Question

What are the difficulties involved in the measurement of national income?

State four major difficulties in measuring national income.

State two difficulties in the measures of national income.

Explain any four major difficulties in the estimation of national income.

Answer 1

1. Lack of reliable data: In underdeveloped countries especially, obtaining reliable and adequate data is a major problem. Many sectors like horticulture, livestock, subsistence, and unincorporated sectors lack proper statistical coverage.
2. Classification problems: Difficulty arises in classifying different types of income into correct categories such as wages, rent, interest, profit, and mixed incomes. For example, allocating income from entrepreneurs or self-employed persons is complex due to mixed income sources.
3. Valuation issues: Problems exist in valuing inventories, depreciation, intermediate goods versus final goods, and imputed rents (e.g., rent of owner-occupied houses). Also, prices may fluctuate over time, complicating valuation.
4. Non-monetized transactions and barter: In developing economies, a large portion of economic activity may be through barter or informal exchange, making it difficult to estimate values in monetary terms.
5. Exclusion or inclusion of certain items: Deciding whether to include or exclude items such as imputed rent, services by housewives, second-hand goods, sale and purchase of bonds and shares, and illegal/unreported incomes creates difficulties.
6. Problems in differentiating consumption and investment: For example, expenditure on durable consumer goods sometimes blurs the distinction between consumption and investment expenditure.
7. Difficulty in measuring income from self-employment: Self-employed persons receive income at different points in time and maintain poor records, complicating accurate estimation.
8. Government expenditure challenges: Differentiating between government consumption and investment expenditure can be difficult.