential equations. Furthermore, we establish the stable state of this fluid limit and validate our findings through simulations.
Chapter 3 dives deep into the beating heart of cryptocurrency, the paradoxical technology that has made early adherents billions, while adding nothing of real value to society. By any measure, crypto has failed at its stated goal: creating a better financial system. Looking to Bitcoin, we show how the core innovation – a distributed encrypted database – makes a terrible payment system, with slow, expensive, uncorrectable transactions. But crypto enthusiasts ignore more than a decade of failure, doubling down on grandiose claims about solving everything from financial inclusion to corporate governance while ignoring the far easier, low-tech solutions to these very real needs. We include an interview with an early supporter of the massive crypto currency Ethereum, who came to see how crypto became “just a tool for the wealthy to become wealthier” rather than fulfilling its promise of financial inclusion for the world’s 1.7 billion unbanked people.
Edited by
Filipe Calvão, Graduate Institute of International and Development Studies, Geneva,Matthieu Bolay, University of Applied Sciences and Arts Western Switzerland,Elizabeth Ferry, Brandeis University, Massachusetts
In this chapter, I consider how transparency and gold are established and maintained as “global values” and how actors differently positioned within gold markets seek to align them, with greater and lesser degrees of success. I trace how this happens in three clusters of transparency projects: certification schemes and voluntary frameworks for mining companies; efforts to use blockchain technologies to increase transparency in the supply chain; and efforts to verify (and perform the verification of) gold’s presence in European central banks, especially the Deutsche Bundesbank. Exploring these specific sites where transparency and gold convene, both supporting and tugging against each other, allows us to consider transparency from a different angle than is found in many other discussions, viewing gold and transparency as engaged in competitive processes of value-making (and unmaking).
This Element provides an overview of FinTech branches and analyzes the associated institutional forces and economic incentives, offering new insights for optimal regulation. First, it establishes a fundamental tension between addressing existing financial inefficiencies and introducing new economic distortions. Second, it demonstrates that today's innovators have evolved from pursuing incremental change through conventional Fin-Tech applications to AI × crypto as the fastest-growing segment. The convergence of previously siloed areas is creating an open-source infrastructure that reduces entry costs and enables more radical innovation, further amplifying change. Yet this transformation introduces legal uncertainty and risks related to liability, cybercrime, taxation, and adjudication. Through case studies across domains, the Element shows that familiar economic tradeoffs persist, suggesting opportunities for boundary-spanning regulation. It offers regulatory solutions, including RegTech frameworks, compliance-incentivizing mechanisms, collaborative governance models, proactive enforcement of mischaracterizations, and alternative legal analogies for AI × crypto.
Medieval lex mercatoria refers to the customary commercial law developed by merchants to govern cross-border trade, operating alongside and sometimes independently of territorial legal systems. This paper compares that historical form of autonomous ordering with contemporary blockchain governance. Both create institutional frameworks that facilitate exchange among diverse actors and provide mechanisms that function, to varying degrees, outside traditional state authority. The key difference lies in how rules are generated and enforced: medieval merchant law relied on flexible norms interpreted by merchant courts and other human adjudicators, whereas blockchain systems seek to reduce ambiguity by encoding rules ex ante in smart contracts and automating enforcement. Decentralized decision-making and emerging forms of on-chain adjudication further reimagine dispute resolution without centralized judicial power. The central claim is that both represent polycentric legal orders whose significance ultimately depends on how they interact with, complement, or challenge formal governmental institutions.
This Practitioner's Note considers the disruptive function of Little Phil, a mobile app that seeks to democratize philanthropic giving. Although many of the cultural aspects of philanthropy – such as increased control over donation, tracking the impact of one's giving, and building interpersonal relationships with receivers – can be opened to any person with an app-hosting device and internet access, it cannot supplant the role of big philanthropy and solve Rob Reich's problem: how to domesticate private wealth so that it serves democratic purposes… Little Phil's disruption has in concept gotten us halfway to legitimizing philanthropy. Perhaps the uptake of citizens’ panels by large philanthropic foundations will cover the remaining distance.
In this article, I place the blockchain within competing interpretations of the present as either an emerging technofeudal mode of production, or as a relatively unchanged capitalism. Drawing on a wide literature on zones – spaces in nation-states where the usual rules do not apply – I highlight three reconfigurations of territory, authority, and rights (TAR) associated with the blockchain today. These are: (1) the transnational expansion of crypto-related practices; (2) the national regulation and legitimation of cryptoassets; and (3) the reemergence of a liberal discourse linking human rights to the global exchange of private property. Through these examples, I demonstrate how the blockchain is part of a broader reshaping of accumulation and legal legitimation, mirroring the emergence of capitalism and the nation-state, but on a global scale. I conclude by arguing against the position that the reemergence of fascism is a red herring distracting us from the coming technofeudalism; instead, I claim that technofeudalism obscures the links between today’s techno-authoritarian shift and the enforcement of global corporate private property relations.
Blockchain technology has attracted attention from public sector agencies, mainly for its perceived potential to improve transparency, data integrity, and administrative processes. However, its concrete value and applicability within government settings remain contested, and real-world adoption has been limited and uneven. This raises questions regarding the conditions that promote or impede adoption at the institutional level. Fuzzy-set qualitative comparative analysis is employed in this research to explore how the combined effects of national-level regulatory clarity, financial provision, digital readiness, and ecosystem engagement shape patterns of blockchain adoption in the European public sector. Rather than identifying any single factor as decisive, our findings reveal a plurality of institutional paths leading to high adoption intensity, with regulatory certainty and European Union funding appearing most frequently on high-consistency paths. In contrast, digital readiness indicators and national research and development budgets are substitutable, challenging resource-based perceptions of technology adoption and supporting a configurational understanding that accounts for institutional interdependence and contextuality. We argue that policy strategies cannot look for overall readiness but should place key institutional strengths relative to local conditions and public value objectives.