Search for: natural-resources
0.008 seconds
Total 38 records

    Exploring Economic Performance of Resource-Rich Countries by Separating their Political Systems

    , M.Sc. Thesis Sharif University of Technology Jahandideh, Mahsa (Author) ; Nili, Masoud (Supervisor)
    Economic performance of resource rich countries is related to their political systems. In this research, consistent to Hosseini (1388), we develop a theoretical model in which we classify the political systems of those countries to four systems based on corruption, myopic behavior of the incumbent, ideological bias of people, and the popularity shocks in elections. We show that in a fixed institutional framework, democracy leads to higher welfare for people and better economic performance. However, in a society with low corruption, high political convergence, and low popularity shocks both democracy and dictatorship maximize the social welfare in the model  

    Investigating the impacts of global environmental evolutions on long-term planning of natural resources in Iran

    , Article International Journal of Environmental Research ; Volume 7, Issue 3 , 2013 , Pages 561-568 ; 17356865 (ISSN) Javaherian, Z ; Maknoon, R ; Abbaspour, M ; Moharamnejad, N ; Sharif University of Technology
    The main objective of the current study is to investigate the impacts of environmental evolutions at global scale on Iran's environmental planning. Thereby, all political movements towards solving environmental issues in Iran were accurately reviewed to find out the impressibility of the events by the global environmental evolutions. The findings indicated that Iran has joined the conventions and protocols with a time lag. During the period 1948-1993, the mean time lag between holding an international convention until its approval in Iran was eleven years while from 1994 to 2007, the average lag time was shortened to four years. As the results show, attention to environmental issues was... 

    Subsidy and natural resource curse: evidence from plant level observations in Iran

    , Article Resources Policy ; Volume 52 , 2017 , Pages 90-99 ; 03014207 (ISSN) Rahmati, M. H ; Karimirad, A ; Sharif University of Technology
    Using plant level panel data of manufacturing firms in Iran from 2003 to 2013, we test the Dutch disease predictions, including the impact of a rise in oil prices on intensive and extensive margins of trade. Our findings indicate that during periods of high oil prices domestic currency appreciates, but contrary to resource curse theories, domestic firms export more, and new firms enter foreign markets. We reconcile this paradox by proposing a new channel, which we call “subsidy disease.” Despite rising oil prices, the government of Iran kept domestic energy prices at low levels, which increased the implicit subsidy accruing to energy intensive firms. In effect, these firms gain a competitive... 

    The Effect of Political Systems on Economic Performance in Resource-Rich Countries

    , M.Sc. Thesis Sharif University of Technology Hosseini, Mohammad (Author) ; Nili, Farhad (Supervisor) ; Nili, Masoud (Co-Advisor)
    In this research, the effect of political system on economic performance of resource abundant countries is studied. We use political economy litreture to develop a theoritical model in this issue. Here, the politcal systems are divided to democracy and dictatory and in each of them other institutional variable will be introduced. Policy indicator is based on the difference between social welfare in each situation and its optimal amount when maximized. We show that if democracy does not come with high accountability it reduces social welfare more than dictatory. Also, if politician are myopic, democracy aggravates economic performance in those countries. In addition, easy access to income... 

    The Effect of Oil Abundance on the Relationship between Growth and Inequality

    , M.Sc. Thesis Sharif University of Technology Davoodalhosseini, Mohammad Reza (Author) ; Nili, Farhad (Supervisor)
    Empirical results in this research show that oil abundance in an economy tends to increase income inequality. Three mechanisms: Trade, civil liberties and imperfections of financial markets can explain this empirical finding, with the first being an alternative explanation for the Dutch disease. Besides, due to the influence it could have on parents underestimating the future costs of their children and because of the rents it produces, Oil abundance could reduce the opportunity cost of having children which results in a higher fertility rate. Moreover, empirical results confirm the negative relation between inequality and growth through the fertility mechanism. Therefore apart from... 

    Political Economics of Resource Curese with Respect to State Owned Enterprises

    , M.Sc. Thesis Sharif University of Technology Farhoodi, Abdollah (Author) ; Nili, Masoud (Supervisor)
    The low performance of the natural resource economies in terms of economic growth has been considered in different fields of social sciences recently. Variety of policies suggested escaping from this phenomenon with respect to different standpoints. In this research, based on a theoretical approach, we tried to model the leader and people’s behavior in resource rich countries with political economics viewpoint and rational players. The contribution of this research is the introduction of state owned enterprises (SOE) as a basis to resource curse, which has not been considered precisely before. In our model, we have two players (leader, people), two alternatives for resource allocation... 

    Proactive admission control and dynamic resource management in SDN-based virtualized networks

    , Article 8th International Conference on the Network of the Future, NOF 2017, 22 November 2017 through 24 November 2017 ; Volume 2018-January , 2018 , Pages 46-51 ; 9781538605547 (ISBN) Shakeri, S ; Parsaeefard, S ; Derakhshani, M ; Sharif University of Technology
    Institute of Electrical and Electronics Engineers Inc  2018
    Network virtualization is a promising approach in which common physical resources are shared between service providers. Due to the substrate network limitations such as maximum available memory of each node of the substrate network as well as different service priorities and requirements, resource management in this setup is essential. On the other hand, SDN is bringing a considerable flexibility in resource management by introducing a centralized controller which can monitor all the substrate network states. In this paper, we propose a proactive admission control and dynamic resource management in SDN-based virtualized network in which the number of accepted high-priority virtual network... 

    On the Effects of Change in the Ownership of Natural Resource Revenues on Government Performance Enhancement and People Welfare

    , M.Sc. Thesis Sharif University of Technology Mohsenzadeh Kermani, Amir Reza (Author) ; Nili, Masoud (Supervisor)
    The poor economic performance of natural resource abundant countries has been studied for a long time and in order to alleviate this problem some different solutions are suggested by economists. One stream among these solutions are those focusing on the distribution mechanism of natural resource revenues and the ownership of these resources. In this study, it is intended to address the effect of change in the ownership of natural resources on politicians’ behavior and people welfare by using political economy approach. Also the optimal share of people from natural resources as a function of political and economic institutions is discussed. In this study, it is shown theoretically that under... 

    The Impact of Oil Dependence on Institutional Quality

    , M.Sc. Thesis Sharif University of Technology Bakhshiani, Reza (Author) ; Nili, Farhad (Supervisor) ; Abedini, Javad (Supervisor)
    Institution covers wide range of rules, laws and policies. Two bodies of literature around institutions and resource curse have evaluated institutional quality by limited indices. In addition, although different institutions have different effects on economy, the literature hasn’t classified different kinds of institution. Furthermore, resources can affect institutions in different ways. This research has been surveyed the impact of resource dependence on institutional quality. Institutions that regulate relation between governors and citizens were named governmental institutions. Institutions that regulate the relation of citizens were named nongovernmental institutions. Governmental... 

    The Effects of Oil Wealth on the Protection of Property Rights in the Oil Countries

    , M.Sc. Thesis Sharif University of Technology Dashtimanesh, Mohammad Javad (Author) ; Nili, Masood (Supervisor)
    Using a panel dataset of oil discoveries and oil prices, this thesis studies the effect of oil wealth on protection of property rights in 56 oil countries between 1995 to 2018. Controlling for year fixed effects and country fixed effects, We show that this association is affected by the ownership of oil in this countries. In countries that government is owned all the oil industry, a strong correlation is observable between oil wealth and property rights policies. But in countries that private ownership on oil is legal and the government is not monopolist in the oil ownership, this correlation is insignificant. This results are robust with controlling the GDP per capita, political regime... 

    Economic Misconceptions and Growth Destrcution in Resource-abundant Democracies

    , M.Sc. Thesis Sharif University of Technology Alemi, Mohammad Javad (Author) ; Nili, Masoud (Supervisor)
    This paper develops a theoretical model based on economic misconceptions to explain the stylized facts of unsatisfactory long-term economic growth rates. Should the economic agents lack sufficient public understanding of economics, office-seeking politicians can take advantage of the situation and adopt populistic policies to get elected into office. Undermined economic growth is the price society pays for its ignorance. This mechanism is most relevant in democratic resource-abundant countries suffering from weak institutions. That is because natural resource price fluctuations make it more challenging to distinguish politicians’ performance and exogenous economic shocks, translating... 

    Availability modeling of grid computing environments using SANs

    , Article 2011 International Conference on Software, Telecommunications and Computer Networks, SoftCOM 2011, 15 September 2011 through 17 September 2011, Split, Hvar, Dubrovnik ; 2011 , Pages 403-408 ; 9789532900262 (ISBN) Entezari-Maleki, R ; Movaghar, A ; Sharif University of Technology
    In this paper, the availability of the Resource Management System (RMS) and computational resources distributed within grid computing environments is studied. Since the RMS acts as a heart of the grid environments, the unavailability of this system can render the entire environment to the inoperable phase. Furthermore, the unavailability of the grid resources may result in degradation of the performance of the grid. Therefore, considering the great importance of the availability issue in grid computing environments, the Stochastic Activity Networks (SANs) are exploited to model and evaluate the availability of grid environments. The proposed SAN models the failure of the resource management... 

    Resiliency via integrated coastal management in Kish Island

    , Article Scientia Iranica ; Volume 23, Issue 4 , 2016 , Pages 1708-1718 ; 10263098 (ISSN) Pak, A ; Majd, F ; Mohammadi, M ; Sharif University of Technology
    Sharif University of Technology  2016
    Small islands around the world face various hazards such as sea-water level rise, hurricanes, human activities over pressure, environmental degradation, and pollution. Resiliency is a critical feature that has to be maintained in these sensitive and vulnerable areas. This paper focuses on the importance of Integrated Coastal Management (ICM) in increasing the level of resiliency in small islands. Integrated Coastal Zone Management (ICZM) has been recommended for practice by United Nations 1992 Rio Conference resolution to conserve the valuable natural resources of the coastal areas around the globe and improve their deteriorating environmental conditions. Integrated coastal management plan... 

    Density-based global sensitivity analysis of sheet-flow travel time: kinematic wave-based formulations

    , Article Journal of Hydrology ; Volume 559 , April , 2018 , Pages 556-568 ; 00221694 (ISSN) Hosseini, S. M ; Ataie Ashtiani, B ; Simmons, C. T ; Sharif University of Technology
    Elsevier B.V  2018
    Despite advancements in developing physics-based formulations to estimate the sheet-flow travel time (tSHF), the quantification of the relative impacts of influential parameters on tSHF has not previously been considered. In this study, a brief review of the physics-based formulations to estimate tSHF including kinematic wave (K-W) theory in combination with Manning's roughness (K-M) and with Darcy-Weisbach friction formula (K-D) over single and multiple planes is provided. Then, the relative significance of input parameters to the developed approaches is quantified by a density-based global sensitivity analysis (GSA). The performance of K-M considering zero-upstream and uniform flow depth... 

    A clearing mechanism for joint energy and ancillary services in non-convex markets considering high penetration of renewable energy sources

    , Article International Journal of Electrical Power and Energy Systems ; Volume 129 , July , 2021 ; 01420615 (ISSN) Goudarzi, H ; Rayati, M ; sheikhi, A ; Ranjbar, A. M ; Sharif University of Technology
    Elsevier Ltd  2021
    This paper introduces a day-ahead clearing model for the simultaneous energy and ancillary services market in high penetration of renewable energy sources (RESs) considering fast-start generators’ behaviors as non-spinning reserve providers. For managing the uncertainties of RESs, the system operator takes the advantages of the stochastic model of security-constrained unit commitment (SCUC) problem considering plausible scenarios. The non-convexities due to the startup costs, minimum power outputs, and commitment variables make the stochastic SCUC problem and market-clearing non-convex. Meanwhile, with traditional market-clearing methods for energy and ancillary services based on marginal... 

    Political Economy of White Elephants in Oil Exporting Countries

    , M.Sc. Thesis Sharif University of Technology Raeesi, Navid (Author) ; Nili, Masoud (Supervisor)
    The procyclical behavior of public investment expenditure in OECs is one of the main channels through which the blessing of the natural resource abundance turns into a curse. The focal issue about the public investment expenditures in OECs is the misallocation and the inefficiency of these expenditures which often appear in the form of white elephants- i.e. government investment projects with large scale and high social/political prestige for the politicians implementing theme, but with negative economic return- especially in the oil booms. Moreover, the imprical evidence shows that the efficiency of public investment management in OECs is positively and significantly correlated with the... 

    Two-timescale QoS-aware cross-layer optimisation for HetNets with flexible backhaul

    , Article IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, 30 August 2015 through 2 September 2015 ; Volume 2015-December , Aug , 2015 , Pages 1072-1076 ; 9781467367820 (ISBN) Omidvar, N ; Liu, A ; Lau, V ; Zhang, F ; Tsang, D. H. K ; Pakravan, M. R ; Sharif University of Technology
    Institute of Electrical and Electronics Engineers Inc  2015
    One of the main advantages of utilizing flexible backhaul in future HetNets is that it can provide better user experience through flexible resource allocation. For this purpose, it is important to provide the required quality of service (QoS) in such networks. In this paper, we consider the problem of cross-layer radio resource management in HetNets with flexible backhaul which guarantees minimum total transmit power of BSs as well as the average end-to-end data rate requirement of each data flow. The problem is formulated as a two-timescale stochastic optimisation, where the long-timescale control variables are flow control, routing control and interference mitigation, while the... 

    Two-timescale radio resource management for heterogeneous networks with flexible backhaul

    , Article 58th IEEE Global Communications Conference, GLOBECOM 2015, 6 December 2015 through 10 December 2015 ; 2015 ; 9781479959525 (ISBN) Omidvar, N ; Liu, A ; Lau, V ; Zhang, F ; Tsang, D ; Pakravan, M. R ; Sharif University of Technology
    Institute of Electrical and Electronics Engineers Inc  2015
    In this paper, we focus on the problem of hierarchical cross- layer dynamic resource allocation for heterogeneous networks with flexible backhaul. We formulate the radio resource management problem as a two timescale non-convex stochastic optimisation problem which jointly optimizes flow control, routing control, interference mitigation and link scheduling in order to maximize a generic network utility. We propose an iterative hierarchical control structure where the long-term controls are adaptive to large scale fading and the short-term control is adaptive to the local CSI within a pico or macro BS, to find the optimal solution. The proposed solution benefits from low complexity and... 

    Cross-layer QSI-Aware radio resource management for HetNets with flexible backhaul

    , Article 2016 IEEE Wireless Communications and Networking Conference, 3 April 2016 through 7 April 2016 ; Volume 2016-September , 2016 ; 15253511 (ISSN) ; 9781467398145 (ISBN) Omidvar, N ; Zhang, F ; Liu, A ; Lau, V ; Tsang, D ; Pakravan, M. R ; Sharif University of Technology
    Institute of Electrical and Electronics Engineers Inc 
    In this paper, we consider the problem of cross-layer radio resource management in heterogeneous networks (HetNets) with flexible backhaul, which aims at minimizing the total transmit power of base stations (BSs) while guaranteeing the average end-To-end data rate requirement of each data flow. We formulate the problem as a two-Timescale stochastic optimisation, where the long-Timescale control variables are flow control, routing control and interference coordination, while the short-Timescale control variable is instantaneous beamforming within each cell. Using a stochastic cutting plane (SCP) method, we propose a cross-layer queue-state information (QSI) aware radio resource management... 

    A novel solution for manufacturing interoperability fulfillment using interoperability service providers

    , Article 50th CIRP Conference on Manufacturing Systems, CIRP CMS 2017, 3 May 2017 through 5 May 2017 ; Volume 63 , 2017 , Pages 774-779 ; 22128271 (ISSN) Delaram, J ; Fatahi Valilai, O ; Sharif University of Technology
    Elsevier B.V  2017
    The cloud manufacturing paradigm has been known as one of the best solutions for today's competitive manufacturing environments. This paradigm insists on using a manufacturing service oriented approach for fulfilling the manufacturing enterprise resource management by the access to global availability of manufacturing services. The proposed service oriented approach covers a wide area of manufacturing resource management from infrastructures to platforms and applications. However, due to wide global distributions of manufacturing clouds, the service oriented architectures which are designed in the clouds cannot communicate with each other. This is mainly due to concentration of cloud...