11 research outputs found

    Evaluation and financial risk management of urban renewal projects in partnership with public and private

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    Financing plays an important role for renewal of old city building is find suitable financing plan. A proper financial management in one hand has a direct relationship with project main factors such as: time, cost and quality of the project, and on the other hand, achieving project goals requires a comprehensive insight of project, stockholders as well as other relative situation in regard with the project. Considering the complication of execution such projects and the number of shareholders, one of the best attitudes towards the project management is risk management. This research is a qualitative and practical, which reviews the effects of project management factors on financial return of urban renewal sachem. The required information gained through a survey and via questionnaire and interviews with specialists. This article first describes the public private financial partnership and then, based on the results gained from a case study done on one of the renewal schemes in Mashhad metropolitan areas. Next, it identifies and evaluates of positive and negative risks, which lead to threats and opportunities will be performed and will attempt to respond the existent risks. Finally, we provide a framework for the risk assessment of the housing units

    An econometrics method to estimate demand of sugar

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    Sugar is one of the strategic goods in the basket of households in each country and it plays an important role in supplying the required energy. On the other hand, it is one of the goods, which Iranian government is about to change its subsidy strategies. To design useful sugar subsidy strategies, it is necessary to know sugar position in the basket of households and be familiar with households' sugar demand or consumption behavior. This research estimates sugar demand for Iranian households by using time series of 1984-2008, which is taken from central bank of Iran. In this paper, first independent and dependent variables of household sugar demand model are chosen based on the literature review and theory of demand. Then, sugar demand is estimated by OLS technique and linear regression. The preliminary statistical observations such as Durbin-Watson, F statistic and R2 indicate that the regression is admissible. The results seem plausible and consistent with theory and show that sugar demand in Iranian households is associated with household expenditure, relative sugar price, family size and indicate that demand of sugar is affected during the war time. The results also show the income elasticity is 0.8 and price elasticity is -0.2 which means sugar is essential good for Iranian households and is inelastic to price

    An empirical study to determine the critical success factors of export industry

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    Exporting goods and services play an important role on economy of developing countries. There are many countries in the world whose economy is solely based on exporting raw materials such as oil and gas. Many believe that countries cannot develop their economy as long as they rely on exporting one single group of raw materials. Therefore, there is a need to help other sectors of industries build good infrastructure for exporting diversified products. In this paper, we perform an empirical analysis to determine the critical success factors on exporting different goods. The results are analyzed using some statistical non-parametric methods and some useful guidelines are also suggested

    Integrated end-to-end MVA viral vector production: Perfusion culture shows economical advantage over batch culture

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    Modified Vaccinia Ankara (MVA) virus is a promising viral vector for gene therapy. Several pre-clinical and clinical trials are currently being conducted with MVA as a live vector vaccine against COVID-19, Ebola disease, influenza or various types of cancers. For most applications, a large amount of the vector will be required (\u3e108 infectious virus per dose). High cell concentrations are favorable for developing high-yield MVA vector production systems. Efficient production of MVA in an avian suspension cell line (AGE1.CR.pIX) cultivated in perfusion mode with a membrane-based cell retention system has previously been demonstrated. However, up to now a direct harvest through the membrane for a continuous integrated process was not feasible. Please click Additional Files below to see the full abstract

    Evaluation and financial risk management of urban renewal projects in partnership with public and private

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    International audience(CEDH, 2e section, 25 juin 2013, n° 30812/07, Trévalec c/ Belgique, D. 2013. 2139, obs. L. Sadoun-Jarin, note O. Sabard ; ibid. 2106, point de vue P.-Y. Gautier ; ibid. 2658, obs. M. Bacache, A. Guégan-Lécuyer et S. Porchy-Simon ; RTD civ. 2013. 807, obs. J.-P. Marguénaud

    Management Science Letters An empirical study to measure the relative efficiencies of training organizations using data envelopment analysis

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    This paper presents an empirical study on measuring relative efficiencies of test drive educational organizations using data envelopment analysis. The study uses a Delphi method to determine the most important input/output factors and then gathers the actual data for all units located in an Iranian province called Zanjan. The results of the implementation of the DEA method are compared for different periods of the recent year and they are analyzed. We perform the DEA implementation for two separate regions, one for the units located inside the city and the other for the units located in the rural area. The output results of both methods are compared and the results are discussed in details

    Determination and evaluation of the parameters influencing the virtual educational costs

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    E-learning has recently attracted many people specially those who cannot attend traditional educational programs for different reasons such as busy schedule, long distance, etc. There is also a growing interest among many public universities to develop such programs in addition to their regular business activities. The primary question is to know how much a program cost and what is the most important factors affecting the cost of e-learning. In this paper, we present an empirical study the measure the effects of different items on the cost of e-learning programs. The proposed study of this paper gathers the necessary cost components of three governmental universities located in city of Tehran/Iran. We choose ten different cost items for our analysis and using some statistical test determine the most important ones. The preliminary study of this paper indicates that seven cost items play essential role on determining the cost of e-learning, which includes utilities, internet connection and network, employee payment, software & licensing, payments of instructors and their assistants, hardware equipments and other overhead expenditures. This could help us determine the precise cost of e-learning using activity cost method

    The effect of Risk Aversion on the Dynamic Selection of the Optimum Portfolio

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    Economic agents are constantly making decisions to maximize their expected utilities while accepting some risks. The question is that, how the efficient portfolio of the assets in a specific level of risk is formed to maximize the individual’s utility?             To model the behavior of decision maker, economists and financial mathematicians consider both the variables which affect individual’s decision making behaviour, and the methods to include real world uncertainties. In the model presented in this paper the decision maker chooses between two types of assets: risky and risk-free. The returns on these two types are different and the utility of the decision maker is a function of his wealth (consisting of his initial wealth and the returns of his portfolio of the assets). The comparison between the results of financial modeling with decision-making theories under uncertainty within microeconomic literature reveals the impacts of three factors: degree of risk-aversion, relative return of assets and volatility of risky assets prices, on optimum portfolio allocation

    Dynamic Pricing of a Web Service in an Advance Selling Environment

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    Consider a web service with different quality of service levels where users may purchase their required web service through a reservation system. The service provider adjusts prices of web service classes over a prespecified time horizon to manage demand and maximize profit. Users may cancel their services as long as they pay a penalty. One of the important challenges for service providers is capacity limitation of the resources employed in offering the web service. Thus, taking this important proposition into account makes pricing strategies considered by the provider has more credit. Another important factor in determining pricing strategies discussed in the present paper is the market influence which can increase or decrease the price that the provider offers. This paper develops a continuous time optimal control model for identifying pricing strategies for the web service classes. We study the optimality condition of the considered model based on maximum principal and propose an algorithm to obtain the optimal pricing policy. Moreover, we perform numerical analyses to evaluate the effect of some parameters on control and state variables and objective function. In addition, we compare the proposed algorithm with genetic algorithm (GA) and simulated annealing (SA) available in Matlab
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