Smart cities from low cost to expensive solutions under an optimal analysis [0.03%]
最优分析下的低成本与高成本智慧城市建设方案探究
Romeo-Victor Ionescu,Monica Laura Zlati,Valentin-Marian Antohi
Romeo-Victor Ionescu
This scientific approach mainly aims to develop a smart city/smart community concept to objectively evaluate the progress of these organizational forms in relation to other classical/traditional forms of city organizations. The elaborated m...
Understanding the adoption context of China's digital currency electronic payment [0.03%]
理解中国数字货币电子支付的采纳情境
Huosong Xia,Yangmei Gao,Justin Zuopeng Zhang
Huosong Xia
Central banks worldwide have started researching and developing central bank digital currencies (CBDCs). In the digital economy context, concerns regarding the integrity, competition, and privacy of CBDC systems have also gradually emerged....
A model-free approach to do long-term volatility forecasting and its variants [0.03%]
一种无模型的长期做波动率预测的方法及其变体
Kejin Wu,Sayar Karmakar
Kejin Wu
Volatility forecasting is important in financial econometrics and is mainly based on the application of various GARCH-type models. However, it is difficult to choose a specific GARCH model that works uniformly well across datasets, and the ...
Roman Mestre
Roman Mestre
This study proposes a wavelets approach to estimating time-frequency-varying betas in the capital asset pricing model (CAPM) framework. The dynamic of systematic risk across time and frequency is analyzed to investigate stock risk-profile r...
Tim Loughran,Bill McDonald
Tim Loughran
Public companies in the United States are required to file annual reports (i.e., Form 10-K) and disclose, among other things, the risk factors that may harm their stock price. The risk of a pandemic was well-known before the recent crisis, ...
Did weekly economic index and volatility index impact US food sales during the first year of the pandemic? [0.03%]
每周经济指数和波动率指数会对新冠疫情第一年期间的美国食品销售产生影响吗？
Narasingha Das,Partha Gangopadhyay
Narasingha Das
We explore the impacts of economic and financial dislocations caused by COVID-19 pandemic shocks on food sales in the United States from January 2020 to January 2021. We use the US weekly economic index (WEI) to measure economic dislocation...
Market capitalization shock effects on open innovation models in e-commerce: golden cut q-rung orthopair fuzzy multicriteria decision-making analysis [0.03%]
市场资本化冲击对电子商务开放创新模式的影响：黄金分割q-正交对偶模糊多准则决策分析
Nikita Moiseev,Alexey Mikhaylov,Hasan Dinçer et al.
Nikita Moiseev et al.
This research paper analyzes revenue trends in e-commerce, a sector with an annual sales volume of more than 340 billion dollars. The article evaluates, despite a scarcity of data, the effects on e-commerce development of the ubiquitous loc...
Extreme dependencies and spillovers between gold and stock markets: evidence from MENA countries [0.03%]
黄金市场与股市之间的极端依赖性和溢出效应：来自中东和北非国家的证据
Walid Mensi,Debasish Maitra,Refk Selmi et al.
Walid Mensi et al.
This study addresses whether gold exhibits the function of a hedge or safe haven as often referred to in academia. It contributes to the existing literature by (i) revisiting this question for the principal stock markets in the Middle East ...
Revisiting the nexus between fiscal decentralization and CO2 emissions in South Africa: fresh policy insights [0.03%]
南非财政分权与二氧化碳排放之间联系的再考察：新的政策启示
Maxwell Chukwudi Udeagha,Marthinus Christoffel Breitenbach
Maxwell Chukwudi Udeagha
The argument over fiscal decentralization and carbon dioxide emission (CO2) reduction has received much attention. However, evidence to back this claim is limited. Economic theory predicts that fiscal decentralization affects environmental ...
Haji Suleman Ali,Feiyan Jia,Zhiyuan Lou et al.
Haji Suleman Ali et al.
Despite blockchain's potential to transform corporations by providing new ways of organizing business processes and handling information, extant research pays inadequate attention to how and under what conditions blockchain technology provi...