1Which of the following best defines Opportunity Cost?
A.The cost of raw materials and labor
B.The accounting cost minus the economic cost
C.The total explicit costs incurred by a firm
D.The value of the next best alternative forgone
Correct Answer: The value of the next best alternative forgone
Explanation:
Opportunity cost is a fundamental economic concept representing the potential benefits an individual, investor, or business misses out on when choosing one alternative over another.
Incorrect! Try again.
2Costs that involve a direct monetary outlay or payment to outsiders are known as:
A.Social Costs
B.Implicit Costs
C.Explicit Costs
D.Sunk Costs
Correct Answer: Explicit Costs
Explanation:
Explicit costs are out-of-pocket costs for a firm, such as payments for wages, raw materials, and rent. They are recorded in the books of accounts.
Incorrect! Try again.
3A cost that has already been incurred and cannot be recovered is called a:
A.Opportunity Cost
B.Sunk Cost
C.Marginal Cost
D.Variable Cost
Correct Answer: Sunk Cost
Explanation:
Sunk costs are retrospective costs that have already been incurred and cannot be recovered. They should be irrelevant to future decision-making.
Incorrect! Try again.
4Economic Profit is calculated as:
A.Total Revenue Variable Costs
B.Total Revenue Explicit Costs
C.Total Revenue (Explicit Costs + Implicit Costs)
D.Total Revenue Fixed Costs
Correct Answer: Total Revenue (Explicit Costs + Implicit Costs)
Explanation:
Economic profit accounts for both explicit costs (accounting costs) and implicit costs (opportunity costs of self-owned resources).
Incorrect! Try again.
5In the context of the production function, the Short Run is defined as a period where:
A.At least one input is fixed while others are variable
B.All inputs are variable
C.The firm can exit the industry completely
D.No production takes place
Correct Answer: At least one input is fixed while others are variable
Explanation:
The short run is a time frame in which the quantity of at least one input is fixed (usually capital or land), and the firm cannot adjust it.
Incorrect! Try again.
6The functional relationship between physical inputs and physical output is known as:
A.Demand Function
B.Production Function
C.Cost Function
D.Revenue Function
Correct Answer: Production Function
Explanation:
A production function expresses the relationship between quantities of productive factors (inputs) used and the amount of product obtained (output). Mathematical form: .
Incorrect! Try again.
7Which law governs production in the short run with one variable input?
A.Law of Variable Proportions
B.Law of Returns to Scale
C.Law of Demand
D.Law of Increasing Returns
Correct Answer: Law of Variable Proportions
Explanation:
The Law of Variable Proportions (or Law of Diminishing Returns) analyzes the production function with one variable factor, keeping other factors fixed.
Incorrect! Try again.
8In the Law of Variable Proportions, the Point of Inflection occurs where:
A.Average Product is maximum
B.Marginal Product is zero
C.Total Product starts increasing at a diminishing rate
D.Total Product stops increasing
Correct Answer: Total Product starts increasing at a diminishing rate
Explanation:
The point of inflection is where the Total Product curve changes from convex to concave, meaning the slope (Marginal Product) stops increasing and begins to decrease.
Incorrect! Try again.
9When Total Product (TP) is at its maximum, Marginal Product (MP) is:
A.Maximum
B.Zero
C.Equal to Average Product
D.Negative
Correct Answer: Zero
Explanation:
Marginal Product represents the slope of the Total Product curve. When the slope is zero (TP is flat at its peak), MP is zero.
Incorrect! Try again.
10Which of the following describes Stage II of the Law of Variable Proportions?
A.MP is increasing
B.MP is declining but positive
C.MP is negative
D.AP is increasing
Correct Answer: MP is declining but positive
Explanation:
In Stage II (Stage of Diminishing Returns), both AP and MP decline, but MP remains positive. This is the rational stage of production.
Incorrect! Try again.
11A rational producer will always operate in which stage of the Law of Variable Proportions?
A.Either Stage I or III
B.Stage II
C.Stage III
D.Stage I
Correct Answer: Stage II
Explanation:
In Stage I, efficiency is still increasing. In Stage III, marginal product is negative. Rational producers operate in Stage II where TP is rising (albeit slowly) and factors are utilized efficiently.
Incorrect! Try again.
12If the production function exhibits Constant Returns to Scale, doubling all inputs will result in:
A.Less than double the output
B.Exactly double the output
C.No change in output
D.More than double the output
Correct Answer: Exactly double the output
Explanation:
Constant Returns to Scale (Long Run concept) implies that output increases in the same proportion as the increase in inputs.
Incorrect! Try again.
13Total Fixed Cost (TFC) curve is:
A.A horizontal straight line parallel to the X-axis
B.U-shaped
C.Upward sloping
D.A vertical straight line
Correct Answer: A horizontal straight line parallel to the X-axis
Explanation:
Fixed costs do not change with the level of output. Therefore, the TFC curve is a horizontal line.
Incorrect! Try again.
14Which cost curve is known as a Rectangular Hyperbola?
A.Average Variable Cost (AVC)
B.Average Fixed Cost (AFC)
C.Average Total Cost (ATC)
D.Marginal Cost (MC)
Correct Answer: Average Fixed Cost (AFC)
Explanation:
AFC is calculated as . As increases, AFC decreases continuously but never touches the axes, forming a rectangular hyperbola.
Incorrect! Try again.
15Total Cost (TC) in the short run is the sum of:
A.Average Fixed Cost and Average Variable Cost
B.Implicit Cost and Explicit Cost
C.Total Fixed Cost and Marginal Cost
D.Total Fixed Cost and Total Variable Cost
Correct Answer: Total Fixed Cost and Total Variable Cost
Explanation:
In the short run, total costs comprise costs that do not change with output (TFC) and costs that do change with output (TVC). .
Incorrect! Try again.
16Marginal Cost (MC) is defined as:
A.The cost of the fixed inputs
B.The change in total cost resulting from a one-unit change in output
C.The difference between Average Cost and Average Variable Cost
D.The total cost divided by output
Correct Answer: The change in total cost resulting from a one-unit change in output
Explanation:
Mathematically, or .
Incorrect! Try again.
17The vertical distance between the Total Cost (TC) curve and the Total Variable Cost (TVC) curve is equal to:
A.Zero
B.Total Fixed Cost
C.Average Fixed Cost
D.Marginal Cost
Correct Answer: Total Fixed Cost
Explanation:
Since , the difference () is always equal to TFC, which is constant.
Incorrect! Try again.
18When Average Cost (AC) is falling, what is the relationship between AC and Marginal Cost (MC)?
A.
B.
C.
D.
Correct Answer:
Explanation:
When the average is being pulled down, the marginal value must be lower than the average.
Incorrect! Try again.
19The Marginal Cost (MC) curve cuts the Average Cost (AC) curve at:
A.The beginning of the AC curve
B.The minimum point of AC
C.The maximum point of AC
D.Any point depending on the product
Correct Answer: The minimum point of AC
Explanation:
Mathematical relationship: MC equals AC when AC is at its minimum point.
Incorrect! Try again.
20Which of the following curves is NOT U-shaped?
A.Average Variable Cost (AVC)
B.Average Fixed Cost (AFC)
C.Marginal Cost (MC)
D.Short-run Average Cost (SAC)
Correct Answer: Average Fixed Cost (AFC)
Explanation:
AVC, MC, and SAC are U-shaped due to the Law of Variable Proportions. AFC is a rectangular hyperbola (continuously falling).
Incorrect! Try again.
21The Long Run Average Cost (LAC) curve is also called the:
A.Envelope Curve
B.Operating Curve
C.Both Planning and Envelope Curve
D.Planning Curve
Correct Answer: Both Planning and Envelope Curve
Explanation:
It is an 'Envelope Curve' because it envelopes all short-run curves, and a 'Planning Curve' because it helps firms plan the scale of plant for the long run.
Incorrect! Try again.
22Internal Economies of Scale occur due to:
A.Expansion of the firm's own size
B.Government subsidies
C.Growth of the industry as a whole
D.Development of infrastructure in the region
Correct Answer: Expansion of the firm's own size
Explanation:
Internal economies arise from firm-specific factors like managerial efficiency, technical specialization, and financial capabilities as the firm expands.
Incorrect! Try again.
23If a firm doubles its inputs and output increases by less than double, it is experiencing:
A.Increasing Returns to Scale
B.Economies of Scope
C.Decreasing Returns to Scale
D.Constant Returns to Scale
Correct Answer: Decreasing Returns to Scale
Explanation:
Decreasing Returns to Scale (or Diseconomies of Scale) happen when output growth lags behind input growth, leading to rising long-run average costs.
Incorrect! Try again.
24The formula for Break-Even Point (BEP) in units is:
A.
B.
C.
D.
Correct Answer:
Explanation:
BEP (Units) is calculated by dividing Fixed Costs by the Contribution Margin per unit ().
Incorrect! Try again.
25Contribution Margin is defined as:
A.Total Assets Total Liabilities
B.Fixed Costs + Profit
C.Sales Variable Costs
D.Sales Fixed Costs
Correct Answer: Sales Variable Costs
Explanation:
Contribution is the portion of sales revenue that is not consumed by variable costs and so contributes to the coverage of fixed costs.
Incorrect! Try again.
26At the Break-Even Point, Total Revenue (TR) is equal to:
A.Total Fixed Cost
B.Total Cost
C.Total Variable Cost
D.Zero
Correct Answer: Total Cost
Explanation:
The Break-Even Point is the level of activity where total revenue equals total expenses (Fixed + Variable), resulting in zero profit.
Incorrect! Try again.
27The Margin of Safety is calculated as:
A.Fixed Cost / P/V Ratio
B.Actual Sales Break-Even Sales
C.Variable Cost / Sales
D.Break-Even Sales Actual Sales
Correct Answer: Actual Sales Break-Even Sales
Explanation:
Margin of Safety represents the cushion a company has before it starts making a loss. It is the excess of actual sales over break-even sales.
Incorrect! Try again.
28The Profit-Volume (P/V) Ratio is calculated as:
A.
B.
C.
D.
Correct Answer:
Explanation:
The P/V ratio expresses the relationship between Contribution and Sales, indicating the rate at which profit is earned.
Incorrect! Try again.
29An increase in Fixed Costs, assuming other factors remain constant, will:
A.Decrease the Break-Even Point
B.Have no effect on the Break-Even Point
C.Increase the Break-Even Point
D.Increase the P/V Ratio
Correct Answer: Increase the Break-Even Point
Explanation:
If Fixed Costs rise, the firm needs to sell more units to cover these costs, thus raising the Break-Even Point.
Incorrect! Try again.
30Which of the following represents an Implicit Cost?
A.Rent paid for a factory
B.Interest on borrowed capital
C.Wages paid to laborers
D.Salary foregone by the owner for working in their own firm
Correct Answer: Salary foregone by the owner for working in their own firm
Explanation:
Implicit costs are the opportunity costs of using resources owned by the firm/owner, such as the owner's time or own land, for which no direct cash payment is made.
Incorrect! Try again.
31Variable inputs are those that:
A.Are free of cost
B.Cannot be changed in the short run
C.Can be changed in the short run
D.Are used only in the long run
Correct Answer: Can be changed in the short run
Explanation:
Variable inputs (like labor, raw materials) can be adjusted easily according to the level of output in the short run.
Incorrect! Try again.
32When Average Product (AP) is decreasing, Marginal Product (MP) is:
A.Greater than AP
B.Constant
C.Equal to AP
D.Less than AP
Correct Answer: Less than AP
Explanation:
For an average curve to fall, the marginal value added must be lower than the current average.
Incorrect! Try again.
33The shape of the Total Product (TP) curve in the first stage of production is:
A.A straight line
B.Initially convex, then concave
C.Concave to the origin
D.Convex to the origin
Correct Answer: Initially convex, then concave
Explanation:
TP increases at an increasing rate (convex) initially, then at a diminishing rate (concave) after the point of inflection.
Incorrect! Try again.
34Incremental costs are most similar to which other cost concept?
A.Average Costs
B.Marginal Costs
C.Fixed Costs
D.Sunk Costs
Correct Answer: Marginal Costs
Explanation:
Incremental cost refers to the total change in cost resulting from a decision (often a batch or policy change), similar to Marginal Cost which is the change per single unit.
Incorrect! Try again.
35In a Break-Even Chart, the Angle of Incidence indicates:
A.The fixed cost amount
B.The total loss
C.The rate at which profit is earned
D.The variable cost ratio
Correct Answer: The rate at which profit is earned
Explanation:
The Angle of Incidence is the angle formed where the Sales line cuts the Total Cost line. A wider angle indicates a higher rate of profit generation.
Incorrect! Try again.
36If Selling Price is $20$, Variable Cost is $12$, and Fixed Cost is $10,000$, the Break-Even Point in units is:
A.1,250 units
B.500 units
C.833 units
D.1,000 units
Correct Answer: 1,250 units
Explanation:
units.
Incorrect! Try again.
37The Shut-down point in the short run for a firm occurs when Price is equal to:
A.Average Fixed Cost (AFC)
B.Average Variable Cost (AVC)
C.Marginal Cost (MC)
D.Average Total Cost (ATC)
Correct Answer: Average Variable Cost (AVC)
Explanation:
If a firm cannot cover even its variable costs, it loses more by operating than by shutting down. The shut-down point is where .
Incorrect! Try again.
38Accounting Profit is generally ____ than Economic Profit.
A.Lower
B.Equal
C.Higher
D.Unrelated
Correct Answer: Higher
Explanation:
Accounting profit only subtracts explicit costs. Economic profit subtracts explicit AND implicit costs. Since implicit costs are positive, economic profit is lower.
Incorrect! Try again.
39In the long run, there are no:
A.Variable Costs
B.Implicit Costs
C.Opportunity Costs
D.Fixed Costs
Correct Answer: Fixed Costs
Explanation:
In the long run, all factors of production can be adjusted, meaning all costs become variable. There are no fixed costs.
Incorrect! Try again.
40Which curve indicates the minimum unit cost of producing any given volume of output in the long run?
A.SAC Curve
B.LMC Curve
C.LAC Curve
D.AVC Curve
Correct Answer: LAC Curve
Explanation:
The Long Run Average Cost (LAC) curve represents the lowest possible average cost for producing various levels of output when the firm can adjust its plant size.
Incorrect! Try again.
41Managerial diseconomies of scale arise primarily due to:
A.Communication and coordination difficulties
B.Technological obsolescence
C.Shortage of raw materials
D.Government taxes
Correct Answer: Communication and coordination difficulties
Explanation:
As a firm grows too large, management becomes complex, causing delays in decision-making and communication gaps (Diseconomies of Scale).
Incorrect! Try again.
42The derivative of the Total Cost function with respect to Quantity () gives:
A.Fixed Cost
B.Total Variable Cost
C.Average Cost
D.Marginal Cost
Correct Answer: Marginal Cost
Explanation:
Mathematically, Marginal Cost is the first derivative of the Total Cost function: .
Incorrect! Try again.
43If the P/V ratio is 40% and Fixed Cost is $40,000$, what is the Break-Even Sales volume?
A.$160,000$
B.$100,000$
C.$10,000$
D.$16,000$
Correct Answer: $100,000$
Explanation:
.
Incorrect! Try again.
44The law of variable proportions is also known as:
A.Law of Diminishing Returns
B.Law of Diminishing Marginal Utility
C.Law of Constant Returns
D.Law of Supply
Correct Answer: Law of Diminishing Returns
Explanation:
It is often called the Law of Diminishing Returns because the most significant phase is where marginal product diminishes.
Incorrect! Try again.
45Isoquants are to production what ____ are to consumption.
A.Supply curves
B.Demand curves
C.Budget lines
D.Indifference curves
Correct Answer: Indifference curves
Explanation:
An Isoquant represents combinations of inputs yielding the same output, similar to how an Indifference curve represents combinations of goods yielding the same utility.
Incorrect! Try again.
46Social Cost is defined as:
A.Private Cost External Cost
B.Explicit Cost + Implicit Cost
C.Fixed Cost + Variable Cost
D.Private Cost + External Cost
Correct Answer: Private Cost + External Cost
Explanation:
Social cost is the total cost to society, which includes the private costs borne by the producer and the external costs (negative externalities like pollution) borne by society.
Incorrect! Try again.
47When Total Product is falling, Marginal Product is:
A.Rising
B.Zero
C.Constant
D.Negative
Correct Answer: Negative
Explanation:
If the total amount produced actually decreases when adding another worker, that worker's marginal contribution is negative.
Incorrect! Try again.
48The difference between Total Revenue and Total Variable Cost is known as:
A.Gross Margin
B.Operating Profit
C.Net Profit
D.Contribution
Correct Answer: Contribution
Explanation:
Contribution = . It contributes towards covering fixed costs and generating profit.
Incorrect! Try again.
49Which of the following cost curves is never U-shaped?
A.Short Run Marginal Cost
B.Total Fixed Cost
C.Average Variable Cost
D.Long Run Average Cost
Correct Answer: Total Fixed Cost
Explanation:
Total Fixed Cost is a horizontal line. Note: AFC is a hyperbola. Neither are U-shaped. Given the options, TFC is the correct choice describing a linear shape.
Incorrect! Try again.
50If a firm wants to lower its Break-Even Point, it should:
A.Decrease Selling Price
B.Increase Variable Cost per unit
C.Increase Fixed Costs
D.Reduce Fixed Costs
Correct Answer: Reduce Fixed Costs
Explanation:
Reducing the numerator (Fixed Costs) in the BEP formula lowers the break-even point, making it easier to reach profitability.