The literature review in this thesis is distributed over two chapters. The aim of Chap. 2 is to discuss literature from the field of cost-of-capital. This is necessary as a foundation for the subsequent chapter, which is more application-oriented. In Chap. 3, previous empirical results on companies' cost-of-capital practices are discussed. Research gaps will be identified at the end of that chapter.This chapter is structured as follows: In Sect. 2.1, the broader field of company cost-of-capital is discussed. This includes a brief discussion of traditional seminal papers as a foundation for the rest of the literature review as well as a review of contemporary discussions about general issues of cost-of-capital, such as alternative determination models and the consideration of unsystematic risk. Section 2.2 shows how the field of cost-of-capital relates to the different sub-disciplines of Finance and for which fields of application of Managerial Finance it is relevant. In particular, the role of cost-of-capital in internal capital allocation, performance measurement and value-based management is discussed. In Sect. 2.3, a theoretical framework for the determination of cost-of-capital in a company group context that is derived from traditional Finance theory is presented as a foundation for the subsequent section. In Sect. 2.4, previous research on the determination techniques for the cost-of-capital of business units and projects is discussed thoroughly. This includes a detailed discussion of the techniques as well as the theoretical and empirical methods adopted by other researchers.