## A Framework for Efficient Government Investment

_IMF Working Papers, February 28, 2013_

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## Bibliographic details
- Authors: Andrew M. Warner
- Published: February 28, 2013
- Series: IMF Working Papers
- DOI: https://doi.org/10.5089/9781475579147.001

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### Central argument and conceptual framework
- The familiar justification for state intervention: when spending provides public goods or corrects externalities, provided the social return is above a threshold.
- Additional consideration introduced: whether, despite externalities, the private sector has an incentive to undertake the activity.
- Combined criteria (externality presence + private-sector incentive) define a modified, more efficient framework for justifying state intervention.
- Under this modified framework, a benign state focused on social welfare:
  - Would not address every externality.
  - Would not necessarily select expenditures with the highest social returns.

### Analytical approach and tools
- The paper summarizes these points in a graph that:
  - Illustrates the joint role of externalities and private-sector incentives in guiding state intervention.
  - Is then used to analyze policy rules, subsidies, and state–private sector interaction.
- Emphasis on cost-benefit analysis and assessing return profiles to guide expenditure choices.

### Key findings
- State intervention should be guided by both:
  - The presence and magnitude of externalities/public goods considerations.
  - The existence (or absence) of private-sector incentives to undertake the activity despite those externalities.
- Subsidies and policy rules must be evaluated in light of how they alter private incentives, not only social returns.
- A framework that ignores private-sector incentives risks inefficient use of public funds even when social returns are high.

### Policy recommendations and implications
- Design subsidies and policy rules to account for the private-sector incentive structure so that public spending economizes without losing effectiveness.
- Do not assume that every externality warrants direct state provision; prioritize interventions where private incentives are weak and social returns justify state action.
- Collect and act on information about:
  - Social return magnitudes.
  - Private-sector incentive structures.
  - How policy instruments affect private participation and outcomes.

### Practical guidance on information needs
- Data and analysis should focus on:
  - Investment return profiles (social and private).
  - Scope and performance of government relative to market responses.
  - Cost-benefit assessments that explicitly model private-sector participation probabilities and incentive effects.

*Andrew M. Warner, "A Framework for Efficient Government Investment", IMF Working Papers 2013, 058 (February 28, 2013); Pages: 22; Volume: 2013; Issue: 058; DOI: https://doi.org/10.5089/9781475579147.001; ISBN: 9781475579147; ISSN: 1018-5941.*

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_Source: https://www.imf.org/en/publications/wp/issues/2016/12/31/a-framework-for-efficient-government-investment-40362_