December 19, 2025

The article, A Multitiered Framework for Competitive Flexible Production Value Networks under Environmental Regulations, by Gabriella Colajanni, Patrizia Daniele, Anna Nagurney, Daniele Sciacca, has been published in the European Journal of Operational Research and is available open access.

December 18, 2025

To celebrate the 2025 achievements of the Center Director and the Center Associates, the 2025 Congratulations and Kudos page was added to the site.

December 13, 2025

Photos from the UMass Amherst INFORMS Student Chapter End of Semester Party were added to Photos of Center Activities.

December 11, 2025

The Fall 2025 Issue of the Supernetwork Sentinel was added to the site.

December 8, 2025

The article, A Multitiered Framework for Competitive Flexible Production Value Networks under Environmental Regulations, by Gabriella Colajanni, Patrizia Daniele, Anna Nagurney, Daniele Sciacca, has been accepted for publication in the European Journal of Operational Research.

December 3, 2025

The Letters-to-the-Editor and Media pages were updated.

November 24, 2025

Professor Anna Nagurney has been named a Fellow of the Operational Research Society (UK).

November 16, 2025

The article, Ad Valorem Tariffs in Global Supply Chain Networks and Impacts on Labor, by Anna Nagurney and Samirasadat Samadi, has been accepted for publication in the Journal of the Operational Research Society.

November 4, 2025

Photos from the INFORMS Awards Ceremony at the 2025 Annual Meeting were added to Photos of Center Activities.

November 1, 2025

The video of Professor Anna Nagurney being awarded the INFORMS President's Award at the 2025 INFORMS Annual Meeting was added to Audio/Video.

Photos from the Chapter Awards Ceremony and MEAB meeting at the 2025 INFORMS Annual Meeting were added to Photos of Center Activities.

October 20, 2025

Slidedecks for presentations at the 2025 INFORMS Annual Meeting have been added to Visuals.

Photos of Center Activities page has been updated.

The Ukrainian Analytical Digest (UAD) was added to Journals.

The article, Rebuilding the Crossroads of Ukraine: Bridging the Gap Between Damage, Recovery and European Aspirations, by Oleh Nivievskyi, Dmytro Goriunov, and Anna Nagurney was published in the Ukrainian Analytical Digest.

October 11, 2025

A photo from the UMass Amherst INFORMS Student Chapter 2025 INFORMS Annual Meeting Tune-Up was added to Photos of Center Activities.

October 3, 2025

Professor Anna Nagurney will be honored with 2025 INFORMS President’s Award to be presented at the 2025 INFORMS Annual Meeting in Atlanta. For more details, see the Press Releases in Media.

September 28, 2025

The article, A Spatial Price Network Equilibrium Paradox, by Anna Nagurney, Ladimer S. Nagurney, and Ismael Pour, has been published in Optimization Letters. A preprint is available.

September 20, 2025

Photos from the seminar by Professor Oleh Nivievskyi of the Kyiv School of Economics were added to Photos of Center Activities.

September 11, 2025

We welcome to UMass Amherst, Sarvagya Jha, a new Operations Management PhD student at the Isenberg School of Management. See Photos of Center Activities.

September 7, 2025

New photos were added to Photos of Center Activities.

August 30, 2025

The article, A Spatial Price Network Equilibrium Paradox, by Anna Nagurney, Ladimer S. Nagurney, and Ismael Pour, has been accepted for publication in Optimization Letters.

August 23, 2025

Photos from the Second International Virtual Conference on Ukraine were added to Photos of Center Activities.

August 21, 2025

Presentations for the Second International Virtual Conference on Ukraine were added to Visuals.,

August 20, 2025

UMass News Release on Professor Anna Nagurney Co-Organizing a Virtual Conference Featuring Three Nobel Laureates to Map Ukraine’s Post-War Recovery

August 16, 2025

Photos from the UMass Amherst INFORMS Student Chapter Awards Ceremony were added to Photos of Center Activities.

August 5, 2025

The Media page was updated.

August 1, 2025

Professor Anna Nagurney was a panelist for The Democracy Forum panel, Supply chain vulnerabilities and the need for diversification, on July 29, 2025. A link was also added to Audiovideo page.

The Downloadable Articles and Conferences pages were updated.

July 24, 2025

The Media page has been updated to include the announcement of the 2025 fellowship recipients from the Shevchenko Emergency Fund. Professor Anna Nagurney was honored to have served as a member of the selection committee.

July 20, 2025

The Center Director and Center Associates are deeply saddened by the passing of Northwestern University Professor Hani S. Mahmassani, a superstar in transportation science and operations research. Professor Anna Nagurney wrote a reflection on him on her blog. We extend our heartfelt sympathy to his family, colleagues, and friends.

July 15, 2025

The Conferences page was updated.

July 6, 2025

Photos from the EURO 2025 in Leeds, UK were added to Photos of Center Activities.

June 14, 2025

The Spring 2025 Issue of the Supernetwork Sentinel was added to the site.

June 8, 2025

Professor Anna Nagurney has been listed as a Highly Ranked Scholar for 2024 by ScholarGPS. Details in Media.

The article, Multicommodity Fresh Produce Trade Networks with Quality Deterioration Under Congestion and Transportation Capacities, by Deniz Besik and Anna Nagurney, has been published in the Journal of Global Optimization and is available Open Access.

May 31, 2025

Photos from the visit of Dr. Kostyantyn Kyrychenko, Vice Rector for International Cooperation at the Kyiv School of Economics (KSE), were added to Photos of Center Activities.

May 23, 2025

The article, Multicommodity Fresh Produce Trade Networks with Quality Deterioration Under Congestion and Transportation Capacities, by Professors Deniz Besik and Anna Nagurney, has been accepted for publication in the Journal of Global Optimization.

May 17, 2025

Photos of Center Activities have been updated.

May 16, 2025

Photos from the 2025 POMS Conference were added to Photos of Center Activities.

May 12, 2025

Photos from the UMass Amherst OIM Awards reception were added to Photos of Center Activities.

Professor Anna Nagurney's WBUR interview, From vinegar to vanilla: Trump tariffs leave Massachusetts small businesses in the lurch, was added to Audio/Video.

A link to the Isenberg School article, Isenberg Supply Chain Expert Nagurney Talks Tariff Impact with National, Regional Media, was added to the Media page

May 3, 2025

Photos from the UMass Amherst INFORMS Student Chapter End of Semester Party were added to Photos of Center Activities.

May 1, 2025

Photos from the UMass Amherst Founders Day were added to Photos of Center Activities.

April 30, 2025

Professor Anna Nagurney's article, NetwORks and policies: OR to the rescue, based upon her Blackett Lecture, has been published in the Journal of the Operational Research Society and is available Open Access.

April 28, 2025

Slidedecks for the presentations by the Center Associates at the 35th Annual POMS Meeting in Atlanta, GA, May 8-12, 2025, have been added to Visuals.

Photos from the UMass Amherst INFORMS Student Chapter Seminar by Professor Marta Vicarelli were added to Photos of Center Activities.

April 14, 2025

The article, NetwORks and Policies: OR to the Rescue, by Anna Nagurney, based on her Blackett Lecture, has been accepted for publication in the Journal of the Operational Research Society.

April 13, 2025

The article, Integrated Crop and Cargo War Risk Insurance: Application to Ukraine, by Anna Nagurney, Ismael Pour, and Borys Kormych, has been accepted for publication in the International Transactions in Operational Research.

April 8, 2025

The article, Multicommodity Trade, Tariffs, and Rerouting, by Anna Nagurney and Samirasadat Samadi, has been accepted for publication in: Convex and Variational Analysis with Applications: In Honor of Terry Rockafellar’s 90th Birthday, Panos M. Pardalos and Themistocles M. Rassias, Editors, Springer Nature Switzerland AG.

April 5, 2025

The Media page was updated.

the Audio/Video page was updated.

March 29, 2025

On Friday, March 28, 2025, Professor Anna Nagurney delivered the LoDI seminar, Agricultural Supply Chain Networks: Labor, Trade, Policies and Resiliance, at the University of Louisville. Photos from the seminar are on Photos of Center Activities.

March 18, 2025

Professor Anna Nagurney is quoted in the OR/MS Today article, The Story Behind the “Subject to” (s.t.) Podcast: Celebrating 100 Episodes.

March 16, 2025

The Conferences page was updated.

March 12, 2025

The book, Dynamics of Disasters — From Natural Phenomena to Human Activity, edited by Ilias S. Kotsireas, Anna Nagurney, Panos M. Pardalos, Stefan Wolfgang Pickl, and Chrysafis Vogiatzis, was featured in the Inbound Logistics 2025 Winter Reading Guide.

The Media page was updated.

March 8, 2025

The Photos of Center Activities page was updated.

March 5, 2025

An article on Professor Anna Nagurney's Blackett Leture was published in the March 2025 IFORS Newsletter.

March 3, 2025

Professor Anna Nagurney was interviewed for the Business West article, UMass Economist Says New Tariffs Could Balloon Inflation.

The Photos of Center Activities page was updated.

February 25, 2025

Professor Anna Nagurney presentation in the EURO 2024 WISDOM Panel on Networking is reported in the December 2024 WISDOM Newsletter.

February 21, 2025

Professor Anna Nagurney is quoted in the Springfield Republican/Masslive article by Jim Kinney, ‘People are getting tired’ Ukrainians in Western Mass continue relief efforts, skeptical of new talks with Putin’s Russia.

February 16, 2025

The Media page was updated.

Professor Anna Nagurney was interviewed by Oscar Margain on NBC-10 Boston for the segment China Shipments.

February 4, 2025

Professor Anna Nagurney is interviewed on WHDH TV Boston for UMass economist weighs in on local impact of possible tariffs.

Professor Anna Nagurney is interviewed for the Daily Hampshire Gazette article, Tariffs on pause as experts call idea ‘unsettling’

January 31, 2025

We wish everyone a great beginning of the Spring Semester.

The article, A Multiperiod, Multicommodity, Capacitated International Agricultural Trade Network Equilibrium Model with Applications to Ukraine in Wartime, by Dana Hassani, Anna Nagurney, Oleg Nivievskyi, and Pavlo Martyshev, has been published in Transportation Science.

January 21, 2025

We regret to announce that Professor Marguerite Straus Frank, the co-developer of the Frank-Wolfe algorithm, passed away on December 11, 2024 at age 97. An In Memoriam article by Professors Immanuel M. Bomze and Anna Nagurney has been published in the EURO Journal on Computational Optimization.

January 16, 2025

The media page was updated.

January 11, 2025

Anna Nagurney is quoted in the Marketplace article, I've Always Wondered ... Do blood donation centers sell your blood?

January 10, 2025

The Call-for-Papers for the Second International Virtual Conference on Ukraine, hosted by the Jönköping International Business School, Sweden, on August 22-23, 2025 has been issued.

January 3, 2025

To celebrate the achievements of the Center Director and the Center Associates, the 2024 Congratulations and Kudos page was added to the site.

We are pleased to announce the publication of the volume, Dynamics of Disasters - From Natural Phenomena to Human Activity, edited by Professors Illias S. Kotsireas, Anna Nagurney, Panos M. Pardalos, Stefan Wolfgang Pickl, and Chrysafis Vogiatzis.

Announcements and Notes 2020-2024

Announcements and Notes 2016-2019

Announcements and Notes 2012-2015

Announcements and Notes 2009-2011

Announcements and Notes 2006-2008