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An average investor trying to allocate his wealth among multiple assets ideally has nearly infinite possibilities to do so. However, asset allocation strategies try to facilitate this process. Nevertheless, no consensus exists on which strategy is ideal and yields the best performance. Therefore, this paper aims to determine an ideal asset allocation strategy for an average investor by comparing two asset allocation strategies.
The focus is on comparing the practical application of Markowitz’s Modern Portfolio Theory (MPT), a sophisticated asset allocation strategy, with an equally weighted asset allocation, namely the 1/N strategy. The past performance of these two strategies is compared with the help of a calculation example based on historical data. The quantitative analysis covers three time periods of different lengths between 1991 and 2022. Also, the strategies are applied to portfolios with different amounts of assets during these periods. Although the existing literature is very controversial concerning the performance of the two strategies, this research shows a clear result. Compared to the 1/N strategy, this study’s findings show an outperformance of the MPT strategy during every period and each portfolio combination. However, the difference in performance regarding return and risk is minimal in most scenarios and would not significantly affect an average investor who invests over a long-term horizon.
This paper analyses five different Cryptocurrencies, namely Bitcoin, Ethereum, XRP, Dogecoin and Litecoin, and studies their impact on traditional financial portfolios under different allocation strategies. The allocation strategies under consideration in this paper are the modern portfolio theory according to Markowitz, an extension of it such as the tangency portfolio, and the equally weighted portfolio. Further, this study explores the effect on the efficient frontier when Cryptocurrencies are added to the efficient portfolios. In addition to that, the paper aims to examine whether the mean – variance portfolio optimization according to Markowitz outperforms the naïve and tangency portfolio strategy. The portfolio performance is evaluated based on the Sharpe ratio. The quantitative analysis of this paper covers the time period from 2017 to 2022, in total five years. In accordance with the existing literature on portfolio optimization with Cryptocurrencies, the study reveals that besides some issues related with Cryptocurrencies such as cybercrime and a lack of regulations, Cryptocurrencies can be beneficial for portfolio diversification with traditional financial assets. Referring to the portfolio strategies, the study highlights that the optimal mean – variance portfolio and tangency portfolio do not differ significantly in terms of Sharpe ratio. However, both strategies outperform equally weighted portfolios.
The following study examines the influence selected variables have on the price of the cryptocurrency Bitcoin by utilizing a multiple linear regression model. Data of 267 observations for each variable during a five-year period from 13 August 2016 to 1 October 2021 are analyzed. The results present empirical evidence on the relationship of Bitcoin and external determinants such as traditional financial assets, in particular the stock market, the bond market, domestic currencies, the real estate market, gold, and the popularity of Bitcoin, represented by a Google Trends analysis. The findings imply that only the stock market and the real estate market proxies significantly influence the price of the cryptocurrency Bitcoin.
Artificial First Responder
(2022)
CSAF in DefectDojo
(2022)
Private equity investors acquire companies, aim to increase the company’s corporate value and thus aim at selling the respective company at a profit after some time. To increase the value of their portfolio companies, private equity investors employ three main value creation strategies. Financial leverage, multiple expansion, and operational value creation. There has been a significant shift in importance between these three value drivers. While in the 1980s more than 50% of value creation was achieved by leveraging equity with the help of debt capital, this value driver only accounted for 15% in the 2010s. Instead, the value driver operational value creation has gained significantly in importance. It alone accounted for 55% of total value creation in the 2010s, more than financial leverage and multiple expansion combined. The aim of this thesis is to answer the question which operational value creation levers private equity investors use to increase the value of their portfolio companies during the holding phase. In addition, the thesis deals with the question of operational value creation drivers of the future. These are derived based on prevailing megatrends of the future. Research on the operational value drivers used by private equity investors revealed that these drivers can be assigned to three main aspects.
These aspects are, on the one hand, financial aspects, where private equity investors take measures to improve working capital. Moreover, within the framework of financial aspects private equity investors influence the cost structure as well as the cost of capital and the capital structure. Furthermore, private equity investors assert influence on the governance structures of their portfolio companies. For the aspect of governance, measures such as replacement of management/change of management structure, monitoring and controlling as well as incentive systems were identified to increase the value of the company. Another identified aspect for value creation are strategic aspects. In terms of strategic aspects, private equity investors use the levers of mergers and acquisitions, organic expansion, outsourcing/insourcing as well as product and pricing strategies.
The research on the value creation levers that private equity investors will have to apply in the future in order to ensure value creation of their portfolio companies is based on the megatrends of digitalization, demographic change and sustainability. The research revealed the implementation of digitalization measures, employee, and talent management as well as the implementation of ESG criteria.
This thesis has structurally outlined value drivers that contribute to value creation in private equity investments. The research also showed that value creation levers taken can directly and indirectly influence the value of the portfolio company. Value drivers II with a direct effect on the change in equity value affect either revenue, margin or net debt, while the indirect value drivers affect the valuation multiple.
Agri-Photovoltaics is a novel renewable energy technology. Amid rising climate change concerns, integrated photovoltaic systems are gaining in importance. Problems such as the increasing scarcity of land and the sealing of fertile soils are becoming more and more serious. Land consumption is often at the expense of agriculture. Farmers are struggling to cope with the ever more difficult conditions due to the effects of climate change. Therefore, the world must increasingly deal with dual use of land. However, especially in Germany the technology of agri-photovoltaics is not yet very advanced. The objective of this thesis is to identify the potential of this technology for the energy transition in Germany. Furthermore, the economic potential for regional farmers in Germany will be elaborated based on an investment appraisal of a vertical agri-photovoltaic system. The application possibilities of agri-photovoltaics are versatile. The work shows that already today farmers in Germany can diversify their income by investing in an agri-photovoltaic system. The costs are higher than for ordinary ground mounted systems, however the land can still be used for agricultural purposes. The investment calculation is carried out in different scenarios. Particularly, the remuneration per kWh as well as the discount factor are decisive for a positive net present value project. The results of this work show that the potential of agri photovoltaics is high for both the energy transition in Germany and the economic benefits for regional farmers. For an increasing expansion of the technology, more precise legislation and appropriate subsidies for agri-photovoltaics are needed.
Currently, the technology is insufficiently covered in German legislation, which needs to be addressed.
For thin zinc sheets for construction purposes different welding techniques like tungsten inert gas (TIG), plasma arc (PAW) or micro-friction stir (μFSW) welding can be used. However, low ultimate tensile strength (UTS) often leads
to cracking in the weld even at low loads. The characteristics of laser welding make it particularly suitable for joining thin sheets and low-melting materials. Nevertheless, little is known about the weldability of thin zinc sheets by laser welding and the effects of the basic process parameters of laser power and travel speed on the welding process and the UTS of the weld. In this study,
thin zinc sheets were welded at different laser powers and travel speeds. Tensile testing of the welded joint showed, that the UTS and elongation at break increase with the energy input per unit length, but the welding process became gradually unstable and the susceptibility for welding defects increased. This leaves only a few laser powers and travel speeds that produce good welds with respect to UTS and elongation at break. Under these conditions laser welding is an alternative processing technique to
TIG, PAW and μFSW, but needs further investigation to
improve its stability. To implement laser welding in highly
automated production processes further research is required on laser welding of rolled zinc alloys.
Einfluss des Klimawandels auf die deutsche Weinindustrie - Zukunftsanalyse für die deutschen Winzer
(2022)
Die vorliegende Bachelorarbeit gibt einen Überblick über die Auswirkungen des Klimawandels auf die deutsche Weinindustrie. Das Ziel war es, die zukünftigen Risiken wie auch Chancen für die deutschen Winzer zu ermitteln und anhand der Ergebnisse Handlungsempfehlungen für die zukünftige Weinindustrie zu entwickeln. Um die Forschungsfragen zu beantworten, wurde eine Szenario- Analyse durchgeführt, welche sich an den deutschen Winzern orientiert. Dabei wurden die Einflüsse betrachtet und anhand dieser wurden unterschiedliche Zukunftsprojektionen erstellt. Die Szenario-Analyse zeigte, dass die deutsche Weinindustrie bei den aktuellen Entwicklungen des Klimawandels deutlich als Gewinner hervorgeht. Dennoch müssen Winzer und andere Akteure der Wein- industrie heute bereits wichtige Entscheidungen treffen und sich den Bedingun- gen anpassen um in der Zukunft die entstehen Chancen nutzen zu können.
Bei dem seit 2019 auf dem Markt befindlichen Card-Mailing-System MAILMASTER der Firma Atlantic Zeiser GmbH, handelt es sich um eine Kleinserienmaschine zur Applizierung von Kunststoffkarten auf Briefen. Nach den ersten Kundeninstallationen soll nun die Reduktion von Montage- und Fertigungskosten erfolgen. Zur Identifizierung von Einsparpotential und bei der Ausarbeitung kostengünstigerer Alternativen werden diverse Methoden des Lean Managements genutzt.
Im Rahmen dieser Arbeit soll ein Werkstückträger für eine teilautomatisierte Montagelinie einer Spindelbaugruppe entwickelt werden. Hauptaugenmerke bei der Entwicklung liegen auf optimiertem Handling für die Montagearbeiter*innen und sinnvolle Gestaltung der Schnittstellen zur Montagelinie. Durch praktische Versuche und iterative Entwicklungsschritte mittels Testaufbauten aus additiven Fertigungsverfahren kann ein anforderungsgerechter Werkstückträger ausgearbeitet werden.
Dieses Forschungsprojekt, welches auf einer vorausgegangenen Bachelor-Thesis basiert, beschäftigt sich mit der Erstellung eines Planspiels. Mithilfe des Planspiels soll den Studierenden der Vorgang einer Wertstromaufnahme und Wertstromanalyse nähergebracht und das Vorgehen anhand einer nachgebauten Produktionshalle der fiktiven Firma „Tools AG“ vermittelt werden. Die Aufgaben des Planspiels entsprechen dem realen Vorgehen einer Wertstromarbeit. Es werden im Rahmen dieser Arbeit die Figuren der Produktions-Prozesse, die Aufgabenstellung des Planspiels wie auch die zu lösenden Probleme des Wertstroms vorgestellt.
University-Industry Collaboration (UIC) is considered by academics and industry as a vital factor that has the power to both positively and negatively impact the open innovation (OI). To contribute to the literature and to identify challenges as well as to conceptualize some recommendations to help industries, this thesis raised a question:
what are the challenges of UIC and what recommendations can be made to solve the challenges. The main research objective was to recognize the determinants of UIC challenges. An empirical study was conducted in order to give an answer to the research questions and to meet the research objective. This research explicitly focused on students/interns and internships to analyze and to discover the challenges and solutions since students or internships are the least researched area in the field of UIC research. Participants were personally contacted with the survey link that was created online to conduct explorative research with the help of close-ended (quantitative) and open-ended (qualitative) questions. The results reveal that there are numerous challenges students face during the internship and thus these most likely hinder the successful UIC and ultimately successful OI. According to the results obtained from both quantitative and qualitative sections obvious and major challenges lie in innovation mediators ‘organizational culture’. From the quantitative result perspective only, major challenges are in the area of absorptive capacity and supervisors' support, internalization, and trust. Similarly, from the qualitative results perspective only, major challenges are bad crisis management, communication, and hierarchical structure.
Our report focuses on the possible relationships between the occurrence of stressors and the use of VR. The issue was methodologically addressed by developing a general taxonomy of possible stressors in VR through related work and firstly carrying out a series of tests isolating only the baseline of headset-related stress.
Twelve young adults were tested in a pilot study by a specific five minute VR item for qualitative evaluations of the consumed content, their experience with the equipment, and their general experience running through our study. Same tests were carried out with a comparison group in a boxed TV-environment. For both groups, biomedical parameters were derived that indicate the stress level of the subjects (ECG, EDA and Cortisol test/salivette). Additionally the subjects were screened by questionnaires (VRSQ, NASA TLX-raw, semantic differentials) regarding changes in comfort. VR test subjects were screened by the headset's sensor data too (heart rate, pupil diameter, cognitive load).
Qualitative questions could not reveal any major irritations regarding the content of our relaxation scene. The headset’s sensor data did not indicate any cause of stress in subjects, but it is not possible to take baseline measurements without having the subject wear the VR headset. All other data show experimental validity and robustness.
Although knowing that our samples are small and the power of our tests may not be sufficient to detect a precise difference between the means, we decided to perform an experimental statistical analysis of the pilot study subject data (e.g f-tests, equal/unequal, significance level: 0.05).
According to the results and limitations of this analysis, young adults are not likely to experience stress from short-term use of VR headsets where all other VR stressors have been eliminated. Ten hypotheses in this regard have been rejected.
Prior research found extremeness aversion effects to be common and robust. Nevertheless, most research neglected the spatial arrangement's influence on a consumer's choice and placed the compromise option of a choice set simultaneously in the spatial middle. Following these findings, five bachelor theses were conducted to investigate both aspects by analyzing numerical and spatial choice architectures – their data comprised three online surveys and three field experiments. This study aimed to compare their findings and analyze their data sets to search for overarching effects. Therefore, we hypothesized that there is either information-format compatibility or a general tendency towards the spatial middle of a choice set. To research this hypothesis, we brought the data sets into a comparable format, analyzed our findings, and conducted t-tests to test for statistical significance. Even though the study could not find overarching effects across the data, it supports the notion that a choice set's spatial arrangement, like the numerical one, can influence consumer behavior. Furthermore, it led to valuable insights for future research approaches concerning expanding extremeness aversion into a spatial dimension.
Das Ziel des vorliegenden Forschungsprojektes ist
es, ein neues Konzept für ein Messinstrument zu erstellen, um die benötigte Länge von Implantatstäben für die Wirbelsäulenchirurgie ermitteln zu können. Die Implantatstäbe werden genutzt, um Pedikelschrauben in einem Pedikelschraubensystem miteinander zu verbinden. Durch das Konzept soll ermöglicht werden, dass der operierende Arzt die benötigte Implantatlänge bestimmen kann, ohne das vorgesehene Implantat auspacken und erproben zu müssen. Die bisherige single-use-Lösung eines silikonummantelten Aluminium-Probestabes mit entsprechen den Längenmarkierungen soll von dem neu ausgearbeiteten Konzept abgelöst werden. Dafür werden verschiedene Lösungskonzepte erarbeitet und methodisch das geeignetste Konzept gewählt. Für künftige Operationen soll ein Stab aus der Formgedächtnislegierung Nitinol verwendet werden. Der „Probestab“ wird in verschiedenen Längen angeboten (120 mm, 300 mm, 500 mm) und bietet den Vorteil der Mehrfachverwendung. Nachdem der Arzt den Probestab gebogen und als Längenmessinstrument verwendet hat, kann dieser in die Aufbereitung gegeben werden, wo er durch die entstehende Hitze wieder die Ursprungsform erlangt und zum erneuten Einsatz bereit ist.
This paper aims to create a foundation for further, in-depth research of the topic Indigenous entrepreneurship in Colombia and other countries, as well as to facilitate the analysis of obstacles in Indigenous businesses. To answer the research question, seven experts are interviewed using semi-structured interview guides based on several deductive categories. The findings are then analysed through a thematic content analysis before they are presented and discussed.
The results show that there are various inter-connected obstacles impeding more success of Indigenous businesses in Colombia, which are not sufficiently studied and addressed. The most important obstacles are corruption and marginalization, as well as resulting conditions like a lack of infrastructure and education. This study emphasizes the importance of, and encourages the realization of further,
profound research regarding this and related topics.
Climate change is currently one of the biggest challenges both in terms of danger to natural habitats, wildlife, and humanity. To tackle climate change, we need to reduce our carbon emissions in a fast and decisive way. This thesis studies one of the potential solutions to do so: green hydrogen. More specifically, its potential development by 2030 in Spain using INKA 4.0 scenario planning software.
Green hydrogen shows to have a wide range of applications, from transport to heating and industry with great potential to decarbonize many sectors. It does come, however with a number of important hurdles mainly related to cost, scalability and technical difficulties that will need to be addressed for it to be successful. With this, 10 descriptors were created generating three scenarios to be studied. The most consistent of them, a successful development of green hydrogen in Spain by 2030 is characterized by having all of its descriptors in a favoring state while the other two have some or all in a hindering state, making its development not successful within the established timeframe. Concluding that due to the great challenge the development of green hydrogen is, its success needs to have all factors supporting it.
Cybersecurity threads are a huge problem for all sizes of businesses. The traditional way of protecting valuable resources in the IT-Industry is a perimeter based security strategy. To ensure proper access rights for resources, firewalls, and other network-based inspection tools were used. The current move to the cloud undermines classic security strategies by blurring borders. The Zero Trust approach does not rely on edges and borders to ensure network security. Instead, all connections have to be verified and authenticated individually. In this thesis, a zero trust security model in a heterogeneous open source environment was verified. The three main observations were:
A zero trust architecture is possible, but the implementation is difficult. Half of the issues discovered must be covered by organisational measures. The tools available to cover technical measures are not developed enough. This is expected to change in the near future, as varoius companies already identified this issue.
Die Firma TCS möchte einen Klebeprozess für die Tasten einer Klingenanlage automatisieren. Die Anlage hierzu soll, soweit möglich, selbst entwickelt und gefertigt werden. Besonders die Vorteile des 3D-Drucks und Entwicklertools wie Arduino sollen in dem Projekt genutzt werden und zu einer günstigen Lösung führen. Der erste Schritt in Richtung Automatisierung wird durch eine Zuführlösung ermöglicht, die in dieser Arbeit entwickelt, gefertigt und untersucht wird.
This thesis aims to ascertain whether the concept of job sharing might be a solution for organizations to adapt their company values to meet the changing principles of society. The shift in demands results from the younger generations seeking different values in their free time, which also influences the demands at work. The disbalance between organizational and individual values leads to employee dissatisfaction and increasing turnover rates. The part-time concept of job sharing is on the rise regarding new work opportunities. Therefore, subtopics including flexibility, work-life balance, gender balance, and diversity in the workforce are positively encouraged through job sharing. The data and research in this thesis are obtained from existing literature on the work concept. Most previous research has focused on the influences on individuals and less on multiple levels within a company. The findings of this paper state that job sharing can significantly impact the value shift of a company in many different facets. Nevertheless, the concept also provides a large number of requirements on several levels which need to be adjusted to benefit from the concept.
Due to technical advances, multisensory technologies have gained traction in the research and development of many industries. With the launch of virtual and augmented reality systems, the potential for these technologies increased even further. The senses of vision and hearing have long been integrated into current products, leading to the assumption that olfactory stimuli are likely to be included soon to stimulate the sense of smell.
With this trend, the issue of implementation into current digital products and services arises, as odors currently cannot be captured in one place and released in another on a large scale. Therefore, this thesis deals with the nature of smell from a cognitive psychological and technological viewpoint. We show why it makes sense to stimulate the sense of smell in multisensory experiences and present early and current technical standards. In addition to this, we conducted expert interviews enabling us to provide insights into the digital scent and olfaction industry. Among other aspects, our results suggest that there are fundamental challenges that developers have to overcome and that a successful implementation depends on the business application.
Growing environmental awareness, especially among young generations, is reflected in the willingness to accept price premiums for sustainable and recyclable products. In recent years, marketers have focused on reinforcing consumers’ attention and interest in green goods by increasing the effectiveness of various sustainability information on product packaging.
In this thesis, an analysis of variance (ANOVA) investigated the effect of visual and verbal recycling claims on product packaging upon the willingness to pay (WTP). Although findings showed no changes in WTP related to a visual claim, the presence of a verbal claim positively impacted the WTP in two of four cases. Further, significant interactions between the two factors were detected. The results suggest that students considered an imagery seal irrelevant during product evaluation, whilst communicating recycling information with a textual message or with a conjunction of both claims showed a tendency to improve price-value perception. However, results for the verbal and interaction effects showed variations across products. Therefore, one may not draw unequivocal assumptions from the findings of this study without research replication on a larger scale.
This research identifies positive and negative influence factors by examining the effectiveness of digital video advertising. The objective is to discover ways of leveraging
these factors successfully through an extensive literature review. As this ad format has developed into a staple in most brands' media strategy, it is valuable to drive
understanding of effective implementation forward. Three brands that utilize digital video advertising are selected for an analysis of their recently published ads. This analysis is supported by a suggested model that was developed based on advertising literature to assess ad effectiveness. Results show that the perceived intrusiveness of an ad and the consequential ad avoidance behaviours in consumers represent a hindrance to ad effectiveness. In contrast, elements used in an advertisement that increase its value facilitated ad effectiveness. Credibility, entertainment and informativeness are ad value contributors and impact ad recall, the gateway to positive marketing outcomes such as purchasing decisions. The circumstances under which consumers are exposed to digital video advertisements play a role in if the ad message can effectively be conveyed.
While negative influence factors have their detriment, they can still be counteracted and leveraged. Advertisers and ad-supported video streaming sites like YouTube can find
ways to broadcast ads without significantly impeding the user experience and, in doing so, secure the continued profitability of this promotion format that depends on users
watching ads.
We, a group of students from the "International Business Administration (IBW)" course at the Faculty of Business and Economics, have carried out a project as part of the subject "Managing Business Processes" that is intended to strengthen HFU's international reputation. This digital cookbook is intended to provide our guest students from partner universities with the opportunity to root the culture they have brought with them. On the other hand, we as hosts would like to convey the local culture to our guest students. By sharing diverse, broad and varied cuisines, we as a community could fulfill our motto of students for students. Not only does the HFU CookBook focus on the culinary arts, but it was also possible to facilitate personal student exchanges through an individual fact sheet. Due to the Corona situation, HFU could not live up to its usual standard for international exchange. Therefore it was important for us to enable the students a personal exchange, based on cultural facts, personal experiences and certain background information.
We hope that all readers of this book will enjoy cooking the recipes and learning about the different cultures.
Bon appétit!
Frugality has become a prerequisite for success in a low-resource environment, a reality exacerbated by the COVID-19 pandemic and the war in Ukraine. When it comes to consumer needs, the priorities affordability and functionality are increasingly coming into focus. This study examines how frugal products are performing in developed markets, whether they meet consumer needs, and ultimately if there is a demand for these products.
The aim of this paper is to assess the status of Frugal Innovation (FI) in developed markets, using Germany as an example, and thus consumer behavior, in order to better evaluate the current status and related potentials based on this. The link between FI and environmental and social sustainability can be traced back to and limited to the minimal use of resources. Against the backdrop of the current economic and political situation, these factors represent one of the most significant competitive advantages of today.
This multi-method experiment helps to understand the consumer behavior towards frugal products as well as the opinions and attitude towards it. As a result, it can be said that there is interest in innovation in general as well as FI. The respective buying decisions were balanced, what means that frugal products do not necessarily outperform non-frugal ones, but they are in strong competition. It can be concluded that there will be an increasing demand for frugal products in developed markets such as Germany, especially for certain product categories.
In two experiments, this empirical research examines consumers’ willingness to pay and the likelihood of purchase decisions by thoroughly investigating the neural, behavioral, and psychological properties of packaging design. A general theory is tested by functional magnetic resonance imaging (fMRI) and a NeuroPricing online survey on consumer behavior using the example product Tassimo. Hypotheses are tested with 592 German consumers who evaluated the packaging of Tassimo coffee. A closer look at the neural data from the brain imaging experiment shows that uncertainty can arise among consumers with regard to sustainable packaging and this can have a negative impact on the purchase decision and willingness to pay. The results from both experiments show that it is not possible to make a holistic statement as to which sustainable or enjoyment-focused packaging design increases the likelihood of a purchase decision or the willingness to pay. Implications for future packaging design research and underlying complexities with sustainable packaging are discussed.
Trends im Compilerbau
(2022)
TSE-Signatur Verifier
(2022)
Das stoffliche Recycling von Handwerkzeugen stellt eine Herausforderung dar. Hierzu ist eine Trennung der Werkstoffverbunde in ihre Einzelkomponenten erforderlich. Im Rahmen dieser Arbeit werden unterschiedliche mechanische, thermische und chemische Verfahren zusammengefasst, mit welchen dieses Ziel erreicht werden kann. Um den Produktionsprozess der Handwerkzeuge noch ressourcenschonender zu gestalten und die Verwendung von rohölbasierten Kunststoffen zu reduzieren, werden im zweiten Teil der Arbeit Biokunststoffalternativen identifiziert und hinsichtlich ihrer Eignung für die Produktion von Handwerkzeugen untersucht.
Diese wissenschaftliche Publikation befasst sich mit dem Aufbau und der Funktionsweise der alternativen
Antriebstechnologie Wasserstoffverbrennungsmotor. Es wird das
Potential dieses Motors hinsichtlich der Klimaziele als Antrieb für PKW und schwere Nutzfahrzeuge untersucht. Dazu wird dieser bezüglich des Wirkungsgrads und der CO2-Bilanz mit den herkömmlichen Antrieben Otto- und Dieselmotor sowie den
weiteren alternativen Antrieben Batterie und Brennstoffzelle
verglichen.