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The Impact of the OPEC Summit on Iran's Oil Revenue (SVAR-Quantile Hybrid Model Approach)

کلیدواژه: OPEC Statement,Crude Oil Price,Structural Vector Auto Regression Model,Quantitative Method,Iranian Oil Export Revenue

نویسندگان: JAMALI LEILA, MOUSAVI S.N., Aminifard A.

ناشر: مطالعات اقتصادی کاربردی ایران (مطالعات اقتصادی کاربردی) - JOURNAL OF APPLIED ECONOMICS STUDIES IN IRAN

Given the economic dependence of OPEC member countries, including Iran, on crude Oil prices and Export earnings, and considering the fact that one of the factors affecting crude Oil prices is OPEC decisions, in this study, we investigate the impact of OPEC Summit Statements (increase, decrease and s... ادامه

سال:2021

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New Evidence from Oil Rent and Economic Growth in OPEC Countries: An Application of the Hybrid Model of Threshold Markov Switching Model

کلیدواژه: Oil Rent,Economic Growth,OPEC Countries,The Hybrid Threshold Markov Switching Model

نویسندگان: Sedaghat Kalmarzi Haniyeh, FATTAHI SHAHRAM, SOHAILI KIOMARS

ناشر: مدلسازی اقتصادسنجی - JOURNAL OF ECONOMIC MODELING

The relationship between Oil and economic growth is one of the most important issues in the Oil-Exporting countries that the nature of the relationship is important for the economic policymakers of these countries. The purpose of this study was to examine the effects of Oil rent on economic growth i... ادامه

سال:2019

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A New Transformer-Based Hybrid Model for Forecasting Crude Oil Returns

کلیدواژه: Deep learning,Transformer,Forecasting,Brent oil returns,Hybrid Model

نویسندگان: Abdollah Pour Mohammad Mahdi, Hajizadeh Ehsan, Farineya Parsa

ناشر: - AUT Journal of Modeling and Simulation

In recent years, crude Oil has been one of the most important energy sources in the world which impacts political stability and economic security in many countries. Furthermore, Crude Oil price also has a huge influence on the world economic pattern due to being directly utilized in different indust... ادامه

سال:2022

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Investigation of Dissolved Oxygen Levels in the Karun River Water Using Hybrid Models Based on Support Vector Regression

کلیدواژه: Dissolved Oxygen, Support vector regression, Karun, Modeling

نویسندگان: Babaali Hamidreza, Nohani Ebrahim, Dehghani Reza

ناشر: هیدروفیزیک - HYDROPHYSICS

Oxygen plays a vital role in maintaining the balance of life cycles in all ecosystems. Aquatic life is highly sensitive to dissolved oxygen (DO) levels. This necessitates not only continuous monitoring of DO in aquatic environments but also the development of accurate predictive models for future DO... ادامه

سال:2024

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The Potential of the Hybrid Support Vector Regression Model for Predicting River Sediment Discharge (Case Study: Keshkan-Lorestan River)

کلیدواژه: Kashkan, Support vector regression, suspended sediments, Modeling

نویسندگان: Babaali Hamidreza, Nohani Ebrahim, Dehghani Reza

ناشر: هیدروفیزیک - HYDROPHYSICS

Providing a robust and reliable predictive model for river sediment discharge is an essential task for several environmental and geomorphological perspectives, including water quality, riverbed engineering sustainability, and aquatic habitats. In this research, a new hybrid intelligent approach base... ادامه

سال:2023

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Relationship between Stock Liquidity and Risk of Default in Iran’ s Petrochemical Industry and Oil Products Companies: The Roles of Stock Liquidity in Information Efficiency and Corporate Governance

کلیدواژه: Liquidity,Block holders,Default risk,Information efficiency,Corporate governance

نویسندگان: Alimoradi Abbas, Khademvatani Asgar, Gholami Fariba

ناشر: PETROLEUM BUSINESS REVIEW - PETROLEUM BUSINESS REVIEW

The main purpose of this work is to explain why and how the stock liquidity affects the risk of default of petrochemical and petroleum products companies listed on Tehran Stock Exchange (TSE). The study used experimental data and parametric tests to estimate the relationship between stock liquidity ... ادامه

سال:2020

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Investigating the Relationship between Corporate Governance and Export Performance of Companies Accepted in Tehran Stock Exchange

کلیدواژه: Corporate Governance,Export Propensity,Export Performance,Tehran Stock Exchange

نویسندگان: SeyedNezhad Fahim SeyedReza, Behzadinia Sara

ناشر: مدیریت کسب و کار بین المللی - JOURNAL OF INTERNATIONAL BUSINESS ADMINISTRATION

The issue of the conflict of interests between shareholders and managers and the corporate governance mechanism as a solution to reduce the cost of representing it is one of the important issues that has attracted the attention of many researchers and experts due to its impact on corporate performan... ادامه

سال:2020

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Hybrid Analysis of System Dynamics-Agent Based Modeling of Mobile Operators Revenue Case Study: Digital Service entry of MCCI Company

کلیدواژه: Digitalization,Hybrid simulation,System Dynamics,Agent Based Modeling,Platform

نویسندگان: Nadimi Navid, TOLOEI ESHLAGHY ABBAS, AFSHAR KAZEMI MOHAMMADALI

ناشر: مطالعات مدیریت صنعتی - JOURNAL OF INDUSTRIAL MANAGEMENT STUDIES

With the tremendous progress in communications in the world, the transformation and behavior of mobile operators and their digitalization, which in the past were only service providers, as well as the creation of different experiences for customers, is inevitable. The purpose of this study is to cre... ادامه

سال:2021

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Regression Models and Hybrid Intelligent Systems for Estimating Clear-Sky Downward Longwave Radiation in Equatorial Africa

کلیدواژه: reformed modes, particle swarm optimisation, Genetic Algorithm, Adaptive neuro-fuzzy inference system, Artificial Neural Networks

نویسندگان: Obot Nsikan Ime

ناشر: مجله فیزیک زمین و فضا - Journal of the Earth and Space Physics

Modelling downward longwave radiation (DLR) in Equatorial Africa is challenging due to dense cloud cover and data scarcity. In this twofold study, daily cloudless DLR in Ilorin (8° 32′ N, 4° 34′ E), Nigeria, was modelled using two atmospheric factors, namely water vapour pressure and air temperature... ادامه

سال:2023

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Efficiency of Regression, ANN and ANN-algorithm Genetic Hybrid Models in the Evaluation of Wind Erosion

کلیدواژه: Dust,Cla,Organic Matter,MLP,Perceptron

نویسندگان: Ebrahimi Shahin, MOHAMMADI TORKASHVAND ALI, ESFANDIARI MEHRDAD, AHMADI ABBAS

ناشر: حفاظت منابع آب و خاک - JOURNAL OF WATER AND SOil RESOURCES CONSERVATION

Background and Aim: Wind erosion has occurred in a large part of Iran, which has caused land degradation and reduced fertility along with environmental effects. Identifying erosion-sensitive areas can help natural resource and environmental managers in sOil conservation planning. Methods: This study... ادامه

سال:2022

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