arXiv - QuantFin - Economics最新文献

Uncertainty of Supply Chains: Risk and Ambiguity 供应链的不确定性：风险与模糊性

arXiv - QuantFin - Economics Pub Date : 2024-05-06 DOI: arxiv-2405.03451

d'Artis Kancs

{"title":"Uncertainty of Supply Chains: Risk and Ambiguity","authors":"d'Artis Kancs","doi":"arxiv-2405.03451","DOIUrl":"https://doi.org/arxiv-2405.03451","url":null,"abstract":"Motivated by the recently experienced systemic shocks (the COVID-19 pandemic\u0000and the full-fledged Russia's war of aggression against Ukraine) - that have\u0000created new forms of uncertainties to our supplies - this paper explores the\u0000supply chain robustness under risk aversion and ambiguity aversion. We aim to\u0000understand the potential consequences of deeply uncertain systemic events on\u0000the supply chain resilience and how does the information precision affect\u0000individual agents' choices and the chain-level preparedness to aggregate\u0000shocks. Augmenting a parsimonious supply chain model with uncertainty, we\u0000analyse the relationship between the upstream sourcing decisions and the supply\u0000chain survival probability. Both risk-averse and ambiguity-averse\u0000individually-optimising agents' upstream sourcing paths are efficient but can\u0000become vulnerable to aggregate shocks. In contrast, a chain-level coordination\u0000of downstream firm sourcing decisions can qualitatively improve the robustness\u0000of the entire supply chain compared to the individual decision-making baseline.\u0000Such a robust decision making ensures that in the presence of an aggregate\u0000shock - independently of its realisation - part of upstream suppliers will\u0000survive and the final goods' supply will be ensured even under the most\u0000demanding circumstances. Our results also indicate that an input source\u0000diversification extracts a cost in foregone efficiency.","PeriodicalId":501487,"journal":{"name":"arXiv - QuantFin - Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Crypto Market Analysis & Real-Estate Business Protocol Proposal | Application of Ethereum Blockchain 加密货币市场分析与房地产商业协议提案｜以太坊区块链的应用

arXiv - QuantFin - Economics Pub Date : 2024-05-04 DOI: arxiv-2405.02547

Sid Bhatia, Samuel Gedal, Himaya Jeyakumar Grace Lee, Ravinder Chopra, Daniel Roman, Shrijani Chakroborty

{"title":"Crypto Market Analysis & Real-Estate Business Protocol Proposal | Application of Ethereum Blockchain","authors":"Sid Bhatia, Samuel Gedal, Himaya Jeyakumar Grace Lee, Ravinder Chopra, Daniel Roman, Shrijani Chakroborty","doi":"arxiv-2405.02547","DOIUrl":"https://doi.org/arxiv-2405.02547","url":null,"abstract":"This paper examines the dynamics of the cryptocurrency market and proposes a\u0000novel blockchain-based protocol for real estate transactions. Our analysis\u0000includes a detailed review of price trends, volatility, and correlations within\u0000the cryptocurrency market, focusing on major assets like Bitcoin, Ethereum, and\u0000Tether. We provide a critical assessment of the impact of significant market\u0000events, such as the FTX bankruptcy, highlighting the vulnerabilities and\u0000resilience of the crypto market. The study also explores the potential of\u0000blockchain technology to innovate real estate transactions by enabling the\u0000secure and transparent handling of property deeds without traditional\u0000intermediaries. We introduce a blockchain protocol that reduces transaction\u0000costs, enhances security, and increases transparency, making real estate\u0000transactions more accessible and efficient. Our proposal aims to leverage the\u0000inherent benefits of blockchain to address real-world challenges in real estate\u0000transactions, providing a scalable and secure platform for property sales in a\u0000global market.","PeriodicalId":501487,"journal":{"name":"arXiv - QuantFin - Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Monetary Policies on Green Financial Markets: Evidence from a Multi-Moment Connectedness Network 货币政策对绿色金融市场的影响：来自多时刻关联网络的证据

arXiv - QuantFin - Economics Pub Date : 2024-05-04 DOI: arxiv-2405.02575

Tingguo Zheng, Hongyin Zhang, Shiqi Ye

{"title":"Monetary Policies on Green Financial Markets: Evidence from a Multi-Moment Connectedness Network","authors":"Tingguo Zheng, Hongyin Zhang, Shiqi Ye","doi":"arxiv-2405.02575","DOIUrl":"https://doi.org/arxiv-2405.02575","url":null,"abstract":"This paper introduces a novel multi-moment connectedness network approach for\u0000analyzing the interconnectedness of green financial market. Focusing on the\u0000impact of monetary policy shocks, our study reveals that connectedness within\u0000the green bond and equity markets varies with different moments (returns,\u0000volatility, skewness, and kurtosis) and changes significantly around Federal\u0000Open Market Committee (FOMC) events. Static analysis shows a decrease in\u0000connectedness with higher moments, while dynamic analysis highlights increased\u0000sensitivity to event-driven shocks. We find that both tight and loose monetary\u0000policy shocks initially elevate connectedness within the first six months.\u0000However, the effects of tight shocks gradually fade, whereas loose shocks may\u0000reduce connectedness after one year. These results offer insight to\u0000policymakers in regulating sustainable economies and investment managers in\u0000strategizing asset allocation and risk management, especially in\u0000environmentally focused markets. Our study contributes to understanding the\u0000complex dynamics of the green financial market in response to monetary\u0000policies, helping in decision-making for sustainable economic development and\u0000financial stability.","PeriodicalId":501487,"journal":{"name":"arXiv - QuantFin - Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Economy and Public Diplomacy: An Analysis of RT's Economic Content and Context on Facebook 经济与公共外交：分析 RT 在 Facebook 上的经济内容和背景

arXiv - QuantFin - Economics Pub Date : 2024-05-03 DOI: arxiv-2405.01798

Ayse D. Lokmanoglu, Carol K. Winkler, Kareem El Damanhoury, Virginia Massignan, Esteban Villa-Turek, Keyu Alexander Chen

引用次数: 0

Evaluating Production Planning and Control Systems in Different Environments: A Comparative Simulation Study 评估不同环境下的生产计划和控制系统：模拟比较研究

arXiv - QuantFin - Economics Pub Date : 2024-05-03 DOI: arxiv-2405.02015

Wolfgang Seiringer, Balwin Bokor, Klaus Altendorfer

引用次数: 0

Energy Price and Workload Related Dispatching Rule: Balancing Energy and Production Logistics Costs 能源价格与工作量相关的调度规则：平衡能源和生产物流成本

arXiv - QuantFin - Economics Pub Date : 2024-05-03 DOI: arxiv-2405.02445

Balwin Bokor, Wolfgang Seiringer, Klaus Altendorfer, Thomas Felberbauer

引用次数: 0

Simulating the economic impact of rationality through reinforcement learning and agent-based modelling 通过强化学习和代理建模模拟理性对经济的影响

arXiv - QuantFin - Economics Pub Date : 2024-05-03 DOI: arxiv-2405.02161

Simone Brusatin, Tommaso Padoan, Andrea Coletta, Domenico Delli Gatti, Aldo Glielmo

{"title":"Simulating the economic impact of rationality through reinforcement learning and agent-based modelling","authors":"Simone Brusatin, Tommaso Padoan, Andrea Coletta, Domenico Delli Gatti, Aldo Glielmo","doi":"arxiv-2405.02161","DOIUrl":"https://doi.org/arxiv-2405.02161","url":null,"abstract":"Agent-based models (ABMs) are simulation models used in economics to overcome\u0000some of the limitations of traditional frameworks based on general equilibrium\u0000assumptions. However, agents within an ABM follow predetermined, not fully\u0000rational, behavioural rules which can be cumbersome to design and difficult to\u0000justify. Here we leverage multi-agent reinforcement learning (RL) to expand the\u0000capabilities of ABMs with the introduction of fully rational agents that learn\u0000their policy by interacting with the environment and maximising a reward\u0000function. Specifically, we propose a 'Rational macro ABM' (R-MABM) framework by\u0000extending a paradigmatic macro ABM from the economic literature. We show that\u0000gradually substituting ABM firms in the model with RL agents, trained to\u0000maximise profits, allows for a thorough study of the impact of rationality on\u0000the economy. We find that RL agents spontaneously learn three distinct\u0000strategies for maximising profits, with the optimal strategy depending on the\u0000level of market competition and rationality. We also find that RL agents with\u0000independent policies, and without the ability to communicate with each other,\u0000spontaneously learn to segregate into different strategic groups, thus\u0000increasing market power and overall profits. Finally, we find that a higher\u0000degree of rationality in the economy always improves the macroeconomic\u0000environment as measured by total output, depending on the specific rational\u0000policy, this can come at the cost of higher instability. Our R-MABM framework\u0000is general, it allows for stable multi-agent learning, and represents a\u0000principled and robust direction to extend existing economic simulators.","PeriodicalId":501487,"journal":{"name":"arXiv - QuantFin - Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Harmony in the Australian Domain Space 澳大利亚领域空间的和谐

arXiv - QuantFin - Economics Pub Date : 2024-04-11 DOI: arxiv-2404.10006

Xian Gong, Paul X. McCarthy, Marian-Andrei Rizoiu, Paolo Boldi

{"title":"Harmony in the Australian Domain Space","authors":"Xian Gong, Paul X. McCarthy, Marian-Andrei Rizoiu, Paolo Boldi","doi":"arxiv-2404.10006","DOIUrl":"https://doi.org/arxiv-2404.10006","url":null,"abstract":"In this paper we use for the first time a systematic approach in the study of\u0000harmonic centrality at a Web domain level, and gather a number of significant\u0000new findings about the Australian web. In particular, we explore the\u0000relationship between economic diversity at the firm level and the structure of\u0000the Web within the Australian domain space, using harmonic centrality as the\u0000main structural feature. The distribution of harmonic centrality values is\u0000analyzed over time, and we find that the distributions exhibit a consistent\u0000pattern across the different years. The observed distribution is well captured\u0000by a partition of the domain space into six clusters; the temporal movement of\u0000domain names across these six positions yields insights into the Australian\u0000Domain Space and exhibits correlations with other non-structural\u0000characteristics. From a more global perspective, we find a significant\u0000correlation between the median harmonic centrality of all domains in each OECD\u0000country and one measure of global trust, the WJP Rule of Law Index. Further\u0000investigation demonstrates that 35 countries in OECD share similar harmonic\u0000centrality distributions. The observed homogeneity in distribution presents a\u0000compelling avenue for exploration, potentially unveiling critical corporate,\u0000regional, or national insights.","PeriodicalId":501487,"journal":{"name":"arXiv - QuantFin - Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140616869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multicriteria Analysis Model in Sustainable Corn Farming Area Planning 可持续玉米种植区规划中的多标准分析模型

arXiv - QuantFin - Economics Pub Date : 2024-04-02 DOI: arxiv-2404.01782

Abdul Haris, Muhammad Munawir Syarif, Hamed Narolla, Rachmat Hidayat

引用次数: 0

Methods of Stochastic Field Theory in Non-Equilibrium Systems -- Spontaneous Symmetry Breaking of Ergodicity 非平衡系统中的随机场论方法 -- Ergodicity 的自发对称性破坏

arXiv - QuantFin - Economics Pub Date : 2024-03-30 DOI: arxiv-2404.01333

Tatsuru Kikuchi

引用次数: 0