A friend was asking what are derivatives and what does it have to do with trading. I explained in local terms and it is something that I feel should be repeated on the blog. Please note that the supermarkets mentioned here are only used for example sake and they may or may not be involved in derivatives trading. Say it takes a year to grow rice. A farmer starts planting rice in January 2011. The price of rice is SGD1 per kg in January 2011. However, the farmer is worried that by January 2012, the price of rice will drop to SGD0.90 per kg. NTUC is worried that the price of rice might increase to SGD1.20 per kg in January 2012. So in January 2011, the rice farmer agree to sell the rice to NTUC at SGD1.10 per kg in January 2012. When Jan 2012 comes, the price of rice is SGD0.80 per kg, the farmer is protected as he can sell the rice to NTUC at SGD1.10 per kg. The farmer gains, but NTUC loses. The opposite scenario is at Jan 2012, the price of rice is at SGD1.30, NTUC saves, but
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