Long Waves and Short Waves: Growth Through Intensive and Extensive Search
Long Waves and Short Waves: Growth Through Intensive and Extensive Search
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长波与短波：精耕细作的成长
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
R. Rob
中科院分区：
文献类型：
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作者：
Boyan Jovanovic;R. Rob
本文对重大发现的频率及其细化程度进行了内蕴分析。四个公理提供了指导探索性工作的单参数信念家族。这样的努力是在重大新发现的前景与成功提炼过去发现的机会之间进行权衡的。唯一的另一个参数是新发现的成本相对于提炼旧发现的成本。本文推导了与这两个参数相关的发明活动的时间序列性质，并讨论了几个具体的发明及其随后的改进。1990年版权归计量经济学会所有。
This paper endogenizes the frequency of major discoveries and the extent of their refinement. Four axioms deliver a one-parameter family of beliefs that guide exploratory effort. Such effort trades off the prospect of major new discovery against the chance of successfully refining discoveries made in the past. The only other parameter is the cost of making new discoveries relative to the cost of refining old ones. The paper derives time-series properties of inventive activity as they relate to the two parameters, and it discusses several specific inventions and their subsequent refinement. Copyright 1990 by The Econometric Society.