Forschungsseminar


Seminar Series

Wednesday Faculty Research Seminar



Organizers
Anastasiia Zbandut, Omar Martin Fieles-Ahmad

Time and Room
Time: Wednesdays, 1 pm s.t. - 2 pm
(exceptions will be noted below)
Location: Digital (Zoom)

Further information
Anastasiia Zbandut (anastasiia.zbandut@ovgu.de)
Tel.:+49 (0)391 67 52302
Omar Martin Fieles-Ahmad (omar.fieles-ahmad@ovgu.de)
Tel.: +49 (0)391 / 67-58954




Date Speaker/Author Title
We. 13/04/22
1:00 pm
Digital (Zoom)
available
We. 20/04/22
1:00 pm
Digital (Zoom)
available
We. 11/05/22
1:00 pm
Digital (Zoom)
available
We. 18/05/22
1:00 pm
Digital (Zoom)
available
We. 15/06/22
1:00 pm
Digital (Zoom)
Lucas Weber (FWW-Operations Management) Modular Capacitated Sales Force Deployment Problem

The sales force deployment problem is a planning problem that arises in many selling organisations. We are interested in simultaneously solving four interrelated sub-problems: sizing of the sales force, locating the sales representatives, sales territory alignment, and resource allocation. The (scarce) resource in this case is the selling time sales representatives allocate to customers within their sales territories. We extend an existing approach by introducing locational capacities to allow more than one employee to be responsible for a sales territory. Our approach comprises a semi-infinite mixed integer linear program with an infinite number of decision variables each related to a point of selling time in a continuous time interval. Therefore, we develop a branch-and-price algorithm that solves the linear relaxations in each node of a branch-and-bound tree via column generation. To evaluate our approach, we apply our model to artificially generated sales areas. The next steps include applying the model to real sales data and to further extend the model to improve the fairness in terms of expected sales per sales representative.

We. 06/07/22
1:00 pm
Digital (Zoom)
Omar Martin Fieles-Ahmad (FWW- Angewandte Wirtschaftsforschung) Western TV, German Re-unification and Crimes against Foreigners in East Germany

In the early 1990s, re-unified Germany experienced mass immigration, particularly of refugees from disintegrating Yugoslavia, and a massive increase in anti-foreigner crimes, particularly in certain East German regions. The reasons for this regional variation are still unclear. Using county-level data from the early 1990s, we explore whether the regional pattern of anti-foreigner crimes in East Germany can be explained by differences between regions in their ability to receive western TV prior to the fall of the Berlin Wall. Our results show that counties with no access to Western TV exhibit higher violent crime rates against foreigners.



Idee und Umsetzung: Prof. Dr. Abdolkarim Sadrieh und Dipl.-Kfm. Harald Wypior | © 2022

Letzte Änderung: 24.07.2019 - Ansprechpartner: Webmaster