Increasing Returns to Scale and Nonlinear Endogenous Fluctuations in a Simple Overlapping Generations Model: A Pedagogical Note
نویسنده
چکیده
– We study the role of increasing returns (in production) on the emergence of nonlinear endogenous fluctuations in a simple overlapping generations model. We specify conditions for the occurrence of local flip and Hopf bifurcations in terms of relevant parameters. We, also, present orbits exhibiting endogenous fluctuations, for some numerical examples. Our results, in compliance with other recent works, suggest that the environment in which endogenous fluctuations can emerge approaches those considered more plausible when there are increasing returns to scale. Rendements croissants d’échelle et fluctuations endogènes non linéaires dans un modèle simple à générations imbriquées : une note pédagogique RÉSUMÉ. – Nous étudions les effets des rendements croissants (dans la production) sur l’émergence de fluctuations endogènes non linéaires, dans un modèle simple à générations imbriquées. Les conditions garantissant l’occurrence des bifurcations locales flip et Hopf sont données sur un ensemble de paramètres pertinents. Nous présentons quelques exemples numériques d’orbites avec fluctuations endogènes. Les résultats, en accord avec d’autres études récentes, suggèrent que l’environnement économique favorable à l’émergence des fluctuations endogènes s’approche de ceux considérés comme plausibles en situation de rendements croissants d’échelle. * Teresa LLOYD-BRAGA: Universidade Católica Portuguesa, Faculdade e Ciências Económicas e Empresariais, Lisboa. ANNALES D’ÉCONOMIE ET DE STATISTIQUE. – N° 59 – 2000
منابع مشابه
FS I 01 - 209 Endogenous Fluctuations in the Demand for Education
Enrolment rates to higher education reveal quite large variation over time which cannot be explained by productivity shocks alone. We develop a human capital investment model in an overlapping generations framework that features endogenous fluctuations in the demand for education. Agents are heterogeneous in their beliefs about future wage differentials. An evolutionary competition between the ...
متن کاملEndogenous fluctuations in the demand for education
Enrolment rates to higher education reveal quite large variation over time which cannot be explained by productivity shocks alone. We develop a human capital investment model in an overlapping generations framework that features endogenous fluctuations in the demand for education. Agents are heterogeneous in their beliefs about future wage differentials. An evolutionary competition between the ...
متن کاملEstimating Returns to Scale in the Presence of Undesirable Factors in Data Envelopment Analysis
This research identifies returns to scale (RTS) of efficient decision making units (DMUs) with desirable (good) and undesirable (bad) inputs and outputs by presenting a new DEA (data envelopment analysis) approach. In this study, we first introduce a new input-output oriented model to determine efficient DMUs in the presence of undesirable factors and then, returns to scale of these DMUs are es...
متن کاملNonlinear dynamics and chaos in an OLG growth model with endogenous labour supply and multiplicative external habits
This paper analyses the mathematical properties of an overlapping generations growth model with endogenous labour supply and multiplicative external habits. The dynamics of the economy is characterised by a two-dimensional map describing the time evolution of capital and labour supply. We show that if the relative importance of external habits in the utility function is sufficiently high, multi...
متن کاملشبیه سازی یک الگوی نسل های همپوشان 55 دوره ای با رویکرد به سازی نظام بازنشستگی ایران
The ability of OLG models in analyzing and simulating the various fields of an economy, such as the investigation of endogenous growth policies, the development of intergenerational equity criteria and the reform of social security system, has caused these models to have a special position among economists in recent decades. However, difficulties in quantifying these models and analyzing their ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2000