Corpus ID: 238408461

Risk aversion and uniqueness of equilibrium: a polynomial approach

  title={Risk aversion and uniqueness of equilibrium: a polynomial approach},
  author={Andrea Loi and Stefano Matta},
is unique. Moreover, the methods used, involving Newton’s symmetric polynomials and Descartes’ rule of signs, enable us to offer new sufficient conditions for uniqueness in a closed-form expression highlighting the role played by endowments, patience and specific HARA parameters. Finally, new necessary and sufficient conditions in ensuring uniqueness are derived for the particular case of CRRA Bernoulli utility functions with γ = 3. 

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