Selective regulation of agri-food markets: a bibliometric review and a testable framework linking endogenous market structures, policy instruments and value chain integration
This paper employs a bibliometric analysis of over 21,000 documents to reveal the theoretical disconnection between endogenous market structures, policy instruments, and value chain governance in EU enlargement economies, subsequently proposing a unified "selective regulation" framework and testable propositions to address the region's structural weakness of exporting raw commodities rather than value-added processed goods.
Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer
In the vast landscape of global agriculture, a quiet but persistent pattern has long puzzled economists and policymakers in Eastern Europe. For decades, countries on the eastern edge of the European Union have been incredibly successful at growing grain, yet they struggle to sell the flour, bread, or animal feed made from that same grain. Instead of capturing the extra value created by turning raw crops into finished products, these nations often export the raw material and import the processed goods back. This phenomenon, known as the "commodity trap," leaves local economies poorer than they could be, as the profits from processing flow to other countries. To understand why this happens, researchers usually look at three separate areas of study: how markets naturally organize themselves, the specific rules and subsidies governments use to manage farming, and the way goods move through complex supply chains. While each of these fields offers a piece of the puzzle, they have rarely spoken to one another, leaving a gap in our understanding of how to fix the problem.
A new study by a team of researchers from Ukraine and Poland sets out to bridge these gaps. They began by asking a simple but profound question: do these three separate fields of research actually talk to each other in the scientific literature? To find out, they conducted a massive digital sweep of over 21,000 academic papers published between 2000 and 2025. Using sophisticated software, they mapped out how often these different topics appeared together. The results were revealing. While many papers discussed two of the topics at once, such as grain markets and government rules, very few brought all three together. When the researchers added the specific context of countries joining the European Union, the number of papers that connected market structures, policy tools, and supply chains dropped to a mere 219 documents, representing just one percent of the total field. Even more striking, none of these papers offered a single, unified plan for how to fix the problem, and the specific phrase "selective regulation" did not appear in the dataset at all.
The analysis uncovered a deeper issue: the theories needed to solve the problem have effectively stopped evolving in this field. The researchers found that the mathematical models used to explain how markets form and change had become "chronologically frozen," with the key terms in this area dating back to around 2013 and 2014. Meanwhile, the rest of the research world had rushed forward, focusing on new, urgent topics like blockchain technology, resilience against climate shocks, and the impact of the war in Ukraine. This created a strange disconnect where the most theoretically grounded ideas were sitting on the shelf, while the most pressing real-world problems were being studied without a solid theoretical foundation. Furthermore, the researchers noticed that the scholars working in the countries most affected by this commodity trap—such as Ukraine, Romania, and Bulgaria—were largely isolated from the global network of experts who were developing the solutions. These researchers were often working on the periphery, reacting to crises rather than shaping the long-term strategies needed to transform their economies.
To address this disconnect, the team proposed a new way of thinking called "selective regulation." Instead of applying a one-size-fits-all set of rules to every part of the food supply chain, they suggest that policymakers should first diagnose the specific condition of each link in the chain. Imagine a pipeline carrying water; if the pipe is broken because of a sudden storm, you need a temporary patch to stop the leak. But if the pipe is broken because someone has blocked the flow on purpose, you need to remove the blockage before you can fix anything else. The researchers argue that governments often make the mistake of trying to build new, fancy sections of the pipeline (like investing in new factories) when the real problem is that the water isn't flowing freely to begin with. Their framework distinguishes between "stabilizing" tools, which fix immediate disruptions like broken contracts or blocked trade routes, and "formative" tools, which actively encourage new growth, such as building processing capacity or improving quality standards.
The study then illustrated this idea using real-world data from five countries: Poland, Hungary, Bulgaria, Romania, and Ukraine. They looked at the ratio of raw grain exports to processed grain exports to see where each country stood in recent years. The results showed a clear gradient. Poland, which has been a member of the European Union for two decades, exported more processed grain products than raw ones in 2023 and 2024, suggesting its system has successfully moved up the value chain. In contrast, countries like Romania and Bulgaria still export far more raw grain than processed goods. Ukraine sits at the extreme end of this spectrum, exporting raw grain at a rate of nearly eighteen times higher than its processed products. The researchers found that this difference is not just about having access to European Union rules, since all these countries have had access to similar tools for years. Instead, the difference lies in how those tools are chosen and ordered.
The paper concludes by offering a set of testable ideas to prove whether this new approach works. They suggest that if a country wants to move from selling raw grain to selling flour or bread, it must first ensure that the flow of goods between farmers and processors is stable and fair. Only after that foundation is secure should the government invest in helping those processors grow. The study argues that without this careful sequencing, investments in new factories or technology will likely fail because the underlying market is still broken. By mapping out exactly which tools to use and when, the researchers hope to provide a clear path for countries to escape the commodity trap. Their work does not claim to have solved the problem yet, but it provides the first clear map of where the missing pieces are and how they might finally fit together.
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