The study investigates whether the main capital market theories and pricing models provide a reasonably accurate description of the working and efficiency of capital markets, of the pricing of shares and options and the effect the risk/return relationship has on investor behaviour. The capital market theories and pricing models included in the study are Portfolio Theory, the Efficient Market Hypothesis (EMH), the Capital Asset Pricing Model (CAPM), the Arbitrage Pricing Theory (APT), Options Theory and the BlackScholes (8-S) Option Pricing Model. The main conclusion of the study is that the main capital market theories and pricing models, as reviewed in the study, do provide a reasonably accurate description of reality, but a number of anomalies and controversial issues still need to be resolved. The main recommendation of the study is that research into these theories and models should continue unabated, while the specific recommendations in a South African context are the following: ( 1) the benefits of global diversification for South African investors should continue to be investigated; (2) the level and degree of efficiency of the JSE Securities Exchange SA (JSE) should continue to be monitored, and it should be established whether alternative theories to the EMH provide complementary or better descriptions of the efficiency of the South African market; (3) both the CAPM and the APT should continue to be tested, both individually and jointly, in order to better understand the pricing mechanism of, and risk/return relationship on the JSE; (4) much South African research still needs to be conducted on the efficiency of the relatively new options market and the application of the B-S Option Pricing Model under South African conditions. / Financial Accounting / M. Com. (Accounting)

韓国の認知症政策の取り組みを総合的にまとめている「第3次痴呆管理総合計画(2016～2020)」を研究対象とし，認知症高齢者が生活するうえで抱えているニーズがどれだけ反映されているかと，計画によって実施されている取り組みの状況を，セオリー評価の理論枠組みを用いて検討した．計画の見直しのため，従来の実績測定中心の評価から脱却し，認知症者の視点からプログラムの妥当性を実証的に明らかにしたものである． / Research on the "Third Dementia Management Comprehensive Management Plan (2016 - 2020)" that comprehensively summarizes the efforts of Korean dementia policy and reflects the needs that elderly people with dementia have in their lives and the situation of the efforts being implemented by the plan was examined by using the theory framework of theory evaluation. In order to revise the plan, I excluded the evaluation centered the conventional performance measurement and empirically clarified the validity of the program from the perspective of elderly people with dementia. / 博士(社会福祉学) / Doctor of Philosophy in Social Welfare / 同志社大学 / Doshisha University