Abstract
Tea farming can be classified into three main categories. In the first category, tea farms produce only fresh leaves; in the second, tea farms produce fresh leaves and process them in tea factories owned by them; and in the third, tea farms produce fresh leaves and participate in processing activities managed by tea farmer cooperatives. The purpose of this study is to analyze the relationship between advantageous tea farming types and the environment surrounding tea farms in Kikugawa region, applying mixed integer programming. The main findings are as follows: (1) if the tea price decreases, the third tea farming type becomes more advantageous, (2) for the farms who can sell processed leaves at a price1.2 times higher than their usual price, the second type is the most advantageous.
