The Logic of Specialized Division of Labor in the Mariculture Industry:An Inframarginal Analysis Based on External Risks

The development of the mariculture industry is critical to ensuring global food safety. As a booming industry, its specialized division of labor is continuously evolving to promote its current green transformation. To reveal the formation mechanism of vertical specialization in the mariculture industry and explore the pathways to improving its production efficiency, this paper adds risk factors to the existing inframarginal model to study the mechanism of how production risks affect vertical specialization, analyze the impact of those risks on production efficiency and test the hypothesis by perform the dynamic simulation of industrial division of labor evolution process based on ABM model. The results show that the greater the reduction in production risk brought about by specialization, the more divided the production structure tends to be. Vertical specialization improves the production efficiency of each link, and the lower the risk of specialization in the corresponding production link, the higher the production efficiency tends to be. These findings suggest that the level of specialization in the mariculture industry should be improved by enhancing transaction efficiency and reducing learning costs, multiplying channels to reduce the risks of specialized farming, and improving the risk transfer system.