فصلنامه اقتصاد کشاورزی
سال هفدهم شماره 4 (زمستان 1402)

from anyone and they are effective in all aspects of urban life. on the other hand, they provide an environment for cheap recreation and relaxation for the residents and Forthermon, they play a significant role in reducing pollution (sound, heat and air). Among Iranian cities, Tabriz has the lowest number of parks per capita. Also, among the urban areas of Tabriz, district four, in which the construction site of the park is located, is in an unfavorable condition with a per capita green space of 4.92 square meters. If the Tabriz Grand Park project is completed, the area's per capita green space can increase up to 24 meters and the per capita green space of Tabriz city can increase from 6.76 square meters to 11.6 square meters. This research can be effective in introducing the capacities and calculating the hidden values of Tabriz Grand Park so that everyone will be aware of its economic and environmental potentials. Therefore, in this research, the economic and environmental effects of the construction of Tabriz Grand Park have been evaluated.

Having a plan of crop pattern suitable to climatic conditions ensures the sustainability of agricultural production and food security and makes the capacities of each region be used properly, this possibility can be investigated and implemented in the form of policy packages and by designing targeted incentive packages and According to the needs of the farmers and then providing the packages to the farmers, they will stimulate the farmers to implement the cultivation pattern, which can play an effective role in the operationalization of the cultivation pattern in the fields by the farmers. The purpose of this study is Investigating the influencing factors on the willingness of farmers to accept incentive packages for operationalizing the crop pattern proposed by the government in Khorasan Razavi province.In this study, 283 farmers were selected using the available non-random sampling method, and the necessary data and information were collected using a questionnaire and face-to-face interview. Also, using multinomial logit regression, the purpose of the study was examined.The results of the research showed that the variables of The number of household labour, market risk, financial risk, attitude, perceived behavioral control and membership in social institutions have a positive and significant effect on the selection of the management-infrastructure package and the variables of Amount of non-agricultural income, medium-scale farmers, subjective norms, financing willingness, marital status and Enough access to Water have a negative and significant effect. Also, variables of place of residence, The number of household labour, participation and cooperation with agricultural jihad, attitude, perceived behavioral control, cultural factors and membership in social institutions have a positive and significant effect and variables of large-scale farmers, weather risk, subjective norms, behavioral intention, satisfaction with The policy and objectives of the agricultural jihad and the activity and participation in the farmers' group have a negative and significant effect on the choice of a subsidy package.

As one of the top three cherry producing countries in the world, Iran has decisive role in price formation process of this product in the world market. Since how price transmission of agricultural products and their changes are considered as one of the most important indicators for measuring the performance of market and allocation of resources in the economy, The present study investigates the Price transmission of cherry product at wholesale-retail levels in Iran.In this study, considering the high potential of Urmia county in the field of production and export of this product, the price transmission between Takdaneh-Khoshei cherry varieties of this county also has been investigated. And similar to wholesale-retail levels of cherries, in order to achieve the desired results, the error correction model with Engel-Granger approach and Shazam software package was used. The results showed that in the wholesale-retail levels of cherries in the country, the price transmission has been asymmetric both in short and long term. Therefore, it is suggested that policies based on market regulation should not be planned at the same time during periods of price increase and decrease. In other words, in price increase and decrease, the choice of the effectiveness of policy tools should be based on paying attention to this asymmetry in the long term. In the case of cherry price transfer at the levels of Khoshei-Takdaneh varieties, in the short term the price transmission has been asymmetric but in the long term the price transmission has been symmetric. In other words, the downward price adjustments from Khoshei to Takdaneh cherries are transferred faster than its upward adjustments. Based on this, it can be concluded and proposed that the price adjustment of the Khoshei market can ultimately produce the same results in the Takdaneh market. Therefore, there will be no need for different policies to regulate prices in Takdaneh-Khoshei cherry markets.

The aim of the current research is to provide an approach to identify and rank factors affecting quality in the honey supply chain.

Honey supply chain has three levels of supply, processing and distribution and includes four stages of queen breeding, honey production, separation of honey from wax and processing, packaging, storage and distribution. In terms of purpose, the current research is applied and its statistical population is the honey supply chain of West Azerbaijan Province. In terms of the data collection method, it is descriptive-survey and in terms of the subject, it is a field research. The opinions of 6 experts in the beekeeping and honey industry have been used.

In accordance with the proposed approach of the current research, firstly by studying reliable scientific sources and interviewing experts, 20 factors were identified at different levels of the supply chain. Using the fuzzy Delphi method with a spectrum of 5 and two rounds of repetition, 16 main factors were selected by experts. Selected factors were ranked using SWARA method. Finally, based on monitoring the current situation, solutions to improve chain performance at different levels were presented.Conclusion and

pests and diseases, external factors, hydroxymethylfurfural, vegetation, management practices, processing and packaging methods, bee breed, container type and storage conditions, nutrition, harvest season, Harvesting type, hive type, colony population, honey storage containers, climatic conditions and geographical location were prioritized respectively.

The set of actions that are carried out in a business (industry, agriculture, services) in a chain to create value or add value for its customers is called a value chain. The lack of a suitable structure of the kiwi value chain has led to inefficiency in the production to market processes, severe price fluctuations, high waste and insufficient added value in the production to marketing processes of this product in Iran. This problem has also led to the lack of fair distribution of benefits between the players and circles of the Kiwi industry and the dissatisfaction of both sides of the market, i.e. producers and consumers. Considering economic, socio-cultural, environmental and structural components, this research has presented the appropriate model of kiwifruit value chain development in Gilan province. The required data and information have been obtained from documentary, field and questionnaire completion methods, which have been held together with briefing sessions in a collaborative manner with experts and specialists related to all circles of the kiwi industry in Gilan province.. There were 21 people and the required information was extracted in 2019-2020. Analytical Hierarchy Process (AHP) has been used to analyze the data, calculate the weight of criteria and achieve the appropriate structure of Kiwi value chain. The data analysis showed that completing the systematic and appropriate structure of value chain development is the final solution to solve the problems of the kiwi industry and the comprehensive model is the best structure and can guarantee the stability of the chain to a large extent

This study was conducted to investigate the effective components in the fluctuations of the total factor productivity of rainfed wheat production with emphasizing the role of climate change in the important provinces that produce rainfed wheat in Iran.

For this purpose, a True Random Parameter Stochastic Production Frontier (TRP-SPF) Model was estimated using panel data and the obtained coefficients were used for calculating the proposed productivity index .

The results of estimation of True Random Parameter Stochastic Production Frontier (TRP-SPF) Model show that the variables of seed, pesticides, labor force, cultivated area, technological progress, square of air temperature, effective rainfall and square of effective rainfall have a significant and positive effect on the production of rainfed wheat while the air temperature has a negative and significant effect on the production of rainfed wheat. The results of calculating CATFP index of rainfed wheat show the existence of fluctuations in it. The analysis of the contribution of factors affecting changing the CATFP index showed that this index is mainly influenced by technological changes and then climate changes. After that, scale efficiency and technical efficiency are in the third and fourth places of influencing the CATFP index.