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The general conclusion of climate change studies is the necessity of eliminating net CO2 emissions in general and from the electric power systems in particular by 2050. The share of renewable energy is increasing worldwide, but due to the intermittent nature of wind and solar power, a lack of system flexibility is already hampering the further integration of renewable energy in some countries. In this study, we analyze if and how combinations of carbon pricing and power-to-gas (PtG) generation in the form of green power-to-hydrogen followed by methanation (which we refer to as PtG throughout) using captured CO2 emissions can provide transitions to deep decarbonization of energy systems. To this end, we focus on the economics of deep decarbonization of the European electricity system with the help of an energy system model. In different scenario analyses, we find that a CO2 price of 160 €/t (by 2050) is on its own not sufficient to decarbonize the electricity sector, but that a CO2 price path of 125 (by 2040) up to 160 €/t (by 2050), combined with PtG technologies, can lead to an economically feasible decarbonization of the European electricity system by 2050. These results are robust to higher than anticipated PtG costs.
We study whether compulsory religious education in schools affects students' religiosity as adults. We exploit the staggered termination of compulsory religious education across German states in models with state and cohort fixed effects. Using three different datasets, we find that abolishing compulsory religious education significantly reduced religiosity of affected students in adulthood. It also reduced the religious actions of personal prayer, church-going, and church membership. Beyond religious attitudes, the reform led to more equalized gender roles, fewer marriages and children, and higher labor-market participation and earnings. The reform did not affect ethical and political values or non-religious school outcomes.
We study whether compulsory religious education in schools affects students' religiosity as adults. We exploit the staggered termination of compulsory religious education across German states in models with state and cohort fixed effects. Using three different datasets, we find that abolishing compulsory religious education significantly reduced religiosity of affected students in adulthood. It also reduced the religious actions of personal prayer, church-going, and church membership. Beyond religious attitudes, the reform led to more equalized gender roles, fewer marriages and children, and higher labor-market participation and earnings. The reform did not affect ethical and political values or non-religious school outcomes.
Die Lohnlücke zwischen Frauen und Männern (der sogenannte Gender Pay Gap) wird üblicherweise in Bevölkerungsgruppen untersucht, die ihre Bildungslaufbahn bereits abgeschlossen haben. In diesem Beitrag betrachten wir eine frühere Phase der Berufstätigkeit, indem wir den Gender Pay Gap unter Studierenden, die neben ihrem Studium arbeiten, analysieren. Anhand von Daten aus fünf Kohorten einer Studierendenbefragung in Deutschland beschreiben wir den Gender Pay Gap und diskutieren mögliche Erklärungen. Die Ergebnisse zeigen, dass Studentinnen im Durchschnitt etwa 6% weniger verdienen als Studenten. Nach Berücksichtigung verschiedener entlohnungsrelevanter Faktoren verringert sich die Lücke auf 4,1%. Einer der Hauptgründe für die Differenz in der Entlohnung sind die unterschiedlichen Beschäftigungen, die männliche und weibliche Studierende ausüben.
Early exposure makes the entrepreneur: how economics education in school influences entrepreneurship
(2022)
Many countries that seek to boost their economy share the goal of promoting entrepreneurship. Whereas there is ample research on the predictors of entrepreneurship during adulthood, we know little about how pre-adulthood experience influences entrepreneurship later in life. Using a natural experiment, this paper examines whether introducing economics classes in school enhances entrepreneurial behavior in adulthood. Our difference-in-differences approach exploits curricula reforms across German states that introduced compulsory economics education classes in secondary schools. Using information on school and labor market careers for more than 10,000 individuals from 1984 to 2019, we find that the reform increases students’ entrepreneurial activities by three percentage points. Examining gender differences, we find that economics classes equally benefit female and male students. Our results advance our understanding of how pre-adulthood experiences shape individuals’ entrepreneurial behavior.
Im Kampf gegen die Ausbreitung des Corona-Virus waren flächendeckende Schulschließungen seit Ausbruch der Pandemie eine zentrale politische Maßnahme. Infolgedessen kam es zu erheblichen Lernzeiteinbußen unter allen Schüler*innen, worunter insbesondere Kinder und Jugendliche aus benachteiligten Verhältnissen immer noch leiden. Über die Auswirkungen der Corona-Pandemie auf das deutsche Bildungssystem wird diskutiert und Maßnahmen zu deren Eindämmung aufgesetzt.
Being exposed to compulsory religious education in school can have long-run consequences for students’ lives. At different points in time since the 1970s, German states terminated compulsory religious education in public schools and replaced it by a choice between ethics classes and religious education. This article shows that the reform not only led to reduced religiosity in students’ later life, but also eroded traditional attitudes towards gender roles and increased labor-market participation and earnings.
Gender pay gaps are commonly studied in populations with already completed educational careers. We focus on an earlier stage by investigating the gender pay gap among university students working alongside their studies. With data from five cohorts of a large-scale student survey from Germany, we use regression and wage decomposition techniques to describe gender pay gaps and potential explanations. We find that female students earn about 6% less on average than male students, which reduces to 4.1% when accounting for a rich set of explanatory variables. The largest explanatory factor is the type of jobs male and female students pursue.
With the digital transformation, companies will experience a change that focuses on shaping the organization into an agile organizational form. In today's competitive and fast-moving business environment, it is necessary to react quickly to changing market conditions. Agility represents a promising option for overcoming these challenges. The path to an agile organization represents a development process that requires consideration of countless levels of the enterprise. This paper examines the impact of digital transformation on agile working practices and the benefits that can be achieved through technology. To enable a solution for today's so-called VUCA (Volatility, Uncertainty, Complexity und Ambiguity) world, agile ways of working can be applied project management requires adaptation. In the qualitative study, expert interviews were conducted and analyzed using the grounded theory method. As a result, a model can be presented that shows the influencing factors and potentials of agile management in the context of the digital transformation of medium-sized companies.
User innovators follow multiple diffusion and adoption pathways for their self-developed innovations. Users may choose to commercialize their self-developed products on the marketplace by becoming entrepreneurs. Few studies exist that focus on understanding personal and interpersonal factors that affect some user innovators’ entrepreneurial decision-making. Hence, this paper focuses on how user innovators make key decisions relating to opportunity recognition and evaluation and when opportunity evaluation leads to subsequent entrepreneurial action in the entrepreneurial process. We conducted an exploratory study using a multi-grounded theory methodology as the user entrepreneurship phenomenon embodies complex social processes. We collected data through the netnography approach that targeted 18 entrepreneurs with potentially relevant differences through crowdfunding platforms. We integrated self-determination, human capital, and social capital theory to address the phenomena under study. This study’s significant findings posit that users’ motives are dissatisfaction with existing goods, interest in innovation, altruism, social recognition, desire for independence, and economic benefits. Besides, use-related experience, product-related knowledge, product diffusion, and iterative feedback positively impact innovative users’ entrepreneurial decision-making.
Industrial practice is characterized by random events, also referred to as internal and external turbulences, which disturb the target-oriented planning and execution of production and logistics processes. Methods of probabilistic forecasting, in contrast to single value predictions, allow an estimation of the probability of various future outcomes of a random variable in the form of a probability density function instead of predicting the probability of a specific single outcome. Probabilistic forecasting methods, which are embedded into the analytics process to gain insights for the future based on historical data, therefore offer great potential for incorporating uncertainty into planning and control in industrial environments. In order to familiarize students with these potentials, a training module on the application of probabilistic forecasting methods in production and intralogistics was developed in the learning factory 'Werk150' of the ESB Business School (Reutlingen University). The theoretical introduction to the topic of analytics, probabilistic forecasting methods and the transition to the application domain of intralogistics is done based on examples from other disciplines such as weather forecasting and energy consumption forecasting. In addition, data sets of the learning factory are used to familiarize the students with the steps of the analytics process in a practice-oriented manner. After this, the students are given the task of identifying the influencing factors and required information to capture intralogistics turbulences based on defined turbulence scenarios (e.g. failure of a logistical resource) in the learning factory. Within practical production scenario runs, the students apply probabilistic forecasting using and comparing different probabilistic forecasting methods. The graduate training module allows the students to experience the potentials of using probabilistic forecasting methods to improve production and intralogistics processes in context with turbulences and to build up corresponding professional and methodological competencies.
§ 303 Schuldenkonsolidierung
(2022)
Eine zukunftsfähige Ausrichtung der betrieblichen Abläufe nach den Prinzipien des nachhaltigen Wirtschaftens erhöht die Wettbewerbsfähigkeit, die Innovationskraft und die Glaubwürdigkeit des Unternehmens bei allen Interessengruppen. Zudem zeigt die Praxis, dass Unternehmen damit nicht nur ökologische und soziale Aspekte angehen können, sondern auch ökonomisch besser aufgestellt sind, zum Beispiel durch Einsparungen an Ressourcen, einer höheren Akzeptanz im Markt und in der Gesellschaft oder einer besseren Mitarbeitermotivation. In der VDI 4070 Blatt 1 wurde eine Handlungsanleitung gegeben und eine strukturierte Vorgehensweise beschrieben, um Betriebe systematisch an ein nachhaltiges Wirtschaften heranzuführen. In Ergänzung dazu werden in Blatt 2 beispielhafte Methoden sowie bewährte und innovative Instrumente vorgestellt und praktische Anwendungshilfen und Beispiele aufgezeigt. Die Richtlinie richtet sich an Behörden, Beratungsunternehmen, kleine und mittelständische Unternehmen.
Advancements in Internet of Things (IoT), cloud and mobile computing have fostered the digital enrichment—or “digitization”—of physical products, which are gaining increasing relevance in practice. According to recent studies, global IoT spending will exceed USD 1 Trillion by 2021 and there will be over 25 billion IoT connections (KPMG, 2018). Porter and Heppelmann (2014) state that IT is “revolutionizing products [as …] IT is becoming an integral part of the product itself.” Senior business executives like GE’s former CEO Jeff Immelt (2015) are even proposing that “every industrial company in the coming age is also going to become a software and analytics company.” This reflects the increasing relevance of IT components’ (i.e., software, data analytics, cloud computing) integration into previously purely physical products. We call IT-enriched physical products, “digitized” products to differentiate them from purely intangible “digital” products, such as digital music, e-books, and software. Examples of digitized products include the Philips Hue smartphone-controllable lightbulb, Audi Connect internet-connected cars, or Rolls-Royce’s sensor-enabled pay per use jet engines.
Digitized products provide their producers with a wide range of opportunities to offer new functionality and product capabilities (e.g., autonomy) that traditional, physical products do not exhibit (Porter and Heppelmann, 2014). In addition, the digitization of products allows producers to continuously repurpose their offerings, by extending and/or changing the product functionality and, thus, enabling new value creation opportunities. Based on their re-programmability and connectivity, digitized products “remain essentially incomplete […] throughout their lifetime as users continue to add and delete […] and change […] functional capabilities” (Yoo, 2013). For instance, the Philips Hue connected lightbulb enables remote control of basic functions (e.g., switching on and off the light) as well as setting more advanced light scenes for day-to-day tasks (e.g., relax, read) via Amazon’s Alexa artificial intelligence assistant (Signify, 2019), offerings that were not intended use cases when Signify (previously known as Philips Lighting) created Hue in 2012. Thus, digitized products present limitless potentials for new functionality and unforeseen use cases, which provides them with a huge innovation capacity.
Despite the limitless potentials offered by digitized products, there has been a slow uptake of digitized products by businesses so far (Jernigan et al., 2016; Mocker et al., 2019). According to a 2016 MIT Sloan Management Review report (Jernigan et al., 2016) only 24% of the investigated firms were actively using IoT technologies – a key technology for digitized products. In a more recent research study Mocker et al. (2019) found that the median revenue share from digital offerings (i.e., solutions based on IT enriched products) in large companies only accounted for 5% of the total revenue of the investigated companies.
The slow uptake of digitized products might be explained by the challenges that firms face regarding the changing nature of digitized products. Pervasive digital technologies (such as IoT) change the nature of products by adding new functionality that was previously not part of the value proposition of the products/services (e.g., a pair of shoes embedded with sensors and connectivity allows joggers to have access to data regarding their run distance, speed, etc.) (Yoo et al., 2012). The addition of new functionality and use cases of digitized products makes it harder for producers to design and develop relevant products (Hui 2014). As described in the paper ‘Do Your Customers Actually Want a “Smart” Version of Your Product?’, “just because [firms] can make something with IoT technology doesn’t mean people will want it.” (Smith, 2017).
The shift in digitized products’ nature poses new challenges for producers along the entire product development process (Porter and Heppelmann, 2015; Yoo et al., 2012) and create a paradox in product digitization, described by Yoo et al. (2012) as the paradox of pace: while technology accelerates the rate of innovation, companies need to spend more time to digitize their products, extending time to market. The production of these digitized products also becomes more challenging, e.g., as companies need to deal with different clock-speeds of software and hardware development (Porter and Heppelman, 2015). The above-mentioned challenges suggest that producers need to better understand how they can generate value from their digitized products’ generative potentials.
The body of literature on digitized products has been growing in recent years. For instance, Herterich et al. (2016) investigate how digitized product affordances (i.e., potentials) enable industrial service innovation; Nicolescu et al. (2018) explore the emerging meanings of value associated with IoT; and Benbunan-Fich (2019) studies the impact of basic wearable sensors on the quality of the user experience. However, it remains unclear what it takes for firms to generate value with their digitized product potentials. This dissertation investigates this research gap.
Job advertisements are important means of communicating role expectations for management accountants to the labor market. They provide information about which roles of management accountants are sought by companies or which roles are expected. However, which roles are communicated in job advertisements is unknown so far. Using a large sample of 889 job ads and a text-mining approach, we show an apparent mix of different role types with a strong focus on a rather classic role: the watchdog role. However, individuals with business partner characteristics are more often sought for leadership positions or in family businesses and small and medium-sized enterprises (SMEs). The results challenge the current role discussion for management accountants as business partners in practice and some academic fields.
This research briefing describes the organizational capability of scaling at scale, which we define as enabling multiple digital innovation initiatives to realize bottom-line value from their innovation by leveraging shared resources. We illustrate this concept with a case study from global multi-energy company Repsol, which implemented scaling at scale to cultivate a portfolio of more than 450 initiatives and helped over seventy percent of initiatives to reach the scale-up stage. As a result, over five years Repsol realized €800 million of bottom-line value from digital innovations.
To generate greater value faster from digital innovation, many companies are increasing how much they learn from their own innovation efforts. However, in many companies, these changes are limited to one stakeholder group: innovation teams. Two other stakeholder groups, senior executives and experts from corporate functions, also need to learn from digital innovation initiatives. We have defined three learning imperatives that address a company’s needs to learn continually about building (1) a successful innovation, (2) a portfolio of initiatives that realizes strategic objectives faster, and (3) shared resources that propel multiple initiatives. All three imperatives involve collecting data regularly from digital innovation initiatives. In this research briefing we outline the three learning imperatives and provide examples of how companies are pursuing them to achieve strategic objectives more effectively and efficiently.
Artificial intelligence is considered to be a significant technology for driving the future evolution of smart manufacturing environments. At the same time, automated guided vehicles (AGVs) play an essential role in manufacturing systems due to their potential to improve internal logistics by increasing production flexibility. Thereby, the productivity of the entire system relies on the quality of the schedule, which can achieve production cost savings by minimizing delays and the total makespan. However, traditional scheduling algorithms often have difficulties in adapting to changing environment conditions, and the performance of a selected algorithm depends on the individual scheduling problem. Therefore, this paper aimed to analyze the scheduling problem classes of AGVs by applying design science research to develop an algorithm selection approach. The designed artifact addressed a catalogue of characteristics that used several machine learning algorithms to find the optimal solution strategy for the intended scheduling problem. The contribution of this paper is the creation of an algorithm selection method that automatically selects a scheduling algorithm, depending on the problem class and the algorithm space. In this way, production efficiency can be increased by dynamically adapting the AGV schedules. A computational study with benchmark literature instances unveiled the successful implementation of constraint programming solvers for solving JSSP and FJSSP scheduling problems and machine learning algorithms for predicting the most promising solver. The performance of the solvers strongly depended on the given problem class and the problem instance. Consequently, the overall production performance increased by selecting the algorithms per instance. A field experiment in the learning factory at Reutlingen University enabled the validation of the approach within a running production scenario.
Especially, if the potential of technical and organizational measures for ergonomic workplace design is limited, exoskeletons can be considered as innovative ergonomic aids to reduce the physical workload of workers. Recent scientific findings from ergonomic analyses with and without exoskeletons are indicating that strain reduction can be achieved, particularly at workplaces with lifting, holding, and carrying processes. Currently, a work system design method is under development incorporating criteria and characteristics for the design of work systems in which a human worker is supported by an exoskeleton. Based on the properties of common passive and active exoskeletons, factors influencing the human on which an exoskeleton can have a positive or negative effect (e.g. additional weight) were derived. The method will be validated by the conceptualization and setup of several work system demonstrators at Werk150, the factory of ESB Business School on campus of Reutlingen University, to prove the positive ergonomic effect on humans and the supporting process to choose the suitable exoskeleton. The developed method and demonstrators enable the user to experience the positive ergonomic effects of exoskeletal support in lifting, holding and carrying processes in logistics and production. The new work system design method will contribute to the fact that employees can pursue their professional activity longer without substantial injuries or can be used more flexibly at different work stations. Also new work concepts, strategies and scenarios are opened up to reduce the risk of occupational accidents and to promote the compatibility of work for employees. A training module is being developed and evaluated with participants from industry and master students to build up competence.
The early involvement of experiences gained through intelligence and data analysis is becoming increasingly important in order to develop new products, leading to a completely different conception of product creation, development and engineering processes using the advantages that the dedication of the digital twin entails. Introducing a novel stage gate process in order to be holistically anchored in learning factories adopting idea generation and idea screening in an early stage, beta testing of first prototypes, technical implementation in real production scenarios, business analysis, market evaluation, pricing, service models as well as innovative social media portals. Corresponding product modelling in the sense of sustainability, circular economy, and data analytics forecasts the product on the market both before and after market launch with the interlinking of data interpretation nearby in real-time. The digital twin represents the link between the digital model and the digital shadow. Additionally, the connection of the digital twin with the product provides constantly updated operating status and process data as well as mapping of technical properties and real-world behaviours. A future-networking product, by embedded information technology with the ability to initiate and carry out one's own further development, is able to interact with people and environments and thus is relevant to the way of life of future generations. In today's development work for this new product creation approach, on one hand, "Werk150" is the object of the development itself and on the other hand the validation environment. In the next step, new learning modules and scenarios for trainings at master level will be derived from these findings.
Ein Design Thinking-Projekt mit 17 20–50-jährigen kirchenfernen Proband*innen untersuchte die Fragestellung aus einer klaren Bedürfnisorientierung dieser für die Zukunft der Kirche wichtigen Altersgruppe. Mit ihnen wurden konkrete Lösungsvorschläge erarbeitet. Konsens der Proband*innen war, dass Kirche viel Potential hat, das sie aktuell nicht ausschöpft. Um die Kirchenbindung zu stabilisieren bzw. perspektivisch zu erhöhen, müsste Kirche im Lebensraum ihrer Mitglieder sichtbarer werden, und das vor allem digital. Zudem müsste sie ihre Angebote für das Leben der Mitglieder als relevant darstellen und aktiv mit einem offenen Ohr auf die Gemeindeglieder zugehen, statt auf ihr Kommen zu warten
Moral change and the purchase-sales-relationship: critical analysis of German and Swiss companies
(2022)
This study examines the awareness and causes of moral change from the economic perspective in Germany and Switzerland. Based on an analysis of value research to date and interviews with experts in B2B sales, the manifestations of moral change are critically examined and recommendations for action are derived on an employee-specific and company-wide level.
Eine wichtige Informationsgrundlage für strategische Entscheidungen im Sportmarketing bildet das Markenimage, da es die Perspektive der Anspruchsgruppen auf die Marke widerspiegelt. Die Analyse des Markenimages ist jedoch methodisch komplex, weshalb dafür der Einsatz Künstlicher Neuronaler Netze eingehender untersucht wird. Denn dieses Verfahren der Künstlichen Intelligenz ermöglicht die Modellierung vielschichtiger und nichtlinearer Wirkungsbeziehungen. Der konzeptionelle Ansatz wird am empirischen Praxisbeispiel des Sportartikelherstellers adidas veranschaulicht, indem ein mehrschichtiges Künstliches Neuronales Netz zwischen den Bewertungen spezifischer Markenattribute und der Gesamtmarke modelliert wird. Mithilfe einer Analyse der Verbindungsgewichte des Netzes wird der Variableneinfluss verschiedener Markenattribute gemessen, woraus sich konkrete Implikationen für die Sportmarketingpraxis ergeben.
Das regelmäßige Schmieren von Maschinen verhindert Schäden, reduziert Ausfallzeiten und vermeidet Reparaturkosten. Schmiervorgänge werden jedoch oft unzureichend dokumentiert. Für die Überwachung manueller Schmierprozesse an Maschinen wird daher eine Smart-Maintenance-Lösung aufgebaut. Zusätzlich wird eine intelligente Fettpresse als cyber-physisches System entwickelt. Dadurch lassen sich Schmiervorgänge transparent dokumentieren und Fehlschmierungen verhindern.
Process risks are omnipresent in the corporate world and repeatedly present organizations with the challenge of how to deal with these risks. Efforts in trying to analyze and prevent these risks are costly and require many resources, which do not always bring the desired added value. The goal of this work is to determine how a benefit-oriented resource allocation can be made for risk-oriented process management. For this purpose, the following research question is posed: "How can systematic prioritization decisions regarding risk-oriented process management be made?” To answer it, an evaluation procedure is developed which assesses processes based on their characteristics regarding potential risk disposition as well as entrepreneurial relevance. For this purpose, requirements for such a procedure are first collected and used to define selection criteria for it. After the detailed analysis of known selection and evaluation procedures, one of them is selected and used for further development. Next steps include the definition of relevant criteria for the evaluation of the processes by examining process characteristics regarding their suitability for process evaluation. The focus here lies on characteristics that provide indications of the risk disposition and business relevance of processes. The result of this approach is a scoring model with a criteria catalog consisting of 15 criteria according to which a process is evaluated. The evaluation result is presented both numerically and in a matrix. This enables the comparison of several processes and a derived prioritization of those for a more in-depth risk analysis. The application of this approach will ensure a benefit-oriented allocation of resources in the management of process risks and increased process reliability.
Die Liebherr Hydraulikbagger GmbH setzt sich aktiv mit der Implementierung von Risikomanagementsystemen auseinander und treibt so das risikoorientierte Prozessmanagement weiter voran. Dabei gilt es vor allem, Prozesse auf Risiko-Anfälligkeiten und ihre Relevanz für den Unternehmenserfolg zu analysieren.
For some time now, eSports has complemented the portfolio of many sponsors in sports. Though partnerships with important organizations, brands are gaining a foothold in the eSports landscape. While the communication work with media and fans in the framework of conventional sports has been tried and tested for many years, Public Relations (PR) in eSports is new for companies. The paper examines the requirements of PR in eSports. These are identified by analyzing a quantitative survey among eSports fans. The results prove the existance of significant differences in the requirements of successful PR in eSports. The differences are mainly based on the different target groups and their media usage behavoir. Classic formats such as TV or print are ignored by eSport fans. This influences the choice of media partners for sponsors. Successful PR in eSports requires patience and long-term planning. It is important to maintain a close exchange with partners in order to jointly design attractive formats for media and their consumers.
Will chatbots play a significant role for B2B marketingin the future? Chatbots in B2B businesses
(2022)
Digitalization has gained a foothold in our everyday lives. However, it remains to be seen what digital tools B2B companies can benefit from. During the last few years, chatbots have been on the rise and have played a more significant role in B2B marketing. Thus, this research follows a literature review to examine the current state of B2B chatbots. With this, the study will discover the buyer’s preferences for chatbots compared to sales agents and the role of chatbots in different stages of the B2B sales funnel.
This article aims to give an overview of what German business needs in current times. By illustrating the Made in Germany label as a perceived image in sales, specific attributes are being evaluated to explain better the challenges German businesses are currently facing: Digitization, Education, Environment, and Quality & China.
Durch die Entwicklungen der vergangenen Jahre hin zu technisch komplexeren Maschinen und Anlagen steigt die Bedeutung der Instandhaltung als wesentlichem Schlüssel zur Sicherung der Verfügbarkeit von Maschinen und Anlagen. Wesentliche Ansatzpunkte zur Verbesserung sind hier die Verfügbarkeit von Informationen, voraussagende Instandhaltungsstrategien und eine verbesserte Informationsbereitstellung. Diese können auf technischer Ebene durch spezialisierte Cyberphysische Systeme realisiert werden. In diesem Beitrag wird ein Überblick über die wesentlichen Bausteine, aus smarten Komponenten, smarten Planungssystemen und smarten Benutzerschnittstellen gegeben, die für eine erfolgreiche Umsetzung notwendig sind.
Production systems are becoming increasingly complex, which means that the main task of industrial maintenance, ensuring the technical availability of a production system, is also becoming increasingly difficult. The previous focus of maintenance efforts on individual machines must give way to a holistic view encompassing the whole production system. Against this background, the technical availability of a production system must be redefined. The aim of this publication is to present different definition approaches of production systems’ availability and to demonstrate the effects of random machine failures on the key figures considering the complexity of the production system using a discrete event simulation.
Personality matters! So lässt sich die Forschung zu Persönlichkeit und Berufserfolg des letzten Jahrhunderts zusammenfassen. Beruflicher Erfolg hängt nicht nur von den kognitiven Fähigkeiten ab, wie beispielsweise der allgemeinen Intelligenz, sondern auch von der Persönlichkeit. Das werden Führungskräfte sicher bestätigen können. Was aber macht eine Persönlichkeit aus, die beruflich sehr leistungsfähig ist? Wie wirken sich verschiedene Persönlichkeitsmerkmale darauf aus, wie gut man mit beruflichen Anforderungen zurechtkommt? Und welche Persönlichkeitsprofile eignen sich für welche Tätigkeitsfelder?
Mit diesen Fragen beschäftigt sich die Organisations- und Arbeitspsychologie seit vielen Jahren. Gewissenhaftigkeit (Conscientiousness) hat sie als einen besonders wichtigen Faktor für die berufliche Leistungsfähigkeit identifiziert. In einer Metastudie fassen Michael Wilmot und Deniz Ones die Erkenntnisse zur Gewissenhaftigkeit aus 100 Jahren Forschung zusammen – und erfassen dabei 2.500 primäre Studien mit über 1,1 Millionen befragten Personen.
Wollen Unternehmen sozial und ökologisch nachhaltiger werden, beginnt es meistens mit Ankündigungen: Wir werden mehr Mitarbeiter dazu bewegen, mit dem Fahrrad zu kommen! Wir schaffen die Currywurst in der Kantine ab! Wir werden benachteilige Jugendliche stärker fördern! Solche Ankündigungen werden in der Forschung zu Environment, Social und Governance (ESG) als „Aspirational Talk“ bezeichnet. Sie zeigen den Anspruch eines Unternehmens auf: „Wir erkennen die Herausforderungen an und wollen sie meistern.“ Den Ankündigungen sollten dann freilich Taten folgen. Was aber passiert, wenn die Mitarbeiter zwischen dem, was angekündigt wurde, und dem, was gemacht wird, eine Lücke wahrnehmen?
Der vorliegende Beitrag schlägt auf Basis der Erfahrungen in der Augenheilkunde mit der SARS-CoV-2-Pandemie in den Jahren 2020 und 2021 einen Leitfaden für den Umgang mit (zukünftigen) Pandemien vor.
Die Kernpunkte:
• Das weltweite Epidemie-Geschehen sollte stets beobachtet werden.
• Deutet sich eine Pandemie an, sollte im ersten Schritt ein Krisenstab eingerichtet werden, der die Pandemielage bewertet und Maßnahmen koordinieren kann.
• Die zu ergreifenden Maßnahmen einer augenheilkundlichen Einrichtung betreffen vor allem die Sicherstellung der Versorgungssituation sowie organisatorische und wirtschaftliche Bereiche, um eine tragfähige Fortführung des Betriebs zu ermöglichen.
Nachhaltigkeit, Digitalisierung und New Work – es gibt viele Anlässe für Organisationen, Neues zu erlernen. In der Forschung wird seit den 80er-Jahren dabei anerkannt, dass organisationales Lernen neben dem Aufbau neuen Wissens auch Verlernen bedeutet. Dabei geht es weniger darum, dass Kenntnisse schlicht überflüssig werden. Stellt eine Organisation beispielsweise auf Glasfasertechnologie um, so wird das Wissen, wie man Kupferkabel anschließt, nicht mehr benötigt und irgendwann verschwinden. Beim organisationalen Verlernen geht es eher um Glaubenssätze, Annahmen und Routinen, die das Erlernen neuen Wissens behindern. So kann die (veraltete) Annahme, Kupferkabel seien weiterhin eine brauchbare Technologie, Unternehmen daran hindern, die Glasfasertechnologie voranzutreiben und einzuführen.
The aim of this work is to establish and generalize a relationship between fractional partial differential equations (fPDEs) and stochastic differential equations (SDEs) to a wider class of stochastic processes, including fractional Brownian motions and sub-fractional Brownian motions with Hurst parameter H ∈ (1/2,1). We start by establishing the connection between a fPDE and SDE via the Feynman-Kac Theorem, which provides a stochastic representation of a general Cauchy problem. In hindsight, we extend this connection by assuming SDEs with fractional and sub-fractional Brownian motions and prove the generalized Feynman-Kac formulas under a (sub-)fractional Brownian motion. An application of the theorem demonstrates, as a by-product, the solution of a fractional integral, which has relevance in probability theory.
Ethik und Personalmanagement
(2022)
Das Personalmanagement beschäftigt sich mit der Frage, wie Mitarbeitende für Unternehmen gewonnen, dort entwickelt und motiviert werden können und wie die Arbeitsbedingungen gestaltet werden. In Theorie und Praxis des Personalmanagements werden differenzierte Teilaspekte betrachtet, wie beispielsweise Personalplanung, Personalmarketing, Beschaffung und Auswahl, Motivation und Vergütung.
Management und Führung sind Funktionen, die in Organisationen benötigt werden, um Aktivitäten und Prozesse zu koordinieren und um immer wieder Veränderungen umzusetzen. Der Beitrag stellt die Unterschiede zwischen Management und Führung dar und bettet diese in den Kontext aktueller Entwicklungen ein. Denn durch die Digitalisierung der Arbeitswelt, die Pandemie sowie die New Work-Bewegung verändert sich die Art und Weise, wie wir zusammenarbeiten. Entsprechend viel wird über Führung und Management diskutiert – auch in der Augenheilkunde. Ziel ist es, dass auf Basis der vorliegenden Überlegungen in den Einrichtungen der Augenheilkunde Management und Führung reflektiert und zielorientiert und zukunftsfähig gestaltet werden können.
Die Debatte über die Zukunft der Europäischen Wirtschafts- und Währungsunion ist seit geraumer Zeit omnipräsent (Herzog und Hengstermann 2013). Mit der temporären Aussetzung der europäischen (nationalen) Schuldenregeln bis zum 31. Dezember 2022 ging abermals eine leidenschaftlich geführte Post-Covid-19-Reformdiskussion los. Zu den bisherigen Veränderungsnotwendigkeiten kommen nunmehr die geopolitischen Herausforderungen hinzu. Ist die Stabilität der Währungsunion in Gefahr?
Mit den Aufgaben und Fallstudien des Übungsbuchs lassen sich die zentralen Kapitel und Themen des Lehrbuchs gezielt wiederholen und vertiefen. Es bietet zu jedem Werkzeug Aufgaben und Fragestellungen aus der Praxis. Zusätzlich werden komplexe Anwendungsfälle namhafter deutscher und internationaler Unternehmen wie Ernst & Young, HUGO BOSS, Alfred Kärcher und Bayer angeboten.
The time has come : application of artificial intelligence in small- and medium-sized enterprises
(2022)
Artificial intelligence (AI) is not yet widely used in small- and medium-sized industrial enterprises (SME). The reasons for this are manifold and range from not understanding use cases, not enough trained employees, to too little data. This article presents a successful design-oriented case study at a medium-sized company, where the described reasons are present. In this study, future demand forecasts are generated based on historical demand data for products at a material number level using a gradient boosting machine (GBM). An improvement of 15% on the status quo (i.e. based on the root mean squared error) could be achieved with rather simple techniques. Hence, the motivation, the method, and the first results are presented. Concluding challenges, from which practical users should derive learning experiences and impulses for their own projects, are addressed.
Demand forecasting intermittent time series is a challenging business problem. Companies have difficulties in forecasting this particular form of demand pattern. On the one hand, it is characterized by many non-demand periods and therefore classical statistical forecasting algorithms, such as ARIMA, only work to a limited extent. On the other hand, companies often cannot meet the requirements for good forecasting models, such as providing sufficient training data. The recent major advances of artificial intelligence in applications are largely based on transfer learning. In this paper, we investigate whether this method, originating from computer vision, can improve the forecasting quality of intermittent demand time series using deep learning models. Our empirical results show that, in total, transfer learning can reduce the mean square error by 65 percent. We also show that especially short (65 percent reduction) and medium long (91 percent reduction) time series benefit from this approach.
Public transport causes in rural areas high costs per passenger and kilometer as the frequency of scheduled busses is low and therefore, many people avoid using public transport. With the trend of moving from urban regions to countryside individual traffic will further increase. To tackle issues of emissions, mobility for young and elderly people and provide economically meaningful public transport a new concept was elaborated in Germany. This consists of (partly) autonomous shuttle busses which are remote controlled. For implementation rural districts of Germany have worked together and set up a three-phase plan consisting of a project with public funding, a highly frequent used pilot region and industrial partners with the commitment and possibilities for necessary investments. The concept promises economical value with respect to installation, service and maintaining costs, it leads to lower barriers for public transport of young and elderly people and ultimately reduces emissions and congestions.
The purpose of this paper sought to develop a collaborative framework that provides wine bottling facilities, wine cellars and their direct supply chain partner guidelines to facilitate a collaborative partnership – aiming to aid responsive decision making and improve reliability. The framework was developed using a triangulation approach, consisting of an in-depth literature review, 14 semi-structured interviews with industry experts and a theoretical case study. The developed framework was presented to wine bottling facilities and their supply chain stakeholders. Indication are that the proposed wine industry collaborative framework should enhance supply chain collaboration and will contribute towards the guidance and facilitation in developing collaboration platforms to align supply chain operations, while improving bottling responsiveness and meeting demand requirements.
Rational behavior is a standard assumption in science. Indeed, rationality is required for environmental action towards net-zero emissions or public health interventions during the SARS-CoV-2 pandemic. Yet, little is known about the elements of rationality. This paper explores a dualism of rationality comprised of optimality and consistency. By designing a new guessing game, we experimentally uncover and disentangle two building blocks of human rationality: the notions of optimality and consistency. We find evidence that rationality is largely associated to optimality and weakly to consistency. Remarkably, under uncertainty, rationality gradually shifts to a heuristic notion. Our findings provide insights to better understand human decision making.
Der Fokus dieses Beitrags liegt in der Analyse einer nachhaltigen Verpackungsgestaltung mit Blick auf die kognitive und emotionale Steuerung von Kunden. Aufbauend auf den Guidelines zur nachhaltigen Verpackungsgestaltung werden unter Berücksichtigung relevanter Konsummotive des SHIFT-Modells die Möglichkeiten zur Beeinflussung von Kunden über den gesamten Customer Journey betrachtet. Dabei steht in der Lebensmittelindustrie die Verpackung als ein zentraler Kommunikationskanal im Fokus dieser Analyse. Im Sinne eines nachhaltigen Verpackungskonzeptes gilt es nun sämtliche Interaktionen mit dem Kunden sowohl online als auch offline so zu gestalten, dass Konsumenten zum nachhaltigen Konsum motiviert werden. Am Beispiel von Nomoo werden die einzelnen Schritte dargelegt.
An empirical study on management accountants’ roles and role perceptions: a German perspective
(2022)
The ongoing discussion on roles of management accountants (MAs) leads often to perceive the business partner (BP) role as the role of choice. Yet, many scholars and practitioners seem to assume that this role is clear to managers and MAs, that it makes sense for them and that all managers and MAs agree on it and implement it. Inconsistencies between actual roles, perceived, and expected roles might cause identity and role conflicts. However, we lack evidence of whether managers and MAs perceive, expect and act in the BP role and if tensions and conflicts might exist. This paper is based on a quantitative empirical study of a large German high-tech firm in 2019 whose top management decided to implement the BP role. We found several areas of tension in this role discussion and contribute to the literature on MAs’ roles with a more nuanced view of the interaction between managers and MAs regarding MAs’ roles. The study shows that there are mainly differences in business managers’ expectations of MAs to the role of the BP, which the MAs do not know exactly how to fulfill.
Due to the growing importance of videos for B2B sales outreach, this study proposes an extended model based on the Corporate-Video Model by Büsching and Meidel (2016) and a qualitative survey with high-ranking company representatives. The findings comprise seven complementary categories: structure, communication, product display, information content, unique selling proposition, value-based selling, and dramaturgy of product videos. The model extension aids practitioners in analyzing and conceptualizing compelling B2B product videos.