Investigating the Effects of Economic Shocks and Price Risk on the Iranian Beef Marketing Margin Using Fourier Approximation | ||
| Journal of Agricultural Science and Technology | ||
| Articles in Press, Accepted Manuscript, Available Online from 28 December 2025 PDF (638.78 K) | ||
| Document Type: Original Research | ||
| Authors | ||
| Mahdi Pendar* ; Mohammad Rezvani; Arash Dourandish | ||
| Department of Agricultural Economics, Faculty of Agriculture, College of Agriculture and Natural Resources, University of Tehran, Karaj, Islamic Republic of Iran. | ||
| Abstract | ||
| Amid persistent economic shocks over the past decade, this study investigates the influence of price risk on beef marketing margin dynamics in Iran, incorporating structural breaks from April 2014 to March 2024. Price risk was estimated using the GARCH model, and the Fourier approximation was used to evaluate its effects on marketing margins while accounting for non-linear structural shifts. Findings from three estimation frameworks—markup, marketing cost, and relative margin—indicate that retail price risk positively contributes to the total beef marketing margin. In contrast, slaughterhouse-level price risk and slaughtering costs had an adverse effect on the farm-to-wholesale margin. Retail price risk and wholesale-to-retail marketing costs also increased the wholesale-to-retail margin. These results highlight the necessity of reevaluating retail-level price-setting mechanisms and strengthening risk management tools to shield producers from wholesale price volatility. | ||
| Keywords | ||
| Fourier approximation, Marketing margin, Price risk, Structural break | ||
| References | ||
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