Machine replacement, Network Externalities and Investment Cycles
AbstractThis paper presents a model where agents decide on the timing of replacement of ageing machines. The optimal replacement policy for an agent is influenced by other agents' decisions because the productivity of a particular vintage displays network externalities that set in with a lag. In equilibrium, agents follow innovation cycles with a frequency that is lower than optimal, so there is too much delay. One extreme case is the possibility of inefficient collapse: for some parameters there is no investment in equilibrium, even though it is socially optimal that agents (eventually) invest in cycles. Another feature of the model is the tendency of agents to synchronize their individual decisions, and thus the outcome of the aggregate economy does not smooth out the non- convexities present at the microeconomic level.
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Bibliographic InfoPaper provided by EconWPA in its series Macroeconomics with number 0302001.
Length: 42 pages
Date of creation: 04 Feb 2003
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Machine replacement; network externalities; investment cycles; delay.;
Find related papers by JEL classification:
- E22 - Macroeconomics and Monetary Economics - - Macroeconomics: Consumption, Saving, Production, Employment, and Investment - - - Capital; Investment; Capacity
- E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
- D92 - Microeconomics - - Intertemporal Choice and Growth - - - Intertemporal Firm Choice and Growth, Financing, Investment, and Capacity
This paper has been announced in the following NEP Reports:
- NEP-ALL-2003-02-10 (All new papers)
- NEP-MAC-2003-02-10 (Macroeconomics)
- NEP-PKE-2003-02-10 (Post Keynesian Economics)
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