noun: catalyst; plural noun: catalysts
- a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
- a person or thing that precipitates an event."the governor's speech acted as a catalyst for debate"
So, the Saudis are intent on keeping their production raised, and intent on capturing market share. The price of oil goes down for an extended period due to oversupply, they increase gross revenues to themselves, and put the extra money into US Treasuries.
The average consumer gets a windfall, interest rates stay low, business profits go up.
And inflation gets a shot in the arm.