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1,898 results · page 23 of 80
Longfei He, Xiao Zhang, Baofeng Huo, Yang Zhang
No abstract is available for this record.
Jérôme Verny, Yacine Aiat, Stephane Fourneaux, Éric Lambourdière
The theoretical foundations and indeed implications related to the emergence of digital assets, particularly cryptocurrencies, remain a scarcely explored area in recent academic literature. This chapter aims to analyze the presumed influences of various economic schools of thought on the genesis of Bitcoin, the monetary policies underlying several digital assets, and the evolution of their market capitalization since 2009. The study also addresses the case of several cryptocurrency exchange platforms, commonly known as crypto exchanges, and focuses on industrial entities, such as Ledger and Bitmain. An overview of use cases involving “smart contracts” and Blockchain technology is provided. This chapter seeks to revisit the emergence of different approaches to national regulation on a global scale and to establish international comparisons. The examples of Japan, long trapped in a deflationary spiral, and Argentina, facing hyperinflation, are particularly enlightening for understanding the legal treatment of digital assets and their perception by local authorities. Two central questions guide this exploration: what are the economic and ideological foundations underlying the conception of Bitcoin, and to what extent does the current development of the digital asset ecosystem remain true to the initial ideas of Satoshi Nakamoto?
Jitender Kumar, Vinki Rani
Purpose This study aims to examine the cryptocurrency adoption (CA) level among Indian retail investors who use cryptocurrency as an investment and mode of transaction. Design/methodology/approach Through self-administered survey questionnaires, data is collected from 397 retail investors of Haryana (India). This study adopted a quantitative method using partial least squares structural equation modeling (PLS-SEM). Findings This paper offered a robust model with a high explanatory value for CA in which four of the five proposed factors of diffusion of innovation theory (trialability, compatibility, complexity and observability) and one of the two proposed factors of consumer behavioral theory (perceived value) significantly influences CA. More specifically, the absence of regulatory support is a barrier to the broad adoption of cryptocurrencies, as its regulations are necessary to mitigate or minimize uncertain outcomes. Research limitations/implications This research primarily focuses on CA in India. Thus, it can be extended to cover diverse other countries for more precise results. Practical implications The results provide insights to the government to design the policies, better regulate and make investment strategies that can ultimately enhance CA. In addition, the study’s results also inform financial educators, policymakers, employers and academicians about the significance of several variables affecting CA in India. Social implications From a social standpoint, this study is an advance that directs central banks and governments to develop, regulate and manage digital currencies and implement a digital currency ecosystem. Moreover, the results assist in understanding investors’ perceptions and decision-making perspectives toward cryptocurrencies through the country’s digitalization. Originality/value This paper fills the study gap to assist policymakers and cryptocurrency experts in broadening their knowledge base and recognizing prioritized intentions. Additionally, this study provides a theoretical model with the latent variable for a present and pertinent matter.
S. Vinoth, Nidhi Srivastava
In today's rapidly evolving business landscape, the emergence of disruptive technologies and innovative business models have revolutionized traditional market structures. One such transformation is the shift towards decentralized marketplaces, driven by blockchain technology, smart contracts, and decentralized finance (DeFi) solutions. This chapter aims to explore the concept of disruptive business models and their profound impact on market dynamics, focusing on the rise of decentralized marketplace. This chapter addresses a pressing need for comprehensive, up-to-date, and insightful information on a topic that is rapidly changing the business landscape. It provides a valuable resource for a diverse audience, ranging from industry professionals to academics and policymakers. It can be highly beneficial for several reasons, given the ongoing evolution and significance of decentralized marketplaces.
Linh Thi My Nguyen, Phong Thanh Nguyen
Over the past three decades, scholars have studied technology adoption and its determinants in many contexts. Nevertheless, this literature has remained silent in understanding the complex interdependency among these determinants and how such interdependency determines technology adoption. In this paper, we build on previous research to focus on the technological, social, economic, cultural, and political determinants of technology adoption. Using the Fuzzy-set Qualitative Comparative Analysis (FsQCA) with samples of 101 and 43 countries, we perform a configurational analysis to explore the interdependency among these five categories of factors and their causal effect on the adoption of cryptocurrency and decentralized finance (DeFi). We obtain various causal combinations of the technological, social, economic, cultural, and political factors that are associated with a high level of cryptocurrency and DeFi adoption. In addition, our analysis highlights the key role of the social, economic, and cultural factors in influencing both crypto and DeFi adoption. Technological and political factors, nevertheless, play a less important role in driving blockchain adoption. We also find intriguing differences between cryptocurrency and DeFi adoption. Our results both support and challenge existing findings in the technology adoption literature and offer theoretical implications for future research.
Gajendra Liyanaarachchi, Giampaolo Viglia, Fidan Kurtaliqi
No abstract is available for this record.
Elvira-Maria Arvanitou, Dimitrios Gagoutis, Apostolos Ampatzoglou, Nikolaos Mittas · 6 authors
No abstract is available for this record.
Binh Nguyen Thanh, Ha Xuan Son, Diem Thi Hong Vo
This paper examines how the combination of artificial intelligence (AI) and blockchain technology can enable autonomous AI agents to engage and execute economic and financial transactions. We critically examine the constraints on AI agents in achieving predefined objectives independently, especially due to their limited access to economic and financial institutions. We argue that AI’s access to these institutions is vital in enhancing its capabilities to augment human productivity. Drawing on the theory of institutional economics, we propose that blockchain provides a solution for creating digital economic and financial institutions, permitting AI to engage with these institutions through the management of private keys. This extends AI’s capabilities to form and execute contracts, participate in marketplaces, and utilize financial services autonomously. The paper encourages further research on AI as a general-purpose technology and blockchain as an institutional technology that can unlock the full capabilities of autonomous AI agents.
Mahdi Fahmideh, Babak Abedin, Jun Shen
No abstract is available for this record.
Jingxuan Cai, Xin Luo, Fujun Lai, Peilin Ai · 5 authors
No abstract is available for this record.
Pawel Pinio, Roman Batko, Dagmara Lewicka
The emergence of decentralized autonomous organizations (DAOs) represents a paradigm shift in the organizational structure enabled by distributed digital ledger technologies such as blockchain. Exclusively digital web-based entities, DAOs function independently through blockchain-based smart contracts that rely on distributed governance, community coordination, and incentive mechanisms rather than top-down hierarchies. As DAOs continue to foster an environment conducive to a new class of digital participants, they are becoming increasingly prominent in the digital cryptocurrency economy, raising questions regarding their structure, sustainability, and adoption. Being collectively owned and managed by their members, DAOs exhibit characteristics of both non-zero and zero-sum dynamics, thereby posing a challenge to conventional centralized and hierarchical management models. This mixed-methods study examines DAOs within modern information ecosystems through a literature review, blockchain analysis, and comparative organizational analysis. The literature review synthesizes academic discourse on DAOs, highlighting key theories, such as decentralization, digital governance, and distributed decision-making. Blockchain analysis of 10 leading DAOs provides engagement and activity metrics. Comparative analysis considers the DAOs’ advantages and challenges in relation to traditional centralized organizations, focusing on aspects such as governance, efficiency, and adaptability. The findings reveal DAOs' innovative potential and adoption barriers, such as reliance on token incentives and difficulties with coordinated decision-making due to reasons like concentration of voting power and others. Although DAOs possess advantages in terms of decentralization, community alignment, and transparent algorithmic execution, traditional organizations currently maintain superiority in terms of stability and legal standing. This study provides an interdisciplinary academic perspective on the concept and implementation of the DAO by combining conceptual understanding, empirical blockchain evidence, and comparative analysis. It is concluded that realizing the transformative potential of DAOs requires synthesizing multidisciplinary insights and overcoming substantive adoption hurdles. The proposed framework serves as a foundation for further research on the evolution and integration of DAOs into organizations of the future.
Muhammad Shoaib Farooq, Hamza Jamil, Hafiz Sohail Riaz
]A multichain non-fungible tokens (NFTs) marketplace is a decentralized platform where users can buy, sell, and trade NFTs across multiple blockchain networks by using cross communication bridge. In past most of NFT marketplace was based on singlechain in which NFTs have been bought, sold, and traded on a same blockchain network without the need for any external platform. The singlechain based marketplace have faced number of issues such as performance, scalability, flexibility and limited transaction throughput consequently long confirmation times and high transaction fees during high network usage. Firstly, this paper provides the comprehensive overview about NFT Multichain architecture and explore the challenges and opportunities of designing and implementation phase of multichain NFT marketplace to overcome the issue of single chain-based architecture. NFT multichain marketplace architecture includes different blockchain networks that communicate with each other. Secondly, this paper discusses the concept of mainchain interacting with sidechains which refers to multi blockchain architecture where multiple blockchain networks are connected to each other in a hierarchical structure and identifies key challenges related to interoperability, security, scalability, and user adoption. Finally, we proposed a novel architecture for a multichain NFT marketplace, which leverages the benefits of multiple blockchain networks and marketplaces to overcome these key challenges. Moreover, proposed architecture is evaluated through a case study, demonstrating its ability to support efficient and secure transactions across multiple blockchain networks and highlighting the future trends NFTs and marketplaces and comprehensive discussion about the technology.
Allegra Canepa
Il lavoro ricostruisce i profili tecnici della blockchain, degli Smart Contracts e degli NFTs quali mattoncini di base per lo sviluppo di nuove forme di commercio e le crittomonete, visto che rappresentano lo strumento di supporto di questi nuovi modelli di business.La natura decentralizzata delle Blockchain permetter di produrre e negoziare nuovi contenuti digitali attraverso transazioni trasparenti e tracciabili senza la necessit di coinvolgere intermediari.Per questo si sottolinea come gli utenti che sapranno cogliere le nuove opportunit legate alla finanza decentralizzata (DeFi), al metaverso e alle nuove tecnologie avranno un vantaggio competitivo nell'evoluzione del World Wide.The work reconstructs the technical profiles of Blockchain, Smart Contracts and NFTs as essential building blocks for developing new forms of commerce and cryptocurrencies, representing the fundamental tool to support these new business models.The decentralized nature of Blockchains will allow new digital content to be produced and traded through transparent and traceable transactions without the need to involve intermediaries.For this reason, it is underlined that users who can seize the new opportunities linked to decentralized finance (DeFi), the Metaverse and new technologies will have an essential competitive advantage in the evolution of the World Wide Web.Sommario: 1. Introduzione alla blockchain -1.1 Struttura della blockchain -1.2 Protocolli di consenso -1.3.Sicurezza della blockchain -2.Web 3.0, Wallets e Smart Contracts -3.Assets digitali e NFTs -4.
Oluwafemi Akanfe, Diane Lawong, H. Raghav Rao
No abstract is available for this record.
William P. Rey, Carl Jose M Guingab, Mark Joseph C. Sheng, John Ray D. Tamayo
This study presents the development and evaluation of a Web-Based Loan Management System incorporating smart contracts for a lending company. Focused on enhancing security, transparency, and efficiency in the lending process, the research integrates blockchain technology, Hyperledger Fabric, and API functionalities. Performance testing using GTMetrix ensures reliability. User acceptance testing, employing the User Experience Questionnaire (UEQ) and System Usability Scale (SUS), reveals positive pragmatic and hedonic qualities, with a final SUS score of 90, indicating excellent usability. The results suggest that the system, equipped with innovative technologies, holds promise for lending companies seeking secure and efficient financial solutions.
Miguel Cárdenas, Carlos Madeira, Raúl Morales-Reséndiz, Miguel Musa · 6 authors
Distributed ledger technologies (DLT) are increasingly considered to enhance payment systems’ and market infrastructures’ functionalities like their accessibility and interoperability. We explore DLT architecture options to enable a new tiered access in the RTGS system of Chile for new payment service providers (PSP). We find that by introducing decentralized apps (DApps) the RTGS system would become more accessible and interoperable by enabling a tiered access to new participants. Our work also suggests that central banks exploring design alternatives for retail Central Bank Digital Currencies (CBDC) could find relevant our approach as a pivot to build a far-reaching PSP network.
Kumar Saurabh, Parijat Upadhyay, Neelam Rani
No abstract is available for this record.
Andrea De Salve, Alessandro Brighente, Mauro Conti
Modeling and predicting the behavior of nodes and users in blockchains provide opportunities for business strategy optimization. Indeed, the number of interactions of a node is strictly related to its balance and its prediction may be used for analytics purposes and investment strategies. However, the amount and diversity of information stored on the blockchain demand advanced tools for the modeling and analysis of blockchain data. Such tools should be able to capture the dynamicity and interaction of multiple independent actors, considering a large number of variables and dynamic interaction graph topologies. This is exacerbated by the use of smart contracts, programs stored in blockchain blocks that bring automation to blockchain’s operations and thus increasing the variability of the resulting interaction graphs. Existing modeling methodologies are unable to keep track of all these details, as they are not able to capture the temporal variability of the network. In this paper, we propose a novel framework for modeling and predicting the behavior of smart contracts on a blockchain. We propose the concept of temporal smart contracts networks, i.e., graphs representing the temporal evolution of interactions and data flow. Our framework allows the creation of temporal smart contract networks with different granularity levels by considering different interaction patterns between smart contracts, externally owned accounts, and internal transactions. Thanks to these graphs, we are able to model features such as the node in degree and amount of ether received by a smart contract, which are directly related to its behavior. We incorporate our modeling approach in Ethereum Data Inspection Tool (EDIT), a novel tool able to model interactions and predict them based on historical data. We test different machine learning models to predict features extracted by EDIT, hence allowing for the prediction of the overall behavior of the smart contract. We test EDIT on the Ethereum blockchain and model several temporal smart contracts networks, which represent the interactions and the data flow resulting from about 4 000 000 consecutive blocks. The evaluation of different real case studies shows that the proposed framework is able to predict, with a mean absolute error close to 1%, the evolution of several interesting properties (e.g., amount of received ether) related to both accounts and smart contracts.
Bokolo Anthony
Collaborative Enterprise (CE) comprises of organizations that adopt digital platforms to achieve shared goals.In CE the prospect of Distributed Ledger Technologies (DLT) such as blockchain is reliant on its capability to integrate with other systems to improve organizational operations.But the inability for different blockchains to communicate with one another is an inherent issue as it puts a strain on the mainstream deployment of blockchains in CE.Therefore, this study presents a standardized architecture to support DLT interoperability and intraoperability within CE.A structural review was conducted after which design science research methodology was adopted to validate the architecture.
Shallu Batra, Vaibhav Aggarwal, Mahender Yadav, Pankaj Kumar
Decentralized finance (DeFi) and smart contracts are trending topics in academic studies. With the use of blockchain, the contracts are entirely digital and run on small computer programs. However, despite being relatively safe and advantageous, risks are also present there that cannot be eliminated. Given that the phenomena are expanding quickly and the value of decentralized finance collateral fluctuates quickly, it would be fascinating to know whether these changes negatively affect such contracts. The primary aim of the paper is to synthesize the research on smart contracts through the bibliometric methodology. The findings indicate yearly publication patterns, top leading authors, countries, and journals, as well as the top most occurrence keywords of smart contracts subject. Future areas for potential scholars are also discussed in this review study.
Isau Ahmed Olatunji
Over the years, there has been a tremendous increase in the use of cryptocurrency as a virtual means and form of payment worldwide. However, in recent years, there has been a steady increase in the use of cryptocurrency for illicit and criminal activities such as money laundering, financing terrorism and other illegal activities. In addition, the virtual nature of cryptocurrency creates opportunities for tax evasion thereby constituting a serious tax challenge for countries. This makes it necessary for countries to put in place measures to regulate cryptocurrency to prevent its use for illicit and criminal activities. Various countries have established certain measures and legislations to regulate the use of cryptocurrency. The objective of this article is to examine nature of cryptocurrency as well as its regulation in some selected jurisdictions. The paper will also examine how cryptocurrency is currently regulated in Nigeria.
Crina Anina Bejan, Mihaela Muntean, Dominic Bucerzan, Camelia Daciana Stoian
No abstract is available for this record.
Eric Chiquito, Ulf Bodin, Olov Schelén, Ahmed Afif Monrat
Open-cry electronic auctions have revolutionized the landscape of high-value transactions for buying and selling goods. Online platforms such as eBay and Tradera have popularized these auctions due to their global accessibility and convenience. However, these centralized auctioning platforms rely on trust in a central entity to manage and control the processing of bids, e.g., the submission time and validity. The use of blockchain technologies for constructing decentralized systems has gained popularity for their versatility and useful properties toward decentralization. However, blockchain-based open-cry auctions, are sensitive to the order of transactions and deadlines which, in the absence of a governing party, need to be provided in the system design. In this paper, we identify the key properties for the development of decentralized open-cry auctioning systems, including verifiability, transaction immutability, ordering, and time synchronization. Three prominent blockchain platforms, namely, Ethereum, Hyperledger Fabric, and R3 Corda were analyzed in terms of their capabilities to ensure these properties for gap identification. We propose a solution design that addresses these key properties and presents a proof-of-concept (PoC) implementation of such design. Our PoC uses Hyperledger Fabric and mitigates the identified gaps related to the time synchronization of this system by utilizing an external component. During the chaincode execution, the creation and submission of bids initiate requests to the time service API. This API service retrieves trusted timestamps from NTP services to obtain accurate bid times. We then analyzed the system design and implementation in the context of the identified key properties. Lastly, we conducted a performance evaluation of the time service and the PoC system implementation in time-sensitive scenarios and assessed its overall performance.
Peter Stella
The original motivation for the concept paper introducing the Bitcoin blockchain and distributed ledger technology was to enable peer-to-peer transfers of currency and thereby eliminate the role of fiat money, banks and central banks in payments systems worldwide. Although subsequent generations of blockchains have been designed to enable additional applications such as the transfer of artifacts other than their native currencies (eg, tokenized bonds, nonfungible token digital artwork and items or objects purchased in online video games), the most prominent networks continue to stress their decentralized payments or “currency†applications. In this paper we examine the feasibility of the widespread adoption of cryptocurrencies in payments by comparing the output and cost statistics of several centralized payments systems with those of Bitcoin, Ethereum and Solana.