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A Solvable Two-Dimensional Degenerate Singular Stochastic Control Problem with Nonconvex Costs

Author

Listed:
  • Tiziano De Angelis

    (School of Mathematics, University of Leeds, Leeds LS2 9JT, United Kingdom)

  • Giorgio Ferrari

    (Center for Mathematical Economics, Bielefeld University, D-33615 Bielefeld, Germany)

  • John Moriarty

    (School of Mathematical Sciences, Queen Mary University of London, London E1 4NS, United Kingdom)

Abstract

In this paper we provide a complete theoretical analysis of a two-dimensional degenerate nonconvex singular stochastic control problem. The optimisation is motivated by a storage-consumption model in an electricity market, and features a stochastic real-valued spot price modelled by Brownian motion. We find analytical expressions for the value function, the optimal control, and the boundaries of the action and inaction regions. The optimal policy is characterised in terms of two monotone and discontinuous repelling free boundaries, although part of one boundary is constant and the smooth fit condition holds there.

Suggested Citation

  • Tiziano De Angelis & Giorgio Ferrari & John Moriarty, 2019. "A Solvable Two-Dimensional Degenerate Singular Stochastic Control Problem with Nonconvex Costs," Mathematics of Operations Research, INFORMS, vol. 44(2), pages 512-531, May.
    • Handle: RePEc:inm:ormoor:v:44:y:2019:i:2:p:512-531
    DOI: 10.1287/moor.2018.0934
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    References listed on IDEAS

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    1. Tiziano De Angelis & Giorgio Ferrari & John Moriarty, 2014. "A Non Convex Singular Stochastic Control Problem and its Related Optimal Stopping Boundaries," Papers 1405.2442, arXiv.org, revised Nov 2014.
    2. Dayanik, Savas & Karatzas, Ioannis, 2003. "On the optimal stopping problem for one-dimensional diffusions," Stochastic Processes and their Applications, Elsevier, vol. 107(2), pages 173-212, October.
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    Cited by:

    1. Federico, Salvatore & Ferrari, Giorgio & Schuhmann, Patrick, 2019. "A Model for the Optimal Management of Inflation," Center for Mathematical Economics Working Papers 624, Center for Mathematical Economics, Bielefeld University.
    2. Dianetti, Jodi & Ferrari, Giorgio, 2021. "Multidimensional Singular Control and Related Skorokhod Problem: Suficient Conditions for the Characterization of Optimal Controls," Center for Mathematical Economics Working Papers 645, Center for Mathematical Economics, Bielefeld University.
    3. Salvatore Federico & Giorgio Ferrari & Patrick Schuhmann, 2019. "A Model for the Optimal Management of Inflation," Department of Economics University of Siena 812, Department of Economics, University of Siena.
    4. Andrea Bovo & Tiziano De Angelis & Jan Palczewski, 2023. "Zero-sum stopper vs. singular-controller games with constrained control directions," Papers 2306.05113, arXiv.org, revised Feb 2024.
    5. Dianetti, Jodi & Ferrari, Giorgio, 2023. "Multidimensional singular control and related Skorokhod problem: Sufficient conditions for the characterization of optimal controls," Stochastic Processes and their Applications, Elsevier, vol. 162(C), pages 547-592.
    6. Federico, Salvatore & Ferrari, Giorgio & Schuhmann, Patrick, 2020. "Singular Control of the Drift of a Brownian System," Center for Mathematical Economics Working Papers 637, Center for Mathematical Economics, Bielefeld University.
    7. Andrea Bovo & Tiziano De Angelis & Jan Palczewski, 2023. "Stopper vs. singular-controller games with degenerate diffusions," Papers 2312.00613, arXiv.org, revised Jul 2024.
    8. Jodi Dianetti & Giorgio Ferrari & Renyuan Xu, 2024. "Exploratory Optimal Stopping: A Singular Control Formulation," Papers 2408.09335, arXiv.org, revised Oct 2024.

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