Empirical Studies on bid rigging in public procurement auctions

在第一年，我对公平交易委员会根据《反垄断法》起诉的串通投标行为进行了案例研究。更具体地说，我与我的同事一起研究了福冈公共采购拍卖中的投标操纵。然后，我和我的同事出版了一本关于日本反垄断法经济学的书。此外，在第一年，我努力构建一个关于采购拍卖投标的数据集。在第二年，我使用该数据集，对采购拍卖中的投标行为进行了实证分析。特别是，我研究了竞争管理机构调查前后投标价格的变化。结果显示，调查后房价明显回落。关于这项研究，我在2010年5月的日本经济政策协会年会上发表了论文。作为相关的研究，我已经介绍了与本课题密切相关的创新和生存/退出等企业间竞争的研究课题。随后，我发表了一些论文，并在一些国内和国际会议上发表。

In the first year, I conducted a case study of bid-rigging prosecuted by the Japan Fair Trade Commission under the Antimonopoly Act. More concretely, I examined bid-rigging in public procurement auctions in Fukuoka, jointly with my colleagues. Then, my colleagues and I published a book on the economics of the Antimonopoly Act in Japan. Also, in the first year, I made efforts to construct a data set regarding bidding in procurement auctions. Using the data set, in the second year, I conducted an empirical analysis regarding bidding behaviors in procurement auctions. In particular, I examined changes in bid prices before and after the investigation by the competition agency. The results show that prices fall significantly after the investigation. Regarding this research, I presented the paper at the Japan Economic Policy Association Annual Meeting in May 2010. As related research, I have addressed several research projects on inter-firm competition, including innovation and survival/exit, which are closely related to this project. Then, I published a number of papers and presented them at some domestic and international conferences.