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Optimal portfolio for a small investor in a market model with discontinuous prices

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Abstract

A consumption-investment problem is considered for a small investor in the case of a market model in which prices evolve according to a stochastic equation with a jump-process component. The techniques we use include the martingale representation theorem, Lagrange multiplier methods, and Markovian methods for the resolution of stochastic differential equations. We establish a Black-Scholes formula.

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References

  1. K. K. Aase and B. Øksendal. Admissible investment strategies in continuous trading. Stochastic Process. Appl., 30 (1988), 291–301.

    Google Scholar 

  2. A. Bensoussan. Stochastic Control by Functional Analysis Methods. North-Holland, Amsterdam, 1982.

    Google Scholar 

  3. P. Brémaud. Point Processes and Queues. Springer-Verlag, New York, 1981.

    Google Scholar 

  4. J. Cox and S. Ross. The valuation of options for alternative stochastic processes. J. Financial Econ., January (1976), 145–166.

    Google Scholar 

  5. R. W. R. Darling. Convergence of martingales on manifolds. Ann. Inst. H. Poincaré, 21 (3) (1985), 157–175.

    Google Scholar 

  6. D. Duffie. Stochastic equilibria; existence, spanning number and the “no expected financial gain from trade” hypothesis. Econometrica, 54 (9) (1986), 1161–1183.

    Google Scholar 

  7. D. Duffie. An extension of the Black-Scholes model of security valuation. J. Econ. Theory, 46 (1) (1988), 194–204.

    Google Scholar 

  8. D. Duffie and C. H. Huang. Implementing Arrow-Debreu equilibria by continuous trading of few long-lived securities. Econometrica, 53 (6) (1985), 1337–1355.

    Google Scholar 

  9. A. Friedman. Stochastic Differential Equations and Applications, Vol. 1. Academic Press, New York, 1975.

    Google Scholar 

  10. L. I. Galtchouk. Représentation des martingales engendrées par un processus à accroissements indépendants. Ann. Inst. Poincaré. Sect. B, 12 (3) (1976), 199–211.

    Google Scholar 

  11. F. Gimbert and P. L. Lions. Existence and regularity results for solutions of second-order elliptic integro-differential operators. Ricerche Mat. XXXIII (2) (1984), 315–358.

    Google Scholar 

  12. J. M. Harrison and D. M. Kreps. Martingales and arbitrage in multiperiod securities markets. J. Econ. Theory, 20 (1979), 391–408.

    Google Scholar 

  13. J. M. Harrison and S. R. Pliska. Martingales and stochastic integrals in the theory of continuous trading. Stochastic Process. Appl., 11 (1981), 215–260.

    Google Scholar 

  14. N. Ikeda and S. Watanabe. Stochastic Differential Equations and Diffusion Processes. North-Holland, Amsterdam, 1981.

    Google Scholar 

  15. J. Jacod. Calcul Stochastique et Problèmes de Martingales. Lecture Notes in Mathematics, Vol. 714. Springer-Verlag, Berlin, 1979.

    Google Scholar 

  16. R. A. Jarrow and A. Rudd. Option Pircing. Irwin, 1983.

  17. I. Karatzas. On the pricing of American options. Appl. Math. Optim., 17 (1988), 37–60.

    Google Scholar 

  18. I. Karatzas. Optimization problems in the theory of continuous trading. SIAM J. Control Optim., 27 (6) (1989), 1221–1259.

    Google Scholar 

  19. I. Karatzas, J. P. Lehoczky and S. E. Shreve. Optimal portfolio and consumption decisions for a “small investor” on a finite horizon. SIAM J. Control Optim., 25 (6) (1987), 1557–1586.

    Google Scholar 

  20. N. Y. Krylov. Controlled Diffusion Processes. Springer-Verlag, New York, 1980.

    Google Scholar 

  21. D. Lépingle and J. Mémin. Sur l'intégrabilité uniforme des martingales exponentielles. Z. Warsch. Verw. Geibte, 42 (1978), 175–203.

    Google Scholar 

  22. P. L. Lions. Generalized Solutions of Hamilton Jacobi Equations. Pitman, London, 1982.

    Google Scholar 

  23. R. C. Merton. Optimum consumption and portfolio rules in a continuous time model. J. Econ. Theory, 3 (1971), 373–413.

    Google Scholar 

  24. R. C. Merton. Option pricing when underlying stock returns are discontinuous. J. Financial Econ., 3 (1976), 125–144.

    Google Scholar 

  25. H. Pagès. Three Essays in Optimal Consumption. Thesis, MIT, 1989.

  26. C. Stricker. Integral representation in the theory of continuous trading. Stochastics, 13 (1984), 249–265.

    Google Scholar 

  27. J. Szpirglas and G. Mazziotto. Modèle général de filtrage non linéaire et équations différentielles stochastiques associées. Ann. Inst. H. Poincaré, 15 (2) (1979), 147–173.

    Google Scholar 

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Communicated by A. Bensoussan

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Jeanblanc-Picqué, M., Pontier, M. Optimal portfolio for a small investor in a market model with discontinuous prices. Appl Math Optim 22, 287–310 (1990). https://doi.org/10.1007/BF01447332

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