Follow blockchain research across journals, conferences, and preprint repositories.
530 results · page 15 of 23
Eyup Dogan, Muhammad Tariq Majeed, Tania Luni
No abstract is available for this record.
Youshui Lu, Yue Li, Xiaojun Tang, Bowen Cai · 8 authors
No abstract is available for this record.
Aakash Lamba
Cryptocurrencies have seen a meteoric rise in their adoption and value over the past decade. For instance, the most widely-traded cryptocurrency, Bitcoin, which started at only a few cents per token in 2009 when it was first mined [1], crossed an all-time high price of more than USD68,000 in November 2021 Largely made possible with the rise of blockchain technology, a cryptocurrency is essentially a digital form of money that allows the transfer of value directly between users, without requiring an intervening financial institution A blockchain is a system where records of transactions are distributed across multiple users in a network as encrypted 'blocks ' [1,3,4]. The users in a blockchain network participate in both the creation of new tokens (equivalent to 'minting' new money), as well as the authentication of these records through complex mathematical operations on their computers, which is referred to as 'mining ' [1]. This decentralized 'distributed ledger' prevents the false modification of records [3] and allows for a more secure, trustworthy and scalable way to make financial transactions These advantages have led to significant growth in this sector.
Fathi Jouini, Ahlem Selma Messai, Abdelkader Derbali
The purpose of this paper is to study the relationship between bitcoin and energy commodities through the period of study from August 11, 2015 to March 31, 2018. For the econometric methodology, we utilize ARDL model, the cointegration relationship and the Granger Causality. From the empirical findings, we can observe that the presence of a short-term relationship between the variables with respect to the long-term relationship is significant and low. This result indicates the excessive volatility of bitcoin. The Granger causality test demonstrates the presence of unidirectional relationship between bitcoin and the variables representing energy and commodity products. Our paper contributes to the literature by applying for the first time many approaches together such as ARDL model, Granger Causality, Causality of Tada and Yamamoto, Cointegration relationship in short term and long term.
Rabin K. Jana, Indranil Ghosh, Martin W. Wallin
No abstract is available for this record.
Sofiane Aboura
No abstract is available for this record.
Serhat Yüksel, Hasan Dınçer, Çağatay Çağlayan, Gülsüm Sena Uluer · 5 authors
Abstract It is predicted that the bitcoin system will enter many areas of our lives in the future. Although it has many benefits, the most criticized issue of this system is excessive energy consumption. Since an excessive amount of energy is used in this process, it is vital that the preferred energy is environmentally friendly. For example, mining bitcoin with fossil fuels is likely to release a significant amount of carbon gas into the atmosphere. This will cause serious environmental problems. Therefore, great attention should be paid to the type of energy that will be used in bitcoin mining. In this study, it was stated that it would be beneficial to prefer nuclear energy in bitcoin mining. As a result of the use of nuclear energy, no carbon gas is released into the atmosphere. This will help reduce environmental pollution to a significant extent. Another dimension of nuclear energy being preferred in bitcoin mining is that the energy produced is continuous. The main reason for this is that nuclear energy is not affected by climatic conditions and temperature differences. Thanks to the preference of nuclear energy in bitcoin mining, it will be possible to contribute to the uninterrupted progress of this process.
Jon Truby, Rafael Dean Brown, Andrew Dahdal, Imad Antoine Ibrahim
The art industry has commercialised and popularised non-fungible tokens (NFTs), with the volume and value of NFT transactions rapidly growing to US$ 10.7 billion in Q3 2021. The increase in NFT transactions has drawn the attention of the art market to the consequent carbon emissions resulting from verifying transactions in proof-of-work blockchains supporting NFT transactions. With CO2-related deaths attributable to NFT transactions, social pressure from the art market has helped to progress the switch away from the deliberately polluting proof-of-work blockchains to more sustainable consensus protocols. Nonetheless, many popular types of blockchain have resisted the pressure to decrease their environmental impact, including Bitcoin, whose attributed 2021 annual emissions will produce emissions responsible for around 19,000 future deaths. In response, recent global policy interventions have employed legal and fiscal tools to reduce the carbon impact of some or all types of blockchains. Linking the damage caused by proof-of-work blockchains to climate change and human mortality, this study examines the recent policy interventions designed to motivate a shift in blockchain consensus protocols and promote miners' energy efficiency to mitigate environmental damage. This article further explores available policy intervention options that are currently not utilised.
Zhenjing Gu, Haider Ali Malik, Supat Chupradit, Gadah Albasher · 6 authors
Logistics plays a major part in any country's or region's economic success. Logistics performance depends upon the trade between other countries and urbanization. Urbanization has major role in logistics performance. However, being a significant energy user, logistics has negative consequences. As the logistics performance increases, carbon emissions increase as well because of more transportation and urbanization. Logistics performance has positive effects related to trade openness which reduces carbon emissions. As a result, it is necessary to understand function of logistics from both economic and environmental standpoint. Logistics performance is affected by urbanization of any region. The dataset for this research is made up of 10 Asian nations with 550 observations from 2010 to 2018 and is based on the theoretical underpinnings of impact of population affluence and technology (IPAT) and stochastic impacts by regression on population affluence and technology (STIRPAT). After applying various tests like cointegration analysis, unit root test, cross-sectional dependence now long & short-term relation of variables is studied by Cross-sectionally augmented autoregressive distributed lag (CS-ARDL). As indicated by the discoveries, the logistic performance index (LPI) is basically effective on economic growth and carbon emissions, particularly when related to IPAT and STIRPAT. The findings are reviewed, and policy implications are offered, which say that current logistical infrastructure should be transformed to more environmentally friendly operations. Finally, the limits are acknowledged, as well as future research possibilities that should be pursued.
Bin Zhu, Zheng Chen, Ning Wang
With the advancement of electricity marketization, distributed power trading and time-of-use price mechanism have become important directions. A distributed power time-of-use trading model based on blockchain technology is designed in this paper, and the trading process is introduced in detail. The transaction is established in an annual cycle and settled monthly. The trading model adopts the average price of the seller’s and buyer’s quotation price by matchmaking. A reasonable default compensation mechanism has been designed, which is conducive to promoting buyers and sellers to publish accurate and reasonable purchase and sale information as far as possible. A distributed power time-of-use trading system based on blockchain technology is developed on the Ethereum platform. Combined with a distributed power time-of-use trading example, the feasibility of the trading system for distributed power time-of-use trading is verified. The distributed power time-of-use trading system can achieve fair and equal trading between distributed generations and power customers, and improve the trading efficiency of distributed power, which enhances the enthusiasm of all parties to participate in transactions and the local consumption of distributed renewable energy.
Ganesan Subramanian, Anand Sreekantan Thampy
Blockchain technology is proven as one of the promising digital transformation technologies that can engender immutable records, provide end to culminate transparency, and distributed ledger. The electrical vehicle (EV) era commenced in the past few years. Many automobile manufacturers are moving towards zero-carbon vehicles. In order to achieve the sustainability goals and truncate the carbon footprint, fight against climate change, EV is considered as one of the solutions. This research fixates on the integration of blockchain with EV that can monitor the lifecycle, introduce special schemes for EV buyers like toll-free, free charging, parking free that can incentivize the people to buy the EV. Since it is integrated with blockchain, tracking becomes much more facile, and the reward points could be given through cryptocurrency. Ethereum truffle framework was used to test the EV blockchain consortium.
Rabeh Khalfaoui, Sami Ben Jabeur, Buhari Doğan
No abstract is available for this record.
Omaji Samuel, Nadeem Javaid, Ahmad Almogren, Muhammad Umar Javed · 6 authors
No abstract is available for this record.
Weiqi Hua, Jing Jiang, Hongjian Sun, Fei Teng · 5 authors
No abstract is available for this record.
Tsan‐Ming Choi, Xiutian Shi
During the recent COVID-19 (CoV) global outbreak, there is a sharp decline of revenue of on-demand ride-hailing (ODR) platforms because people have serious worries of infection in the shared vehicles. Blockchain, which supports cryptocurrency and creates full traceability of the service history of each car and driver, may come to rescue by allowing the platform to offer only the “safe cars” to consumers. Motivated by the real world challenges associated with the CoV outbreak for the ODR platform, we build game-theoretical models based on the M/M/n queuing system to explore if and how blockchain can help. In the basic model, the ODR platform decides the service price and special hygiene level. Comparing between the cases with and without blockchain, we find that blockchain implementation increases both the service price and hygiene level. In addition, when the consumers’ inherent worry of infection is substantially large, implementing blockchain achieves all-win for the ODR platform, drivers and consumers. In the extended models, we first consider the case when the special hygiene level is determined by the drivers under a mixed-leadership game and then explore the case when customers are risk averse. The main findings about blockchain adoption remain valid in both cases. However, when the drivers take charge of the special hygiene level, both optimal decisions are lower in most cases. It is also important to make efforts to reduce consumers’ feeling volatility toward service valuation for improving the value of blockchain adoption and related performances.
Qing F. Zhou, Qi Zhang
Global warming caused by greenhouse gases is one of the problems that need to be solved urgently. Blockchain technology can achieve automatic quota certification and settlement, providing a new direction for carbon emissions trading. This paper provides a quantitative analysis of blockchain-based carbon emissions trading through the Repast simulation platform. Firstly, it designs the blockchain-based carbon emissions trading simulation framework from a macro perspective, including identity and quota certification, quota trading, risk prevention and smart contracts management. Then, it establishes a blockchain-based carbon emissions trading simulation model and formulates the behavior rules of the government, investors and company agents and market transaction processes. Finally, it simulates the carbon emissions trading based on public chain and private chain on the Repast platform, and analyzes the simulation results.
Tangyang Jiang, Juncai Song, Yang Yu
No abstract is available for this record.
Khalid Almutairi, Seyyed Jalaladdin Hosseini Dehshiri, Seyyed Shahabaddin Hosseini Dehshiri, Ao Xuan Hoa · 8 authors
No abstract is available for this record.
Sayantan Bandhu Majumder
Purpose This paper aims to evaluate the hedging and safe haven properties of gold, cryptocurrency and commodities against the Indian equity market. Design/methodology/approach First, the authors estimate the hedging and safe haven abilities of gold, cryptocurrency and commodities for the Indian stock market and further verify whether such properties vary across the broad stock market indices and over the different degrees of market volatility. Second, the authors use the multivariate GARCH framework to calculate the dynamic hedge ratios and hedging efficiencies to compare the hedging properties of the alternative asset classes. Third, the authors verify the robustness of the general findings during the recent crisis emanating from the outbreak of the COVID-19 pandemic. Findings Gold, cryptocurrency and most commodities have significant hedging abilities. Only natural gas, crude oil and aluminum, on the other hand, have safe haven property. Neither gold nor cryptocurrency qualifies as a safe haven asset. On the other hand, the financialization of the Indian commodities market provides a significant dividend to investors in terms of hedging and safe haven capabilities. The authors find the least negative hedge ratio and the highest positive hedging effectiveness for the stock-crude oil and stock-natural gas portfolios. The central observations of the paper remain immune to the COVID crisis. Originality/value Focusing on the Indian equity market, the paper compares the diversification abilities of traditional assets like gold with those of the modern class of assets, including cryptocurrency and other commodities.
Paul Kengfai Wan, Lizhen Huang
No abstract is available for this record.
Charles Delmotte
No abstract is available for this record.
Shikah J. Alsunaidi, Fakhri Alam Khan
Most of the world’s countries are concerned with reducing harmful gas emissions. Some governments have made considerable attempts to address this problem. Saudi Arabia, for example, has taken significant steps to utilize renewable energy (RE) sources in addition to oil and gas. Consumers are encouraged to build small RE systems. These small grids will help people meet their daily electrical energy requirements. They can sell the excess to other customers. One of the major issues is managing the distribution and sale of RE. Blockchain-based peer-to-peer (P2P) networks can help overcome several obstacles to the implementation of a distributed RE management system (DREMS). However, several impediments may still stand in the way of its execution. Scalability and productivity are two of the most important considerations. The number of transactions made to the Blockchain network will increase in lockstep with the number of energy consumers. This will result in a significant lag in response. Understanding the renewable distributed energy system will aid in minimizing the effects of these roadblocks. Therefore, this research identifies the RE systems installation approaches, and how Blockchain technology can be utilized. It provides the solution requirements of any DREMS. Moreover, it proposes a new Blockchain-based framework for DREMS. And designs selective protocols of the proposed framework. The designed protocols are evaluated through a comparative analysis with the state of the art identified requirements.
Lei Wang, Yichao Ma, Zhu Liuzhu, Wang Xuli · 6 authors
No abstract is available for this record.
Yanjun Zuo
Renewable Energy Certificate (REC) is a market-based instrument and tracking mechanism for electricity generated from renewable sources as they flow into the power grid. The current REC issuance and tracking system is centralized, highly regulated, and operationally expensive. We proposed a blockchain-based, decentralized platform for REC issuance and trading by allowing greater traceability and transparency in transactions and reducing the operational costs of REC exchanges. The main design of the platform is to tokenize RECs and provides a decentralized, trustworthy mechanism for REC issuance, trading, verification, and retirement. The platform provides low costs, transparency, and easy to use. Representing RECs as blockchain tokens ensures that the trustworthy information is immutably recorded and available for all stakeholders to track and verify, thereby improving the reliability and security of the REC issuance and tracking systems. We present the design of the platform and detailed simulations of REC issuance and trading.