Die Discussion Paper Series der Wirtschaftswissenschaften an der JGU wurde am 1. Januar 2010 begonnen. Auf dieser Seite finden Sie die letzten 20 Dokumente in umgekehrter chronologischer Reihenfolge.
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- von Erik Sarrazin (Johannes Gutenberg University, Germany)Creativity and teamwork are essential in today’s rapidly evolving labor market, yet little is known about how incentives shape creative group processes across multiple creativity dimensions, specifically quantity, quality, and originality. I introduce a novel verbal creative coordination task to incentivize and objectively measure these dimensions of creativity and to generate insights into the full creative group process. Thereby, this paper investigates how idea generation, evaluation, and selection can be effectively incentivized in Groups and which incentive scheme maximizes innovation—ideas that are both high in Quality and originality. In a laboratory experiment with 640 participants, groups are randomly assigned to […]
- von André Hessenius (Johannes-Gutenberg University, Germany),
Christian Manz (Johannes-Gutenberg University, Germany),
Stefan Irnich (Johannes-Gutenberg University, Germany)We present a new solution approach to the single-picker routing problem with scattered storage (SPRP-SS) for order picking in warehouses. Heßler and Irnich (INFORMS J. on Comp. 36(6):1417–1435, 2024) demonstrated how to construct an extension to Ratliff and Rosenthal’s state space to incorporate the scattered storage dimension. Based on this extended state space, we propose a new formulation that makes two types of decisions: selection of pick positions and determination of the tour that visits the chosen pick positions. This novel formulation is an ideal starting point for a Benders decomposition. For this approach, a fast convergence is crucial. To […]
- von Stefan Irnich (Johannes-Gutenberg University, Germany),
Laura Lüke (Johannes-Gutenberg University, Germany)This paper investigates the b-block single picker routing problem with scattered storage (b-SPRP-SS). For a parallel-aisle warehouse comprising b blocks, the b-SPRP-SS asks for the determination of a picker tour that minimizes travel distance while collecting all articles from a given pick list. Scattered storage, where articles can be stored at multiple locations, substantially increases the problem’s complexity by coupling the selection of collection points with routing decisions. Existing research on the b-SPRP-SS has predominantly focused on single-block and two-block warehouse layouts. To address this gap, we propose a novel formulation for warehouses with more than two blocks. The formulation […]
- von Carolin Hasse (Johannes-Gutenberg University, Germany),
Stefan Irnich (Johannes-Gutenberg University, Germany)The vehicle routing problem with load-dependent cost is an extension of the classical capacitated vehicle routing problem in which the cost of traveling along an arc is dependent on the load carried by the vehicle. For the benefit of generalization, this work considers the vehicle routing problem with simultaneous delivery and pickup, time windows, and load-dependent cost (VRPSDPTW-LDC). We utilize both continuous and discontinuous monotonically non-decreasing load-dependent cost functions. These cost structures are justified by real-life applications: First and foremost, transportation cost rises in load due to increasing fuel cost. In addition, cost functions may also show discontinuities due to […]
- von Wanda Schleder (Johannes-Gutenberg University, Germany)This paper examines the effectiveness of a factorial intervention aimed at improving emotional skills done at the Johannes Gutenberg University Mainz in the winter-semester 2023/2024. The four intervention components, mindfulness, emotional regulation, self-acceptance, and resource activation, were evaluated with respect to their impact on emotional skills and other well-being outcomes. Due to a high dropout rate, no definitive conclusions can be drawn about the optimal composition of training components. However, resource activation shows a significantly positive effect on stress and a depression-related score. The findings also indicate that the Big Five personality traits play a crucial role in determining outcome […]
- von Salvatore Barbaro (Johannes-Gutenberg University, Germany),
Anna-Sophie Kurella (Leibniz University, Hannover, Germany)Dichotomous preferences are a widely assumed feature in social choice theory. Despite their prominence in theoretical models, the empirical validity of this assumption has remained largely unexplored. Nor is it always clear how dichotomous preferences are defined across different research contexts. This paper introduces two new concepts that weaken the strict dichotomy assumption and can each be tested empirically. Using CSES data and three experimental datasets—two from French presidential elections and one from a regional election in Austria—we examine how frequently the different forms of dichotomous preferences occur. In addition, the paper provides evidence on the relationship between ranking and […]
- von Katharina Hartinger (Johannes-Gutenberg University, Germany),
Erik Sarrazin (Johannes-Gutenberg University, Germany),
David J. Streich (Catholic University Eichstätt-Ingolstadt)Digitalization in banking is leaving elderly clients at risk of losing access to financial services, but little is known about technology adoption at an advanced age. Using data from more than 27,000 elderly clients of a large German savings bank, we evaluate the inclusiveness and effectiveness of training interventions to foster internet banking adoption: We document selection into training and attrition along the multi-stage adoption process. Randomizing 333 responding clients into different types of training (self-guided versus social learning), we find that the share of clients who use internet banking increases by 26 percentage points after training relative to a […]
- von Laura Lüke (Johannes-Gutenberg University, Germany)We present two picker routing problems in a warehouse split into multiple disjoint zones with a picker assigned to each zone. Scattered storage is applied, meaning an article can be stored at several pick positions in one or more zones, and capacity restrictions limit the number of collected articles for each picker. Both problems seek picker tours that collect all requested articles, with each tour operating within one zone. While the multi-zone picker routing problem (MZPRP) minimizes the total length of all picker tours, the balanced multi-zone picker routing problem (BMZPRP) balances the tour lengths by minimizing the length of […]
- No. 2504: Premium Programs for Energy Conservation: Evidence from a Randomized Controlled Experimentvon Andreas Gerster (Johannes-Gutenberg University, Germany), Manuel Frondel (RWI – Leibniz-Institut für Wirtschaftsforschung, Germany), Kathrin Kaestner (RWI – Leibniz-Institut für Wirtschaftsforschung, Germany), Michael Pahle (Potsdam Institute for Climate Impact Research, Germany), Puja Singhal (Potsdam Institute for Climate Impact Research, Germany)Premium programs are seen as a politically attractive substitute for Pigouvian taxes to establish incentives for energy conservation, particularly when energy prices are high. Using an incentive-compatible survey experiment with almost 4,500 participants, this paper analyzes consumers’ uptake of a savings premium paid when a household reaches a pre-defined energy conservation target. We find that the financial benefit of a savings premium motivates only 11 percent of households to opt for it. 42 percent of households never take part, irrespective of generous premium payments of up to 1,500 euros. The remaining households prefer the conditional payment under the premium program […]
- von Salvatore Barbaro (Johannes-Gutenberg University, Germany),
Reyn van Ewijk (Johannes-Gutenberg University, Germany),
Julia M. Rode (Deutsche Bundesbank, Germany)The COVID-19 pandemic presented governments with unprecedented challenges, requiring decisions that balanced public health measures against substantial social and economic impacts. This study examines the strategic and opportunistic behaviors of regional officials in Germany during the pandemic. Using a comprehensive empirical analysis based on hundreds of statements from state incumbents, we shed light on the dynamics of state level political behavior.
- von Laura Lüke (Johannes-Gutenberg University, Germany),
André Hessenius (Johannes-Gutenberg University, Germany),
Stefan Irnich (Johannes-Gutenberg University, Germany)We present a new approach of solving the single picker routing problem with scattered storage (SPRP-SS), which is a fundamental problem in modern warehouse operations management. The SPRP-SS assumes that SKUs of articles are stored at possibly many locations. An effective integer programming based approach relies on extending the state space of Ratliff and Rosenthal’s dynamic program for the basic single picker routing problem to accommodate the SPRP-SS. As a result, the mixed integer linear programming (MIP) formulation has a quadratic number of variables. We propose two modifications of the extended state space to retain the linearity of the models. […]
- von Salvatore Barbaro (Johannes-Gutenberg University, Germany),
Anna-Sophie Kurella (University of Mannheim, Germany)The Condorcet paradox has been a significant focus of investigation since Kenneth Arrow rediscovered its importance for economic theory. Recent research on this phenomenon has oscillated between simulation studies, probability calculations based on hypothetical voter preferences, and empirical analyses often limited by unsatisfactory data. This paper presents the first comprehensive evaluation of 253 electoral polls conducted across 59 countries. Our findings demonstrate that the Condorcet paradox has virtually no empirical relevance: with only one exception, we find no evidence of cyclical majorities in any of the 253 elections. This result remains robust after statistical inference testing. Furthermore, this study provides […]
