Agricultural Economics
S.M. Mojaverian; F. Eshghi; S. Ahangari
Abstract
In addition to imposing a negative impact on public health, Covid-19 has made the world face a huge financial-economic crisis. The worldwide spread of the coronavirus has also affected the volume of transactions and the value of stocks. Since the food market is more affected under crisis conditions, ...
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In addition to imposing a negative impact on public health, Covid-19 has made the world face a huge financial-economic crisis. The worldwide spread of the coronavirus has also affected the volume of transactions and the value of stocks. Since the food market is more affected under crisis conditions, this relationship has been investigated in the stock exchange in the present study. In order to investigate the effect of Covid-19 patients on the stock index value of food industry companies as well as the relationship between risk and stock index value, the official daily data of the Ministry of Health and Medical Education and the Financial Information Processing Center of Iran were collected from March 3, 2021 when the first report was announced, to June 2, 2021. Mean Conditional heteroscedasticityvariance regression models were used in the current study. The statistical model specification tests showed that, first, the assumption of heteroscedasticitywas rejected and the needto useheteroscedasticitymodels was proved. Secondly, the asymmetry assumption was accepted. Model estimation results showed a relationship between the numbers of Covid-19 patients with the stock value of the food industry that was an increase in the number of infected people causes a decrease in the stock value of the food industry. Therefore, like other economic sectors, the capital market was affected by the Covid-19 crisis, and increasing exchange rate as a competing market had a negative effect on the stock price index. Also, considering the relationship between risk and stock value of food industries, as expected, there was an inverse and significant relationship between risk and stock value of food industry companies. In other words, an increase in risk leads to a decrease in the stock price of food industries.
Agricultural Economics
T. Ranjbar; S.M. Mojaverian; Z. Raftani Amiri; S. Shirzadi Laskookalayeh; F. Eshghi
Abstract
There are four interconnected markets, i.e. oilseeds, crude oil, meal and edible oil, in the vegetable oil supply chain. Nowadays, emerging tools in context of information and communication technologies (ICTs) have critical role to develop the supply chain. The purpose of this study is to identify and ...
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There are four interconnected markets, i.e. oilseeds, crude oil, meal and edible oil, in the vegetable oil supply chain. Nowadays, emerging tools in context of information and communication technologies (ICTs) have critical role to develop the supply chain. The purpose of this study is to identify and prioritize actors' preferences for using blockchain technology in the vegetable oil supply chain. For this purpose, we applied the Analytical Hierarchy Process (AHP) method. We interviewed 15 experts, including scientific specialists from adjacent fields and actors in the vegetable oil supply chain, in 2021, to determine the weight of the pairwise comparison matrix. This study evaluated the leading indicators of management improvement, performance improvement, data security, transparency, traceability and visibility, as well as their sub-indicators. The calculation of final weight revealed the most relevance of sub-indices, i.e. increasing inter-organizational trust, compatibility and secure data compatibility, with value of 0.467, 0.043 and 0.043, respectively. The rest of the indicators were also ranked as data immutability, close relationship with suppliers, degree of privacy, forecasting, strategic planning capabilities, reduction of lead time and doing the order on time, respectively. The lack of trust between circles and actors is thus the most crucial obstacle and the largest potential for the new chain in the current supply chain. More training and knowledge of supply chain players on emerging technologies should be put on the agenda to achieve optimal supply chain management. Our results also suggested solutions for advocating for the planning and development of the required infrastructure for the implementation of blockchain technology in Iran.
