Assume that consumer’s income and the number of sellers in the market for good X both falls. Based on this information, we can conclude with certainty that the equilibrium:ans.Quantity will increase Quantity will decreasePrice will decrease  Price will increase  Previous Marked for Review Next

The equilibrium of a market is determined by the interaction of supply and demand. In this case, two factors are changing: consumer's income and the number of sellers in the market for good X.

1. Consumer's Income Falls: When consumers' income falls, their purchasing power decreases. This means they are less able to buy goods and services, which decreases the demand for good X. According to the law of demand, when demand decreases, the quantity demanded at each price decreases, and the demand curve shifts to the left. This would lead to a decrease in the equilibrium quantity and price, all else being equal.

2. Number of Sellers Falls: When the number of sellers in the market for good X falls, the supply of good X decreases. According to the law of supply, when supply decreases, the quantity supplied at each price decreases, and the supply curve shifts to the left. This would lead to a decrease in the equilibrium quantity and an increase in the equilibrium price, all else being equal.

So, when we combine these two effects, we can say with certainty that the equilibrium quantity of good X will decrease. However, the effect on the equilibrium price is uncertain without more information. The decrease in demand would put downward pressure on the price, while the decrease in supply would put upward pressure on the price. The overall effect on price would depend on the relative magnitudes of these two effects.