My PhD Students Had a Great Year So We Celebrated

One of the great pleasures of being at a research university is working with PhD students and also celebrating their accomplishments. Yesterday, we celebrated some of the accomplishments of my Isenberg School of Management Operations Management PhD students over this past year with a delicious lunch at The Commonwealth Restaurant at the University of Massachusetts Amherst.

Highlights of an excellent academic year have included:

• Dana Hassani receiving the 2026 Isenberg School Outstanding Doctoral Student Teacher Award;
• Ismael Pour successfully teaching a full course, for the first time, and publishing the co-authored paper, "Integrated crop and cargo war risk insurance: application to Ukraine," co-authored with Professor Borys Kormych of Ukraine, and me, in the International Transactions in Operational Research: https://onlinelibrary.wiley.com/doi/10.1111/itor.70038
• Samira Samadi publishing the paper, "Fresh produce spatial price equilibrium on general networks: Capturing commodity quality deterioration through endogenous transportation time delay functions with capacities," with Professor Deniz Besik and me in the European Journal of Operational Research: https://www.sciencedirect.com/science/article/pii/S0377221726003759 and also the paper with me, "Ad valorem tariffs in global supply chain networks and impacts on labor," in the Journal of the Operational Research Society: https://www.tandfonline.com/doi/full/10.1080/01605682.2025.2592758. In addition, Samira successfully taught a full course for the first time plus she served as the President of the UMass Amherst INFORMS Student Chapter!

These PhD students were also very active in presenting their research at conferences of the professional societies: INFORMS, POMS, and DSI. And, Sarvagya Jha had a terrific first year as a PhD student and recently submitted his first paper to a journal. We shared the five exquisite desserts in the photo below.

Wishing all PhD students and their faculty a fabulous and productive summer with great, impactful research.

Slide Decks of Our Talks at INFORMS in Atlanta Are Now Posted on Topics from War Risk Insurance to Tariffs and Rerouting to Remembering the Great Hani Mahmassani

My immediate research group had five presentations at the recent INFORMS Conference, which took place in Atlanta, October 26-29, 2025.

I am delighted that the slide decks of all the above presentations have now been posted on the Virtual Center for Supernetworks website: https://supernet.isenberg.umass.edu/visuals.html.

Below is a photo of the speakers and the organizers (thanks to Himadri Sen Gupta and Andrés González for the invitation) of the Resilient Networks session in which Ismael Pour, my PhD student, presented our paper on integrated crop and cargo war risk insurance with applications to Ukraine. This paper we co-authored with Borys Kormych of the Odesa Law Academy and it was published in the International Transactions in Operational Research and is available free access: https://onlinelibrary.wiley.com/doi/10.1111/itor.70038?af=R

My PhD student, Samira Samadi, presented two papers (since I had to speak on a panel memorializing Hani Mahmassani, who passed away on July 15, 2025).

Samira's first paper presentation, which was on fresh produce quality deterioration under transportation congestion and disruptions, was on work we did with Deniz Besik of the University of Richmond. Her second paper, which we co-authored, was on tariffs and rerouting, and is in press in a volume in honor of Terry Rockafellar's 90th birthday: https://link.springer.com/book/9783032078599.

Dana Hassani delivered a paper of ours in the 8AM session on the last day of the conference. The paper, with Oleg Nivievskyi and Pavlo Martyshev of the Kyiv School of Economics (KSE), was published in an edited Dynamics of Disasters volume by Springer last December: https://www.springerprofessional.de/en/quantification-of-international-trade-network-performance-under-/50390576

I will blog about the panel in honor of Hani Mahmassani in a separate post but below I share a photo of the entire group that took part. Thanks to Karen Smilowitz and to the Transportation Science and Logistics (TSL) Society of INFORMS for allowing us to memorialize Hani in a session originally scheduled for the Robert Herman Lifetime Achievement Award recipient, who could not make it (Cynthia Barnhart of MIT was recognized this year). Hani was an earlier recipient of this award.

 

Looking Forward to the 2025 INFORMS Conference in Atlanta!

All five presentations are now done! The 2025 INFORMS  conference will definitely be a whirlwind conference. It will take place October 26 -29, 2025. I am so looking forward to the talks, the social events, serendipitous encounters, the exhibits, and the various business meetings and special luncheons.

Detailed information on the conference is available here:https://meetings.informs.org/wordpress/annual/

Three of my PhD students will be coming - Ismael Pour, Samira Samadi, and Dana Hassani. 

Ismael will present our latest paper on integrated crop and cargo war risk insurance, co-authored with Borys Kormych of the Odesa Law Academy, which was recently published in the January 2026 issue of the International Transaction in Operational Research, and is available free access: 

https://onlinelibrary.wiley.com/doi/10.1111/itor.70038?af=R. 

I will speak on the panel in honor of Hani Mahmassani, who passed away on July 15, 2025. The panel is chaired by Karen Smilowitz, the Editor of Transportation Science and fellow panelists are: Srinivas Peeta, Michael Hyland, and Marco Nie. The panel will be a moving tribute to a leading scholar, educator, mentor, and friend, who is deeply missed.

Samira will present two of our papers (because my schedule is loaded with many meetings and conference events) - a paper, co-authored with Deniz Besik of the University of Richmond on a continuing passion of ours - impact on fresh produce quality of various supply chain disruptions - and the  paper, "Multicommodity Trade, Tariffs, and Rerouting," that is forthcoming in a very special edited volume: Convex and Variational Analysis with Applications: In Honor of Terry Rockafellar’s 90th Birthday, with Themistocles M. Rassias and Panos M. Pardalos as Editors, Springer Nature Switzerland AG; see: https://link.springer.com/book/9783032078599

Dana will present a paper of ours that was also recently published: "Quantification of International Trade Network Performance Under Disruptions to Supply, Transportation, and Demand Capacity, and Exchange Rates in Disasters." This paper was co-authored with colleagues at the Kyiv School of Economics (KSE): Oleg Nivievskyi and Pavlo Martyshev and appears in: Dynamics of Disasters- From Natural Phenomena to Human Activity, Ilias S. Kotsireas, Anna Nagurney, Panos M. Pardalos, Stephan Pickl, Chrysafis Vogiatzis, Editors, Springer Nature Switzerland AG; see:https://link.springer.com/book/10.1007/978-3-031-74006-0#toc

And on the first evening of the conference, I will receive the INFORMS President's Award, for which I am deeply grateful and very honored:  https://www.informs.org/News-Room/INFORMS-Releases/Awards-Releases/Anna-Nagurney-Honored-with-2025-INFORMS-President-s-Award

The 2nd Virtual Conference on Ukraine was OUTSTANDING!

I'd like to thank KTH The Royal Institute of Technology in Stockholm, Sweden, for hosting our 2nd Virtual Conference on Ukraine August 22 and 23, 2025. It was truly outstanding. It was an intellectual feast with 3 Nobel Laureates in Economic Sciences: Daron Acemoglu, Roger Myerson, and Paul Krugman delivering keynotes along with Yuriy Gorodnichenko and Subal Kumbhakar. 

I was honored to also give a keynote (the first one) and have posted my presentation as well as that of my Isenberg School of Management, UMass Amherst PhD student Ismael M. Pour on the Supernetwork Center website: https://lnkd.in/gncCNfTK.

I would like to thank the President of KTH Royal Institute of Technology Anders Söderholm for his warm welcoming remarks as well as fellow members of the Organizing Committee: Lars Harvigson, Almas Heshmati, Hans Lööf, Paul Nystedt, Roman Sheremeta and Hans Westlund. I am grateful to all the presenters of papers as well as to the panelists who joined me in discussing: Challenges of Ukraine's Post-War Reconstruction. Thanks also to those who joined us from many different countries and engaged with us. The networks that we are building in support of Ukraine in terms of research, higher education, and policy-making are inspiring.

So many fascinating research questions are  percolating from this conference. The full program can be downloaded here: https://www.kth.se/ukraine-conference.

Thanks to UMass Amherst for issuing this nice press release: https://www.umass.edu/news/article/anna-nagurney-co-organizes-virtual-conference-featuring-three-nobel-laureates-map

Tomorrow we mark Ukraine's Independence Day in commemoration of the Declaration of Independence of 1991. Slava Ukraini.

Working with Colleagues in Ukraine Is Inspiring

Since Russia's full-scale invasion of Ukraine on February 24, 2022, I have been deeply involved in supporting higher education there. I had already been quite active, due to my affiliation with the Kyiv School of Economics (KSE) as both a member of its Board of Directors (BOD) and its International Academic Board over several years, but, in March, 2022, my connections intensified since I was elected one of the four Co-Chairs of the BOD of KSE https://kse.ua/community/stories/board-of-directors/.  Shortly thereafter, my university - UMass Amherst - established a global partnership with KSE. The partnership included both a student exchange student program (very successful) as well as a Virtual Scholar in Residence Program to reduce brain drain from Ukraine. We have now had two sets of cohorts of Virtual Scholars and I have enjoyed working with several of the scholars.

My colleagues in Ukraine inspire me and I believe that the research that we have done together is strengthened through our collaborations.

I am honored and delighted that Professor Myroslava Kushnir from the Ukrainian Catholic University (UCU) in Lviv and I have had our latest paper accepted for presentation at the Information Technology in Disaster Risk Reduction Conference at Kyoto University https://itdrr.org/conference/itdrr2025/. Our paper, "Social Network Analysis of Civilian Support Networks for the Ukrainian Military," emphasizes that Russia’s war on Ukraine is not only a geopolitical conflict but also a humanitarian, ecological, social and economic disaster. Our study applies Social Network Analysis (SNA) to explore the interaction structure between civil society organizations (CSOs) and military units in Ukraine during the ongoing full-scale war. Dr. Kushnir has been a Virtual Scholar in both cohorts. Our first joint paper, "Civilian-Military Integration in Ukrainian Defense Supply Chain," co-authored with Renata Konrad of Worcester Polytechnic Institute, was published in the Proceedings of the International ISCRAM Conference: https://ojs.iscram.org/index.php/Proceedings/article/view/49

And just a few days ago, at the great EURO Conference in Leeds, UK, I presented a paper co-authored with my Isenberg School of Management PhD student, Ismael Pour, and Professor Borys Kormych of the Odesa Law Academy. The paper, "Integrated Crop and Cargo War Risk Insurance: Application to Ukraine," was recently published in the International Transactions in Operational Research (ITOR): https://onlinelibrary.wiley.com/doi/abs/10.1111/itor.70038 Professor Kormych had also been a Virtual Scholar in the two cohorts. 

And, with Virtual Scholar Pavlo Martyshev and Professor Oleg Nivievskyi of KSE, we have published 4 papers, along with my Isenberg School of Management PhD student Dana Hassani. I am very proud of this work. The papers that have appeared in journals are: 

"A Multiperiod Multicommodity Capacitated International Agricultural Trade Network Equilibrium Model with Applications to Ukraine in Wartime," Dana Hassani, Anna Nagurney, Oleg Nivievskyi, and Pavlo Martyshev, Transportation Science 59(1): (2025), pp 143-164,

"Multicommodity International Agricultural Trade Network Equilibrium: Competition for Limited Production and Transportation Capacity Under Disaster Scenarios with Implications for Food Security,"Anna Nagurney, Dana Hassani, Oleg Nivievskyi, and Pavlo Martyshev, European Journal of Operational Research 314(1): (2024), pp 1127-1142,

"Exchange Rates and Multicommodity International Trade: Insights from Spatial Price Equilibrium Modeling with Policy Instruments via Variational Inequalities," Anna Nagurney, Dana Hassani, Oleg Nivievskyi, and Pavlo Martyshev, Journal of Global Optimization 87: (2023), pp 1-30.

Plus, we have the following paper: "Quantification of International Trade Network Performance Under Disruptions to Supply, Transportation, and Demand Capacity, and Exchange Rates in Disasters,"Anna Nagurney, Dana Hassani, Oleg Nivievskyi, and Pavlo Martyshev, published in Dynamics of Disasters - From Natural Phenomena to Human Activity, I.S. Kotsireas, A. Nagurney, P.M. Pardalos, S. Pickl, C. Vogiatzis, Editors, Springer Nature Switzerland AG (2024), pp 151-179.

Dana Hassani has received 4 research awards (2 from the OIM Department and 2 from the Isenberg School) for his publications. These are significant recognitions.

I have written additional article with Professor Nivievskyi and am extremely proud of the paper, "Ukraine - Addressing the Domestic Crisis and the Effects of the War on Global Food Systems," which was published by the Pontifical Academy of Sciences: https://www.pas.va/en/publications/scripta-varia/sv154pas/nivievskyi.html

I have also worked with Professor Elena Besedina of KSE. She was a Virtual Scholar in the first cohort. The paper that we co-authored is: "A Multicommodity Spatial Price Equilibrium Model with Exchange Rates and Non-Tariff Measures for Agri-Food International Trade," Anna Nagurney and Elena Besedina, Operations Research Forum 4: (2023), 84.

My colleagues and collaborators in Ukraine have dealt with drones and missiles and losses of family members and friends and much too much time in shelters. They continue to teach and to conduct research under very challenging conditions. What they do to support their students and knowledge discovery in wartime is heroic. I thank them from the bottom of my heart and look forward to peace and prosperity for Ukraine and its freedom-loving citizenry.

Making an Impact - All Set with 3 Talks for the EURO Conference in Leeds, UK!

In a few days, I head to the UK. I am very excited about the EURO conference at the University of Leeds https://euro2025leeds.uk/, at which I will have 3 invited presentations. My talks are all prepared. This conference marks 50 years of the professional society of EURO, so it will be a very celebratory conference.

The Making an Impact stream, which is the practitioners' stream at the EURO conferences, is always a favorite of mine. I'm thrilled that, at this conference, I'll present on: Tariffs, Trade, and OR: Impacts on Producers, Consumers, and Labor in the Making an Impact: 'OR in Action Lightning Talks' session. Thanks to Ruth Kaufman for organizing this session, which will be the first one of the conference. I last saw Ruth at my Blackett Lecture, which I delivered at The Royal Society in London on December 5, 2024. 

And, in the session immediately following, I'll deliver the presentation, "Integrated Crop and Cargo War Risk Insurance: Application to Ukraine," which is based on a paper I co-authored with my Isenberg School of Management, UMass Amherst PhD student Ismael M. Pour and Professor Borys Kormych of Odesa. The paper was recently published in the International Journal of Operational Research: https://lnkd.in/ewmXR8kU. 

Many thanks also to Professors Gerhard-Wilhelm Weber and Roberto Rossi for inviting me to speak in the session: Celebrating 50 Years of EURO on "Reflections on Wonderful OR Experiences at EURO Conferences Over 20 Years." In that presentation slide deck I have many photos of conferees at EURO conferences in Reykjavik, Poznan, Dublin, and other locations.  I am very much looking forward to the outstanding scientific presentations and social gatherings and to building new memories.