| Summary: | Shallot, like other horticultural commodities, has such a sharp price fluctuation because of its seasonal production, perishable (easily damaged, rotten and not durable) characteristics, and inadequate management. Problems emerge when there is a significant increase on the price as the result of supply shortage in Bantul Regency, Yogyakarta, Indonesia. Shallot farmers in this regency grow shallot twice a year. It differs from those in Brebes Regency, Central Java, Indonesia where shallot planted three times a year. This cropping intensity differences resulted in differences on annual production capacity, land use, and land need. Hence, the researchers tried to discuss the phenomena from delay factors perspective. We simulated the behavior change on shallot supply and analyzed the correlation among the factors using dynamic system approach. The results showed that a change on delay factors in Bantul Regency from 0,55 into 0,32 would lead into a significant decrease on the width of shallot field and stock of other commodities such as rice and vegetables, although shallot production would increase.
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