This chapter provides a critical review of the literature related to the problem area you are studying. This means that you should demonstrate your ability to identify and to analyse the strengths and weaknesses of the theories or schools of thought relevant to your topic. You should also demonstrate your ability to identify how your study may contribute to the existing body of knowledge.This is a library-based dissertation, the literature review process also identifies secondary data sources. These can be for example sources of raw data such as government statistics, or sources of summarised and analysed data in the form of case studies. The conceptual framework guides the identification of the data sources relevant to answering your research questions. The bulk of your argument is substantiated by secondary data