1,735,556 research outputs found
News sentiment and DeFi coin returns: An empirical analysis
Get PDFThis study investigates the influence of news-based sentiment on the returns of Decentralised Finance (DeFi) coins using a sample of 27 coins from January 2017 to March 2022. Our results indicate that news sentiment significantly impacts DeFi returns, with negative sentiment exerting a stronger influence than positive sentiment. Transaction volume and network security also emerge as critical drivers of DeFi coin returns. Smaller coins are more sensitive to news sentiment, showing greater return volatility. The impact of news-based sentiment is more pronounced during weekdays , likely due to reduced participation by institutional investors and trading algorithms. These findings have important implications for investors and policymakers, suggesting multiple pathways for market manipulation under specific conditions
Cryptocurrencies Bitcoin and DeFi
No full textThe aim of the thesis is a comprehensive analysis of blockchain technology and decentralized financial services (DeFi). The work focuses on the development and analysis of key concepts that shape this rapidly evolving sector of the financial industry. In the introductory part of the thesis, the author acquaints readers with the basic characteristics of the blockchain. This is followed by a focus on the issues of Ethereum and smart contracts, while describing oracles and their pivotal role in the entire DeFi. The next section of the work is dedicated to stablecoins and the risks associated with their use. Here, the author thoroughly analyzes individual stablecoins that have systemic importance, and rationally describes the risks that users may expose themselves to when using them. This is followed by an analysis of the history and risks of both centralized and decentralized exchanges. The author does not overlook other fundamental sectors of DeFi, such as decentralized lending and borrowing, synthetic assets, liquid staking, yield, insurance, and RWA. At the conclusion of the thesis, a detailed description of the risks associated with DeFi is provided.Cílem diplomové práce je komplexní analýza technologie blockchain a decentralizovaných finančních služeb (DeFi). Práce se zaměřuje na vývoj a analýzu klíčových konceptů, které formují tento rychle se rozvíjející sektor finančního průmyslu. V úvodní části práce autor seznamuje čtenáře se základními vlastnostmi blockchainu. Následuje zaměření na problematiku Etherea a smart kontraktů, zároveň popisuje oracles a jejich stěžejní roli v celém DeFi. Další část práce je věnována stablecoinům a rizikům, která jsou s jejich použitím spojena. Autor zde podrobně analyzuje jednotlivé stablecoiny, které mají systémový význam, a racionálně popisuje rizika, jimž se může uživatel při jejich používání vystavit. Následuje rozbor historie a rizik jak centralizovaných, tak decentralizovaných burz. Autor nenechává bez povšimnutí další zásadní sektory DeFi, jako jsou decentralizované půjčky a zápůjčky, syntetická aktiva, liquid staking, yield, pojištění a RWA. Závěrem práce poskytuje podrobný popis rizik spojených s DeFi
A Comparative Analysis of User Behaviour in DeFi Applications
No full textThe Decentralised Finance (DeFi) community is continuously being affected by various types of security incidents that are causing high levels of financial loss. There have been multiple tools proposed for security attack detection, however, these cannot be used for general audit in DeFi applications as they focus on specific attacks or areas. This work aims to present how behavioural clustering and analysis can be leveraged to present insights into common user and smart contract behaviour in DeFi applications. Preliminary results are presented for two commonly known applications, Sushiswap and Uniswap V3 that lay down the foundation for general DeFi security audit.Full Tex
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Regulation of DeFi Lending
No full textThe rise of intermediary-less decentralized finance (“DeFi”) lending has led many to wonder how it should be regulated. Although DeFi lending could potentially offer reduced risks of centralization and market frictions, investors in DeFi lending are currently exposed to centralized risks and losses in the volatile market in the absence of regulation. The SEC suggested that the agency might regulate the sector under the federal securities laws. A truly decentralized lending project, however, does not involve any centralized entity that could carry the burden of compliance with the securities laws. This Note shows that many DeFi lending projects are not truly decentralized and are in various stages of decentralization. Unlike P2P lenders and financial intermediaries that bear the costs of compliance, many DeFi developers seek to build automated lending systems and gradually relinquish their control over their creation. However, with the lack of regulation, the investors have no means to tell actors who seek to build secure decentralized systems from those who do not in the early stage of DeFi protocol development. To address the issue, this Note proposes a three-part framework that would oversee the process of decentralization for DeFi lending projects, drawing its structure from the U.S. banking regulation focused on supervision. First, the framework recognizes the value of decentralization in reducing market frictions and risks of centralization. Second, the framework establishes a federal agency that oversees the process of decentralization on the flexible safety and soundness standard of Glass-Steagall Act. Third, the framework grants enforcement powers to the federal agency to sanction DeFi platforms that do not comply with government regulations
Decentralized Finance (DeFi)
No full textDeFi – ‘Decentralized Finance’ – is the latest buzzword in the world of FinTech, RegTech, cryptocurrencies and digital assets. Yet little is really known about its meaning, legal implications and policy consequences. This paper introduces DeFi, puts DeFi in the context of the traditional financial economy, connects DeFi to Open Banking and ends with some policy considerations. We suggest that decentralization has the potential to undermine traditional forms of accountability and potentially erodes the effectiveness of traditional financial regulation and enforcement. At the same time, where parts of the financial services value chain are decentralized, there will be a reconcentration of a different (but possibly less regulated, less visible and less transparent) part of the value chain. DeFi regulation supervision could and should focus on this reconcentrated part to ensure effective oversight and risk control. Looking more broadly, decentralized finance offers the potential for an entirely new way to design regulation, building regulatory approaches into DeFi as a design feature, potentially decentralizing both finance and its regulation: the ultimate expression of RegTech.link_to_OA_fulltex
DeFi Lending: Beyond the Hype
No full textWith an aggregate liquidity supply of more than 45 billion, decentralized lending protocols are gaining traction as an important component of the decentralized finance (DeFi) ecosystem. In this thesis, I analyze the constraints of conventional money markets dominated by banks and lending platforms, as well as the benefits of DeFi lending protocols for tackling entrenched inefficiencies in the current lending environment. Using the case studies of Anchor, Maker, Aave, and Compound, this thesis explores the mechanics of DeFi lending systems. I investigate DeFi lending's ongoing reliance on the current financial system, as well as its exploits, prospective innovations, and risks, before concluding with a market summary, future projection, and potential future research areas via using Twitter data
Understanding digital bubbles amidst the COVID-19 pandemic: Evidence from DeFi and NFTs()()
No full textThis paper investigates digital financial bubbles amidst the COVID-19 pandemic. Using a sample of 9 DeFi tokens, 3 NFTs, Bitcoin, and Ethereum, we detect several bubbles overlapping the examined cryptoassets. We also uncover DeFi and NFT-specific bubbles in Summer 2020 suggesting distinct driving factors for this class of assets. We document that DeFi and NFTs bubbles are less recurrent but have higher magnitudes than cryptocurrencies’ bubbles. We also find that COVID-19 and trading volume exacerbate bubble occurrences, while Total Value Locked (TVL) is negatively associated with cryptoassets’ bubbles. Our results suggest that TVL can be used as a tool for market monitoring
Amiliya Defi Oktafia
No full textIndonesia karena sebagian besar penduduk Indonesia makanan pokoknya adalah
beras. Salah satu upaya untuk mempertahankan kecukupan pangan adalah melalui
Padi pengendalian organisme pengganggu tanaman. Insektisida merupakan sarana yang
dibutuhkan untuk melindungi tanaman.
Tujuan penelitian untuk 1)
Hasil yang diperoleh bahwa petani belum menggunakan insektisida
dengan tepat pada tanaman padi terutama dalam pemilihan jenis insektisida dan
kesesuaian dengan organisme pengganggu tanama
DeFi Lending: Beyond the Hype
No full textWith an aggregate liquidity supply of more than 45 billion, decentralized lending protocols are gaining traction as an important component of the decentralized finance (DeFi) ecosystem. In this thesis, I analyze the constraints of conventional money markets dominated by banks and lending platforms, as well as the benefits of DeFi lending protocols for tackling entrenched inefficiencies in the current lending environment. Using the case studies of Anchor, Maker, Aave, and Compound, this thesis explores the mechanics of DeFi lending systems. I investigate DeFi lending's ongoing reliance on the current financial system, as well as its exploits, prospective innovations, and risks, before concluding with a market summary, future projection, and potential future research areas via using Twitter data
DeFi Auditing: Mechanisms, Effectiveness, and User Perceptions
Get PDFDecentralized Finance (DeFi), a blockchain-based financial ecosystem, suffers from smart contract vulnerabilities that led to a loss exceeding 3.24 billion USD by April 2022 [67]. To address this, blockchain firms audit DeFi applications, a process known as DeFi auditing. Our research aims to comprehend the mechanism and efficacy of DeFi auditing. We discovered its ability to detect vulnerabilities in smart contract logic and interactivity with other DeFi entities, but also noted its limitations in communication, transparency, remedial action implementation, and in preventing certain DeFi attacks. Moreover, our interview study delved into user perceptions of DeFi auditing, unmasking gaps in awareness, usage, and trust, and offering insights to address these issues
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