What does "X" represent in the following symbol? 
X
Definitions:
Competitive Market
A market structure characterized by a large number of small firms, free entry and exit, and a homogeneous product, where no single firm can influence the market price.
Equilibrium
A condition or state in which market supply and demand balance each other, and as a result, prices become stable.
Buffalo Meat
The meat derived from buffaloes, considered a source of protein and widely consumed in certain cultures and countries.
Surplus
The situation in which the quantity of a product supplied exceeds the quantity demanded at the current price; often leads to downward pressure on prices.
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