Optimization of corn commodity Warehouse Receipt System (WRS) in South Sulawesi based on system dynamics

Abstract

The purpose of this research is to study various factors that influence farmers in using the warehouse receipt system (WRS) and to apply the warehouse receipt system policy scenario in South Sulawesi. The method used is a dynamic system. The simulation results of the actual model type are that the income obtained from the actual (existing) model using WRS is higher than the direct income (selling corn directly) without entering the warehouse (WRS), as well as real income (where 100% of the corn that is produced) entered the warehouse immediately sold at the time without any delay in selling). The ideal type of warehouse receipt system shows the result that there is a difference in income (lost profit/benefit loss) if it does not optimize the existence of the warehouse, in other words, the average annual loss of income is 113.5 billion. The model shows that by delaying the sale, the profit difference (difference in income) is obtained from 38.35 billion to 189.77 billion or an average of 113.5 billion per year. The scenario model was developed with the consideration of optimizing the ideal model, namely optimizing the difference in income obtained from selling delays of 30% with a strategy of increasing agricultural productivity through increasing farmer productivity, which can be done in various ways such as training, socialization, education, institutional Warehouse receipt systems must carry out changes to increase productivity and performance in the field, build strong stakeholder support between local and central government.