CBSE Class 9 Social Science Chapter 09 The Price Puzzle What Drives The Market MCQs Set 03

Answer: (A) As price rises, quantity demanded falls, and vice versa

Explanation:
The chapter establishes the Law of Demand through Srivalli's purchasing pattern: at ₹150 per kg she bought 1 kg, at ₹100 she bought 2 kg, and at ₹50 she bought 3 kg. This inverse relationship—where lower prices encourage larger purchases and higher prices discourage them—defines the fundamental demand principle that governs consumer behavior across all markets.

Answer: (A) The market demand curve is flatter and more responsive to price changes because it represents many consumers

Explanation:
The chapter's 'Don't Miss Out' section explicitly notes that when price falls from ₹150 to ₹50, Srivalli's demand increases by 2 kg but market demand increases by 12 kg. This larger aggregate response means the market curve appears flatter—the same price change produces a greater total quantity response when many consumers are included rather than just one.

Answer: (A) Implementing a price ceiling on essential medicines

Explanation:
The chapter identifies price ceilings as maximum prices the government sets for essential goods to prevent overcharging. The sanitizer example during COVID-19 illustrates this exactly: the government capped retail price at ₹100 per 200 ml bottle to ensure affordability while suppliers adjusted production to meet demand.

Answer: (A) The farmer would hold back current supply to sell later at higher prices

Explanation:
The chapter's supply section on future expectations explicitly states that 'if potato wholesalers expect prices to rise during the peak season, they might hold back supply now to sell later at higher prices.' This strategic behavior reflects how suppliers adjust supply decisions based on anticipated future conditions rather than only current prices.

Answer: (A) Market supply remains constant while demand decreases throughout the day, causing prices to fall

Explanation:
The chapter opens by posing this exact question about vegetable pricing. Throughout the day, initial morning demand from bulk buyers is high, supporting higher prices. As fewer customers arrive by evening, demand falls while supply remains relatively stable, creating excess supply that pushes prices downward—a natural market equilibration process.

Answer: (A) Consumer demand for this product is driven by factors beyond price, such as brand prestige and innovation

Explanation:
The chapter uses the new smartphone example to illustrate that 'demand for a product does not necessarily change only because of price.' Other determinants like taste, preference, brand reputation, and perceived innovation can drive demand upward even when prices rise, temporarily overriding the typical inverse price-quantity relationship.

Answer: (A) The willingness to pay decreases, so demand falls as consumption increases

Explanation:
The 'Think About It' section in the chapter explains diminishing marginal utility: the first mango tastes delicious, the second is good, but by the third the consumer barely enjoys it. As utility derived from successive quantities falls, the willingness to pay also decreases, causing demand to fall—a principle underlying the downward-sloping demand curve itself.

Answer: (A) Market supply increases as producers can supply more at each price level due to lower costs

Explanation:
The chapter identifies technology as a key determinant of supply, explaining that 'improvement in technology reduces the cost of production, allowing producers to produce more and supply more.' The drip irrigation example specifically illustrates how technological adoption by multiple farmers increases overall market supply through cost reduction and yield improvement.

Answer: (A) There is neither shortage nor surplus, and no pressure for prices to change

Explanation:
Table 9.3 in the chapter demonstrates that at ₹100 equilibrium, quantity demanded (12 kg) equals quantity supplied (12 kg), resulting in no excess demand or excess supply. The chapter states 'At this point, there is no pressure for prices to change, and the market is cleared'—the defining characteristic of equilibrium.

Answer: (A) Prices rise significantly because demand exceeds supply, creating excess demand

Explanation:
The COVID-19 sanitizer example directly illustrates this scenario: demand surged rapidly while 'supply could not catch up immediately,' causing prices to rise significantly. This excess demand condition persists until suppliers adjust production upward, demonstrating the dynamic market adjustment process toward a new equilibrium.

Answer: (A) Smartphones and earphones

Explanation:
The chapter defines complementary goods as 'generally used together to provide utility to the consumer,' explicitly listing 'smartphones and earphones, or cars and petrol' as examples. When the demand for one increases, demand for its complement increases even if complement prices remain unchanged, unlike substitute goods where rising price of one increases demand for the other.

Answer: (A) Compliance burdens discourage business formation, particularly harming small entrepreneurs and ease of doing business

Explanation:
The chapter explicitly identifies 'compliance burdens' as a limitation of government intervention, noting that 'extensive regulations, licenses, permits, and compliance procedures can hurt businesses, especially small enterprises and hamper ease of doing business.' The small restaurant example shows how cumulative permitting costs and complexity discourage entrepreneurship.

Answer: (A) Seasonal demand changes, booking pace, nearby competition, and anticipated occupancy rates

Explanation:
The hotel tariffs example explicitly lists multiple factors affecting pricing: 'how fast rooms are getting booked, tariff charged by nearby hotels, festivals and events in the area, weather forecasts, number of days left before arrival, and past booking trends.' These demonstrate how dynamic markets constantly adjust prices based on changing conditions rather than remaining fixed.

Answer: (A) Increased household income raises purchasing power and consumer confidence, expanding quantity demanded

Explanation:
The chapter's section on income states: 'When household income rises, consumers can afford to buy more or choose higher-quality products... a rise in income generally makes people feel more confident about their ability to spend, so the quantity demanded for several goods rises, even if prices remain the same.'

Answer: (A) Seasonality and timing of academic calendars drive periodic demand fluctuations independent of price

Explanation:
The chapter identifies seasonality as a key demand determinant, explaining that 'individuals may demand different products at different times of the year, and these changes often depend on weather, festivals, and cultural habits rather than the price of the good.' The academic calendar creates predictable seasonal demand for school supplies and books independent of price changes.

Answer: (A) Supply depends on the profitability of alternative crops, incentivizing farmers to shift production toward higher-priced goods

Explanation:
The chapter's section 'Price of related goods' under supply determinants explains: 'If wheat prices are low but chickpea prices are high, he will grow more chickpeas in the next season. Therefore, the supply of one good depends on the profitability of other alternatives for the supplier.' This illustrates how price signals coordinate production allocation across alternative goods.

Answer: (A) A shortage emerges as quantity demanded exceeds quantity supplied at the controlled price

Explanation:
When government fixes prices below equilibrium, quantity demanded at that artificially low price exceeds the quantity suppliers are willing to provide at reduced profitability. The vaccine price control example implicitly demonstrates this: if price is capped below equilibrium, more consumers want the vaccine than producers can profitably supply, creating shortage conditions.

Answer: (A) Prices generally fall as increased supply meets constant or declining demand, moving toward lower equilibrium

Explanation:
The chapter states: 'At the start of mango season, supply is low, making mangoes costly. Mid-season, the supply increases and prices fall.' This demonstrates the direct supply-price relationship: as supply increases relative to demand, downward pressure on price emerges, shifting equilibrium to a lower price level as the market clears at the new intersection point.

Answer: (A) Private companies cannot profitably provide public goods because benefits cannot be restricted to paying customers only

Explanation:
The chapter explains that 'public goods are usually not provided by private companies because they do not generate direct profit.' The neighborhood park example illustrates this: individuals think 'if others pay, the park will be built anyway, and I can use it without paying,' creating the free-rider problem that prevents private provision despite collective benefit.

Answer: (B) Demand for popcorn decreases because fewer people attend movies

Explanation:
Higher movie ticket prices reduce cinema attendance overall, which means fewer customers are present to purchase popcorn, even though popcorn's own price has not changed. This illustrates how complementary goods move together in the market.

Answer: (C) Market supply would increase substantially because production becomes more efficient and profitable

Explanation:
• Improved technology reduces production costs and increases yields
• Lower costs incentivize farmers to produce more
• Widespread adoption across many farms compounds this effect, shifting the entire market supply curve rightward

Answer: (B) Morning demand is higher than evening demand, and as supply remains steady, prices adjust downward to clear inventory

Explanation:
Morning shoppers create stronger demand relative to the fixed supply available, pushing prices up. By evening, if unsold inventory remains and demand weakens, sellers must lower prices to sell the remaining stock before spoilage. This is a classic demand-supply interaction showing how prices equilibrate throughout the day.

Answer: (B) Demand for vaccines will exceed supply, creating shortages

Explanation:
When a price ceiling is set below equilibrium, the lower price increases quantity demanded while simultaneously reducing the incentive for suppliers to produce as much. This mismatch creates excess demand—a shortage—as consumers want more vaccines than producers are willing to supply at the artificially low price.

Answer: (B) Seasonal shifts in consumer preferences and needs related to the academic calendar

Explanation:
Seasonality as a demand determinant reflects how consumer preferences and purchasing needs shift at particular times of the year based on weather, festivals, cultural habits, and events. The beginning of the academic year creates urgent demand for school supplies and textbooks that naturally diminishes as the year progresses, independent of price changes.

Answer: (B) How future price expectations influence current supply decisions

Explanation:
The farmer's decision to withhold supply based on anticipated future price increases directly demonstrates how supplier expectations about future prices shape current supply behavior. If producers expect higher prices ahead, they reduce present supply to capture better returns later, even though current production costs have not changed.