{"id":11531,"date":"2025-04-01T11:50:53","date_gmt":"2025-04-01T09:50:53","guid":{"rendered":"https:\/\/cms.zdv.uni-mainz.de\/fb03-wiwi\/?page_id=11531"},"modified":"2025-04-01T17:26:32","modified_gmt":"2025-04-01T15:26:32","slug":"dp","status":"publish","type":"page","link":"https:\/\/wiwi.uni-mainz.de\/en\/dp\/","title":{"rendered":"Discussion Paper Series"},"content":{"rendered":"<jgu-base-pageheader react-props=\"{\n    &quot;items&quot;: [\n        {\n            &quot;box&quot;: {\n                &quot;index&quot;: &quot;&quot;,\n                &quot;title&quot;: &quot;Discussion Paper Series&quot;,\n                &quot;link&quot;: {\n                    &quot;url&quot;: &quot;&quot;,\n                    &quot;title&quot;: &quot;learn more&quot;\n                }\n            },\n            &quot;color&quot;: &quot;red&quot;,\n            &quot;image&quot;: {\n                &quot;url&quot;: &quot;&quot;\n            },\n            &quot;imgCredit&quot;: &quot;&quot;,\n            &quot;useVideo&quot;: false,\n            &quot;video&quot;: false\n        }\n    ],\n    &quot;type&quot;: &quot;small&quot;,\n    &quot;useBreadcrumb&quot;: true,\n    &quot;align&quot;: &quot;full&quot;,\n    &quot;quicklinks&quot;: {\n        &quot;show&quot;: false,\n        &quot;selects&quot;: []\n    }\n}\">\n<\/jgu-base-pageheader>\n\n\n<p>The Discussion Paper Series of the JGU Business and Economics  started on 1 January 2010. On this page, you find the most recent 20 papers in reverse chronological order. <\/p>\n\n\n\n<p>If you want to submit a paper to the series, please contact the&nbsp;<a href=\"mailto:IPP-Mainz@uni-mainz.de\">IPP office<\/a>. These discussion papers are listed in RePeC. See&nbsp;<a href=\"https:\/\/www.macro.economics.uni-mainz.de\/dokumentation-discussion-papers\/#RePEc\">here<\/a>&nbsp;for a description of how this is done and how you can add them to SSRN.<\/p>\n\n\n<ul class=\"has-dates has-authors has-excerpts wp-block-rss\"><li class='wp-block-rss__item'><div class='wp-block-rss__item-title'><a href='https:\/\/download.uni-mainz.de\/RePEc\/pdf\/Discussion_Paper_2601.pdf'>No. 2601: Incentives and Creativity in Groups \u2014 Experimental Evidence on Creative Processes and Dimensions<\/a><\/div><time datetime=\"2026-01-15T01:00:01+01:00\" class=\"wp-block-rss__item-publish-date\">15. January 2026<\/time> <span class=\"wp-block-rss__item-author\">by Erik Sarrazin (Johannes Gutenberg University, Germany)<\/span><div class=\"wp-block-rss__item-excerpt\">Creativity and teamwork are essential in today\u2019s 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\u2014ideas that are both high in Quality and originality. In a laboratory experiment with 640 participants, groups are randomly assigned to [&hellip;]<\/div><\/li><li class='wp-block-rss__item'><div class='wp-block-rss__item-title'><a href='https:\/\/download.uni-mainz.de\/RePEc\/pdf\/Discussion_Paper_2511.pdf'>No. 2511: Benders Decomposition using Core-Maximal Cuts and Its Application to the Single-Picker Routing Problem with Scattered Storage<\/a><\/div><time datetime=\"2025-12-18T01:00:11+01:00\" class=\"wp-block-rss__item-publish-date\">18. December 2025<\/time> <span class=\"wp-block-rss__item-author\">by Andr\u00e9 Hessenius (Johannes-Gutenberg University, Germany),\n      Christian Manz (Johannes-Gutenberg University, Germany),\n      Stefan Irnich (Johannes-Gutenberg University, Germany)<\/span><div class=\"wp-block-rss__item-excerpt\">We present a new solution approach to the single-picker routing problem with scattered storage (SPRP-SS) for order picking in warehouses. He\u00dfler and Irnich (INFORMS J. on Comp. 36(6):1417\u20131435, 2024) demonstrated how to construct an extension to Ratliff and Rosenthal\u2019s 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 [&hellip;]<\/div><\/li><li class='wp-block-rss__item'><div class='wp-block-rss__item-title'><a href='https:\/\/download.uni-mainz.de\/RePEc\/pdf\/Discussion_Paper_2510.pdf'>No. 2510: The Single Picker Routing Problem with Scattered Storage in Parallel-Aisle Warehouse with Multiple Blocks<\/a><\/div><time datetime=\"2025-11-12T01:00:10+01:00\" class=\"wp-block-rss__item-publish-date\">12. November 2025<\/time> <span class=\"wp-block-rss__item-author\">by Stefan Irnich (Johannes-Gutenberg University, Germany),\n      Laura L\u00fcke (Johannes-Gutenberg University, Germany)<\/span><div class=\"wp-block-rss__item-excerpt\">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\u2019s 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 [&hellip;]<\/div><\/li><li class='wp-block-rss__item'><div class='wp-block-rss__item-title'><a href='https:\/\/download.uni-mainz.de\/RePEc\/pdf\/Discussion_Paper_2509.pdf'>No. 2509: Branch-Price-and-Cut for the Vehicle Routing Problem With Simultaneous Delivery and Pickup, Time Windows, and Load-Dependent Cost<\/a><\/div><time datetime=\"2025-11-06T01:00:09+01:00\" class=\"wp-block-rss__item-publish-date\">6. November 2025<\/time> <span class=\"wp-block-rss__item-author\">by Carolin Hasse (Johannes-Gutenberg University, Germany),\n      Stefan Irnich (Johannes-Gutenberg University, Germany)<\/span><div class=\"wp-block-rss__item-excerpt\">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 [&hellip;]<\/div><\/li><li class='wp-block-rss__item'><div class='wp-block-rss__item-title'><a href='https:\/\/download.uni-mainz.de\/RePEc\/pdf\/Discussion_Paper_2507.pdf'>No. 2507: Effects of a Factorial Intervention on Emotional Skills<\/a><\/div><time datetime=\"2025-10-09T00:00:07+02:00\" class=\"wp-block-rss__item-publish-date\">9. October 2025<\/time> <span class=\"wp-block-rss__item-author\">by Wanda Schleder (Johannes-Gutenberg University, Germany)<\/span><div class=\"wp-block-rss__item-excerpt\">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 [&hellip;]<\/div><\/li><li class='wp-block-rss__item'><div class='wp-block-rss__item-title'><a href='https:\/\/download.uni-mainz.de\/RePEc\/pdf\/Discussion_Paper_2506.pdf'>No. 2506: Dichotomous Preferences: Concepts, Measurement, and Evidence<\/a><\/div><time datetime=\"2025-10-02T00:00:06+02:00\" class=\"wp-block-rss__item-publish-date\">2. October 2025<\/time> <span class=\"wp-block-rss__item-author\">by Salvatore Barbaro (Johannes-Gutenberg University, Germany),\n      Anna-Sophie Kurella (Leibniz University, Hannover, Germany)<\/span><div class=\"wp-block-rss__item-excerpt\">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\u2014two from French presidential elections and one from a regional election in Austria\u2014we examine how frequently the different forms of dichotomous preferences occur. In addition, the paper provides evidence on the relationship between ranking and [&hellip;]<\/div><\/li><li class='wp-block-rss__item'><div class='wp-block-rss__item-title'><a href='https:\/\/download.uni-mainz.de\/RePEc\/pdf\/Discussion_Paper_2505.pdf'>No. 2505: Banking for Boomers \u2013 A Field Experiment on Technology Adoption in Financial Services<\/a><\/div><time datetime=\"2025-06-17T00:00:05+02:00\" class=\"wp-block-rss__item-publish-date\">17. June 2025<\/time> <span class=\"wp-block-rss__item-author\">by Katharina Hartinger (Johannes Gutenberg University, Germany),\n      Erik Sarrazin (Johannes Gutenberg University, Germany),\n      David J. Streich (Catholic University Eichst\u00e4tt-Ingolstadt)<\/span><div class=\"wp-block-rss__item-excerpt\">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 find that training take-up is low (2% initial response rate) among this group of non-adopters. Yet, training is highly effective conditional on participation: treatment completion is associated with an increase in internet banking set-up by 25 percentage points. In terms of sustainable usage, the share [&hellip;]<\/div><\/li><li class='wp-block-rss__item'><div class='wp-block-rss__item-title'><a href='https:\/\/download.uni-mainz.de\/RePEc\/pdf\/Discussion_Paper_2508.pdf'>No. 2508: Exact Solution of Picker Routing Problems in Zoned Warehouses with Scattered Storage<\/a><\/div><time datetime=\"2025-06-03T00:00:08+02:00\" class=\"wp-block-rss__item-publish-date\">3. June 2025<\/time> <span class=\"wp-block-rss__item-author\">by Laura L\u00fcke (Johannes-Gutenberg University, Germany)<\/span><div class=\"wp-block-rss__item-excerpt\">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 [&hellip;]<\/div><\/li><li class='wp-block-rss__item'><div class='wp-block-rss__item-title'><a href='https:\/\/download.uni-mainz.de\/RePEc\/pdf\/Discussion_Paper_2504.pdf'>No. 2504: Premium Programs for Energy Conservation: Evidence from a Randomized Controlled Experiment<\/a><\/div><time datetime=\"2025-03-20T01:00:04+01:00\" class=\"wp-block-rss__item-publish-date\">20. March 2025<\/time> <span class=\"wp-block-rss__item-author\">by Andreas Gerster (Johannes-Gutenberg University, Germany),\n      Manuel Frondel (RWI \u2013 Leibniz-Institut f\u00fcr Wirtschaftsforschung, Germany),\n      Kathrin Kaestner (RWI \u2013 Leibniz-Institut f\u00fcr Wirtschaftsforschung, Germany),\n      Michael Pahle (Potsdam Institute for Climate Impact Research, Germany),\n      Puja Singhal (Potsdam Institute for Climate Impact Research, Germany)<\/span><div class=\"wp-block-rss__item-excerpt\">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\u2019 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 [&hellip;]<\/div><\/li><li class='wp-block-rss__item'><div class='wp-block-rss__item-title'><a href='https:\/\/download.uni-mainz.de\/RePEc\/pdf\/Discussion_Paper_2503.pdf'>No. 2503: Autonomy and Accountability: Strategic Behavior of German State Leaders During the COVID-19 Pandemic<\/a><\/div><time datetime=\"2025-02-13T01:00:03+01:00\" class=\"wp-block-rss__item-publish-date\">13. February 2025<\/time> <span class=\"wp-block-rss__item-author\">by Salvatore Barbaro (Johannes-Gutenberg University, Germany),\n      Reyn van Ewijk (Johannes-Gutenberg University, Germany),\n      Julia M. Rode (Deutsche Bundesbank, Germany)<\/span><div class=\"wp-block-rss__item-excerpt\">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.<\/div><\/li><li class='wp-block-rss__item'><div class='wp-block-rss__item-title'><a href='https:\/\/download.uni-mainz.de\/RePEc\/pdf\/Discussion_Paper_2602.pdf'>No. 2602: Extreme justifications fuel polarization<\/a><\/div><time datetime=\"2025-02-01T01:00:02+01:00\" class=\"wp-block-rss__item-publish-date\">1. February 2025<\/time> <span class=\"wp-block-rss__item-author\">by Christiane Buschinger (Johannes Gutenberg University, Germany),\n      Markus Eyting (Johannes Gutenberg University, Germany),\n      Florian Hett (Johannes Gutenberg University, Germany),\n      Judd Kessler (The Wharton School of the University of Pennsylvania, USA)<\/span><div class=\"wp-block-rss__item-excerpt\">How does polarization \u2014 as measured by mistreatment of political rivals \u2014 spread? In an online experiment, participants choose between splitting financial resources equally or discriminating against a supporter of the opposing political party. We vary the information subjects receive about others\u2019 choices and justifications for discrimination. Exposure to extreme justifications for discrimination increases discrimination \u2014 particularly in a polarized environment, when many others are already discriminating \u2014 and it leads participants to adopt more extreme justifications themselves. Our findings suggest a self-reinforcing dynamic that may fuel polarization: Exposure to extreme statements increases polarization and the prevalence of extreme reasoning.<\/div><\/li><li class='wp-block-rss__item'><div class='wp-block-rss__item-title'><a href='https:\/\/download.uni-mainz.de\/RePEc\/pdf\/Discussion_Paper_2502.pdf'>No. 2502: A Linear-Size Model for the Single Picker Routing Problem with Scattered Storage<\/a><\/div><time datetime=\"2025-01-14T01:00:02+01:00\" class=\"wp-block-rss__item-publish-date\">14. January 2025<\/time> <span class=\"wp-block-rss__item-author\">by Laura L\u00fcke (Johannes-Gutenberg University, Germany),\n      Andr\u00e9 Hessenius (Johannes-Gutenberg University, Germany),\n      Stefan Irnich (Johannes-Gutenberg University, Germany)<\/span><div class=\"wp-block-rss__item-excerpt\">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\u2019s 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. [&hellip;]<\/div><\/li><li class='wp-block-rss__item'><div class='wp-block-rss__item-title'><a href='https:\/\/download.uni-mainz.de\/RePEc\/pdf\/Discussion_Paper_2501.pdf'>No. 2501: On the Prevalence of Condorcet\u2019s Paradox<\/a><\/div><time datetime=\"2025-01-10T01:00:01+01:00\" class=\"wp-block-rss__item-publish-date\">10. January 2025<\/time> <span class=\"wp-block-rss__item-author\">by Salvatore Barbaro (Johannes-Gutenberg University, Germany),\n      Anna-Sophie Kurella (University of Mannheim, Germany)<\/span><div class=\"wp-block-rss__item-excerpt\">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 [&hellip;]<\/div><\/li><\/ul>    <div style=\"display: none\">\n        \n    <\/div>","protected":false},"excerpt":{"rendered":"<p>The Discussion Paper Series of the JGU Business and Economics started on 1 January 2010. On this page, you find the most recent 20 papers in reverse chronological order. If you want to submit a paper to the series, please contact the&nbsp;IPP office. These discussion papers are listed in RePeC. See&nbsp;here&nbsp;for a description of how &hellip; <a href=\"https:\/\/wiwi.uni-mainz.de\/en\/dp\/\">Continued<\/a><\/p>\n","protected":false},"author":266,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-11531","page","type-page","status-publish","hentry"],"content_raw":"<!-- wp:jgu\/pageheader {\"items\":[{\"box\":{\"index\":\"\",\"title\":\"Discussion Paper Series\",\"link\":{\"url\":\"\",\"title\":\"learn more\"}},\"color\":\"red\",\"image\":{\"url\":\"\"},\"imgCredit\":\"\",\"useVideo\":false,\"video\":false}],\"type\":\"small\",\"useBreadcrumb\":true} \/-->\n\n<!-- wp:paragraph -->\n<p>The Discussion Paper Series of the JGU Business and Economics  started on 1 January 2010. On this page, you find the most recent 20 papers in reverse chronological order. <\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>If you want to submit a paper to the series, please contact the&nbsp;<a href=\"mailto:IPP-Mainz@uni-mainz.de\">IPP office<\/a>. These discussion papers are listed in RePeC. See&nbsp;<a href=\"https:\/\/www.macro.economics.uni-mainz.de\/dokumentation-discussion-papers\/#RePEc\">here<\/a>&nbsp;for a description of how this is done and how you can add them to SSRN.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:rss {\"feedURL\":\"https:\/\/scripts.rewi.uni-mainz.de\/wiwi\/repec\/feed.php\",\"itemsToShow\":20,\"displayExcerpt\":true,\"displayAuthor\":true,\"displayDate\":true,\"excerptLength\":100} \/-->","_links":{"self":[{"href":"https:\/\/wiwi.uni-mainz.de\/en\/wp-json\/wp\/v2\/pages\/11531","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wiwi.uni-mainz.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wiwi.uni-mainz.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wiwi.uni-mainz.de\/en\/wp-json\/wp\/v2\/users\/266"}],"replies":[{"embeddable":true,"href":"https:\/\/wiwi.uni-mainz.de\/en\/wp-json\/wp\/v2\/comments?post=11531"}],"version-history":[{"count":8,"href":"https:\/\/wiwi.uni-mainz.de\/en\/wp-json\/wp\/v2\/pages\/11531\/revisions"}],"predecessor-version":[{"id":17011,"href":"https:\/\/wiwi.uni-mainz.de\/en\/wp-json\/wp\/v2\/pages\/11531\/revisions\/17011"}],"wp:attachment":[{"href":"https:\/\/wiwi.uni-mainz.de\/en\/wp-json\/wp\/v2\/media?parent=11531"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wiwi.uni-mainz.de\/en\/wp-json\/wp\/v2\/categories?post=11531"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wiwi.uni-mainz.de\/en\/wp-json\/wp\/v2\/tags?post=11531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}