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Articles ( Showing 1-20 of 98 items)
Searched for: [ Keywords: "survival analysis" ] 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
A Comparative Machine Learning Survival Models Analysis for Predicting Time to Bank Failure in the US (2001-2023)
by Diego Vallarino
Abstract
This study investigates the likelihood of time to bank failures in the US between 2001 and April 2023, based on data collected from the Federal Deposit Insurance Corporation's report on "Bank Failures in Brief - Summary 2001 through 2023". The dataset includes 564 instances of bank failures and several variables that may be related to the likelihood of such events, such as asse [...] Read more

Journal Article
Temporal Dynamics of Countries' Journey to Cluster-Specific GDP per Capita: A Comprehensive Survival Study
by Diego Vallarino
Abstract
This research delves into the temporal dynamics of a nation's pursuit of a targeted GDP per capita level, employing five different survival machine learning models, remarkably Deep Learning algorithm (DeepSurv) and Survival Random Forest. This nuanced perspective moves beyond static evaluations, providing a comprehensive understanding of the developmental processes shaping econ [...] Read more

Journal Article
Welfare fragmented information effects: The cost-benefit analysis and Trade-offs
by Emna Trabelsi
Abstract
We offer an extensive analysis of the significance of information within the realm of Gaussian quadratic economies. We build upon the seminal papers of Morris and Shin (2002, 2007) and consider a signal game of incomplete information. Particularly, we question the suitability of partial transparency portrayed by fragmented information in addition to the private signal in terms [...] Read more
Hit Affiliation:
University of Tunis, Higher Institute of Management of Tunis, Social and Economic Policy Analysis Laboratory. Tunisia.

Journal Article
LTBP1 promotes the progression of triple negative breast cancer via activating the RhoA/ROCK signaling pathway
by Jingcheng Zhang , Hong Deng  and  Jun Wang
Abstract
The latent transforming growth factor-beta (TGF-β) binding protein 1 (LTBP1) has been implicated in various cellular processes, but its role in triple-negative breast cancer (TNBC) remains unclear. In this study, we investigated the impact of LTBP1 on TNBC progression and its underlying mechanisms. Analysis of online datasets revealed elevated LTBP1 mRNA expression in brea [...] Read more

Journal Article
An Operational Framework for a Low-carbon, Green Growth Economy: CO-STIRPAT Dynamic System
by Ick Jin
Abstract
This paper presents an operational framework for assessing the trajectories of production, energy, emissions, and capital accumulation to ensure the implementation of Nationally Determined Contributions (NDCs). The framework combines widely used methodologies (STIRPAT, system dynamics, and optimization) to simulate the pathways of variables until a target year. The CO-STIRPAT d [...] Read more
Hit Affiliation:
Director General, Economic Analysis Department of the National Assembly Budget Office, Seoul, Korea

Journal Article
Credit risk and Tunisian bank stability in the Covid-19 wave
by Emna Trabelsi  and  Malek Ben Mansour
Abstract
Banks are at the core of economic functioning in various countries and are the cause of their development in various fields. In a changing environment, they must deal with certain risks and maintain financial stability as the ultimate objective. The primary objective of this study is to examine the correlation between credit risk and bank stability within the Tunisian banking s [...] Read more
Hit Affiliation:
Social and Economic Policy Analysis Laboratory, Higher Institute of Management of Tunis, University of Tunis, Tunisia

Journal Article
Performance evaluation of user value in digital economy industry: Based on the improvement EVA model
by Nannan Zhou , Changluan Shao , Yongqing Chen  and  Huaming Liu
Abstract
With the advancement of science and technology and the advent of the digital economy, the digital economy has become a new driving force for economic development, and the digital economy industry at home and abroad is facing new opportunities for survival and development. However, due to the special development model and profit mode of the digital economy industry, the traditio [...] Read more

Journal Article
Evaluating Classical and Artificial Intelligence Methods for Credit Risk Analysis
by Bruno Reis  and  António Quintino
Abstract
Credit scoring remains one of the most important subjects in financial risk management. Although the methods in this field have grown in sophistication, further improvements are necessary. These advances could translate in major gains for financial institutions and other companies that extend credit by diminishing the potential for losses in this process. This research seeks to [...] Read more

Letter
Progress, Evolving Paradigms and Recent Trends in Economic Analysis
by Robertas Damasevicius
Abstract
This paper provides a thorough review of the shifting landscape of economic analysis, spotlighting recent trends and predicting future paths. While traditional economic models remain key for interpreting economic activity, they are being supplemented by fresh methods and cross-disciplinary viewpoints. The increased attention to inequality studies, using advanced statistical tec [...] Read more

Journal Article
Migration and Remittances: A network analysis
by Thi Hong Hanh Pham
Abstract
Applying the network analysis’ tools and a large dataset over 2000-2017, this paper provides insights to the patterns and structure of global and regional migration and remittances as well as the connection between these two phenomena inside a complex network. We reveal that even though the structure of migration and remittance networks is slightly altering, the major cha [...] Read more

Journal Article
Correlation between the immune microenvironment and bladder cancer based on a prognostic miRNA risk model
by Kun Mei , Zilu Chen , Le Huang , Joyce Wang  and  Yong Wei
Abstract
Background: Bladder cancer (BLCA), particularly invasive BLCA, has become a medical burden worldwide as it is associated with recurrence and easy metastasis. There are specific differences in the expression of various miRNAs in tumor and normal tissues. Hence, miRNAs can be used as biomarkers for tumor diagnosis and prognostic evaluation. The current study aimed to predict the [...] Read more

Journal Article
Portfolio analysis with Sharpe ratios resampled with bootstrapping
by Rolando Gonzales Martinez
Abstract
In this paper, a portfolio analysis is carried out using the Sharpe ratio to identify the optimal market portfolio. The measure of investment performance with a Sharpe ratio is compared to results obtained with bootstrapped resamples of the Sharpe ratio. The results indicate that the choice of the market portfolio is highly affected by the uncertainty regarding the estimation o [...] Read more

Journal Article
Probability of Achieving NDC and Implications for Climate Policy: CO-STIRPAT Approach
by Ick Jin
Abstract
This paper presents an analytical framework to assess the probability of achieving nationally determined contributions (NDC). The prediction model based on the Kaya identity is used to simulate the pathway of carbon emission until the target year. Applying the modified STIRPAT framework (named CO-STIRPAT) to data observed in South Korea shows that the probability that the predi [...] Read more
Hit Affiliation:
Director General, Economic Analysis Department of the National Assembly Budget Office, Seoul, Korea

Journal Article
Innovation in creative industries: Bibliometrix analysis and research agenda
by Paulin Gohoungodji
Abstract
Innovation has received a great attention in the creative industries literature. We propose in this study a bibliometric method to examine the literature on innovation in creative industries (ICI). A file of 656 manuscripts published on ICI between 1998 and 2022 was retrieved from the Web of Science Core Collection for analysis. The results highlight the evolution of study volu [...] Read more

Journal Article
Game Analysis on the effect of consumer coupons and its impact on CPI
by Xiuhai Huang  and  Ping Yu
Abstract
According to economic theory and common sense, the issuance of consumption coupons on one hand stimulated the increasing of residents' consumption, but on the other pushed up the price level. In this paper, using the theory of mechanism design, the game model was built to analyze the relationship between the effect of consumer coupons during the epidemic and the number of merch [...] Read more

Journal Article
Is democracy affecting the economic policy responses to COVID-19? A cross-country analysis
by João Ricardo Costa Filho  and  António Neto
Abstract
How does democracy relate to the initial economic policy responses to Covid-19? Using a cross country analysis, we find that countries with a higher degree of democracy have stronger economic policy responses than their peers. However, when we separate monetary and financial policies from fiscal policy, democracy is not associated with the latter when we control for the income [...] Read more

Letter
Analysis of the Mediating Effect of Economic Policy Uncertainty Affecting Commercial Bank Credit
by Juan Meng  and  Zhe Zhou
Abstract
We analyze the annual microdata of China's 100 commercial banks from 2007 to 2018 using the mediating effect analysis method, analyze the negative impact of economic policy uncertainty on the credit scale of commercial banks, and then verify the intermediary effects of the operational risks and short-term capital liquidity of commercial banks in the impact of economic policy un [...] Read more

Journal Article
Portfolio Allocation with Medical Expenditure Risk-A Life Cycle Model and Machine Learning Analysis
by You Du  and  Weige Huang
Abstract
This paper explores how the medical expenditure risk affects the households’ portfolio choice across health status theoretically in a life cycle model and empirically using machine learning methods. Medical expenditure risk, as a background risk, has the potential to influence households’ financial decisions. A higher medical expenditure risk leads to a larger fluct [...] Read more

Journal Article
How do R&D factors affect total factor productivity: based on stochastic frontier analysis method
by Shikuan Zhao , Wen Tian  and  Abd Alwahed Dagestani
Abstract
Based on provincial panel data from 1998-2018, this paper estimates research and development (R&D) factors, and a stochastic frontier analysis (SFA) model is constructed to examine the effects of R&D factors on regional total factor productivity (TFP). The results show that both R&D capital stock and R&D personnel can significantly promote regional TFP, but the [...] Read more