

Dr Konstantinos Kallias
Biography
Konstantinos is a Senior Lecturer and the Director of the PhD program in the School of Accounting, Economics and Finance at the University of Portsmouth.
Konstantinos was awarded his PhD from the University of Sussex. Additionally, he holds the degrees of Master of Business Administration (MBA) from the University of Miami and MSc in Accounting and Finance from the London School of Economics.
His research has been published in highly impactful academic journals such as Journal of Corporate Finance, British Journal of Management, Journal of Accounting and Public Policy, and Journal of Business Research, among others. Konstantinos’ research has received media coverage and is featured on Harvard Law School Forum on Corporate Governance. His work on the business–politics interface has been spotlighted by the OpenSecrets organization for its policy relevance.
As a principal investigator, Konstantinos has attracted funding from the British Academy and the Leverhulme Trust.
Prior to entering academia, Konstantinos was employed as an analyst in the financial sector having evaluated a pipeline of energy and real-estate investments across Europe.
Research interests
Initial public offerings, political connections, intangible assets valuation, financial reporting and choices of disclosure.
Research outputs
2025
Friendships to perish and friendships to cherish: corporate political tactic and earnings management method
Kallias, A., Kallias, K., Liu, J., Malikov, K., Zhang, S.
11 Jun 2025, In: British Journal of Management, 21p.
Research output: Article
2023
One size does not fit all: the conditional role of CEO education on IPO performance
Kallias, A., Kallias, K., Tsalkamas, I., Zhang, S.
1 Mar 2023, In: Journal of Business Research. 157, 14p., 113560
Research output: Article
2022
Can we trust the accounting discretion of firms with political money contributions? Evidence from U.S. IPOs
Kallias, A., Kallias, K., Zhang, S.
1 Dec 2022, In: Journal of Accounting and Public Policy. 41, 6, 26p., 106999
Research output: Article
Bank switching of US small businesses: new methods and evidence
Zhang, S., Han, L., Kallias, K., Kallias, A.
4 Jan 2022, In: Review of Quantitative Finance and Accounting, 44p.
Research output: Article
2021
The value of in-person banking: evidence from U.S. small businesses
Zhang, S., Han, L., Kallias, K., Kallias, A.
1 Nov 2021, In: Review of Quantitative Finance and Accounting. 57, 4, p. 1393-1435, 43p.
Research output: Article
Why local banking market concentration hinders IPOs and how it can work to issuers’ advantage
Kallias, A., Kallias, K., Lu, G., Zhang, S.
13 Feb 2021, In: Finance Research Letters, 101966
Research output: Article