scholarly journals Definição do momento ótimo para contratação do financiamento habitacional usando simulação Monte Carlo

2021 ◽  
Vol 1 (53) ◽  
pp. 68
Author(s):  
Kascilene Machado ◽  
Warley Henrique Carvalho Pereira ◽  
Kíssila Samila de Oliveira Meireles
Keyword(s):  
Monte Carlo ◽  
Statistical Data ◽  
Housing Finance ◽  
Cost Of Debt ◽  
Simulation Tool ◽  
Simulation Techniques ◽  
Proposed Model ◽  
The Cost

<span class="fontstyle0">Statistical data show that housing finance has been in wide demand as an option for the purchase of real estate and that the level of default and the number of properties auctioned have also increased significantly in recent years.. These data show that the decision to purchase the financed home is not always carried out in an organized way, impacting on high costs and the difficulty in meeting financial commitments made by the borrower. In this context, the objective of this research is to develop a simulation tool, using Monte Carlo simulation techniques, to help consumers make decisions regarding long-term financing in the acquisition of properties. A large number of simulations, using a real-case study, were carried out to verify the validity of the proposed model, allowing the evaluation the behavior of debt costs. The results obtained in this research indicate that the cost of debt can be reduced by more than 40% if the requester chooses to postpone the financing for a few years in order to obtain a greater financial amount to be given as input, reducing the outstanding balance and the financing period.</span><br /><br />

scholarly journals A Scorecard to Detect Financial Leverage Profitability

2018 ◽  
Vol 13 (3) ◽  
pp. 244
Author(s):  
Laura Broccardo ◽  
Luisa Tibiletti ◽  
Pertti Vilpas
Keyword(s):  
Net Present Value ◽  
Economic Value ◽  
Weighted Average ◽  
Cost Of Debt ◽  
Corporate Management ◽  
External Financing ◽  
Present Value ◽  
Financial Decisions ◽  
Proposed Model ◽  
The Cost

This study investigates how balancing internal and external financing sources can create economic value. We set a financial scorecard, consisting of the Cost of Debt (COD), Return on Investment (ROI), and the Cost of Equity (COE). We show that COE should be a cap for COD and a floor for ROI in order to increase the Net Present Value at Weighted Average Cost of Capital and the Adjusted Present Value of the levered investment. However, leverage should be carefully monitored if COD and ROI go off the grid. Situations where leverage has the opposite effect on value creation and the Equity Internal Rate of Return are also discussed. Illustrative examples are given. The proposed model aims to help corporate management in financial decisions.

Creating continuous areas of old forest in long-term forest planning

2000 ◽  
Vol 30 (11) ◽  
pp. 1817-1823 ◽  
Author(s):  
Karin Öhman
Keyword(s):  
Net Present Value ◽  
Problem Formulation ◽  
Core Area ◽  
Northern Sweden ◽  
Present Value ◽  
The Core ◽  
Long Range Planning ◽  
The Cost

Harvest activities tend often to create landscapes where the old forest is fragmented into isolated patches that provide marginal conditions for species that inhabit forest interiors. This paper presents a long-range planning model designed to maximize the net present value and to create continuous patches of old forest. In this model, the spatial structure of old forest is controlled by core area and edge habitats. Core area is defined as the area of old forest that is free of edge effects from surrounding habitats. The core area requirement is set to a fixed value for each of a number of time periods, whereas the area of edge habitats, which should be as small as possible, is weighted against the net present value. The model is applied in a case study to an actual landscape consisting of 755 stands of forest in northern Sweden and solved using simulated annealing. The results show that distinct continuous patches of old forest are created when both a core area requirement and consideration of the amount of edge habitats are included in the problem formulation. The cost of creating continuous areas of old forest was found to be significant.

AHP Approach for Supplier Selection in a Polyamide Fiber Plant in Supply Chain Management

2011 ◽  
Vol 299-300 ◽  
pp. 1252-1255
Author(s):  
Hui Jin ◽  
Chun Ling Liu ◽  
Xing Yu Wang
Keyword(s):  
Supply Chain ◽  
Supplier Selection ◽  
Supplier Evaluation ◽  
Proposed Model ◽  
Polyamide Fiber ◽  
Fiber Plant ◽  
And Performance ◽  
Supplier Selection Problem

Supplier evaluation and selection is one of the most important components of supply chain, which influence the long term commitments and performance of the plant. Supplier selection is a complex multi-criteria problem which includes both qualitative and quantitative factors. In order to select the best suppliers it is essential to make a trade off between these tangible and intangible factors some of which may conflict. In this paper, an AHP-based supplier selection model is formulated and then applied to a real case study for a polyamide fiber plant in China. The use of the proposed model indicates that it can be applied to improve and assist decision making to resolve the supplier selection problem in choosing the optimal supplier combination.

Corporate Sustainability

2016 ◽  
pp. 291-306
Author(s):  
Taranjit Kaur
Keyword(s):  
Corporate Social Responsibility ◽  
Social Responsibility ◽  
Corporate Sustainability ◽  
Sustainability Reporting ◽  
Future Generation ◽  
Major Stakeholder ◽  
Corporate Social ◽  
The Cost

Everyone talks about corporate social responsibility when there is discussion on the profitability issue. As the society is the major stakeholder in any corporate, it is natural duty of the concerned company to full fill its responsibility towards the society. There are many issues which can be included in the corporate social responsibility but the question arise is that what will happen if a company don't focus on sustainability. The obvious answer is that without sustainability, the fulfilment of certain types of social responsibility activities by the company will not provide the true advantage of the CSR to the society. It can be put in this way that at the cost of long term benefits of the society, the short term benefits are provided if sustainability is sacrificed. The future generation will cry like anything for the loss we are making today. This paper is aimed to discuss the Corporate Sustainability Reporting through case study of Tata Consultancy Services (TCS).

E-Impresa

2010 ◽  
pp. 470-485
Author(s):  
Habib Sedehi
Keyword(s):  
Sustainable Growth ◽  
Strategic Decisions ◽  
Whole Process ◽  
On Line ◽  
Business Game ◽  
Break Even Point ◽  
The Cost ◽  
The Web

Electronic commerce, marketing on line, and network economy are today’s keywords of (possible) success. But how many managers effectively know about the cost and benefits of starting to sell their products and services through the Web? How much they should invest at the beginning and how long does it takes to have a break-even point of their investment? In order to give support for better understanding the process of the Web marketing and to have more elements to decide to “dive” or not in this virtual world a System Dynamics (SD) model (Forrester J.W. 1961, 1971, 1980), has been developed. The model has the aim to support strategic decisions for SME involvement in e-Commerce, pointed out to guarantee sustainable growth and medium-long term success. The project e-Impresa1 analyses the whole process of the investment in building and maintaining a web site, taking into account the main variables of E-commerce. Through a case study, a SD business game model has been developed. The model gives the opportunity to users to evaluate different what-if analysis through the simulation period time (2 years) at each model step time (4 weeks). This chapter will explain the overall architecture of the model and will present some results of use of the model in different conditions.

Smart Grid-Integrated Electric Vehicle Charging Infrastructure

2022 ◽  
pp. 1-24
Author(s):  
Isa S. Qamber ◽  
Mohamed Y. Alhamad
Keyword(s):  
Electric Vehicle ◽  
Fossil Fuels ◽  
Electrical Energy ◽  
Charging Infrastructure ◽  
Electric Vehicle Charging ◽  
Proposed Model ◽  
Rotary Motors ◽  
The Cost ◽  
Efficiency And Reliability

The movements for any type of electric vehicle (EV) can be powered by wheels or driven by rotary motors. EVs derive their power from various sources, including fossil fuels. In the long term, reducing the cost of electrically powered vehicles (EDV) is seen as an essential ingredient to increase consumer acceptance. In addition, it aims to reduce the weight and volume of EDV. Moreover, the focus is on improving the performance, efficiency, and reliability of the EDV. The development of innovative modules is important when the acceleration of production and marketing needs to be improved. Consumers are looking for the production and transmission of electrical energy. This contributes to a greener environment. One of the most important parts of an EV is its battery. A proposed model presented in this chapter considers several parameters: solar radiation (PV panels), EV backup battery, and main charger. The model allows energy storage to be developed efficiently.

scholarly journals Radio Planning Considerations in TETRA to LTE Migration for PPDR Systems: A Radioelectric Coverage Case Study

2019 ◽  
Vol 9 (2) ◽  
pp. 250 ◽  
Author(s):  
Diego del Rey Carrión ◽  
Leandro Juan-Llácer ◽  
José-Víctor Rodríguez
Keyword(s):  
Radio Communications ◽  
The Real ◽  
Lte Network ◽  
Real Scenario ◽  
The Cost ◽  
Areas Of Interest ◽  
Radio Planning

Transitioning a Terrestrial Trunked Radio (TETRA) network to a Long-Term Evolution (LTE) network in public protection and disaster relief (PPDR) systems is a path to providing future services requiring high radio interface throughput and allowing broadband PPDR (BB-PPDR) radio communications. Users of TETRA networks are currently considering how to deploy a BB-PPDR network in the coming years. This study offers several radio planning considerations in TETRA to LTE migration for such networks. The conclusions are obtained from a case study in which both measurements and radioelectric coverage simulations were carried out for the real scenario of the Murcia Region, Spain, for both TETRA and LTE systems. The proposed considerations can help PPDR agencies efficiently estimate the cost of converting a TETRA network to an LTE network. Uniquely in this study, the total area is divided into geographical areas of interest that are defined as administrative divisions (region, municipal areas, etc.). The analysis was carried out using a radio planning tool based on a geographic information system and the measurements have been used to tune the propagation models. According to the real scenario considered, the number of sites needed in the LTE network—for a specific quality of service (90% for the whole region and 85% for municipal areas)—is a factor of 2.4 higher than for TETRA network.

scholarly journals Low-cost monitoring buoys network tracking biogeochemical changes in lakes and marine environments – a regional case study

2018 ◽  
Vol 90 (10) ◽  
pp. 1631-1646 ◽  
Author(s):  
Alejandro J. Vitale ◽  
Gerardo M.E. Perillo ◽  
Sibila A. Genchi ◽  
Andrés H. Arias ◽  
María Cintia Piccolo
Keyword(s):  
High Frequency ◽  
Low Cost ◽  
Decision Makers ◽  
Shallow Waters ◽  
Global Level ◽  
Temperate Region ◽  
Coastal Marine ◽  
The Cost

AbstractLakes, rivers, estuaries and ocean waters control many important natural functions at the regional-global level. Hence, integrative and frequent long-term water monitoring is required globally. This paper describes the main features and innovations of a low-cost monitoring buoys network (MBN) deployed in a temperate region of Argentina. The MBN was designed to record extended time series at high-frequency, which is of great value for the scientific community, as well as for decision-makers. In addition, two innovative designs belonging to two versions of moored buoys (i.e. shallow waters and coastal marine waters) were presented. It was shown that the cost of either of two versions of the buoy is low, which can be considered as the main advantage.

Impact of Residential and Public Charging Stations of Electric Vehicles on Distribution System by Stochastic Simulation

2015 ◽  
Vol 1092-1093 ◽  
pp. 375-380
Author(s):  
Suthida Ruayariyasub ◽  
Sompon Sirisumrannukul ◽  
Suksan Wangsatitwong
Keyword(s):  
Monte Carlo ◽  
Electric Vehicles ◽  
Distribution System ◽  
Stochastic Approach ◽  
Local Distribution ◽  
Battery Charging ◽  
Proposed Model ◽  
Charging Stations ◽  
The Impact

This paper investigates the impact of electric vehicles battery charging on the distribution system load if electric vehicles (EVs) are widespread used on roads. Stochastic approach based on a Monte Carlo method is developed in this study to simulate EVs charging load in two cases: 1) normal charge service at home, and 2) quick charge service at public charging stations. To demonstrate the model, a 22-kV distribution system of Pattaya City operated by Provincial Electricity Authority of Thailand (PEA) is employed in the case study. The results indicate the capability of the proposed model to exhibit the impact of EVs charging load on the local distribution system.

scholarly journals Evaluating the Cost of Failure Risk: A Case Study of the Kang-Wei-Kou Stream Diversion Project

Water ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 2881
Author(s):  
Chung-Yuan Liang ◽  
Yuan-Heng Wang ◽  
Gene Jiing-Yun You ◽  
Po-Chun Chen ◽  
Emilie Lo
Keyword(s):  
Monte Carlo ◽  
Boundary Conditions ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Type I ◽  
Original Design ◽  
The Monte Carlo Method ◽  
Potential Risks ◽  
The Cost

For water resource engineering projects, some potential risks that are unclear and difficult to investigate are the most crucial problem for engineers. This study presents a unique case of unknown risks, the Kang-Wei-Kou (KWK) Diversion project, which collapsed due to an unexpected hydraulic jump resulting from uneven regional rainfall. We used HEC-RAS incorporating Monte Carlo simulations for analyzing the potential risks to the original design of the KWK Diversion, concerning boundary conditions. An extreme value type I distribution was selected as the form of probability density function (PDF) to upstream discharge, whereas a normal distribution was selected as the form of PDF to downstream water depth, as boundary conditions. Applying the Monte Carlo method, the analysis revealed that the probability of failure was 7.5%, which was non-negligible and should have been considered in the design plan. This case study indicates that overlooking downstream conditions can lead a major facility to fail, and a stochastic analysis could be a way to find out potential risks. We also applied the cost–benefit analysis to review whether the design plans were appropriately estimated with careful risk based consideration.

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