Explanipedia

Effectiveness of domain stabilization: A broader perspective Open

Geul Lee, Jing Chen, Doojin Ryu · 2025

Jeonse-as-a-sukuk: Why is Korea a hidden champion of Islamic finance? Open

Hyoung‐Goo Kang, Mehmet Hüseyin Bilgin, Koeung Park, Doojin Ryu · 2025

How well do machine learning models in finance work? Open

Yeonchan Kang, Doojin Ryu, Robert I. Webb · 2025

We examine how machine learning models predict stock returns in the Korean market. By analyzing various firm characteristics and macroeconomic variables, we find that tree-based models outperform other machine learning approaches. This fin…

Price Discrimination, Two‐Part Tariff, and Hold‐Up Open

Daehong Min, Doojin Ryu · 2025

This study examines the impact of price discrimination on the investment decisions of downstream firms in an intermediate good market. The setting consists of two downstream firms with different marginal costs—one lower than the other—and …

Bitcoin as a financial asset: a survey Open

Dong‐Ho Kang, Doojin Ryu, Robert I. Webb · 2025

Since its introduction as a decentralized digital currency for peer-to-peer transactions, Bitcoin’s role in financial markets has undergone significant evolution. We employ bibliometric analysis to explore research trends in Bitcoin, ident…

Digital Trade and Financial Development in European Transition Economies Open

Hyun‐Jung Nam, Jonathan A. Batten, Doojin Ryu · 2025

Advancements in high‐speed Internet and mobile technology in the 2000s accelerated global digital trade growth. However, financial development in European transition economies remains low, and its connection to digital trade remains largel…

Sentiment Exposure and Corporate Innovation Investment Open

Karam Kim, Jonathan A. Batten, Doojin Ryu · 2025

Collaboration Dynamics in Legislative Co-Sponsorship Networks: Evidence from Korea Open

S Kim, Doojin Ryu, Chang Geun Song · 2025

We examine the factors shaping the formation of dynamic legislative co-sponsorship networks using unique data from the 20th Korean National Assembly. By employing dynamic probit, Poisson regression, and log-linear models, we explore the dr…

A wolf in green clothing? The intersection of green finance and money laundering Open

Nguyen-Quynh-Nhu Ngo, Ha Pham, Chune Young Chung, Doojin Ryu · 2025

Does Market Sentiment Influence Corporate Innovation Investment? Open

Jonathan A. Batten, Karam Kim, Doojin Ryu · 2025

Investor disagreement and short-squeeze risk Open

Hyeon-Jun Kim, Doojin Ryu · 2025

Heterogeneous agent-based model, artificial stock market, and secondary priority rules Open

Xinhui Yang, Jing Chen, Doojin Ryu, Jie Zhang · 2025

To Hide or not to Hide: Industry Distress, Information Asymmetry, and Stock Price Crash Risk Open

Chune Young Chung, Chang Liu, Doojin Ryu, Kainan Wang · 2025

From risk to resilience: Roles of exchange rate risk in ESG activities Open

Gia Han Doan, Fariba Gholami, Chune Young Chung, Doojin Ryu · 2025

Does risk aversion predict the future real economy? Open

Jinhwan Kim, Hoon Cho, Doojin Ryu · 2025

Green finance reform and relationship lending: Evidence from China Open

Hyoung‐Goo Kang, Doojin Ryu, Xiaoying Wu · 2025

Price discrimination, two-part tariff, and hold-up Open

Dong-Joon Min, Doojin Ryu · 2025

Does local corruption influence corporate risk-taking? Evidence from Vietnam's Anti-corruption campaigns Open

Nha Duc Bui, Do Thi Thanh Nhan, Chune Young Chung, Doojin Ryu · 2025

DisCorrGAN: A Disentangled and Correlation-Aware Generative Adversarial Networks for Multivariate Financial Time Series Generation Open

Doojin Ryu, Young Hoon Choi, Seungeun Ock, June‐Ho Byun, Jae Wook Song · 2025

Risk-Neutral Option Pricing Via Generative Adversarial Network Open

Young Hoon Choi, Doojin Ryu, June‐Ho Byun, Yosep Na, Jae Wook Song · 2025

Do GPs Truly Present Fair Value? The Case of Continuation Funds Open

Jun-Mo Jo, Doojin Ryu · 2025

Investor-induced contagion after crypto exchange cyberattacks: Wealth effect or portfolio rebalancing Open

Dung Thi Pham, Chune Young Chung, Doojin Ryu · 2025

Does a higher hashrate strengthen Bitcoin network security? Open

Daehan Kim, Doojin Ryu, Robert I. Webb · 2024

In the blockchain world, proof-of-work is the dominant protocol mechanism that determines the consensus of the ledger. The hashrate, a measure of the computational power directed toward securing a blockchain through proof-of-work consensus…

ESG activities and financial stability: The case of Korean financial firms Open

Seo Yun Choi, Doojin Ryu, Wonhee You · 2024

This study explores the relationship between financial firms' environmental, social, and governance (ESG) activities and their financial stability measured by Altman's Z-score. Based on a dataset of listed financial institutions in Korea, …

Evolving roles of energy futures markets: A survey Open

A. Kim, Doojin Ryu, Robert I. Webb · 2024

Energy markets are important in global trade and economic stability, and energy futures play a critical role in energy market dynamics. This study reviews: i) the important role energy futures market prices play as reliable forecasts of fu…

Linear extrapolation and model-free option implied moments Open

Geul Lee, Doojin Ryu · 2024

This study proposes an approach for assessing the effectiveness of linear extrapolation (LE) for the implied moment estimators even in cases in which the true values of implied moments are unknown. To this end, we develop truncation sensit…

Bitcoin as a Legal Tender Open

Daehan Kim, Maggie Chen, Doojin Ryu, Robert I. Webb · 2024

Household saving behaviors among newlyweds based on housing types Open

Hojoong Bae, Mehmet Hüseyin Bilgin, Doojin Ryu, Eunmo Yang · 2024

How do options contract sizes affect investor composition and market liquidity? Open

Seongkyu Gilbert Park, Doojin Ryu · 2024

Jeonse-as-a-Sukuk: Why is Korea a hidden champion of Islamic Finance? Open

Hyoung‐Goo Kang, Mehmet Hüseyin Bilgin, Doojin Ryu · 2024

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