WiSt - Wirtschaftswissenschaftliches Studium

We investigate gender-specific differences in winnings on the German version of the game show „Who wants to be a millionaire?“. The discrete and highly right-skewed distribution of winnings gives rise to interesting statistical problems. We show...

The 21st century has witnessed a rapid development and evolution of digital technologies. While the internet and online platforms are increasingly ingrained in our daily lives, a new era of the digital realm is emerging: the Metaverse. What is the...

The security situation in North-East Asia has deteriorated continuously in recent years. While North Korea is threatening its neighbours with an increasing number of missile tests, Taiwan’s situation in a potential conflict between the People’s...

Power Purchase Agreements (PPAs) are a contractual instrument for the purchase of electricity from renewable energy sources, which at the same time allows the hedging of market price risks due to its fixed price structure. This article defines the...

In addition to planning and control methods, heuristics („mental short cuts“) are also used in corporate decision-making, the application of which is sometimes viewed extremely critically. The article highlights one of the most important...

The procedure for modelling the yield curve using the Nelson/Siegel/Svensson method described in the first part of the case study is now applied. The yield curve estimation is explained using German government bonds and UK Gilts. Building on this,...

On August 2, 2024, the AI Act came into force. The AI Act is part of a new regulatory system for artificial intelligence in the EU. This new regulatory system is the world’s first comprehensive legal framework for artificial intelligence. It sets...

Argentina has experienced an economic decline in recent decades. Formerly one of the richest countries in the world, the country is now characterized by inflation, poverty and recession. The newly elected President Javier Milei wants to turn things...

Digital transformation processes lead to profound changes in job and competence profiles and must be accompanied by an effective change management. The key challenges are to remove obstacles to acceptance and to create a culture of innovation and...

Returns on capital play a prominent role in economics. Ultimately, all companies base their business practices on the return on capital employed. Equity dominates here. But which influencing factors determine the return on capital and how are they...

The circular economy aims to keep products and materials in the economic cycle for as long as possible in order to reduce resource consumption, avoid waste and emissions, and reduce the negative impact of the economy on the environment. It...

Motivated by the increasing interest of investors in sustainability issues, this article illustrates how sustainability ratings can be integrated into the traditional Markowitz portfolio optimization process. In particular, it shows that a negative...

A lack of sleep has a direct impact on job performance. In our study, we show that a majority of students have problems to fall asleep while it becomes obvious that stress is a significant trigger. We discuss coping strategies to handle stressful...

Social benefits, and particularly their intragenerational distribution – although surprisingly vaguely defined – are a much-discussed topic in the public debate. This article provides a clear economic definition of social benefits in Germany,...

Nelson/Siegel/Svensson have developed a parametric approach for estimating yield curves. Due to its good data fit, it is applied by central banks, in asset management, and in corporate finance. Yield curve modelling utilizing this method is...

Demographic change has gained momentum and is a reality for many companies. At the centre of the debate is the shortage of labour and skilled workers. After outlining the history of demographic change, the article presents its quantitative and...

Many central banks are currently examining whether they should issue central bank money in digital form („Central Bank Digital Currency“ – CBDC). It is intended to supplement cash and central bank deposits with a third form that can be used...