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Non-linear endogenous fluctuations with free entry and variable markups

机译:带有自由进入和可变标记的非线性内生波动

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The paper explores the effects of markup variability, associated with free entry of Cournotian firms, on the occurrence of local indeterminacy, local Hopf bifurcations and multiplicity of steady states. It uses an overlapping generations model with capital, in which differentiated intermediate goods are produced with constant marginal cost plus a positive fixed cost. If the markup factor were constant (the case of no free entry or the case of zero fixed costs leading to the perfectly competitive outcome), no local endogenous fluctuations or multiplicity of steady states can emerge, unless factors of production are complementary. On the contrary, with any positive (variable) market power, indeterminacy and multiplicity of steady states is possible for any value of the elasticity of technological substitution, and local Hopf bifurcations may also emerge, provided (variable) market power is high enough.
机译:本文探讨了与库尔诺式公司的自由进入相关的加价变动对局部不确定性,局部霍普夫分支和稳态多重性的影响。它使用资本重叠的世代模型,在这种模型中,差异化的中间产品以恒定的边际成本加正的固定成本生产。如果加价因子是恒定的(没有自由进入的情况或固定成本为零的情况下导致完全竞争的结果),那么除非生产要素是互补的,否则就不会出现局部的内生性波动或稳态的多重性。相反,对于任何正的(可变的)市场力量,只要技术替代弹性的任何值,稳态的不确定性和多重性都是可能的,并且只要(可变的)市场力量足够高,局部霍普夫分叉也可能出现。

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