Q.Write any four practical difficulties in national income estimation.

Estimating national income accurately is hard in India because of double counting, a large non-monetised sector, poor and unreliable data, and output produced for self-consumption. These practical difficulties are explained below.

National income estimation faces both conceptual and practical difficulties. Four important practical difficulties are:

1. Problem of double counting. If both the value of intermediate goods and the value of final goods are added, the same output gets counted more than once and national income is overstated. Separating final goods from intermediate goods correctly is difficult in practice, so avoiding double counting is a real problem.
2. Existence of a non-monetised (barter) sector. In a large part of the Indian rural economy, goods and services are exchanged without money (for example, payment of wages in kind or exchange of goods). Since these transactions are not expressed in money terms, their value is hard to measure and is often left out.
3. Lack of reliable and adequate data. A large part of the economy is unorganised (small farmers, petty traders, household enterprises) and does not maintain proper accounts. The statistical information available is often incomplete, inaccurate or out of date, making correct estimation difficult. …