“…The ASEAN countries with the most intense rubber trade with Indonesia are Malaysia, Singapore, Thailand, Vietnam and the Philippines, but among the five ASEAN countries which are Indonesia's rubber trade partners, the most stable are with Malaysia, and Thailand, Vietnam and the Philippines. Meanwhile, with Singapore, the index has experienced instability, from 2005 to 2014 the index has a negative value, this is due to the lack of well-developed rubber trading policy space, as discovered by Sena Kim Gnangnon [3,16], see Figure 2. The fluctuation of the integration of the Indonesian rubber trade with the country of Singapore shows that the intensity of the rubber trade is strongly influenced by the performance of the country's economy in Singapore, especially as seen from the development of its GDP at current prices.…”