PRIVILEGGI Fabio, Davide LA TORRE e Simone MARSIGLIO (2011), "Fractals and Self-Similarity in Economics: the Case of a Stochastic Two-Sector Growth Model", Image Analysis & Stereology, 30 (3), 143 - 151.
Codici J.E.L: C61, O41
Parole chiave: fractals, iterated function system, self-similarity, Sierpinski gasket, stochastic growth
We study a stochastic, discrete-time, two-sector optimal growth model in which the production of the homogeneous consumption good uses a Cobb-Douglas technology, combining physical capital and an endogenously determined share of human capital. Education is intensive in human capital as in Lucas (1988), but the marginal returns of the share of human capital employed in education are decreasing, as suggested by Rebelo (1991). Assuming that the exogenous shocks are i.i.d. and affect both physical and human capital, we build specific configurations for the primitives of the model so that the optimal dynamics for the state variables can be converted, through an appropriate log-transformation, into an Iterated Function System converging to an invariant distribution supported on a generalized Sierpinski gasket.
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Progetto di ricerca: Modelli stocastici con stati stazionari frattalici Di più...