User profiles for Apostolos G. Katsafados

Apostolos G. Katsafados

Athens University of Economics and Business//Bank of Greece
Verified email at aueb.gr
Cited by 81

Using textual analysis to identify merger participants: Evidence from the US banking industry

AG Katsafados, I Androutsopoulos, I Chalkidis… - Finance Research …, 2021 - Elsevier
In this paper, we use the sentiment of annual reports to gauge the likelihood of a bank to
participate in a merger transaction. We conduct our analysis on a sample of annual reports of …

Twitter sentiment and stock market: a COVID-19 analysis

AG Katsafados, S Nikoloutsopoulos… - Journal of Economic …, 2023 - emerald.com
Purpose Using textual analysis the authors study the relationship between social media
sentiments and stock markets during the COVID-19 pandemic. Design/methodology/approach …

Textual information and IPO underpricing: A machine learning approach

AG Katsafados, GN Leledakis… - The Journal of …, 2023 - jfds.pm-research.com
This study examines the predictive power of textual information from S-1 filings in explaining
initial public offering (IPO) underpricing. The authors’ approach differs from previous …

Bank Deposit Flows and Textual Sentiment: When an ECB President's speech is not just a speech

D Anastasiou, AG Katsafados - Available at SSRN 3833184, 2021 - papers.ssrn.com
We investigate whether the textual sentiment affects European depositors’ behavior to
withdraw their deposits. Following Loughran and McDonald (2011) methodology, we construct …

Machine learning in bank merger prediction: A text-based approach

AG Katsafados, GN Leledakis, EG Pyrgiotakis… - European Journal of …, 2024 - Elsevier
This paper investigates the role of textual information in a US bank merger prediction task.
Our intuition behind this approach is that text could reduce bank opacity and allow us to …

Credit risk modelling within the euro area in the COVID‐19 period: Evidence from an ICAS framework

G Chortareas, AG Katsafados… - … Journal of Finance & …, 2024 - Wiley Online Library
This paper develops a logistic regression model in an in‐house credit assessment system (ICAS)
framework for predicting corporate defaults in the Greek economy. We consider the …

Searching the proper term weights: A lexicon specialized in IPOs

AG Katsafados - Available at SSRN 4593108, 2022 - papers.ssrn.com
The objective of this study is to introduce new term-weighting schemes and to investigate
whether these schemes outperform the existing ones in IPO tasks. Specifically, various textual …

Short-term prediction of bank deposit flows: do textual features matter?

A Katsafados, D Anastasiou - 2022 - mpra.ub.uni-muenchen.de
The purpose of this study is twofold. First, to construct short-term prediction models for bank
deposit flows in the Euro area peripheral countries, employing machine learning techniques. …

EDGAR-CORPUS: Billions of tokens make the world go round

L Loukas, M Fergadiotis, I Androutsopoulos… - arXiv preprint arXiv …, 2021 - arxiv.org
We release EDGAR-CORPUS, a novel corpus comprising annual reports from all the publicly
traded companies in the US spanning a period of more than 25 years. To the best of our …

Crisis sentiment and banks' stock price crash risk: A missing piece of the puzzle?

C Tzomakas, D Anastasiou, A Katsafados… - Journal of International …, 2023 - Elsevier
This study empirically examines whether the stock price crash risk of euro area banks is
affected by crisis sentiment during the period 2004–2020. We introduce a diverse set of crisis …