• Title of article

    Convexity of the optimal stopping boundary for the American put option

  • Author/Authors

    Erik Ekstr?m، نويسنده ,

  • Issue Information
    دوهفته نامه با شماره پیاپی سال 2004
  • Pages
    10
  • From page
    147
  • To page
    156
  • Abstract
    We show that the optimal stopping boundary for the American put option is convex in the standard Black–Scholes model. The methods are adapted from ice-melting problems and rely upon studying the behavior of level curves of solutions to certain parabolic differential equations.  2004 Elsevier Inc. All rights reserved
  • Keywords
    free boundary problem , optimal stopping , Options
  • Journal title
    Journal of Mathematical Analysis and Applications
  • Serial Year
    2004
  • Journal title
    Journal of Mathematical Analysis and Applications
  • Record number

    931506