• List of Articles commodity

      • Open Access Article

        1 - A numerical method for pricing American option on Mercantile exchange (case study of wheat and soybean)
        Rafi Hassani Moghaadam Hanif Heidari Seyed Rohollah Ahmadi Haji Abadi Abbas Ebrahimi
        American trading options are a way to manage risk in the commodity exchange. This method can be applied before maturity. The valuation of the American trading option in the finite difference method is less complicated than other methods and its calculation time is relat More
        American trading options are a way to manage risk in the commodity exchange. This method can be applied before maturity. The valuation of the American trading option in the finite difference method is less complicated than other methods and its calculation time is relatively short, and also with increasing the sample and increasing the volatility, the parameters are not disturbed. In this research, using the mentioned method, the American option for two products of wheat and rapeseed meal has been done and specified according to the data of Iran Commodity Exchange: A) The value of the American option for wheat and rapeseed meal is very small and negligible from the binomial tree method and the finite difference method calculated using the algorithm presented in the research and coding in MATLAB software. B) The American option value for wheat is higher than soybean meal for both options. The main reason for this is the high volatility (σ) of the base price of wheat stocks compared to rapeseed meal. C) The result of the effect of volatility change and price change on the value of the option, is in favor of volatility change. This indicates the importance of the volatility parameter in the valuation of options. Finally, it is suggested that considering that the American option is capable of applying before maturity ,in the iranian stock exchange for agricultural commodities is presented as one of the tools of risk management . Manuscript profile
      • Open Access Article

        2 - Understanding of Marketing Factors and Their Impact on the Attraction and Maintenance of Internet Business Customers (Case Study: Digi Commodity)
        Mahmood Mohamadi
        The purpose of this study is to identify the factors of gamification and their impact on the attraction and maintenance of Internet business customers in the DJ's online store. The present research is a descriptive-survey research of structural equation model. The stati More
        The purpose of this study is to identify the factors of gamification and their impact on the attraction and maintenance of Internet business customers in the DJ's online store. The present research is a descriptive-survey research of structural equation model. The statistical population in this research includes DJ's online store customers. To estimate the sufficient number of samples in this study, the Cochran model was used for estimating the sample size and the statistical samples were selected using simple random sampling. In the current study, the size of the statistical society is unlimited, and when the size of the statistical society is unlimited, the sample number will be 384 using the Cochran formula. Thus, 384 customers from DJ's store were selected as samples. At first, 11 variables were identified as the main variables of visualization. Then exploratory factor analysis was performed on them. Three main factors of game play, creation of virtual cyber sales and competition were extracted. Then, the effect of these three factors using the structural equation modeling technique Attraction and maintenance of customers were investigated and the results showed that all three factors of play, creation of virtual sales and competition have a significant effect on customer attraction and maintenance, respectively, direct effect of play (β = 0.45), creation of cyber sales (Β = 0.35) and competition (β = 0.20) on attracting and maintaining customers at the level (P <0.01) positive and meaningful Is significant. Manuscript profile
      • Open Access Article

        3 - Strategic factors affecting investment in the freight industry
        Parviz Turani Qazvini Asghar Moshabaki Hamidreza Saeed Nia Ali Badizadeh
        Despite the high importance of the impact of the freight road transport industry on the development of the country's economy, statistical data indicate a low level of large public and private sector investment in this industry in proportion to the unique capacities and More
        Despite the high importance of the impact of the freight road transport industry on the development of the country's economy, statistical data indicate a low level of large public and private sector investment in this industry in proportion to the unique capacities and geostrategic position of Iran. Therefore, the study is going to identify the strategic factors affecting macro-investment in the road freight industry in Iran. This research is of exploratory-applied nature, interpretive-structural paradigm and mixed approach (quality-commercial). Data collection sources in the qualitative phase of articles are upstream documents, interviews and in the quantitative phase are questionnaires; method of data analysis in the qualitative data phase of the article is data-based and systematic using Max QD software and in the quantitative phase is structural equations using LISREL software. Elites and experts in the field of Commodity road transport were identified and selected by snowball method. According to the findings of this study, the most important strategies in the Commodity road transport industry are:1. Improve business climate;2. Do market research;3. Smart making;4. Improving Behavioral Patterns;5. Use of modern technology and equipment;6. Infrastructure development. Manuscript profile
      • Open Access Article

        4 - بررسی عوامل اجتماعی و فرهنگی مؤثر بر گرایش به فرزندآوری در شهر اندیمشک با تأکید برسبک زندگی (مطالعه موردی زنان متأهل کمتر از 35 سال)
        اسحق ارجمند ناهید برومند
        هدف از این پژوهش بررسی عوامل اجتماعی و فرهنگی مؤثر بر گرایش به فرزندآوری در شهر اندیمشک می‌باشد. دیدگاه‌های نوگرایی، بوردیو و گیدنز به عنوان چارچوب نظری انتخاب شدند. روش تحقیق، پیمایشی و واحد تحلیل زنان متأهل کمتر از 35 سال و سطح تحلیل، خرد است. شیوه نمونه‌گیری، خوشه‌ای More
        هدف از این پژوهش بررسی عوامل اجتماعی و فرهنگی مؤثر بر گرایش به فرزندآوری در شهر اندیمشک می‌باشد. دیدگاه‌های نوگرایی، بوردیو و گیدنز به عنوان چارچوب نظری انتخاب شدند. روش تحقیق، پیمایشی و واحد تحلیل زنان متأهل کمتر از 35 سال و سطح تحلیل، خرد است. شیوه نمونه‌گیری، خوشه‌ای چندمرحله‌ای و تصادفی ساده است و حجم نمونه طبق فرمول کوکران 240 نفر می‌باشد. ابزارگردآوری داده‏ها، پرسشنامه است. روش تجزیه و تحلیل داده‌ها، ضریب همبستگی اسپیرمن، پیرسون  و تحلیل رگرسیون چندمتغیره و از نرم‌افزار SPSS استفاده شده است. از اعتبار صوری جهت سنجش اعتبار(روایی) استفاده شد و ضریب آلفای کرونباخ (اعتماد یا پایایی) سبک زندگی و گرایش به فرزندآوری به ترتیب برابر با 711/0 و 714/0 است. نتایج این تحقیق نشان داد که بین ترجیح جنسی و گرایش به فرزندآوری رابطه مثبت و معناداری وجود دارد. بین پیروی از سنت­ها، میزان تحصیلات، سبک زندگی و پایگاه اقتصادی اجتماعی با گرایش به فرزندآوری زنان رابطه منفی و معناداری وجود دارد. اما بین مؤلفه‌های سبک زندگی(اوقات فراغت، مصرف کالای فرهنگی و مدیریت بدن) با گرایش به فرزندآوری زنان رابطه معناداری وجود ندارد. تحلیل رگرسیونی نشان می‌دهد که 3/17 درصد از تغییرات میزان گرایش به فرزندآوری زنان به متغیرهای مستقل(سبک زندگی، پایگاه اقتصادی اجتماعی، ترجیح جنسی و پیروی از سنت­ها) مربوط می‌شود و متغیرهای ترجیح جنسی و پیروی از سنت­ها تأثیر بیشتری در میزان فرزندآوری دارند. Manuscript profile
      • Open Access Article

        5 - Calculating the Sustainable Supply Chain Performance in the Cement Industry (Application of Network Data Envelopment Analysis Model)
        mohammad hossein darvish motevally farhad hosseinzadeh lotfi نقی شجاع Amir Gholam Abri
        The purpose of this paper is to present an appropriate model of data envelopment analysis with a network structure for evaluating the sustainability of the supply chain of cement companies present in the Iranian Stock Exchange during 2014-2015 and determine their produc More
        The purpose of this paper is to present an appropriate model of data envelopment analysis with a network structure for evaluating the sustainability of the supply chain of cement companies present in the Iranian Stock Exchange during 2014-2015 and determine their productivity based on the Malmquist index. This model attempts to introduce sustainability criteria in the supply network with regard to quantitative and qualitative constraints as well as undesirable outputs and Through their measure of supply chain, results are more consistent with reality. Overall, the results indicate a decline in the total productivity of these companies; meanwhile, only 7 companies have maintained their performance and other companies have had a performance fluctuation. Manuscript profile
      • Open Access Article

        6 - Effect of Price Changes in Main Commodity Groups on Rural Households Welfare Based on Linear Expenditure System
        samad hekmati farid soleiman feizi nafiseh saadat
        This paper is to evaluate the effect of price changes in 8 main commodity groups on rural households during 2001-2012. To estimate subsistence level, rural households' data issued by Iranian Statistics Center is used. In addition, by the the results of linear expenditur More
        This paper is to evaluate the effect of price changes in 8 main commodity groups on rural households during 2001-2012. To estimate subsistence level, rural households' data issued by Iranian Statistics Center is used. In addition, by the the results of linear expenditure system, the price and income elasticities is calculated along with the compensation and equivalent variations of Iranian Rural households. The results represent that subsistence level for Rural households is 40637 thousand Rials in the year 2012. Furthermore, the compensation and equivalent variations calculated by of commodity groups indicate the increase of prices in each commodity group of subsistence level will decrease rural households welfare.  Manuscript profile
      • Open Access Article

        7 - Optimal Decision-Making in Fractional Multi-commodity Flow Problem in Uncertainty Environment
        Salim Bavandi Seyed Hadi Nasseri
      • Open Access Article

        8 - The Application of GMDH Neural Network Approachin Forecasting the Price of Soybean Meal in Merchendis Stock Exchange
        علی اکبر باغستانی سعید یزدانی مجید احمدیان
        Abstract Livestock and poultry industry has depended much on soybean meal. This dependence has led to fluctuations in the price of this product and therefore, forces market participants to follow the sensitivity and accuracy. These fluctuations created serious concerns More
        Abstract Livestock and poultry industry has depended much on soybean meal. This dependence has led to fluctuations in the price of this product and therefore, forces market participants to follow the sensitivity and accuracy. These fluctuations created serious concerns about the supply and price of soybean meal. So, this study, using monthly and weekly data of Soybean prices in the exchange market, tried to forecast soybean price. So Soybean Meal price has predicted with neural network GMDH algorithm and ARIMA. The results based on the root mean square error (RMSE), mean absolute error (MAE) and mean absolute percentage error (MPAE) showed that the GMDH algorithm, has a better ability to predict the price accurately.   Manuscript profile
      • Open Access Article

        9 - Risk spillover and dynamics between financial markets, commodity markets and digital currencies with the MGARCH method
        Hamid Mohammadishad Mahdi Madanchi Zaj Amir Reza Keyghobadi
        Risk spillover between financial assets indicates the process of information transfer between markets. Financial markets are related, information created in one market can affect other markets. Risk modeling in different markets and the relationship between these market More
        Risk spillover between financial assets indicates the process of information transfer between markets. Financial markets are related, information created in one market can affect other markets. Risk modeling in different markets and the relationship between these markets are important for forecasting. The purpose of this paper was to investigate the spillover and dynamics of risk between commodity markets, financial markets and digital currencies using the multivariate generalized autoregressive conditional heteroskedasticity (MGARCH) method in the period 2020-2014 with the frequency of daily data. The results of this study indicate the spillover of fluctuations between financial markets and the ratio of dollar to euro and bitcoin had a negative and significant relationship with each other, but other financial assets had a positive and significant relationship in terms of returns and fluctuations. Additionally the stability, the trend of changes in oil and gold prices leads to an important relationship between returns and strengthens the transfer of risk between the foreign exchange market, virtual money, oil and gold. Finally, the research model shows the intensity of contagion between financial markets in the context of small and large shocks, which indicates the existence of asymmetric effects on risk overflow between important financial markets. Manuscript profile
      • Open Access Article

        10 - Study in order to measure nexus and spillover effects from world commodities to Tehran overall stock index: A VAR-BEKK-GARCH Approach
        mohammadbagher mohammadinejad pashaki seyyed jalal sadeghi sharif Mehdi Zolfaghari Mohammad Eqbalnia
        In recent years increase in the speed of information transfer and market connectedness caused markets to convergence and affect each other. Today every shock or volatility from one market affect the other markets. This paper investigates nexus and spillover effect betwe More
        In recent years increase in the speed of information transfer and market connectedness caused markets to convergence and affect each other. Today every shock or volatility from one market affect the other markets. This paper investigates nexus and spillover effect between commodity and Tehran stock index. Time periods of this paper is 12 years starting from the first of 1388 to the last of 1399. We used VAR-BEKK-GARCH Model to measure correlation and spillover effect from two groups of commodities: the first group includes precious metals (gold, silver, platinum and palladium) and second group includes base metals (copper, aluminum, zinc, tin and nickel) toward Tehran overall stock index. Results for the first group (precious metals) show spillover from gold to Tehran overall stock index and volatility spillover from palladium to Tehran overall index. for the second group (base metals) return spillover from copper, tin and zinc to overall index and volatility spillover from aluminum to overall index was revealed. shock spillover was not seen for any groups of precious metals and base metals to overall index. Manuscript profile
      • Open Access Article

        11 - Option Pricing on Commodity Prices Using Jump Diffusion Models
        Tesfahun Berhane Molalign Adam Eshetu Haile