Hesitant fuzzy linguistic portfolio model with variable risk appetite and its application in the investment ratio calculation

2019 ◽  
Vol 84 ◽  
pp. 105719 ◽  
Author(s):  
Wei Zhou ◽  
Zeshui Xu
2009 ◽  
pp. 4-14 ◽  
Author(s):  
G. Gref ◽  
K. Yudaeva

Problems in the financial sector were at the core of the current economic crisis. Therefore, economic recovery will only become sustainable after taking care of the major weaknesses in the financial sector. This conclusion is relevant both for the US and UK - the two countries where crisis has started, and for other economies which financial institutions turned out to be fragile in the face of the swings in the risk appetite. Russia is one of the countries where the crisis has revealed serious deficiency in the financial sector. Our study of 11 banking crises during the last 25-30 years shows that sustainable economic recovery and decrease in the dependence on commodity prices will be virtually impossible without cleaning of balance sheets and capitalization of the financial sector.


2020 ◽  
Vol 17 (1) ◽  
pp. 59
Author(s):  
Ching Ching Wong

Enterprise Risk Management (ERM) is an effective technique in managing risk within an organization strategically and holistically. Risk culture relates to the general awareness, attitudes and behaviours towards risk management in an organisation. This paper presents a conceptual model that shows the relationship between risk culture and ERM implementation. The dependent variable is ERM implementation, which is measured by the four processes namely risk identification and risk assessment; risk treatment; monitor and consult; communicate and consult. The independent variables under risk culture are risk policy and risk appetite; key risk indicators; accountability; incentives; risk language and internal relationships. This study aims to empirically test the relationship between risk culture and ERM implementation among Malaysian construction public listed companies. Risk culture is expected to have direct effects and significantly influence ERM. This study contributes to enhance the body of knowledge in ERM especially in understanding significant of risk culture that influence its’ implementation from Malaysian perspective.


2020 ◽  
Vol 26 (1) ◽  
pp. 74-85 ◽  
Author(s):  
N. A. Putintseva ◽  
E. V. Ushakova

The presented study summarizes the results of the implementation of liberal market reforms in Russia and reviews tools of the market economy that could solve the problem of distrust within Russian society.Aim. The study aims to define the underlying problems that stem from the peculiarities of the historical development of the Russian Federation and now hinder the advancement of our country to a new level of development, and to propose directions for solving these problems.Tasks. The authors summarize the socio-economic consequences of the implementation of liberal market reforms; define the problems of the implementation of a rent-based economy in modern Russia; prove that Russia cannot advance to a new level of development without solving the problem of social distrust; review the tools that could change the current situation of global social distrust (publicprivate partnership, proactive budgeting, clusters, territorial marketing, Far Eastern Hectare program, smart cities, incident management).Methods. This study uses general scientific methods of cognition to examine the results of the implementation of liberal market reforms, identify the problems of modern Russia, and determine the possible directions and tools of development.Results. Russia’s development is historically based on finding and living off the natural rent. This perspective significantly narrows the range of ideas about the potential development directions for the Russian Federation. The rent-based development options proposed today expose another common Russian trait — uncertainty, lack of risk appetite, pessimism, and fear of “things getting worse”. Implementation of democratic reforms in the context of rent-based economic institutions, lack of mutual trust within society, poor performance of courts — all this aggravates the current situation.Conclusions. Nowadays, Russia needs an economy that would create a demand for human capital and inclusive political institutions that would make people engaged in the life of the nation, allowing them to capitalize on their creativity without leaving their homeland.


2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Hongliang Wu ◽  
Daoxin Peng ◽  
Ling Wang

Effectiveness evaluations are one of the important ways to guide grid investment and to improve investment efficiency. Improving the effectiveness of grid investment evaluations is studied based on the optimization of the investment evaluation index system and the utility evaluation model. The index system is optimized by establishing an evaluation index system of grid investment effectiveness, considering the redundancy between the indices, and constructing an ISM-DEA model. The utility function model was introduced to fully consider the different risk appetites of decision-makers, and a utility evaluation model that takes risk appetite into account was established. An improved weight integration model based on multiobjective optimization was established by considering the minimum deviation and the trend-optimal objective function when setting the index weights. The calculation results show that the feasibility of the index system optimization model and utility evaluation model constructed in this study is verified under the premise of satisfying the assumptions. By adjusting the risk preference coefficient of decision-makers, the dynamic optimization of the grid investment utility evaluation results can be realized.


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