Essay from the year 2017 in the subject Psychology - Industrial and organizational psychology, grade: 1,0, University of Applied Sciences Essen, language: English, abstract: This essay aims to answer the question how fraudulent trading activities at the stock markets, such as stock price manipulation due to pump and dump schemes, could be prevented. This is especially considered under an ethical point of view. The paper includes a case study about stock price manipulation at the well-known investment banking firm Stratton Oakmont. The case study is used to relate the consequences and involved ethical issues using a real-life example. The analysis is mainly based on screening external newspapers, internet articles and books which concern related topics, such as business ethics and stock market manipulation.