scholarly journals Efficient Portfolio Selection and Its Applications to Decision Making

Author(s):  
Nebojsa M. Ralevic ◽  
Vladimir Dj. Djakovic ◽  
Goran B. Andjelic ◽  
Jelena S. Kiurski

Abstract—Dynamic nature of investment return requires the application of the appropriate methodology, especially regarding enhanced volatility induced by frequent extreme events occurrence. The subject of the research is to analyze the possibility of efficient portfolio selection on the transitional financial market of the Republic of Serbia.  The main objective is to gather empirical evidence about the investment portfolio performance with special attention to the decision making process. The methodology in the research implies the usage of the appropriate portfolio optimization methods. The research results stress the significance of efficient portfolio selection in contemporary business conditions. It can be concluded that it is necessary to examine the volatility of the portfolio assets and thus enabling the efficient portfolio selection, which is especially challenging on transitional markets.

2019 ◽  
Vol 111 (2) ◽  
pp. 42-56
Author(s):  
Agata LASOTA-JĄDRZAK

The problem of improving the decision-making process in highly hierarchical organizations is the subject of reflection and discussion of many authors. The aim of the paper is to signal the need to introduce changes not only in the organizational structure of the Police of the Republic of Poland, maximizing the rationality of the decision-making process in the conditions of deep civilizational transformations, but also introducing modern methods of information management. The proposed directions of changes will increase the effectiveness of the functioning of the Police organizational units in the conditions of increasing turbulence of the state environment in the 21st century.


2014 ◽  
Vol 1020 ◽  
pp. 765-768
Author(s):  
Eva Berankova ◽  
František Kuda ◽  
Stanislav Endel

The subject of this paper is to evaluate criteria in the decision-making process for choosing new usable office facilities in light of a big company or public service seeking for new usable office facilities. The criteria defining the requirements for individual selection variants enter into this decision-making process. These criteria have qualitative and quantitative characters. In order to model the criteria, it is desirable that their values are standardized. The method of standardization of these criteria is given in this paper. In this paper, attention is paid to the decision-making process in the course of choosing new usable facilities in administration objects. This decision-making process is based on input data analyses and on conclusions for a certain selection variant resulting from them.


Legal Studies ◽  
1995 ◽  
Vol 15 (2) ◽  
pp. 283-305 ◽  
Author(s):  
Sally Wheeler

The Company Directors Disqualification Act 1986 (CDDA) instituted, inter alia, a mechanism whereby directors of failed companies can be disqualified from holding office in the future as the result of an application to the court by the Secretary of State, or in the case of compulsory liquidators, the official receive and a subsequent finding by the court that the director is unfit. The operation and effect of the CDDA has been the subject of speculation in the national press, other media and comment from insolvency practitioners since its inception. Most of this comment has focused on the role of the DTI and on its perceived failure to take steps to disqualify directors in sufficient numbers.


Author(s):  
Kyungwon Kang ◽  
Hesham A. Rakha

Drivers of merging vehicles decide when to merge by considering surrounding vehicles in adjacent lanes in their deliberation process. Conflicts between drivers of the subject vehicles (i.e., merging vehicles) in an auxiliary lane and lag vehicles in the adjacent lane are typical near freeway on-ramps. This paper models a decision-making process for merging maneuvers that uses a game theoretical approach. The proposed model is based on the noncooperative decision making of two players, that is, drivers of the subject and lag vehicles, without consideration of advanced communication technologies. In the decision-making process, the drivers of the subject vehicles elect to accept gaps, and drivers of lag vehicles either yield or block the action of the subject vehicle. Corresponding payoff functions for two players were formulated to describe their respective maneuvers. To estimate model parameters, a bi-level optimization approach was used. The next generation simulation data set was used for model calibration and validation. The data set defined the moment the game started and was modeled as a continuous sequence of games until a decision is made. The defined merging decision-making model was then validated with an independent data set. The validation results reveal that the proposed model provides considerable prediction accuracy with correct predictions 84% of the time.


1950 ◽  
Vol 3 (1) ◽  
pp. 72-87
Author(s):  
Janet Besse ◽  
Harold D. Lasswell

Opinion differs about the role of syndicated columnists in the forming of national opinion and in the decision-making process in the United States. Our columnists have been the subject of pioneering studies, but we have a long way to go before the picture can be called historically complete, scientifically precise, or fully satisfactory for policy-making purposes. What the columnists say is an important chapter in the history of the American public, and history is most useful for critical purposes when written close to the event. The general theory of communication and politics can be refined as the details of the opinion process are more fully known.


Detritus ◽  
2020 ◽  
pp. 92-102
Author(s):  
Sabrina Sacco ◽  
Maria Cerreta

This contribution refers to a research carried out between the Departments of Architecture of the University of Naples Federico II and the University of the Republic in Montevideo. The research focuses on the theme of re-use as a practice able to trigger synergistic mechanisms between different entities and identities of the urban fabric. At the centre is Patrimonio Plástico, a decision-making process for the re-use of an industrial architecture dealing with the recycling of waste and materials, such as plastic, containers, and abandoned spaces of the city. The multidisciplinary and multiscalar decision-making process translates into actions some objectives of the Agenda 2030 SDGs at a global level and the objectives expressed by the various social groups interviewed at the local level in order to identify the preferable project proposal whose it has been assessed the economic, social and environmental sustainability.


2021 ◽  
Vol 6 (3(16)) ◽  
pp. 323-350
Author(s):  
Dženeta Omerdić

Before the socio-political communities are posted, a very demanding task of defining the subject on whose name will behalf political power is implemented over a given state territory. However, the question about the subject of sovereignty should in no case be misunderstood as an issue of simply theoretical approach. The level of a state’s democracy, as well as its ability to realize internal and external sovereignty, depends entirely on fact: does the power belong to the People and whether it derives from the People. In other words, the issue of popular sovereignty is a substantial, constitutive element of modern democratic states. When we speak about contemporary Bosnia and Herzegovina, the functionality of the entire state government is often hindered by the complex decision-making processes at all state levels which lead to obstruction of the entire decision-making process. Such a dysfunctional decision-making process on the state level poses a threat and disables the Bosnian plural society to respond to the modern challenges of a democratic functioning state. The legal nature of Bosnian society is determined by the existence of constituent people who have “usurped” the entire decision-making process. There is still no end in sight to the struggle that leads to an oligarchy of the ruling elites; furthermore, there is still no appropriate socio-political mechanism that will enhance the accountability of the representatives to their voters; it is still inconceivable that decisions of state authorities are effectively and consistently implemented throughout the national territory. In other words, there is still no appropriate mechanism that will enhance the principle of popular sovereignty. It is necessary to “offer” Bosnia and Herzegovina’s pluralism and its political tradition a form of democratic authority which in no way should be a cliché. Furthermore, it may not be one of the “copy-paste” models of democratic authority. Currently, citizens of B&H are completely suspended (de facto, there are only citizens of entities). In the Federation of Bosnia and Herzegovina Serbs are suspended, while in the Republika Srpska, Bosniacs and Croats cannot equally participate in the decision-making process. An unfinished process of implementation of the Dayton Agreement and, in particular, Annex 4 (the Constitution of B&H), whose provisions permit discrimination against the citizens of Bosnia and Herzegovina (the impossibility of the realization of the principle of equality in the exercise of universal suffrage), as well as the non-application of the Decision of the European Court of Human Rights contributes and is conducive to further segmentation of Bosnian society.


Author(s):  
Irina Ciacir ◽  
◽  
Ecaterina Subina ◽  

2020 is a year of global change. The spread of the COVID-19 virus was an impetus for transformation. The entire globe confronts impediments hard-to-anticipate, but who endangers people’s life. This article refers to the transparency of the decision-making process in the pandemic period. Also, it is explained the communication problems that can appear in complicated situations between the public administration and the citizen. Both the authorities of the European Union, in general, and of the Republic of Moldova, in particular, encounter social problems, which must be resolved in a very short period. Many decisions must be made promptly and unforeseen. It is important that this process does not affect the quality of public services provided and does not infringe on the rights of citizens. Thus, the decision-making process must be transparent and accessible to citizens


2020 ◽  
Vol 67 (4) ◽  
pp. 1141-1154
Author(s):  
Lidija Barjaktarović ◽  
Renata Pindžo ◽  
Snežana Konjikušić

The subject of the research is capital budgeting practices in Serbian agribusiness companies. The research aim is to determine whether there are differences in decision-making regarding capital budgeting depending on the ownership structure in those industries. The research was conducted in the first half of 2019, on a sample of 76 companies (from 122 targeted/i.e. 62.33% respondent rate) operating in the Republic of Serbia. Descriptive statistics and the Kruskal-Wallis test were used in the data analysis. IBM SPSS 20.0 statistical package was used for data processing. Research results confirmed that capital budgeting practices in the Serbian agribusiness companies can be considered as developed. Furthermore, there is a difference in the capital budgeting practices in the Republic of Serbia depending on the ownership of the analyzed sampled companies.


2019 ◽  
Vol 19 (171) ◽  
Author(s):  
Deniz Igan ◽  
Thomas Lambert

In this paper, we discuss whether and how bank lobbying can lead to regulatory capture and have real consequences through an overview of the motivations behind bank lobbying and of recent empirical evidence on the subject. Overall, the findings are consistent with regulatory capture, which lessens the support for tighter rules and enforcement. This in turn allows riskier practices and worse economic outcomes. The evidence provides insights into how the rising political power of banks in the early 2000s propelled the financial system and the economy into crisis. While these findings should not be interpreted as a call for an outright ban of lobbying, they point in the direction of a need for rethinking the framework governing interactions between regulators and banks. Enhanced transparency of regulatory decisions as well as strenghtened checks and balances within the decision-making process would go in this direction.


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