[jegutman]

Their incentives are to burn the dead crops to maximize profit. There is not a system of property rights and a government willing to enforce them to prevent them from burning. I kind of doubt it's even a Coasean outcome given that it's causing quite a lot of damage to the air quality in Singapore and neighboring countries where they might be willing to pay them not to burn, but somehow that solution doesn't work (neutral enforcers of the agreement is obviously one difficult issue, and nobody is willing to go to war over it).