Portfolio selection using the multiple attribute decision making model

This paper focuses on classical portfolio strategies applied to five countries, which are Brazil, Russia, India, China and South Africa. These five countries form the so-called BRICS group. In particular, the authors investigate their corporate and sovereign bond market and evaluate whether these markets can represent a profitable investment for non-satiable and risk-averse investors. Two-step optimization is proposed to control price risk and market risk. For price risk management, classical immunization strategies and are obtained funds of bond are obtained that share the same risk measure. For market risk control, the previously found funds are used and a performance measure optimization commonly used in stock markets is applied to define the best portfolio of funds. Therefore, the resulting optimal portfolio controls the price risk and jointly maximizes a desired performance measure that includes the market risk. Finally, the authors propose an empirical analysis to evaluate the profitability of the suggested two-step optimization for the five BRICS countries and compare the ex-post sample paths of the obtained portfolios for testing the stochastic dominance relations.

The article analyzes some indicators of Ukraine’s financial security in the context of transnationalization and national interests. On the basis of the obtained results, the role of financial security in the context of transnationalization and national interests has been determined, directions for strengthening the financial security of the country have been proposed.
The main objective of the study is to determine the role of Ukraine’s financial security in the context of transnationalization and national interests, based on the study and evaluation of some financial security indicators. The methodology of the research is based on the early prevention of threats to financial security of Ukraine in the context of transnationalization and national interests, based on both macroeconomic and financial data from the entire financial system. The regression models were used, because they work dynamically and change as information changes. Diagrams can be used by financial analysts to understand the investment attractiveness of the country at the current time with the current level of financial security. Standard models are designed to predict the financial stress and threats to financial security. Financial security models must be built with the support of macroeconomic knowledge, assessment of other risks and expert interpretations, used to get the highest value in the research.
The procedure of simulation of financial security indicators of the country has been given. The use of correlation and regression analysis for forecasting the financial security indicators in Ukraine has been substantiated. The links between the indicator variables have been analyzed. The general view of model relations between financial security indicators in Ukraine has been determined, their statistical analysis has been carried out and the necessity of forecasting the financial security indicators of Ukraine has been substantiated.

The empirical evidence in the developed equity markets such as the United States, the United Kingdom, Germany, Japan and emerging markets had pronounced that there are institutional and individual investors’ cognitive psychology and mental biases in favor of the Growth Stocks, that is, the Growth Stocks are always preferred to the Value Stocks by the investors. The investors most times prefer the Growth Stocks to the Value Stocks irrespective of the stock fundamentals behavior in the equity market. The paper investigated whether Cognitive Psychology and Mental biases affect Portfolio Selection strategies using the Growth or the Value Stocks investment styles in the Nigerian Stock Market. In the study, the summary of the primary data was described and Multinomial Logistic Regression (MLR) models were adopted to make inferential decisions. The paper collected primary data through questionnaire administered to individual and institutional investors on the floor of Nigeria Stock Exchange (NSE). The findings from the analyses conducted confirmed a strong existence of Cognitive Psychology and mental biases in favor of the Growth Stocks in the Nigerian Equity Market. Investors had more belief in Growth Stocks than the Value Stocks notwithstanding the behavior of the market fundamentals. The study recommended that investors should seriously consider occurrences and performance fundamentals in Portfolio Selection in the Nigerian Equity Market.