| 31. |
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| 32. |
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| 33. |
- Puu, Tönu, 1936-
(författare)
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The chaotic duopolists revisited
- 1998
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Ingår i: Journal of Economic Behavior and Organization. - 0167-2681 .- 1879-1751. ; 33:3-4, s. 385-394
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The adjustment process of three oligopolists is studied, under Cournot and Stackelberg action. It is demonstrated that with an iso-elastic demand function and constant marginal costs, the system can result in periodic or in chaotic behaviour. In particular, the case with two identical and one different oligopolists is focused, which turns into a virtual duopoly, though displaying a wider set of bifurcations than can occur in genuine duopoly.
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| 34. |
- Puu, Tönu, 1936-
(författare)
-
Time and space in economic theory
- 1993
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Ingår i: Structure and Change in the Space Economy. - : Springer-Verlag. - 038756490X ; , s. 11-24
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 35. |
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| 36. |
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| 37. |
- Sushko, Irina, et al.
(författare)
-
Business Cycles : The Hicksian Floor-Roof Model Revisited
- 2002
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The Hicksian multiplieraccelerator model with the original floorroof limits to investments is studied for the case of two regions linked by interregional trade. The result is a piecewise linear continuous four dimensional map, which is reduced to three dimensions through the choice of an appropriate distributed consumption lag. The attractors, basins, and bifurcations of the map are studied under assumption of a certain symmetry between the regions. The NeimarkHopf bifurcation for piecewise linear maps is described in detail which gives rise to the appearance of an attracting closed invariant curve homeomorphic to a circle. The structure of resonance regions in the parameter space are investigated.
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| 38. |
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| 39. |
- Tramontana, Fabio, et al.
(författare)
-
New properties of the Cournot duopoly with isoelastic demand and constant unit costs
- 2010
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The object of the work is to perform the global analysis of the Cournot duopoly model with isoelastic demand function and unit costs, presented in Puu (1991). The bifurcation of the unique Cournot fixed point is established, which is a resonant case of the Neimark-Shacker bifurcation. New properties associated with the introduction of horizontal branches are evidenced. These properties di¤er significantly when the constant value is zero or positive and small. The good behavior of the case with positive constant is proved, leading always to positive trajectories. Also when the Cournot fixed point is unstable, stable cycles of any period may exist.
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