Ştefan Cristian Gherghina

Bucharest University of Economic Studies

26H指数

118论文数

2.6K被引数

收录论文 30

发表时间

Crisis-regime spillovers’ contractedness of green and non-green cryptocurrencies and carbon market resilience under global asymmetrical disruptions 绿色与非绿色加密货币在危机模式下溢出的收缩性及全球不对称冲击下的碳市场韧性

Energy & Environment

IF4.8

2026-04-16

PREAI

Ștefan Cristian Gherghina; Daniel Ștefan Armeanu; Jean Vasile Andrei; Camelia Cătălina Joldeș

Volatility, spillovers, and market resilience in sustainable crypto ecosystems under the systemic stress of the twin transition and geopolitical conflicts 波动性、溢出效应以及可持续加密生态系统在双重转型和地缘政治冲突的系统压力下的市场韧性

The Journal of Technology Transfer

IF0

2026-03-10

PREAI

Daniel Ştefan Armeanu; Jean Vasile Andrei; Ştefan Cristian Gherghina; Camelia Cătălina Joldeş

Navigating the pandemic storm: how oil volatility, CDS, and the fear index altered BRICS markets 穿越疫情风暴：石油波动性、CDS和恐惧指数如何改变了BRICS市场

Future Business Journal

IF2.7

2026-02-16

OAAI

Ștefan Cristian Gherghina; Asuman Erben Yavuz; Bade Ekim Kocaman; Adalet Hazar; Şenol Babuşcu; Mesut Doğan

A Transfer-Learning Approach for Detection of Multiclass Synthetic Skin Cancer Images Generated by Deep Generative Models to Prevent Medical Insurance Fraud 基于深度生成模型生成的多类合成皮肤癌图像的检测方法：一种用于防止医疗保险欺诈的迁移学习途径

Mathematical and Computational Applications

IF2.1

2026-02-15

OAAI

Tariq, Osama; Arshed, Muhammad Asad; Kabir, Muhammad; Ijaz, Khalid; Gherghina, Stefan Cristian; Batool, Hafiza Bukhtawer

Operational leanness as a predictor of credit strength in emerging market firms: Panel data evidence from the manufacturing sector

Sustainable Futures

IF4.9

2026-02-03

OAAI

Sayyed Sadaqat Hussain Shah; Abrish Zaheer; Ștefan Cristian Gherghina

Exploring the Effects of Green Finance on Inclusive Growth: Empirical Evidence From African Countries 探索绿色金融对包容性增长的影响：来自非洲国家的实证证据

Journal of International Development

IF1.7

2026-02-01

PREAI

Djekonbe, Djimoudjiel; Brezeanu, Petre; Gherghina, Stefan Cristian; Djourabi, Mouta Mahamat

Is Human Capital the Hidden Engine Driving Financial Sector Growth? Panel Data Evidence from Developing Economies 人力资本是推动金融部门增长的隐性引擎吗？来自发展中经济体的面板数据证据

Journal of Quantitative Economics

IF0.6

2026-01-01

OAAI

Gherghina, Stefan Cristian; Sarigul, Sevgi Sumerli; Cetin, Murat; Avci, Pinar; Dogan, Mesut

A Context-Aware Representation-Learning-Based Model for Detecting Human-Written and AI-Generated Cryptocurrency Tweets Across Large Language Models 一种基于上下文感知表示学习模型的跨大语言模型检测人工撰写与AI生成加密货币推文的方法

Mathematical and Computational Applications

IF2.1

2025-11-29

OAAI

Arshed, Muhammad Asad; Gherghina, Stefan Cristian; Khalil, Iqra; Muavia, Hasnain; Saleem, Anum; Saleem, Hajran

Ripples of Global Fear: Transmission of Investor Sentiment and Financial Stress to GCC Sectoral Stock Volatility

ECONOMIES

IF2.1

2025-10-31

OAAI

Tabash, Mosab I.; Issa, Suzan Sameer; Mansour, Marwan; Hannoon, Azzam; Gherghina, Stefan Cristian

The reaction of cryptocurrencies to the approval of spot Bitcoin and Ethereum ETFs: An intraday event study 加密货币对现货比特币和以太坊ETF获批的反应：一项日内事件研究

Borsa Istanbul Review

IF7.1

2025-10-10

OAAI

Seyed Mehdian; Ștefan Cristian Gherghina; Ovidiu Stoica

Exploring connectedness among clean energy, cleantech, and climate change: empirical evidence in the wake of contemporary asymmetrical crisis 探索清洁能源、清洁技术和气候变化之间的关联性：当代非对称危机背景下的实证证据

Mitigation and Adaptation Strategies for Global Change

IF2.7

2025-08-05

PREAI

Daniel Ștefan Armeanu; Ștefan Cristian Gherghina; Jean Vasile Andrei; Camelia Cătălina Joldeș

Examining herding behavior in the cryptocurrency market 检查加密货币市场中的羊群行为

EQUILIBRIUM-QUARTERLY JOURNAL OF ECONOMICS AND ECONOMIC POLICY

IF6.2

2024-09-27

OAAI

Gherghina, Stefan-Cristian; Constantinescu, Cristina-Andreea

The Impact of COVID-19 Pandemic on Sustainable Development Goals

SUSTAINABILITY

IF3.3

2024-06-25

OAAI

Gherghina, Stefan Cristian; Simionescu, Liliana Nicoleta

Intraday financial markets' response to US bank failures

FINANCE RESEARCH LETTERS

IF6.9

2024-02-01

PREAI

Mehdian, Seyed; Gherghina, Stefan Cristian; Stoica, Ovidiu

Spillover Connectedness Between Cryptocurrency and Energy Sector: An Empirical Investigation Under Asymmetric Exogenous Shocks of Health and Geopolitical Crisis and Uncertainties

JOURNAL OF THE KNOWLEDGE ECONOMY

IF4

2024-01-27

PREAI

Gherghina, Stefan Cristian; Armeanu, Daniel Stefan; Andrei, Jean Vasile; Joldes, Camelia Catalina

AI-Based on Machine Learning Methods for Urban Real Estate Prediction: A Systematic Survey

ARCHIVES OF COMPUTATIONAL METHODS IN ENGINEERING

IF12.1

2023-10-27

PREAI

Tekouabou, Stephane C. K.; Gherghina, Stefan Cristian; Kameni, Eric Desire; Filali, Youssef; Gartoumi, Khalil Idrissi

The reaction of the financial market to the January 6 United States Capitol attack: An intraday study

FINANCE RESEARCH LETTERS

IF6.9

2023-09-01

PREAI

Stephens, John; Mehdian, Seyed; Gherghina, Stefan Cristian; Stoica, Ovidiu

Exploring the asymmetric effect of COVID-19 pandemic news on the cryptocurrency market: evidence from nonlinear autoregressive distributed lag approach and frequency domain causality

FINANCIAL INNOVATION

IF7.2

2023-01-13

OAAI

Gherghina, Stefan Cristian; Simionescu, Liliana Nicoleta

Multifrequency-based non-linear approach to analyzing implied volatility transmission across global financial markets

OECONOMIA COPERNICANA

IF10.8

2022-09-25

OAAI

Boateng, Ebenezer; Asafo-Adjei, Emmanuel; Gatsi, John Gartchie; Gherghina, Stefan Cristian; Simionescu, Liliana Nicoleta

Evidence from the nonlinear autoregressive distributed lag model on the asymmetric influence of the first wave of the COVID-19 pandemic on energy markets

ENERGY & ENVIRONMENT

IF4.8

2022-03-21

OAAI

Armeanu, Daniel Stefan; Gherghina, Stefan Cristian; Andrei, Jean Vasile; Joldes, Camelia Catalina

研究方向