Ferreira, MiguelKomischke, Christoph2017-10-232020-01-202017-01-20http://hdl.handle.net/10362/24441Credit ratings are used to assess the probability of default of a company. There are different approaches using a quantitative, qualitative or a hybrid method for evaluating the creditworthiness. In this thesis, the impact of the emission scandal of Volkswagen on the credit rating will be determined. Therefore, three approaches will be conducted, namely the S&P rating, which is a hybrid method, as well as the two quantitative concepts Z-Score and Distant to Default, will be conducted. The results will be compared with each other before as well as after the emission scandal.engmaster thesis201714094