Chapter 18: Investment and Capital Formation

1. Introduction

Investment is one of the most important determinants of economic growth. It increases the productive capacity of an economy by creating physical assets such as machinery, factories, roads, buildings and infrastructure.

Capital formation refers to the process of increasing the stock of productive assets in an economy through investment. In India, investment and capital formation are important components of aggregate demand as well as long-term productive capacity.

The Economic Survey 2025-26 reports that Gross Fixed Capital Formation (GFCF) remained an important driver of growth, with its share estimated at about 30.0% of GDP in FY26. :contentReference[oaicite:0]{index=0}

2. Meaning of Investment

In economics, investment means expenditure made for acquiring or creating productive assets that can generate goods and services in the future.

Examples include purchase of machinery, construction of factories, infrastructure development, construction of commercial buildings and investment in productive equipment.

3. Investment and Saving

Saving means that part of income which is not consumed, whereas investment means expenditure on productive assets.

In a simplified closed economy:

Saving = Investment

In an actual economy, investment can be financed through domestic saving, foreign capital, retained earnings, government resources and other financial sources.

4. Importance of Investment

• Increases productive capacity.
• Promotes economic growth.
• Creates employment opportunities.
• Improves productivity.
• Encourages technological progress.
• Develops infrastructure.
• Supports industrialisation.
• Promotes capital deepening.
• Improves competitiveness of the economy.
• Creates opportunities for future income generation.

5. Types of Investment

5.1 Gross Investment

Gross investment refers to the total expenditure on new capital assets without deducting depreciation.

5.2 Net Investment

Net investment is gross investment minus depreciation of existing capital.

Net Investment = Gross Investment − Depreciation

5.3 Fixed Investment

Investment in fixed productive assets such as machinery, equipment, factories, buildings and infrastructure is called fixed investment.

5.4 Inventory Investment

Change in the stock of raw materials, semi-finished goods and finished goods held by producers is called inventory investment.

5.5 Residential Investment

Investment in the construction or improvement of residential structures is called residential investment.

6. Public and Private Investment

7. Capital Formation

Capital formation is the process of increasing the stock of productive capital in an economy.

It involves saving, mobilisation of financial resources and their conversion into productive investment.

Stages of Capital Formation

1. Generation of savings.
2. Mobilisation of savings.
3. Investment of savings in productive assets.
4. Increase in productive capital stock.

8. Gross Capital Formation

Gross Capital Formation (GCF) represents additions to the stock of produced assets during a period, including investment in fixed assets, changes in inventories and valuables.

The national accounts framework separately presents Gross Fixed Capital Formation, changes in inventories and valuables as components associated with capital formation. :contentReference[oaicite:1]{index=1}

9. Gross Fixed Capital Formation (GFCF)

Gross Fixed Capital Formation refers to expenditure on acquiring or producing fixed assets that are used repeatedly or continuously in production.

Examples of GFCF

• Machinery and equipment.
• Factories and industrial buildings.
• Transport infrastructure.
• Roads and bridges.
• Railways and other infrastructure.
• Irrigation and other productive infrastructure.
• Construction of residential structures.

10. Gross Capital Formation vs GFCF

11. Depreciation

Depreciation refers to the loss in value or productive capacity of fixed capital assets due to wear and tear, obsolescence and normal usage.

Therefore:

Net Capital Formation = Gross Capital Formation − Consumption of Fixed Capital

12. Factors Affecting Investment

• Expected rate of return.
• Interest rate.
• Demand conditions.
• Business confidence.
• Availability of credit.
• Government policies.
• Tax structure.
• Infrastructure availability.
• Technological development.
• Political and economic stability.
• Availability of skilled labour.
• Domestic and global economic conditions.

13. Investment Multiplier

The investment multiplier explains how an initial increase in investment can lead to a multiple increase in aggregate income.

In the simplest Keynesian model:

K = 1 / (1 − MPC)

Where:

• K = Investment Multiplier
• MPC = Marginal Propensity to Consume

Since MPS = 1 − MPC:

K = 1 / MPS

14. Accelerator Principle

The accelerator principle states that changes in demand or output can induce changes in investment in productive capacity.

When expected demand rises, firms may increase investment in machinery, equipment and production capacity.

15. Capital-Output Ratio

Capital-output ratio indicates the amount of capital required to produce a given amount of output.

Capital-Output Ratio = Capital Stock / Output

A lower capital-output ratio generally indicates that a given amount of output can be produced with relatively less capital, while a higher ratio indicates greater capital requirements.

16. Investment and Economic Growth

Investment contributes to economic growth through two major channels:

1. Demand effect: Investment expenditure increases aggregate demand in the economy.
2. Capacity effect: New capital assets increase the productive capacity of the economy.

Thus, investment can influence both present economic activity and future production capacity.

17. Investment in Infrastructure

Infrastructure investment creates the physical foundation required for economic activity.

• Roads and highways.
• Railways.
• Ports and airports.
• Electricity generation and transmission.
• Irrigation.
• Telecommunications.
• Digital infrastructure.
• Urban infrastructure.
• Water and sanitation systems.

18. Public Capital Expenditure

Public capital expenditure refers to government expenditure that creates or improves long-term assets and productive infrastructure.

Public capital expenditure can crowd in private investment by improving infrastructure, connectivity, logistics and the overall business environment.

19. Crowding-In Effect

When public investment encourages or stimulates private investment, the phenomenon is known as the crowding-in effect.

For example, government investment in roads, electricity and logistics can reduce business costs and encourage private firms to invest.

20. Crowding-Out Effect

When increased government borrowing or government activity reduces the availability of funds for private investment, it may produce a crowding-out effect.

The magnitude of crowding out depends on monetary conditions, financial market conditions, government borrowing and the availability of savings.

21. Foreign Investment

Foreign investment refers to investment made by investors or entities from one country in another country.

Major Forms

• Foreign Direct Investment (FDI).
• Foreign Portfolio Investment (FPI).
• Other foreign financial flows.

22. Role of FDI in Capital Formation

• Provides additional capital.
• Can increase productive capacity.
• Can facilitate technology transfer.
• Can improve managerial practices.
• Can create employment opportunities.
• Can integrate domestic firms with global production networks.
• Can support infrastructure and industrial development.

The Economic Survey 2025-26 notes that cross-border financial flows, including FDI and portfolio investment, are an important mechanism of India's integration with global capital markets. :contentReference[oaicite:2]{index=2}

23. Sources of Investment Finance

• Household savings.
• Corporate savings.
• Government savings and resources.
• Commercial bank credit.
• Capital markets.
• Foreign Direct Investment.
• Foreign Portfolio Investment.
• External borrowing.
• Development financial institutions.

24. Role of Financial System in Investment

The financial system connects savers with investors. Banks, financial institutions, stock markets, bond markets and other financial intermediaries help mobilise savings and channel them toward productive investment.

Major Functions

• Mobilisation of savings.
• Allocation of financial resources.
• Provision of credit.
• Risk management.
• Facilitation of investment.
• Development of capital markets.

25. Investment and Capital Market

Capital markets provide long-term finance to governments, companies and other institutions. Equity shares and bonds are important instruments through which investment funds can be raised.

• Equity: Represents ownership in a company.
• Bond: Represents a debt obligation.
• IPO: Initial Public Offering through which a company offers shares to the public for the first time.

26. Investment in Manufacturing

Investment in manufacturing increases production capacity, supports employment and can improve India's integration into global value chains.

• Modern machinery.
• Advanced technology.
• Industrial infrastructure.
• Research and development.
• Skill development.
• Supply-chain infrastructure.

27. Investment in Agriculture

Agricultural investment is necessary for increasing productivity, reducing post-harvest losses and improving farmers' market access.

• Irrigation infrastructure.
• Farm mechanisation.
• Storage facilities.
• Cold-chain infrastructure.
• Food processing.
• Research and development.
• Rural roads and market infrastructure.

28. Investment and Employment

Investment can generate employment directly through construction and production activities and indirectly through demand for inputs, transportation, logistics and supporting services.

29. Investment and Productivity

Investment in modern machinery, technology, infrastructure and human capital can improve labour productivity and total factor productivity.

Higher productivity can improve the competitiveness of firms and support long-term economic growth.

30. Barriers to Investment in India

• High cost of finance.
• Regulatory uncertainty.
• Land-related difficulties.
• Infrastructure bottlenecks.
• Logistics costs.
• Skill shortages.
• Weak demand conditions.
• Global economic uncertainty.
• Delayed project execution.
• Financial sector constraints.

31. Measures to Promote Investment

• Improvement in ease of doing business.
• Development of infrastructure.
• Stable and predictable policy environment.
• Improved access to finance.
• Development of capital markets.
• Skill development.
• Promotion of innovation and technology.
• Efficient logistics.
• Public-private partnerships.
• Promotion of domestic and foreign investment.

32. Investment and Infrastructure in India

Infrastructure investment has a strong link with economic growth because better connectivity, electricity, logistics and digital infrastructure reduce transaction costs and increase productive efficiency.

The Economic Survey 2025-26 identifies investment and infrastructure as important areas for strengthening connectivity, capacity and competitiveness. :contentReference[oaicite:3]{index=3}

33. Current Investment Trend in India

According to the Economic Survey 2025-26, GFCF growth increased by 7.6% in H1 FY26. The Survey also reported that GFCF remained around 30.5% of GDP in H1 FY26, indicating the continuing importance of investment in India's growth process. :contentReference[oaicite:4]{index=4}

The same Survey reported strong public capital expenditure and an improvement in private corporate investment announcements during H1 FY26. :contentReference[oaicite:5]{index=5}

34. Investment and Capital Formation: India Perspective

35. Bihar and Investment

Bihar has significant investment requirements in infrastructure, agriculture, food processing, manufacturing, urban development, education, health, logistics and tourism.

Important Areas for Investment in Bihar

• Agricultural infrastructure.
• Food processing industries.
• Cold storage and supply chains.
• Road and transport infrastructure.
• Industrial parks.
• Renewable energy.
• Urban infrastructure.
• Education and skill development.
• Healthcare infrastructure.
• Tourism and heritage infrastructure.

36. Capital Formation and Human Capital

Capital formation is not limited to physical assets. Investment in education, health, training and skills creates human capital, which increases the productive capabilities of people.

Thus, physical capital and human capital complement each other in the development process.

37. Physical Capital vs Human Capital

38. Important BPSC Terms

39. Important Facts for BPSC

• Investment increases the productive capacity of an economy.
• Capital formation means an increase in the stock of productive capital.
• Gross investment includes depreciation, while net investment deducts depreciation.
• GFCF measures investment in fixed assets.
• Inventory investment refers to changes in stocks held by producers.
• Public investment can create infrastructure and may encourage private investment.
• FDI is generally associated with a lasting interest and influence in an enterprise.
• FPI mainly involves investment in financial securities.
• Investment affects both aggregate demand and productive capacity.
• Human capital is created through investment in education, health and skills.
• Infrastructure investment can improve productivity and connectivity.
• Economic Survey 2025-26 reports GFCF growth of 7.6% in H1 FY26. :contentReference[oaicite:6]{index=6}
• Economic Survey 2025-26 reports GFCF at about 30.5% of GDP in H1 FY26. :contentReference[oaicite:7]{index=7}

40. Quick Revision

1. Investment → Expenditure on productive assets.
2. Capital Formation → Increase in productive capital stock.
3. Gross Investment → Investment before deducting depreciation.
4. Net Investment → Gross Investment − Depreciation.
5. GFCF → Investment in fixed assets.
6. Inventory Investment → Change in inventories.
7. FDI → Direct foreign investment.
8. FPI → Investment in financial securities by foreign investors.
9. Multiplier → Investment creates a multiple change in income.
10. Accelerator → Change in demand/output influences investment.
11. Crowding-in → Public investment encourages private investment.
12. Crowding-out → Government activity can reduce private investment under certain conditions.
13. Physical Capital → Machines, buildings and infrastructure.
14. Human Capital → Education, skills and health.

41. BPSC One-Line Memory Trick

Saving → Investment → Capital Formation → Productive Capacity → Employment → Productivity → Economic Growth.