which of the following will not affect the market price of a commodity

Analyze the question: We need the option that will not cause a change in the market price of a commodity.

Concept: Market price is determined by the interaction of demand and supply. The point where the demand curve meets the supply curve is the equilibrium point. It is the market price, not a factor that changes it. Price changes only when something shifts the demand or supply curve.

Going through the options:

• A. Increase in demand: The demand curve shifts right, so price rises (if supply is unchanged). This affects price.
• B. Change in taste: Tastes and preferences are a determinant of demand. If consumers' taste moves toward a product, demand rises and so does price. If it moves away, demand and price fall. This affects price.
• C. Intersection of demand and supply: This is the equilibrium position where the market price is already settled. It is the result, not a disturbance. Nothing has changed, so it does not cause the price to move.
• D. Increase in supply: The supply curve shifts right, so price falls. This affects price.

Answer: The intersection of demand and supply simply shows the equilibrium price.

Exam tip: Remember "shift = change." Anything that shifts demand or supply (income, taste, population, cost of production, technology) changes price. The equilibrium point is only where the price settles, so it is not a cause of change. For "which will NOT affect" questions, look for the option that describes a state or result rather than a change.