 Scale‐dependent and risky returns to savings: Consequences for optimal capital taxationJournal of Public Economic Theory, 2023, vol. 25, issue 3, 532-569 Abstract: I present a model of optimal capital taxation where agents with heterogeneous labor productivity randomly draw their rate of return to savings. Because of scale dependence, the distribution of rates of returns can depend on the amount saved. Uncertainty in returns to savings yields an insurance rationale for taxing capital on top of labor income. I first show that, because of scale dependence, agents making the same saving decision should access the same rate of return at the optimum. I then constrain the information set of the government and show that, as soon as return are uncertain, positive capital income taxation is needed at the optimum. The optimal linear tax on capital income trades off insurance with distortions to both savings and to the rate of return in a context of scale dependence. Eventually, I argue that scale dependence in and of itself is not sufficient to justify capital taxation on top of labor income taxes. These results are still valid when agents can optimize between a risk‐free and a risky‐asset that can both exhibit scale dependence. Date: 2023 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:bla:jpbect:v:25:y:2023:i:3:p:532-569 Ordering information: This journal article can be ordered from Access Statistics for this article Journal of Public Economic Theory is currently edited by Rabah Amir, Gareth Myles and Myrna Wooders More articles in Journal of Public Economic Theory from Association for Public Economic Theory Contact information at EDIRC. |
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