Leadership Cycles in a Quality�?Ladder Model of Endogenous Growth
Leadership Cycles in a Quality�?Ladder Model of Endogenous Growth
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内生增长质量阶梯模型中的领导周期
DOI：
10.1111/j.1468-0297.2012.02510.x
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Piercarlo Zanchettin
中科院分区：
文献类型：
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作者：
V. Denicoló;Piercarlo Zanchettin
我们研究了一种内生增长的质量阶梯模型，该模型产生随机的领导周期。在一个周期内，行业领导者可以在同一领域连续进行多次创新，然后被新进入者取代。最初，新领导者做了很多研究，但随后他们倾向于固步自封，最终被超越。该模型产生了不对称的企业规模分布以及与吉布拉特定律的偏差，这与经验证据相符。我们还发现了政策应有利于现有企业而不是外来者进行研发的条件，并表明更强的专利保护可能会减少创新和增长。
We study a quality‐ladder model of endogenous growth that produces stochastic leadership cycles. Over a cycle, industry leaders can innovate several successive times in the same sector before being replaced by a new entrant. Initially, new leaders do much of the research but they then tend to rest on their laurels and are eventually overtaken. The model generates a skewed firm size distribution and a deviation from Gibrat's law that accord with the empirical evidence. We also find conditions under which policy should favour R&D by incumbents, not outsiders, and show that stronger patent protection may reduce innovation and growth.
影响因子：
8.2
作者：
EVANS, DS
通讯作者：
EVANS, DS