Rice pledging was created in 1981 as a policy tool to tackle plunging rice prices. In Thailand, rice pledging was created in 1981 as a tool to tackle plunging rice prices at the beginning of harvest season when surplus rice entered the market. Rice pledging and rice price guarantees are separate policies that function differently. We might like to start with rice farmers, and extend the help to other farmers like tapioca planters. Some people tend to compare it to rice pledging which I don't think is correct since each has a different rationale.

Source: Bangkok Post August 23, 2017 23:59 UTC