Refute. An increase in income does not always lead to a rise in demand for all goods.

Reasoning: While it is true that for most normal goods (like branded clothes, electronics, quality food), an increase in income leads to increased demand, this is not true for inferior goods. Inferior goods are low-quality goods that people buy only because they cannot afford better options (e.g., low-grade grains, second-hand clothes).

When a person's income increases, they usually stop buying inferior goods and switch to superior/normal goods. Therefore, an increase in income actually leads to a fall in demand for inferior goods.

1. Demand for diesel cars: Increases. Petrol and diesel cars are substitute goods. If petrol becomes too expensive, consumers will shift to buying diesel cars instead.
2. Demand for electric cars: Increases. Electric cars are also a substitute for petrol cars. High petrol prices make EVs a much cheaper long-term alternative.
3. Demand for car accessories: Decreases. Petrol and car accessories (and cars in general) are complementary goods. If running a petrol car becomes unaffordable, fewer people will buy/use cars, leading to a fall in demand for accessories.
4. Demand for public transport: Increases. Public transport (buses, metro) acts as a substitute for private petrol vehicles. People will leave their expensive cars at home and opt for cheaper public transit.

1. His cost of production: Decreases. The new technology requires less manual labour and saves massive amounts of water, lowering the recurring expenses needed to grow crops.
2. His willingness to supply at different prices: Increases. Since his production cost is lower and his yield is higher, his profit margin at any given price increases. He will be willing and able to supply a larger quantity of crops at the same market prices.
3. The overall market supply: Increases significantly. If many farmers adopt drip irrigation, the aggregate production of the crop will shoot up. The market supply curve will shift to the right, which could potentially lower the market price of the crop for consumers.

Why sellers sell at a low price: During festivals, sellers expect a massive surge in market demand. To capture this vast customer base and clear out large stockpiles of inventory quickly (high supply), they lower prices. According to the Law of Demand, lower prices attract significantly more buyers.

Effect on Equilibrium: When prices are artificially lowered below the usual equilibrium for a sale, Quantity Demanded temporarily exceeds Quantity Supplied, creating a situation of excess demand (which is why items go "out of stock" so fast during sales). Eventually, as stocks clear, the sale ends, and the market returns to its normal equilibrium.

Who benefits: It benefits both. Consumers benefit by getting products at cheaper, affordable rates (saving money). Sellers benefit because even though the profit per item is low, the massive volume of items sold results in a much higher total revenue and profit overall.

Correct Option: b. Shortage

Explanation: When the government imposes a price ceiling (maximum sale price) below the natural market equilibrium, the vaccine becomes very cheap for consumers. According to the Law of Demand, the Quantity Demanded will surge rapidly.

However, the lower price cuts into the profits of pharmaceutical companies. According to the Law of Supply, producers will reduce their production, so Quantity Supplied will fall. Since Demand vastly exceeds Supply, a severe shortage of the essential vaccine will occur.

Yes, the government uses price controls (like price ceilings and subsidies) on several essential goods:

• Life-saving Medicines: The National Pharmaceutical Pricing Authority (NPPA) caps the prices of essential drugs (like insulin or cancer medications). Reason: To ensure these medicines remain affordable and accessible to the poor, preventing exploitation by private pharma monopolies.
• Food Grains (PDS / Ration Shops): The government sells wheat and rice at heavily subsidized rates through the Public Distribution System. Reason: To ensure food security and eradicate hunger among below-poverty-line (BPL) families.
• LPG Cylinders: Domestic cooking gas is often price-controlled or subsidized. Reason: To encourage families to use clean fuel instead of burning firewood, which harms health and the environment.

Yes, excessive government regulation can severely hurt markets, often causing more harm than good. When regulations are too rigid, they destroy the natural balance of demand and supply.

• Reduces Producer Incentives: If the government forces farmers to sell crops at artificially low prices (strict price ceilings), farmers cannot cover their costs or make a profit. They will simply stop producing that crop, leading to massive food shortages.
• Black Marketing: When strict price caps cause shortages in regular markets, sellers hoard the goods and sell them secretly at illegally high prices to desperate buyers (black marketing), totally defeating the government's purpose.
• Compliance Burden (License Raj): If starting a business requires dozens of government permits, licenses, and bribes, small entrepreneurs are discouraged. This stifles innovation, reduces job creation, and harms the "ease of doing business."

(Note: This is an activity. A representative sample of a Demand Schedule showing the Law of Demand is provided below.)

As the price falls from ₹100 to ₹20, the total quantity demanded by everyone rises significantly, proving the inverse relationship of the Demand Curve.

1. Who decides prices: No single person decides the price. It is determined collectively by the forces of market demand and supply. Vendors adjust prices based on how much stock they have and how many customers are willing to buy.
2. Why prices fluctuate: Prices are high when supply is short (due to bad weather, transport strikes, or off-season) and demand is normal/high. Prices drop too low during peak harvest seasons when farmers flood the market with massive supplies that exceed consumer demand.
3. Morning vs Evening Prices: Tomatoes are highly perishable goods (they rot quickly). In the morning, they are fresh, and demand is high, so vendors charge higher prices. By evening, the tomatoes are less fresh, and vendors want to clear their stock before it rots completely. To encourage remaining buyers to purchase the leftover stock, they slash the prices.

1. Movie ticket and popcorn: Complementary goods (used together).
2. Eraser and pencil: Complementary goods.
3. Laptop and (Desktop) computer: Substitute goods (can replace each other).
4. Air Conditioner and cooler: Substitute goods.
5. Notebook and pen: Complementary goods.
6. Apple and banana: Substitute goods.
7. Mobile and earphones: Complementary goods.

1. Point E: Represents the Market Equilibrium point, where the Quantity Demanded exactly equals the Quantity Supplied. The market is cleared.
2. Equilibrium Price and Quantity: Looking at the axes, the Equilibrium Price is ₹250 (the midpoint between 200 and 300) and the Equilibrium Quantity is 30 kg.
3. Points A and B: They sit on the upper dashed price line (at ₹300). Point A shows that at ₹300, quantity demanded is low (20 kg). Point B shows that at ₹300, quantity supplied is high (40 kg). The gap between A and B represents Excess Supply (or a Surplus) of 20 kg in the market.
4. Points C and F: They sit on the lower dashed price line (around ₹175). Point C shows a low quantity supplied, while Point F shows a high quantity demanded. The gap between C and F represents Excess Demand (or a Shortage) in the market.
5. What happens next: If the price stays at the lower dashed line, the shortage (Excess Demand) means many willing buyers cannot get the product. Desperate buyers will start bidding up the price. As the price rises, suppliers will produce more, and some buyers will drop out. This natural market adjustment will push the price back up until it settles at the equilibrium point (E).