Rethinking the Quality of Public Expenditure

What makes public expenditure effective?

Public budgets are often judged by their headline size, but the article argues that expenditure quality matters far more than the amount spent. A government can spend the same amount as another government while producing very different outcomes depending on what it spends on, how efficiently resources are used and whether spending ultimately improves people's lives or strengthens the economy.

The article develops this argument around three dimensions of expenditure quality: composition, efficiency and outcomes. It examines the conventional distinction between developmental and non-developmental expenditure as well as revenue and capital expenditure, while arguing that neither distinction alone provides an adequate measure of spending quality. Capital expenditure, for instance, does not automatically create public value if infrastructure is poorly implemented or lacks the resources needed to function. At the same time, revenue expenditure such as spending on teachers, doctors, maintenance and public services can be essential to making public infrastructure productive.

The article then examines the Reserve Bank of India's Quality of Public Expenditure (QPE) index, which combines indicators relating to capital outlay, revenue expenditure, developmental expenditure and interest payments. While the index provides a systematic way of assessing the composition of expenditure, the article highlights an important limitation: an allocation measure cannot by itself tell us whether the money was implemented effectively or whether it produced the intended outcomes.

The Golden Quadrilateral is used to illustrate this distinction between expenditure, output and outcome. The significance of the project lies not simply in the construction of highways but in the economic effects associated with the resulting connectivity, including changes in manufacturing activity and firm entry. The article also discusses international approaches to expenditure quality, including public investment management, performance budgeting and project appraisal.

Finally, the article looks at India's Output-Outcome Monitoring Framework, gender budgeting and municipal-level performance and climate budgeting. It argues that strengthening expenditure evaluation requires governments to connect budget priorities with effective implementation and measurable results. The central question is therefore not simply how much a government spends, but what that spending ultimately achieves.

There is more to public spending than the size of the budget. Click below to read the full piece.