TY - GEN AB - We show that the equivalence between certain problems of singular stochastic control (SSC) and related questions of optimal stopping known for convex performance criteria (see, for example, Karatzas and Shreve (1984)) continues to hold in a non convex problem provided a related discretionary stopping time is introduced. Our problem is one of storage and consumption for electricity, a partially storable commodity with both positive and negative prices in some markets, and has similarities to the finite fuel monotone follower problem. In particular we consider a non convex infinite time horizon SSC problem whose state consists of an uncontrolled diffusion representing a real-valued commodity price, and a controlled increasing bounded process representing an inventory. We analyse the geometry of the action and inaction regions by characterising the related optimal stopping boundaries. DA - 2014 KW - finite-fuel singular stochastic control KW - optimal stopping KW - free-boundary KW - smooth- fit KW - Hamilton-Jacobi-Bellman equation KW - irreversible investment LA - eng PY - 2014 SN - 0931-6558 SP - 25- TI - A non convex singular stochastic control problem and its related optimal stopping boundaries UR - https://nbn-resolving.org/urn:nbn:de:0070-pub-29015289 Y2 - 2024-11-22T03:02:25 ER -