Pictures

Presenting a paper at the Annual Conference of the Mannheim Centre for Competition and Innovation (MaCCI), Mannheim, Germany, 2023.

Presenting a paper at the Dialogues in Competition Law and Economics workshop that took place at the University of Piraeus, Greece, on July 1st, 2024 

Presenting a paper in the European Workshop on Economic Theory (EWET), at Warsaw School of Economics, Poland, 2022.

Presenting a paper in the Department of Economics at Sultan Qaboos University, Muscat, Oman, 2021.


A photo with the faculty of the Department of Economics at Sultan Qaboos University, Muscat, Oman, 2021.

A lecture to MBA students at Sultan Qaboos University, Muscat, Oman, 2021.


After the seminar and lecture were over. As a token of appreciation, I am being offered a gift from the Dean of the Business School, Dr. Almukhtar Saif Al-Abri. Dr. Ahmad Nisar is standing on my right. Sultan Qaboos University, Muscat, Oman, 2021.

With my former Ph.D. students Prof. Suting Hong (far left) and Prof. Minghua Chen (far right) and Prof. Ji Wu (standing on my left), in Shanghai, China, during my visit to ShanghaiTech University in 2019, invited by Prof. Suting Hong.

A visit to Fitzwilliam College, Cambridge University, during my stay in the UK  as a Fulbright US Scholar, 2019. Invited by Prof. Christos Genakos, who is standing next to me. 

Fulbright Intercountry Lecturing Award: A lecture to undergraduate students at the Democritus University of Thrace, Greece, 2019. The Chair of the Department of Economics, Prof. Konstantinos Hazakis, is on my right and Prof. George Geronikolaou on my left.

Fulbright Intercountry Lecturing Award: A lecture to undergraduate students at the Democritus University of Thrace, Greece, 2019.


Visiting the Athens University of Economics and Business in the summer of 2017 funded by the Greek Diaspora Fellowship Program, Stavros Niarchos Foundation. With my co-author Prof. Chrysovalantou Milliou.

The 2016 International Industrial Organization Conference (IIOC) was held at the LeBow Business College, Drexel University.

I am receiving an appreciation gift, from the president of the Industrial Organization Society (IOS) Prof. Marc Rysman, for being the chair of the local organizing committee.

During the conference dinner, 2016 IIOC.

After my seminar at the Southwestern University of Finance and Economics in Chengdu, China, in 2013, with some of the faculty of the Economics Department, invited by my former Ph.D. student Prof. Minghua Chen (standing on my left).

After Prof. Timothy Mathews' Ph.D. thesis defense in 2002 at Stony Brook University. The committee members: (from the left) Prof. John Hause, Prof. Thomas Jeitschko, Prof. Timothy Mathews, Prof. Yair Tauman, myself and Prof. Thomas Muench.