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On Markovian Cake Sharing Problems


  • Hannu Salonen


Pure strategy Markov perfect equilibria (MPE) in dynamic cake sharing problems are analyzed. Each player chooses under perfect information how much to eat from the current cake and how much to leave to the next period. The left over cake grows according to a given growth function. With linear utilities and strictly concave increasing growth function the only symmetric equilibrium with continuous strategies is the trivial equilibrium in which a player eats the whole cake whenever it is his turn to move. This is quite different than in the corresponding single person decision problem (or at a social optimum) where the cake grows from small initial values towards the steady state. A non-trivial equilibrium with a positive steady state exist in the game. In such an equilibrium strategies cannot be continuous. When utilities are concave and the growth function is linear, a nontrivial MPE with a positive steady state may not exist.

Suggested Citation

  • Hannu Salonen, 2012. "On Markovian Cake Sharing Problems," Discussion Papers 72, Aboa Centre for Economics.
  • Handle: RePEc:tkk:dpaper:dp72

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    References listed on IDEAS

    1. Marco Battaglini & Salvatore Nunnari & Thomas Palfrey, 2011. "The Free Rider Problem: a Dynamic Analysis," Working Papers 1354, Princeton University, Department of Economics, Econometric Research Program..
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    More about this item


    common pool resources; dynamic cake sharing; Markov perfect equilibrium;

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games
    • D92 - Microeconomics - - Micro-Based Behavioral Economics - - - Intertemporal Firm Choice, Investment, Capacity, and Financing

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