An overview of Fintech applications to solve the puzzle of health care funding: state-of-the-art in medical crowdfunding [0.03%]
金融科技应用于解决医疗保健资金问题的现状：医疗众筹综述
Laura Grassi,Simone Fantaccini
Laura Grassi
Crowdfunding is emerging as an alternative form of funding for medical purposes, with capital being raised directly from a broader and more diverse audience of investors. In this paper, we have systematically researched and reviewed the lit...
Impact of COVID-19 on G20 countries: analysis of economic recession using data mining approaches [0.03%]
新冠肺炎疫情对二十国集团成员的影响：基于数据挖掘方法的经济衰退分析
Osman Taylan,Abdulaziz S Alkabaa,Mustafa Tahsin Yılmaz
Osman Taylan
The G20 countries are the locomotives of economic growth, representing 64% of the global population and including 4.7 billion inhabitants. As a monetary and market value index, real gross domestic product (GDP) is affected by several factor...
Effects of investor sentiment on stock volatility: new evidences from multi-source data in China's green stock markets [0.03%]
投资者情绪对股票市场波动性影响研究——来自中国绿色股票市场的证据
Yang Gao,Chengjie Zhao,Bianxia Sun et al.
Yang Gao et al.
The effect of investor sentiment on stock volatility is a highly attractive research question in both the academic field and the real financial industry. With the proposal of China's "dual carbon" target, green stocks have gradually become ...
Ozkan Haykir,Ibrahim Yagli
Ozkan Haykir
This study investigates speculative bubbles in the cryptocurrency market and factors affecting bubbles during the COVID-19 pandemic. Our results indicate that each cryptocurrency covered in the study presented bubbles. Moreover, we found th...
Raising capital amid economic policy uncertainty: an empirical investigation [0.03%]
经济政策不确定性下的融资问题：实证研究
Dawood Ashraf,Mohsin Khawaja,M Ishaq Bhatti
Dawood Ashraf
This paper investigates how economic policy uncertainty affects firms' frequency and their choice of financial instruments to raise capital. By applying a three-step sequential framework over a sample of 6834 publicly listed US non-financia...
Editor's introduction [0.03%]
编者按
Gang Kou
Gang Kou
Emre Cevik,Buket Kirci Altinkeski,Emrah Ismail Cevik et al.
Emre Cevik et al.
This study examines the relationship between positive and negative investor sentiments and stock market returns and volatility in Group of 20 countries using various methods, including panel regression with fixed effects, panel quantile reg...
Higher-order dynamic effects of uncertainty risk under thick-tailed stochastic volatility [0.03%]
厚尾随机波动下的不确定性风险的高阶动态效应
Xiao-Li Gong,Jin-Yan Lu,Xiong Xiong et al.
Xiao-Li Gong et al.
Sudden and uncertain events often cause cross-contagion of risk among various sectors of the macroeconomy. This paper introduces the stochastic volatility shock that follows a thick-tailed Student's t-distribution into a high-order approxim...
Uncertainty index and stock volatility prediction: evidence from international markets [0.03%]
不确定性指数与股市波动预测：国际市场的证据
Xue Gong,Weiguo Zhang,Weijun Xu et al.
Xue Gong et al.
This study investigates the predictability of a fixed uncertainty index (UI) for realized variances (volatility) in the international stock markets from a high-frequency perspective. We construct a composite UI based on the scaled principal...
Peter Fratrič,Giovanni Sileno,Sander Klous et al.
Peter Fratrič et al.
Fraudulent actions of a trader or a group of traders can cause substantial disturbance to the market, both directly influencing the price of an asset or indirectly by misinforming other market participants. Such behavior can be a source of ...