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Resolving the Discounting Dilemma

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  • Szekeres, Szabolcs

Abstract

Social Time Preference (STP) and Social Opportunity Cost (SOC) discounting differ in their objectives, but STP discounting measures capital costs incorrectly. The two-rate discounting method proposed here corrects this error, which current methods of shadow pricing capital (SPC) don’t. Thereafter project choice discrepancies between alternative methods decrease substantially and the choice between them becomes unambiguous. The SOC rate is the hurdle feasibility rate either way. The marginal cost of public funds (MCF) correction is not an alternative to SPC correction; both must be used in conjunction when warranted. The Ramsey equation is a tautology that cannot predict the STP rate.

Suggested Citation

  • Szekeres, Szabolcs, 2024. "Resolving the Discounting Dilemma," MPRA Paper 120014, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:120014
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    References listed on IDEAS

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    JEL classification:

    • D61 - Microeconomics - - Welfare Economics - - - Allocative Efficiency; Cost-Benefit Analysis
    • H43 - Public Economics - - Publicly Provided Goods - - - Project Evaluation; Social Discount Rate

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