The Yom Kippur War in late 1973 was Egypts attempt at crossing the Suez Canal and taking the Sinai Peninsula back from Israeli occupation. On October 19, 1973 Richard Nixon requested $2.2 billion to support Israel in the Yom Kippur War. That resulted in OAPEC countries cutting production of oil and placing an embargo on oil exports to the United States and other countries backing Israel. That was the start of the 1973 oil crisis.[4][verification needed]
Sugar prices spiked in the 1970s because of Soviet Union demand/hoarding and possible futures contracts market manipulation. The Soviet Union was the largest producer of sugar at the time. In 1974, Coca-Cola switched over to high-fructose corn syrup because of the elevated prices.[6][7][verification needed]
Coffee
The price of coffee went up in the mid 1970s because of a black frost of 1975 that killed 66% of Brazil's coffee trees, which was the number one producer of coffee at the time. There was a big earthquake in 1976 in Guatemala that disrupted supply chains, the world's fifth biggest coffee exporter at the time. The Angolan Civil War started in 1975 disrupting their coffee production and shipping.[8][verification needed]
Gold
The United States weaned itself off the gold standard in the 1970s, allowing the price of gold to float. The price of gold went from a set exchange rate of $42.22 per troy ounce in 1973 to almost $200 per ounce in 1976.[9][verification needed]
Copper
Price controls were implemented in the early 1970s to combat inflation but when those price controls were lifted on commodities like copper the prices appreciated. These quick price rises were known as the Nixon shock.[10][11][verification needed]