2. Why is it difficult to determine the spot price of oil? O Oil is highly dependent on politics and thus can change very rapidly.
Oil is primarily sold in long-term contracts, so there is no clear spot price of oil.
Oil is primarily traded in private markets, so very few people know how much money it is selling for.
O Oil cannot be stored efficiently, and thus special types of futures contracts are needed which do not incorporate
spot price.

Interview notes mike is 50 and made $36,000 in wages in 2017. he is single and pays all the cost of keeping up his home. mike's daughter, brittany, lived with mike all year. brittany's son, hayden, was born in november 2017. hayden lived in mike's home since birth. brittany is 25, single, and had $1,500 in wages in 2017. she is not disabled. mike provides more than half of the support for both brittany and hayden. mike, brittany, and hayden are all u.s. citizens with valid social security numbers. 4. who can mike claim as a qualifying child(ren) for the earned income credit?