Jun Iwamatsu，资深高级研究员，建筑成本研究所
Stability and Change in the Management of Japanese Construction Enterprises in Recent Years： A Micro Data Analysis
Jun Iwamatsu
建筑成本研究所（RIBC）高级研究员
电子邮件：iwamatsu@ribc.or.jp
Abstract
This paper analyzes the changes in the profitability and productivity indices of Japanese construction enterprises in recent years. The analysis used a very large database， called the Business Evaluation Results （BERs）， compiled and published under the Construction Business Act. The data used in this analysis reflects the business performances of approximately 120，000 companies between approximately 2009 and 2011. The data from these three years is likely to have been heavily affected by the decline of demand in the Japanese construction sector after the Lehman Shock. As construction enterprises are greatly varied， they are classified by firm size and work type （a classification based on the types of construction work performed） for the purpose of this study. The indices of companies' net sales of completed construction contracts and profits were analyzed to examine the firms' business performances. Furthermore， a macro analysis of productivity was conducted， using the number of engineers employed by each company.
Keywords： Statistical analysis， Large scale micro data， Profitability， Revenues， Labor productivity
日本建筑企业管理近年来的发展现状与变化趋势：微观数据分析
Jun Iwamatsu
建筑成本研究所（RIBC）高级研究员
摘要
本文根据《建设业法》（Construction Business Act）编纂发布的大型数据库——商业评价结果（BERs），分析了日本建筑企业近年来盈利能力和生产指数的变化。本次分析所采用的数据反映了约120，000家公司在2009至2011年期间的经营业绩，这三年的数据可能受到了引发全球金融危机的雷曼事件导致日本建筑业需求降低的严重影响。由于建筑企业千差万别，为进行本次研究，按照公司规模和作业类型对企业进行了分类（一项根据企业涉及建筑工程类型进行的分类）；并对公司已完工程合同的净销售额指数和利润指数进行了分析，以考察公司的经营绩效。此外，本文还通过各公司聘用工程师的数量对公司产能进行了一项宏观分析。
关键词：统计分析，大规模微观数据，盈利能力，收益，劳动生产率