Firm Age Distributions and the Decay Rate of Firm Activities
Firm Age Distributions and the Decay Rate of Firm Activities
复制标题
企业年龄分布和企业活动衰退率
DOI：
10.1007/978-3-319-20591-5_17
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Takayuki Mizuno
中科院分区：
文献类型：
--
作者：
Tsutomu Watanabe;Atushi Ishikawa;Shoji Fujimoto;Takayuki Mizuno
在本研究中，我们调查了ORBIS数据库中约100万条日本企业规模数据，并证实企业的年龄分布近似服从指数函数。我们通过比较2008年和2013年的企业活动来估计企业的衰减率，发现它不依赖于企业年龄，可以被视为恒定的。这里，企业的衰减率表示企业活动的状态转移概率。当新成立公司的数量几乎恒定时，这两个观察结果在质量上是一致的。这种现象类似于核衰变。我们通过比较指数年龄分布的参数与公司活动的衰减率来定量地证实了这种一致性。同时，利用这一结果，我们估算了二战前日本每年成立的企业数量以及企业活动的衰退率。
In this study, we investigated around one million pieces of Japanese firm-size data, which are included in the database ORBIS, and confirmed that the age distribution of firms approximately obeys an exponential function. We estimated the decay rate of firms by comparing their activities in 2008 and 2013 and found that it does not depend on firm age and can be regarded to be constant. Here, decay rate of firms denotes the state transition probability of firm activities. These two observations are qualitatively consistent when the number of newly founded firms is nearly constant. This phenomenon is analogous to nuclear decay. We quantitatively confirmed this consistency by comparing the parameters of exponential age distribution with the decay rate of firm activities. At the same time, using this result, we estimated the number of firms founded annually and the decay rate of firm activities in Japan before World War II.