Results 41 to 50 of about 443 (153)

Adaptive market hypothesis and momentum effect: Evidence from Dhaka Stock Exchange

Cogent Economics & Finance, 2019
This paper examines time-varying behavior of momentum and contrarian profits to identify the existence of adaptive market hypothesis (AMH), and whether AMH can provide justification for the presence of such anomalous behavior in the Dhaka Stock Exchange (
Tahmina Akhter, Othman Yong
doaj   +1 more source

Complexity and Heterogeneity in Cryptocurrency Prices: An Analysis Based on Gaussian Mixture Model and Consensus Clustering

Intelligent Systems in Accounting, Finance and Management, Volume 32, Issue 4, December 2025.
ABSTRACT This study investigates the daily price patterns and behavioral similarities among cryptocurrencies, focusing on two key research questions: (1) Do cryptocurrency prices vary consistently throughout the day? (2) Can cryptocurrencies be meaningfully grouped based on their behavioral patterns? Using Gaussian mixture models (GMMs), we analyze the
Tâmara Leal, Pedro Campos, Carlos Alves
wiley   +1 more source

PENGUJIAN EFEK HARI DALAM SEMINGGU TERHADAP RETURN SAHAM PERUSAHAAN SEKTOR INDUSTRI PERBANKAN DI BURSA EFEK INDONESIA [PDF]

Jurnal Vokasi Indonesia, 2019
Menurut Konsep Efficient Market Hypothesis (EMH), dalam pasar modal yang efisien, harga-harga sekuritasnya merefleksikan seluruh informasi yang tersedia.
Dede Suryanto
doaj   +1 more source

Investors' attention and the paradox of technologically related diversification: Evidence of stock market mispricing

Strategic Management Journal, Volume 46, Issue 10, Page 2432-2466, October 2025.
Abstract Research Summary We show that multi‐business firms pursuing technologically related diversification often face a paradox. While such strategies can yield superior financial performance through technological synergies, investors with limited attention tend to undervalue them due to their complexity.
Raffaele Morandi Stagni, Juan Santaló
wiley   +1 more source

How Does the Stock Market React to the Carbon Policy? The Chinese Experience During 2014–2022

Asia &the Pacific Policy Studies, Volume 12, Issue 3, September 2025.
ABSTRACT As countries around the world move towards carbon neutrality, firms are facing new challenges of policy uncertainty. China is an interesting place to explore this, as it is the largest carbon emitter and is taking strong steps towards carbon neutrality after the Paris Agreement.
Sarula Bai, Cheol‐Won Yang
wiley   +1 more source

Social Media, Traditional News and Stock Returns: A Causal Mediation Analysis

Intelligent Systems in Accounting, Finance and Management, Volume 32, Issue 3, September 2025.
ABSTRACT Increasing computing power and access to the internet have amplified the role of social media and online news media on financial market outcomes. However, these two sources of information are intertwined in such a way that information flows between them.
Kingstone Nyakurukwa, Yudhvir Seetharam
wiley   +1 more source

Smiles or tears? How emojis power a semistrong efficient market of bitcoin: A comprehensive analysis of decision tree models

Financial Innovation
This study examines the influence of emojis, recognized as a distinct form of communication, on the efficient market hypothesis (EMH) within the Bitcoin market over a 12-year period.
Fang Wang, Adriana F. Gabor, Marko Gacesa, Ernesto Damiani   +3 more
doaj   +1 more source

Market efficiency assessment for multiple exchanges of cryptocurrencies [PDF]

REGE Revista de Gestão
Purpose – This study aims to analyze the efficient market hypothesis (EMH) of cryptocurrencies on multiple platforms by observing whether there is a discrepancy in the levels of efficiency between different exchanges.
Orlando Telles Souza, João Vinícius França Carvalho   +1 more
doaj   +1 more source

Decision‐Making in M&A Under Market Mispricing: The Role of Deep Learning Models

Managerial and Decision Economics, Volume 46, Issue 6, Page 3352-3374, September 2025.
ABSTRACT In the ever‐evolving landscape of financial markets, mergers and acquisitions (M&A) play a pivotal role in shaping the corporate ecosystem. However, the presence of market mispricing, driven by various factors such as information asymmetry, behavioral biases, and external shocks, has been a persistent challenge for investors and corporations ...
Yuxuan Tang
wiley   +1 more source

Examining the Financial Impact of Biodiversity‐Related Reputational Disasters

Corporate Social Responsibility and Environmental Management, Volume 32, Issue 4, Page 4500-4522, July 2025.
ABSTRACT This research investigates the reaction of financial markets to biodiversity‐related corporate events, utilising an EGARCH model to assess the implications on stock returns and volatility. Results reveal that markets significantly respond to these events, demonstrating heightened sensitivity and volatility that underscore the financial ...
Erdinc Akyildirim, Shaen Corbet
wiley   +1 more source