Samacheer Kalvi Class 11 Economics Solutions Chapter 3 Production Analysis

Multiple Choice Questions:

Part - A

Question 1. The primary factors of production are
(a) Labour and Organisation
(b) Labour and Capital
(c) Land and Capital
(d) Land and Labour
Answer: (d) Land and Labour
In simple words: The basic things needed to make goods are land and labor. These are like the building blocks for any production.

🎯 Exam Tip: Remember that 'primary factors' refer to the fundamental, original resources without which production cannot begin.

Question 2. The man-made physical goods used to produce other goods and services are referred to as.
(a) Land
(b) Labour
(c) Capital
(d) Organization.
Answer: (c) Capital
In simple words: Things like machines or tools that people make to help create other products or services are called capital. They are not consumed directly but help in making other things.

🎯 Exam Tip: Distinguish between capital (man-made for production) and land (natural resources) or labor (human effort).

Question 3. The formula for calculating AP is
(a) ΔTP/N
(b) ΔTP/ΔN
(c) TP/MP
(d) TP/N
Answer: (d) TP/N
In simple words: To find the Average Product (AP), you divide the Total Product (TP) by the number of units of the variable factor (N) used. This tells you how much each unit of the variable factor produces on average.

🎯 Exam Tip: Remember that AP measures efficiency per unit of input, while Marginal Product (MP) measures the change from one extra unit.

Question 4. Which factor is called the changing agent of the Society
(a) Labourer
(b) Land
(c) Organizer
(d) Capital
Answer: (c) Organizer
In simple words: The organizer, also known as an entrepreneur, is the one who brings new ideas and changes to how things are done in society. They are the driving force behind innovation.

🎯 Exam Tip: The 'organizer' or 'entrepreneur' is key to dynamic economic growth as they innovate and take risks.

Question 5. Who said, that one of the keys of an entrepreneur is "uncertainty - bearing"?
(a) JB Clark
(b) Schumpeter
(c) Knight
(d) Adam Smith
Answer: (c) Knight
In simple words: The economist Knight believed that a main part of being an entrepreneur is dealing with things you cannot predict or plan for. They take on unknown risks.

🎯 Exam Tip: Associate Frank H. Knight with the concept of "uncertainty bearing" as a core function of entrepreneurship, distinguishing it from insurable risk.

Question 6. The functional relationship between "inputs” and “outputs" is called as
(a) Consumption Function
(b) Production Function
(c) Savings Function
(d) Investment Function
Answer: (b) Production Function
In simple words: This term describes how much output you get from the different resources (inputs) you put into making something. It shows how they are linked.

🎯 Exam Tip: Understand that a production function mathematically represents the maximum output that can be produced from a given set of inputs.

Question 7. In a firm 5 units of factors produce 24 units of the product. When the number of factor increases by one, the production increases to 30 units. Calculate the Average Product.
(a) 30
(b) 6
(c) 5
(d) 24
Answer: (c) 5
In simple words: First, 5 workers make 24 items. When 1 more worker is added (total 6 workers), they make 30 items. To find the average product for the new situation, divide the total new items (30) by the total new workers (6). This gives an average of 5 items per worker.

🎯 Exam Tip: When calculating 'Average Product' after a change, always use the new total output divided by the new total input.

Question 8. The short-run production is studied through
(a) The Laws of Returns to Scale
(b) The Law of Variable Proportions
(c) Iso-quants
(d) Law of Demand
Answer: (b) The Law of Variable Proportions
In simple words: In the short run, where some production factors cannot be changed, we look at how output changes when we add more of just one factor, like labor. This is explained by the Law of Variable Proportions.

🎯 Exam Tip: Remember that 'short-run' implies at least one factor of production is fixed, making the Law of Variable Proportions relevant.

Question 9. The long-run production function is explained by
(a) Law of Demand
(b) Law of Supply
(c) Returns to Scale
(d) Law of Variable Proportions
Answer: (c) Returns to Scale
In simple words: In the long run, when all factors of production can be changed, we study how the output changes when all inputs are increased together. This is known as Returns to Scale.

🎯 Exam Tip: 'Long-run' means all factors are variable, so focus on 'Returns to Scale' which describes how output changes with proportional changes in all inputs.

Question 10. An Iso-quant curve is also known as
(a) Inelastic Supply Curve
(b) Inelastic Demand Curve
(c) Equi-marginal Utility
(d) Equal Product Curve
Answer: (d) Equal Product Curve
In simple words: An iso-quant curve shows all the different combinations of two inputs that can make the same amount of output. Because it represents equal production levels, it is also called an Equal Product Curve.

🎯 Exam Tip: Remember that "iso" means equal, so an iso-quant curve represents equal quantities of output.

Question 11. Mention the economies reaped from inside the firm.
(a) Financial
(b) Technical
(c) Managerial
(d) All of the options
Answer: (d) All of the options
In simple words: When a business grows, it can save money in many ways from within itself. These savings can be from how it handles money, uses technology, or manages its operations.

🎯 Exam Tip: 'Internal economies of scale' refer to cost advantages a firm achieves from expanding its own production, covering financial, technical, and managerial aspects.

Question 12. Cobb-Douglas production function assumes
(a) Increasing returns to scale
(b) Diminishing returns to scale
(c) Constant returns to scale
(d) All of the options
Answer: (c) Constant returns to scale
In simple words: The basic idea behind the Cobb-Douglas production function is that if you double all your inputs, your output will also double. This is called constant returns to scale.

🎯 Exam Tip: The standard Cobb-Douglas function typically implies constant returns to scale, where output changes proportionally with input changes.

Question 13. Name the returns to scale when the output increases by more than 5%, for a 5% increase in inputs.
(a) Increasing returns to scale
(b) Decreasing returns to scale
(c) Constant returns to scale
(d) All of the options
Answer: (a) Increasing returns to scale
In simple words: If you increase all your production inputs by a certain percentage, and your output grows by an even bigger percentage, that's called increasing returns to scale. This means you are becoming more efficient.

🎯 Exam Tip: Increasing returns to scale occur when proportionate increase in all inputs leads to a more than proportionate increase in output.

Question 14. Which of the following is not a characteristic of land?
(a) It's a limited supply
(b) It is mobile
(c) Heterogeneous
(d) Gift of Nature
Answer: (b) It is mobile
In simple words: Land, in economics, is usually thought of as being fixed in one place. It cannot be easily moved from one location to another, unlike labor or capital.

🎯 Exam Tip: Key characteristics of land include its fixed supply, immobility, and being a 'free gift of nature', meaning it is not man-made.

Question 15. The product obtained from additional factors of production is termed as
(a) Marginal product
(b) Total product
(c) Average product
(d) Annual product
Answer: (a) Marginal product
In simple words: When you add one more unit of a resource, like one more worker, the extra output that you get from that one additional unit is called the marginal product.

🎯 Exam Tip: Marginal product is crucial for firms deciding whether to increase or decrease a particular input, as it directly shows the impact of one more unit.

Question 16. Modern economists have propounded the law of
(a) Increasing returns to scale
(b) Decreasing returns to scale
(c) Constant returns to scale
(d) All of the options
Answer: (a) Increasing returns to scale
In simple words: Modern economists have developed the idea that as businesses grow, they can become more efficient and get more output for each extra bit of input. This is called the law of increasing returns to scale.

🎯 Exam Tip: When discussing 'returns to scale', focus on the proportionate change in output relative to a proportionate change in all inputs in the long run.

Question 17. Producer's equilibrium is achieved at the point where
(a) Marginal rate of technical substitution (MRTS) is greater the price ratio
(b) MRTS is lesser than the price ratio
(c) MRTS and price ratio are equal to each other
(d) The slopes of isoquant and isocost lines are different.
Answer: (c) MRTS and price ratio are equal to each other
In simple words: A producer finds their best balance, meaning they produce most efficiently, when the rate at which they can swap one input for another (MRTS) matches the cost ratio of those inputs. This happens when the isoquant and isocost lines touch at one point.

🎯 Exam Tip: Producer's equilibrium is graphically represented by the tangency point of the isoquant and isocost line, indicating the most efficient combination of inputs.

Question 18. The relationship between the price of a commodity and the supply of a commodity is
(a) Negative
(b) Positive
(c) Zero
(d) Increase
Answer: (b) Positive
In simple words: Usually, if the price of something goes up, sellers want to offer more of it because they can make more money. So, a higher price usually leads to a higher supply, which is a positive relationship.

🎯 Exam Tip: The Law of Supply states that, ceteris paribus (all else being equal), there is a direct (positive) relationship between price and quantity supplied.

Question 19. If the average product is decreasing, then marginal product
(b) Must be less than the average product
(c) Must be increasing
(d) Both a and c
Answer: (b) Must be less than average product
In simple words: If the average output from each unit of input is going down, it means that the extra output from the newest unit added (marginal product) must be even lower than the current average. Think of a class average: if a new student scores below the average, the class average will fall.

🎯 Exam Tip: Remember the relationship: when marginal product is below average product, average product falls; when marginal product is above average product, average product rises.

Question 20. A production function measures the relation between
(a) Input prices and output prices
(b) Input prices and the quantity of output
(c) The number of inputs and the quantity of output.
(d) The number of inputs and input prices.
Answer: (c) The number of inputs and the quantity of output.
In simple words: A production function shows how much product you can make from a certain amount of resources like labor and capital. It links the quantity of things you put in to the quantity of things you get out.

🎯 Exam Tip: The core idea of a production function is to show the technical relationship between physical inputs and physical outputs, not their prices.

Part - B

Answer the Following Questions in One or Two Sentences.

Question 21. Classify the factors of production?
Answer: The factors of production are grouped into four main types: land, labor, capital, and organization. Land and labor are considered primary factors because they are fundamental resources, while capital and organization are secondary factors that enhance production. Every good or service requires a combination of these factors.
In simple words: Production factors are land, labor, capital, and organization. Land and labor are basic, while capital and organization help make things better.

🎯 Exam Tip: Clearly list all four factors and specify which are primary and which are secondary, as this distinction is key in economics.

Question 22. Define Labor according to Marshall.
Answer: According to Marshall, labor refers to the services offered by the factor of production called labor itself. These services help generate income for the person who provides the labor power. This highlights labor as a source of earnings.
In simple words: Marshall said that labor is the work people do to earn money. It is the effort they put in that creates income for them.

🎯 Exam Tip: When defining economic terms by specific economists, ensure you mention the economist's name and the core idea of their definition.

Question 23. State the production function?
Answer: The production function shows how the different resources used in production (inputs) are linked to the amount of goods or services produced (outputs) over a certain period. It tells us the maximum output that can be achieved from a given set of inputs.
In simple words: A production function tells you how much product you get from the resources you put in. It's a link between inputs and outputs.

🎯 Exam Tip: When stating the production function, emphasize that it’s a technical relationship showing maximum output for given inputs.

Question 24. Define the Marginal Product of a factor.
Answer: Marginal product is the extra output gained when one more unit of a variable input, like labor, is used. It can be found by subtracting the total product before the extra unit from the total product after it. It is an important concept for understanding how productive additional resources are.
Mathematically, it is expressed as:
\( MP = TP(n) - TP(n-1) \)
Or, as the ratio of change in total product to change in input units:
\( MP = \frac{\Delta TP}{\Delta N} \)
In simple words: Marginal product is the extra amount of goods made when you add just one more worker or machine. It's the change in total output divided by the change in input.

🎯 Exam Tip: Clearly state both definitions (additional output and ratio of changes) and provide the correct mathematical formulas to score full marks.

Question 25. What is the Iso - cost line?
Answer: An Iso-cost line shows all the different combinations of two production inputs, like labor and capital, that a firm can buy for a fixed total cost. It helps businesses see which input mix they can afford for a given budget. The slope of the iso-cost line reflects the relative prices of the inputs.
In simple words: An iso-cost line draws out all the ways a company can combine different resources, like workers and machines, while spending the same total amount of money.

🎯 Exam Tip: Emphasize that an iso-cost line represents a constant total expenditure on inputs, similar to a budget line for consumers.

Part - C

Answer the Following Questions in One Paragraph.

Question 26. What are the conditions for the producer's equilibrium?
Answer: For a producer to reach equilibrium, meaning to achieve the highest possible output for a given cost, two main conditions must be met. First, the iso-cost line, which shows input combinations for a fixed cost, must touch the iso-quant curve, which shows input combinations for a fixed output. Second, at this point where they touch, the iso-quant curve needs to be convex (curving inwards) to the origin, or the marginal rate of technical substitution (MRTSLK) must be decreasing. This ensures the firm is using inputs in the most efficient way.
In simple words: A producer is at its best when its cost line just touches its production line. Also, at that touching point, the production line should be curved inwards.

🎯 Exam Tip: Remember the two key conditions: tangency of iso-cost and iso-quant curves, and the convexity of the iso-quant curve at that point (implying decreasing MRTSLK).

Question 27. What are the reasons for the upward-sloping supply curve?
Answer: The supply curve slopes upwards because there is a direct relationship between the price of a product and the quantity sellers are willing to offer. As the market price of a good rises, producers find it more profitable to produce and supply more of that good, leading to an increase in the quantity supplied. This positive relationship is a fundamental concept in economics, reflecting the profit motive of producers.
The diagram below illustrates this relationship:

In simple words: When a product's price goes up, companies want to sell more because they can earn more money. This desire to sell more at higher prices makes the supply curve slope upwards.

🎯 Exam Tip: Always explain the positive correlation between price and quantity supplied, and ensure your diagram correctly shows an upward-sloping supply curve.

Question 28. What are the characteristics of land?
Answer: Land has several unique features that distinguish it as a factor of production.
1. Land is a fundamental input, meaning it is a primary factor of production.
2. It is also considered a passive factor, as it cannot produce anything on its own without human effort.
3. Land is a natural resource, a free gift from nature, not created by human effort.
4. Historically, land itself had no direct cost of production for society.
5. Its supply is fixed and cannot be easily increased, making it inelastic in supply.
6. Land is durable and cannot be moved from one place to another; it is permanent and immovable.
7. Different plots of land have varying qualities and uses, making it heterogeneous, and it can be used for various purposes.
8. Finally, land is subject to the law of diminishing returns, meaning that beyond a certain point, adding more labor or capital to a fixed piece of land will yield less additional output.
In simple words: Land is a basic, natural, fixed resource that cannot move. It is different in quality everywhere and, if you keep adding more to it, its extra usefulness eventually goes down.

🎯 Exam Tip: When listing characteristics of land, ensure you mention its fixed supply, immobility, and status as a 'free gift of nature', as these are fundamental points.

Question 29. What are the factors governing the elasticity of supply?
Answer: Several important factors influence how responsive the supply of a commodity is to changes in its price.
1. The nature of the commodity plays a role: goods that last a long time (durable goods) usually have a high elasticity of supply because production can be adjusted more easily, while perishable items have a low elasticity as they spoil quickly.
2. The cost of production also matters: if increasing production leads to constant or increasing returns (lower costs per unit), supply will be more elastic. If it leads to diminishing returns (higher costs per unit), supply will be less elastic.
3. Technical conditions are another factor: in large-scale production, it is harder to quickly change the amount supplied, making elasticity lower. Smaller-scale production, on the other hand, allows for easier adjustments.
4. Finally, the time factor is critical: in a very short time frame, supply is fixed. In the short period, only some factors can be changed, making supply somewhat elastic. In the long run, all factors can be adjusted, so supply becomes highly elastic. These factors collectively determine how flexibly producers can respond to price changes.
In simple words: How much supply changes with price depends on many things. It depends on if the goods last long or spoil fast, how much it costs to make more, how easy it is to change production methods, and how much time producers have to react.

🎯 Exam Tip: When explaining factors of supply elasticity, remember that longer time periods generally allow for greater elasticity, and the nature of the good (perishable vs. durable) is also a strong determinant.

Question 30. What are the functions of entrepreneurs?
Answer: Entrepreneurs perform several vital functions that drive economic activity and business growth.
1. An entrepreneur acts as the initiator, starting new businesses and bringing ideas to life.
2. Successful entrepreneurs are consistently innovators, always seeking new methods, products, or ways to improve existing ones.
3. They are responsible for coordinating the various factors of production, such as land, labor, and capital, to set up and effectively run the business.
4. Entrepreneurs also control and direct these factors to achieve better outcomes, supervising all operations to ensure efficient functioning.
5. Crucially, they undertake the risks and bear the uncertainties associated with business ventures, making decisions without full knowledge of future outcomes. These roles are essential for any new or growing enterprise.
In simple words: Entrepreneurs start businesses, bring new ideas, manage all the resources, make sure everything runs well, and take on the risks involved.

🎯 Exam Tip: Focus on the four core functions: initiation, innovation, coordination, and risk-bearing, as these are universally recognized roles of an entrepreneur.

Question 31. State and explain the elasticity of supply?
Answer: Elasticity of supply measures how much the quantity of a product supplied by sellers changes when its price changes. It shows the degree of responsiveness of supply to price variations. If a small price change leads to a large change in quantity supplied, the supply is considered elastic; if it leads to a small change, it's inelastic. Understanding elasticity helps producers predict how their supply will react to market price shifts.
Mathematically, it is expressed as:
Elasticity of supply = Proportionate change in supply / Proportionate change in price
\( e_s = \frac { \Delta Q_S }{ Q_S } \div \frac { \Delta P }{ P } \)
\( e_s = \frac { \Delta Q_S }{ \Delta P } \times \frac { P }{ Q_S } \)
Where \( Q_S \) represents the quantity supplied, \( P \) represents price, and \( \Delta \) denotes a change.
In simple words: Elasticity of supply tells us how much sellers will change the amount they sell if the price changes. If price goes up a little and they sell a lot more, it's elastic. If they sell almost the same amount, it's inelastic.

🎯 Exam Tip: When defining elasticity of supply, always mention 'responsiveness' and provide both the conceptual and mathematical definitions, explaining each variable.

Question 32. Bring out the Relationship among Total, Average and Marginal Products?
Answer: The relationship between Total Product (TP), Average Product (AP), and Marginal Product (MP) is crucial for understanding production decisions in the short run. These three measures of output change in predictable ways as more units of a variable input are added to a fixed input. Understanding these relationships helps a firm optimize its resource use for maximum output.

🎯 Exam Tip: Focus on understanding how the curves for TP, MP, and AP interact at different stages, particularly where MP crosses AP (at AP's maximum) and where MP is zero (at TP's maximum).

Question 33. Illustrate the concept of producer's Equilibrium?
Answer: Producer's equilibrium refers to the situation where a producer achieves the maximum possible output from a given set of inputs and budget, or produces a specific output at the lowest possible cost. This is also known as the optimum combination of factors of production. It's the point where a firm uses its resources most efficiently.
Achieving this optimum combination means either maximizing output for the inputs used or minimizing the cost for a desired output level.
The conditions for a producer's equilibrium are:
1. The Iso-cost line, representing all combinations of inputs that can be purchased for a given total cost, must be tangent to (just touch) the Iso-quant curve, which shows all combinations of inputs that yield the same level of output.
2. At this point of tangency, the Iso-quant curve must be convex to the origin, which means the Marginal Rate of Technical Substitution (MRTSLK) must be declining. This ensures that the equilibrium point is stable and represents the most efficient resource allocation.
In simple words: A producer is in balance when they get the most product for their money, or make a certain amount of product for the least cost. This happens when their budget line touches their production line, and that production line is curved in a specific way.

🎯 Exam Tip: A complete answer must define producer's equilibrium and clearly state the two tangency conditions involving iso-cost and iso-quant curves, along with the convexity condition.

Question 34. State the Cobb-Douglas Production Function.
Answer: The Cobb-Douglas production function is a widely used economic model that describes how inputs like capital and labor can be combined to produce output. It was developed by economists Charles W. Cobb and Paul H. Douglas.
This function helps illustrate the relationship between the quantities of two or more inputs (most commonly capital and labor) and the maximum output that can be produced with those inputs.
The general form of the Cobb-Douglas production function is:
\( Q = A L^\alpha K^\beta \)
Where:
\( Q \) = represents the total output
\( A \) = is a positive constant, often representing total factor productivity or technology
\( L \) = represents labor input
\( K \) = represents capital input
\( \alpha \) and \( \beta \) = are the elasticity coefficients of output with respect to labor and capital, respectively, indicating how much output changes when labor or capital changes.
Additionally, if \( \alpha + \beta = 1 \), it signifies constant returns to scale, meaning that doubling all inputs results in a doubling of output.
In simple words: The Cobb-Douglas formula shows how much a company can make using different amounts of workers and machines. It helps explain how output changes when you change your inputs.

🎯 Exam Tip: Clearly state the formula and define each variable (Q, A, L, K, α, β). Mentioning the developers and the significance of \( \alpha + \beta = 1 \) adds depth to your answer.

Part - D

Answer the Following Questions in About a Page.

Question 35. Examine the Law of Variable Proportions with the help of a diagram?
Answer: The Law of Variable Proportions, also known as the Law of Diminishing Marginal Returns, is a fundamental concept in economics that explains short-run production behavior. It describes how output changes when one input is varied while others are kept fixed. This law is crucial for understanding a firm's production decisions.
The law states that if all other factors of production are held constant and only one input is continuously increased, the total output will initially rise at an increasing rate, then increase at a diminishing rate, reach a maximum, and eventually start to decrease. Consequently, the marginal product of the variable input will first increase, then diminish, become zero, and finally turn negative.
According to G. Stigler, "As equal increments of one input are added, the other productive services being held constant, beyond a certain point, the resulting increments of the product will decrease, i.e., the marginal product will diminish."

Assumptions of the Law of Variable Proportions:
1. Only one factor of production is variable; all other factors are kept constant.
2. All units of the variable factor are considered homogeneous (identical in quality).
3. The product is measured in physical units.
4. There is no change in the state of technology during the production process.
5. There is no change in the price of the product.

Definitions of Key Product Concepts:
Total Product (TP): This refers to the total amount of commodity produced by using all inputs over a specific period. It is the sum of all marginal products.
Average Product (AP): This is the output produced per unit of the variable input. It is calculated by dividing the total product by the number of units of the variable input (N).
Formula: \( AP = \frac{TP}{N} \)
Marginal Product (MP): This is the additional output generated when one more unit of the variable input is employed. It is the ratio of the change in total product to the change in input units.
Formula: \( MP = TP(n) - TP(n-1) \) or \( MP = \frac{\Delta TP}{\Delta N} \)

Production Schedule Illustrating the Law: