Saturday, December 17, 2022

My IFORS Distinguished Lecture and the Fabulous CLAIO 2022 Conference in Buenos Aires, Argentina

I am back from Buenos Aires, where I had the great honor of giving the IFORS Distinguished Lecture (IDL) at the CLAIO 2022 Conference, which took place in beautiful Buenos Aires, Argentina from December 12-15.

Professor Emilio Carrizosa of the University of Seville in Spain was very kind in sending me the photo below from the beginning of my lecture, which was on December 13.

The venue for the conference was the stunning Infinity Building at the University of Buenos Aires with lovely atriums. I was amazed at the different countries that the conferees came from.

I would like to thank Professor Javier Marenco for all the courtesies extended to me and for all the logistics and arrangements. Thanks also to Manuela Blaum. The conference website can be accessed here.

My IDL entitled: "Human Migration Networks: How Operations Research Can Assist with Refugees and Supply Chain Network Labor Shortages,"  I dedicated to essential workers, who did so much for us during the pandemic, and to those fighting for their freedom including those in Ukraine. 


As the daughter of WWII refugees from Ukraine, I am very passionate about developing rigorous frameworks that can assist policy-makers in decision-making associated with human migration flows.

In my lecture, I emphasized the importance of multidisciplinary perspectives for addressing issues associated with human migration across national boundaries due to climate change, conflicts, violence and wars, as well as poverty and the desire of certain migrants to attain greater economic opportunities and prosperity.  I have been developing mathematical models of human migration networks since 1989 and, with a greater intensity in the pandemic,  have been working with collaborators through the Virtual Center for Supernetworks that I  founded in 2001 and continue to direct. 

Between 11 March 2020, when the WHO declared COVID-19 a pandemic, and February 22, 2021, nearly 105,000 movement restrictions were implemented around the world, according to the International Organization for Migration. Many of the migrants take dangerous routes and multiple modes of transportation, some of which are hazardous. The models that I described include various policy interventions  by governments. I noted  that the proper allocation of quantifiable subsidies by governments can lead to a societal optimum. I also spoke about multiple refugee crises now on the planet including the largest since WWII - that of the refugees fleeing the war in Ukraine.

My slide deck can be accessed by clicking on the link.

I am grateful to amazing collaborators with whom research on human migration networks continues - including Professor Patrizia Daniele and Giorgia Cappello of the University of Catania in Italy, Professor Ladimer S. Nagurney of the University of Hartford, as well as new collaborators, Professor Fabio Raciti, also of the University of Catania. and Professor Mauro Passacantando of the University of Milan-Bicocca. The latter two became collaborators after the wonderful ODS conference in Florence!


In addition, I  discussed models that integrate supply chain networks with labor and human migration in order to gain insights as to the potential benefits of companies' investments in attracting international labor. The models allow for different wages to be paid for various supply chain activities including production, transportation, storage, and last mile deliveries. In addition, the models permit distinct wages for domestic versus international migrant labor and also include the impacts of honesty in informing international migrants of their wages or not. Capacities on domestic labor are included to capture existing shortages in different sectors. The case study consists of one of the most expensive food products - that of truffles. The numerical results show that governments need to make sure that workers are paid the wages that they deserve.  Governments also need to make sure that international migrants are paid the same wages as domestic workers as emphasized by UN Sustainable Development Goals.  I highlighted other recent research, which establishes that companies can improve upon their profits by paying workers what they deserve to be paid. I argued for a holistic approach to supply chains and one that must include the most important resource - that of labor.


In my excitement, I mentioned my new book, "Labor and Supply Chain Networks," which will be published next month by Springer.

I was presented with an award plaque with clock, a certificate, as well as an honorarium.

I was delighted to meet faculty and students from Mexico, a colleague from Ecuador and even a friend - Professor Raghu of the University of Maryland was at CLAIO 2022!


It was an especially exciting time to be in Buenos Aires since on Tuesday, shortly after my Distinguished Lecture, Argentina beat Croatia to advance to the final match in the World Cup. 

It was extraordinary that I personally was able to have wonderful conversations with conferees from: Argentina, Brazil, Denmark, Ecuador, France, Germany, Mexico, Scotland, and the US!

It is truly special to be an Operations Researcher with colleagues around the globe having significant positive impact on addressing so many societal and economic problems.

The list of previous IFORS Distinguished Lecturers is available here. I am amazed at how many I actually know and I cite quite a few, including the Nobel laureate John Nash since we do a lot of game theory models for supply chains.

I would like to also express my appreciation to the Argentinians for their warmth and hospitality and the great food at the cafes and bakeries. I was even let into a lovely museum with a garden for free!

My flights on Delta, including the 10 hour ones to Buenos Aires from Atlanta and back were comfortable and on time!

I leave you with some additional photos taken while in Buenos Aires.

And tomorrow is the final match of the 2022 World Cup with Argentina versus France!

Saturday, December 3, 2022

Looking Forward to Delivering My IFORS Distinguished Lecture in Buenos Aires!

I was deeply honored to have been selected an IFORS (International Federation of Operational Research Societies) Distinguished Lecturer.

I will deliver my Distinguished Lecture at CLAIO, which will take place in Buenos Aires, Argentina, December 12-15, 2022. Information on the conference can be accessed here.

The IFORS Distinguished Lecture program started in 1999 and the full list of previous lecturers can be found here. I find it quite remarkable that I have had the pleasure of meeting quite a few Operations Research scholars on this list!

It was such a delight to receive the letter below from IFORS.

The title of my lecture is, "Human Migration Networks: How Operations Research Can Assist with Refugees and Supply Chain Labor Shortages."

I published my first paper on human migration networks, amazingly, in 1989, and the research has continued, with many wonderful co-authors. During the COVID-19 pandemic, our research on human migration networks intensified, because of the additional challenges and also increasing refugee flows as well as labor shortages in many economic sectors around the globe. Even now we are working on another human migration network paper that focuses on coalitions and social welfare.

I have very much enjoyed working on my lecture. It is dedicated to essential workers who have sustained us in the COVID-19 pandemic with acknowledgment of all the freedom-loving people on the planet including those fighting for their freedom in Ukraine. 

Some of the papers that I will be highlighting in my lecture are: a paper published in the Journal of Global Optimization, co-authored with Professors Patrizia Daniele and Ladimer S. Nagurney, on refugee networks, and the paper that I wrote and which was published in Operations Research Perspectives, which integrates human migration networks with labor in supply chain networks.

I will also highlight research that we published in the IFORS journal, International Transactions in Operational Research, on policy interventions for bringing human migration population distributions in line with system optimization.

I very much appreciate that IFORS posted the statement below on Russia's war against Ukraine on its homepage.

Coincidentally, the last time that I was in Buenos Aires, which was in June 2010 for the ALIO-INFORMS Conference, the World Cup was taking place and I blogged the experience. And, now, the World Cup is again taking place, but in the month of December, and in Qatar, and I will be back in Buenos Aires! I leave you with several photos that I took in Buenos Aires.

And congratulations to Argentina for making it to the quarterfinals of the World Cup today!