Microeconomics

Step 1: Understand the different approaches to utility analysis in economics.
Utility refers to the satisfaction or benefit derived by consuming a product or service.
There are two main approaches to measuring or analyzing utility:
Step 2: Define Cardinal and Ordinal Utility.
- Cardinal Utility Analysis: Assumes that utility is measurable and quantifiable in numerical terms, like 1, 2, 3 units (sometimes called "utils").
Consumers are assumed to be able to state exactly how much satisfaction they get from consuming a good.
This approach allows for comparison of utility levels (e.
g.
, good A gives twice as much utility as good B).
Concepts like marginal utility and total utility are often discussed within this framework.
- Ordinal Utility Analysis: Assumes that utility is subjective and cannot be measured numerically.
Instead, consumers can only rank their preferences for different goods or combinations of goods (e.
g.
, prefer A to B, or indifferent between A and B).
This approach uses indifference curves and budget lines to analyze consumer behavior.
It does not require assigning specific numerical values to satisfaction.

Step 3: Evaluate the terms given in options.
Option (1) Cardinal Utility: Assumes utility is numerically measurable.
This contradicts the statement "measurement .
.
.
in numerical terms is not possible.
" Option (2) Total Utility: The total satisfaction derived from consuming all units of a good.
This is a concept often associated with cardinal utility.
Option (3) Ordinal Utility: Assumes utility is subjective and can only be ranked (ordered), not measured numerically.
This matches the statement in the question.
Option (4) Marginal Utility: The additional utility derived from consuming one more unit of a good.
This is also often associated with cardinal utility (though the concept of diminishing marginal rate of substitution in ordinal utility is related).

Step 4: Identify the correct utility analysis.
The utility analysis where utility is subjective and numerical measurement is not possible is Ordinal Utility Analysis.
This matches option (3).

Step 1: Define key concepts in production theory related to a variable input (like labor).
- Total Product (TP): The total quantity of output produced by a given amount of inputs (e.
g.
, with a certain number of laborers and fixed capital).
- Average Product (AP): The total product per unit of the variable input.
, where L is the amount of labor.
- Marginal Product (MP): The additional output produced by employing one more unit of a variable input, holding other inputs constant.
, or the derivative for continuous changes.
- Revenue Product: This relates to the revenue generated.
- Marginal Revenue Product (MRP): The additional revenue generated by employing one more unit of a variable input ( , where MR is marginal revenue).
- Average Revenue Product (ARP): Total Revenue / Quantity of variable input.

Step 2: Match the definition with the given phrase.
The phrase "The addition made to the total product by employing one more labourer" directly defines the Marginal Product of labor.

Step 3: Confirm the correct term.
The additional output from one more unit of labor is the marginal product.
This matches option (4).

Step 1: Define the types of goods listed in the options based on their relationship in consumption.
- Substitutes (Substitute Goods): Goods that can be used in place of each other to satisfy a similar want or need.
If the price of one substitute good increases, the demand for the other substitute good tends to increase (and vice versa).
- Complementary Goods (Complements): Goods that are typically consumed together.
If the price of one complementary good increases, the demand for the other complementary good tends to decrease (and vice versa).
Examples: cars and petrol, printers and ink cartridges.
- Superior Goods (Normal Goods): Goods for which demand increases as consumer income increases.
- Inferior Goods: Goods for which demand decreases as consumer income increases (consumers switch to better alternatives).

Step 2: Analyze the given examples.
- Tea and Coffee: These are classic examples of substitute goods.
A consumer might choose coffee instead of tea (or vice versa) for a hot beverage, depending on preference, price, etc.
- Pepsi and Coca-Cola: These are also classic examples of substitute goods in the carbonated soft drink market.
Consumers often switch between them based on availability, price, or slight taste preferences.

Step 3: Classify the examples.
The examples provided (Tea and Coffee, Pepsi and Coca-Cola) are pairs of goods that can be used for the same purpose and are thus substitutes for each other.
This matches option (1).

Step 1: Understand the concepts of demand and supply.
- Demand: The quantity of a good or service that consumers are willing and able to buy at various prices during a given period.
- Supply: The quantity of a good or service that producers are willing and able to offer for sale at various prices during a given period.

Step 2: Define equilibrium in a market.
Market equilibrium occurs at the price where the quantity demanded by consumers equals the quantity supplied by producers.
At this point, there is no tendency for the price to change (unless demand or supply conditions change).

Step 3: Identify the term for this price.
The price at which quantity demanded equals quantity supplied is called the equilibrium price (or market-clearing price).
The corresponding quantity is called the equilibrium quantity.

Step 4: Evaluate other options.
- (1) Total price: A vague term, could refer to the total cost of multiple units, not the specific price point of equilibrium.
- (3) Minimum price (Price Floor): A government-imposed or agreed-upon lower limit on the price of a good or service.
If set above the equilibrium price, it leads to a surplus.
- (4) Maximum price (Price Ceiling): A government-imposed or agreed-upon upper limit on the price of a good or service.
If set below the equilibrium price, it leads to a shortage.

Step 5: Confirm the correct term.
The price where demand and supply are equal is the equilibrium price.
This matches option (2).