Refine Search
Input a time range for publish date searching.
Article Types
Publication Year

Articles ( Showing 1-20 of 36 items)
Searched for: [ Keywords: "Concordance Index" ] clear all
Journal Article
Machine Learning Survival Models restrictions: the case of startups time to failed with collinearity-related issues
by Diego Vallarino
Abstract
This research evaluates the efficacy of survival models in forecasting startup failures and investigates their economic implications. Several machine learning survival models, including Kernel SVM, DeepSurv, Survival Random Forest, and MTLR, are assessed using the concordance index (C-index) as a measure of prediction accuracy. The findings reveal that more sophisticated models [...] Read more

Journal Article
Similarities and differences between digitalization indexes
by Olena Korzhyk , Jorge Vareda Gomes  and  Gonçalo João
Abstract
Digitalization is nowadays one of the fastest developing processes. The adoption of digital technologies can provide innumerous opportunities for the organizations to evolve and gain competitive advantage by leveraging of technologies to respond to dynamic expectations and demands. Information about the country digitalization level is essential to decision makers in both public [...] Read more

Journal Article
Volume Accounts of FISIM: a Comparative Study between Stocks Deflation Method and Output Index Method
by Xiaoai Jia , Panpan Wang , Ziying Hao  and  Zhiyong Zheng
Abstract
Because of the complexity of indirect financial intermediary services (FISIM) accounting, the traditional price index deflation method can no longer meet its accounting needs. The manual of price and volume measurement suggests that the stock deflation method and output index method should be used to calculate the volume of FISIM. Comparing the two accounting frameworks, it can [...] Read more

Journal Article
The Sensitivity of the Human Development Index to Assumptions about Income
by Maria Cornachione Kula , Charles J. Moyer, Jr.  and  Priniti Panday
Abstract
The Human Development Index (HDI) aims to present a more robust picture of a country’s development status than that suggested by national income per capita. The HDI aggregates dimension indices based on transformed measures for the core values of health, education, and income per capita. Assumptions are made regarding the upper and lower bounds used to re-scale each core [...] Read more

Journal Article
The Effect of Logistics Performance Index of RCEP Countries on China's Export Trade
by Kaiwen Zhang
Abstract
The signing of RCEP has created new opportunities for the development of China's export trade, and international logistics capacity is an important factor affecting the conduct of international trade. This paper qualitatively describes and analyzes the LPI index and its sub-indicators of RCEP member countries, and empirically investigates the impact of logistics performance lev [...] Read more

Journal Article
Eco-Efficiency Evolution of Water-Intensive Polluters in the Yangtze River Economic Belt: A Spatial-Temporal Analysis Using the DEA-Malmquist Index
by Meiling Chen  and  Zeya Du
Abstract
Occupying a preeminent position as the globe’s most extensive economic corridor, the Yangtze River Economic Belt (YREB) serves as a crucial aquifer for 800 million individuals and harbors almost 50% of the country's paramount water-intensive contaminant producers. The ecological efficiency of these producers within the belt has increasingly come under scholarly scrutiny. [...] Read more

Journal Article
Do Dirty Energies Influence Sustainable Energy Indices Price Formation?
by Rui Dias  and  Rosa Galvão
Abstract
The clean energy revolution is a global concern. Cross-border collaboration is crucial for sharing knowledge, pooling resources, and tackling complex challenges on a global scale. International partnerships can accelerate innovation by drawing on diverse knowledge and experience from different regions. Access to capital is a key driver of innovation and entrepreneurship in clea [...] Read more

Journal Article
Divergences among ESG rating systems: Evidence from financial indexes
by Conghao Zhu  and  Cunyi Yang
Abstract
This paper specifically underscores the disparities among various ESG rating systems in China, highlighting their varied interpretations and emphasis on corporate financial factors. Analyzing data on Chinese listed firms from 2009-2022, we observe that while company size and leverage ratio uniformly correlate with ESG scores across rating agencies such as Bloomberg, Huazheng, W [...] Read more

Journal Article
Short-Term Shocks Between Central European Stock Markets: An Approach During The 2020 and 2022 Events
by Rui Manuel Teixeira Dias , Mariana Chambino  and  Nicole Rebolo Horta
Abstract
Stock indexes are used as a barometer of economic health, and fluctuations in these markets can have a substantial influence on the economy. For example, the Covid-19 pandemic caused severe economic disruption, as reflected in stock market indexes. Similarly, Russia's invasion of Ukraine has geopolitical implications that might undermine global trade and economic stability, imp [...] Read more

Letter
The impact of economic policy uncertainty on the profitability of China’s listed export enterprises
by Liping Zheng
Abstract
Based on the empirical data of 6110 listed export companies in China from 2010 to 2019, this paper studies the impact of China's economic policy uncertainty (EPU) index on the profitability of listed companies from the specific perspective of export companies, and analyzes the moderating effects of different factors on this impact. The results show that China's EPU index has a [...] Read more

Journal Article
Shifting Demographics and Economic Performance: Unraveling the Influence of Population Aging on GDP Dynamics and Regional Inequalities
by Eleonora Santos
Abstract
Understanding the economic trends and demographic dynamics of a country is crucial for policymakers and researchers to formulate effective strategies and policies. This study aims to examine the GDP trends and aging index dynamics in Portugal from 2011 to 2021, with a focus on regional disparities and their implications for demographic challenges. The findings highlight the rel [...] Read more

Journal Article
The relative persistence of income inequality and intra-generational income mobility in Poland during and after the Great Financial Crisis (2008-2015)
by Marcin Wron ski
Abstract
Poland has experienced a very sharp rise in income and wealth inequality after the economic transition. We measure the relative persistence of income inequality and intra-generational income mobility in Poland during the period 2008-2015. Our research is based on the panel survey data, our subsample includes 501 households. To measure the persistence of income inequality we cal [...] Read more

Journal Article
Research on the Heterogeneity of Green Biased Technology Progress in Chinese Industries: Decomposition Index Analysis Based on the Slacks-based measure integrating
by Yuxin Meng , Lu Liu , Zhenlong Xu , Wenwen Gong  and  Guanpeng Yan
Abstract
Green-biased technological progress takes into account the influence of energy input and pollution emissions, which is of great significance to China's green development. This paper decomposes technological progress into two categories: green input-biased technological progress (IBTC) and green output-biased technological progress (OBTC), using the Slacks-based measure integrat [...] Read more

Review
Liver fibrosis from viral hepatitis: advances in non-invasive diagnosis
by Jincheng Wang , Jinyu Sun , Tao Qin , Xiaohan Ren , Jin Zhang  and  Xiaojie Lu
Abstract
The stages of liver fibrosis can reflect the severity of chronic viral hepatitis and the probability of liver cancer. Biopsy is still regarded as the reference for staging fibrosis, but the invasive method is not suitable for first-line screening. In recent years, noninvasive methods for detecting virus-driven liver fibrosis have been developed rapidly, which mainly include bio [...] Read more

Letter
Time-frequency dependency between stock market volatility, and Islamic gold-backed and conventional cryptocurrencies
by Md. Mamunur Rashid  and  Md. Ruhul Amin
Abstract
We extend the Shariah-compliant digital assets and Islamic Fintech literature through exploring the time-frequency associations between the volatility index (VIX) and cryptocurrencies (both Islamic and traditional). Employing wavelet-based technique, we find that Islamic cryptocurrencies demonstrate low or no coherency with stock market volatility compared to traditional crypto [...] Read more

Journal Article
The Impact of RCEP on Dual Circulation and Greater Bay Area — From the Perspective of China’s Stock Market Conditions
by Bin Mo  and  He Nie
Abstract
With the daily data from Nov 20, 2019 to Oct 31, 2022, this paper examines the dynamic nonlinear effects of RCEP on Dual Circulation and Greater Bay Area stock market from a quantile perspective. The rolling window quantile regressions detect the positive effects of RCEP on Dual Circulation and Greater Bay Area stock markets with significant time-varying characteristics. Meanwh [...] Read more

Journal Article
Spatiotemporal pattern evolution and influencing factors of population spatial distribution in Changsha-Zhuzhou-Xiangtan urban agglomeration, China
by Weiping Wu , Wenhua Xie  and  Yuwei Sun
Abstract
Population, as a fundamental element in urban development, often reflects a city's economic development pattern through its spatial distribution and dynamic changes. Studying population spatial distribution is pivotal for bolstering the economic activity capacity in urban agglomerations and guiding regional economic health. Using the Changsha-Zhuzhou-Xiangtan urban agglomeratio [...] Read more

Journal Article
State intervention in land pricing and endogenous risk aversion
by Yong He
Abstract
This study explores the cause and effect of endogenous risk aversion in land pricing, where state intervention through taxation remains a general practice. Using a consumption-based asset pricing model incorporating taxation, it is shown that high taxation, due to the indexation effect, supporting land prices and reducing individuals' risk expectations, could lead to an endogen [...] Read more

Journal Article
Gender legislation in France: Empirical evidence from non-compliant firms
by Ouidad Yousfi  and  Nadia Loukil
Abstract
This paper studies non-compliant firms with gender legislation and why some businesses are taking the risk of not binding the gender quotas. It is conducted on firms listed on the SBF120 index, after the introduction of the gender law of Copé and Zimmermann, in 2011. Our findings show that gender diversity on advisory committees, unlike monitoring committees, is likely [...] Read more

Journal Article
Investigating the Joint Impact of Exchange Rate and Foreign Direct Investment Inflows on Domestic Interest Rate in Nigeria
by Innocent Chile Nzeh , Uche Collins Nwogwugwu , Maria Chinecherem Uzonwanne , Christopher Urua Kalu  and  Emmanuel Chinonye Akalazu
Abstract
The sensitive nature of interest rate has spurred empirical interests on the factors that determine it. This paper examined the joint impact of exchange rate and foreign direct investment inflows on interest rate in Nigeria over the period from 1981-2022. The study made use of the auto regressive distributed lag (ARDL) bounds test and results of findings reveal that in both the [...] Read more