Cement shop owner: Self-employed, as the individual operates and manages their business independently.
Construction worker: Categorized as a casual wage laborer, undertaking temporary paid work on diverse projects.
Civil engineer: A regular salaried professional engaged by corporations or organizations.
For a hypothetical economy, assume the government increased infrastructural investment by ₹10,000 crore. 80% of additional income is consumed in the economy. Estimate the increase in income and the corresponding increase in consumption expenditure in the economy.