Microeconomics and Pricing

Demand is defined as the desire for a commodity backed by both ability and willingness to pay. A decrease in input prices shifts supply curve rightward, not leftward. Essential goods demand increases less than proportionately with income (they're inelastic). Substitute goods have direct relationship, not inverse.

In perfect competition, profit maximization occurs where Marginal Cost equals Marginal Revenue (MC = MR). MC = AC describes average cost minimization, not equilibrium. MC = Zero would mean producing at no cost.

In perfect competition, short-run equilibrium occurs where Marginal Revenue (MR) equals Marginal Cost (MC), and MC must be rising at that point. Option B is correct because firms maximize profit by producing where MR = MC, but only on the rising portion of the MC curve. Option A is incorrect because MC can equal minimum AC without MR being at equilibrium. Option C describes long-run equilibrium with zero economic profit. Option D is wrong because equilibrium requires MC to be rising, not falling.

Option D is correct - firms in perfect competition are 'price takers' (the option has a typo 'price-taken' but the concept is correct). In perfect competition, individual firms cannot influence market price and must accept the prevailing price determined by market supply and demand. Options A and B are incorrect statements about equilibrium conditions. Option C is wrong because the short-run supply curve has a positive slope (firms supply more at higher prices).

The kinked demand curve model in oligopoly explains price rigidity and the tendency of firms to match price cuts but not price increases. This creates a 'kink' at the prevailing price. The model suggests that this behavior emerges from the interdependence and strategic interactions among rival firms in an oligopolistic market, where firms implicitly follow each other's pricing decisions to avoid price wars.

 In perfect competition market, all super profits are eliminated by an infinite number of firms producing infinitely divisible, homogeneous products In the long run.

 In reality it is almost impossible that all firms sell identical products, all firms are price takers, All firms have a relatively small market share, buyers know the nature of the product being sold and the prices charged by each firm and the industry is characterized by freedom of entry and exit. Hence, perfect competition is considered a myth.

Population has no role in determining a consumer's demand for a commodity.

Yes, it is the main characteristic of monopoly.

Statement 1 is correct because by hoarding essential commodities or by creating man made shortage leads to lesser availability, which ultimately leads to demand-pull inflation. Statement 2 is correct. Fall in production decrease in supply over demand. Statement 3 is correct. Lack of proper storage facility leads to decrease in availability of the goods. Statement 4 is correct. Increase in demand over supply also leads to demand-pull inflation.

Bread and butter, car and petrol are examples of goods having joint demand. Joint demand occurs when two goods are consumed together - one is useless without the other. Bread requires butter to be eaten as intended, and cars require petrol to function. These are complementary goods where the demand for one creates demand for the other. This differs from composite demand (multiple uses of same good), derived demand (demand dependent on another product), or autonomous demand (independent demand).

When the government's main objective is to raise revenue, it should tax commodities with low elasticity of demand. This is because consumers will continue to purchase these goods even when prices increase, leading to stable tax revenue. High elasticity demand would cause significant consumption reduction, reducing total tax collected.

External factors influencing pricing include product demand, competition, economic conditions, and government regulations. Product Life-cycle is an internal product characteristic, not an external market factor. The life-cycle stages are determined by the product's own performance and timeline.

The statement emphasizes pricing's vital role in the economy. Option A supports this by stating price regulates demand, option C shows price is used as a competitive weapon, and option D indicates price determines profitability. Option B contradicts the statement by suggesting quality matters more than price, which does NOT support pricing's vital role in the economy.

A discount is a reduction from the quoted/listed price that lowers the actual amount paid at purchase. Discounts are applied at the point of sale - the buyer immediately pays less than the original quoted price. This is different from a rebate (refund after purchase) or an offer (general promotion).