Analysis on the mechanism of new industry creations

分析了新产业产生的三种机制，即，产学结合、产业竞争、新技术带动市场成长。日本的产学合作虽然对新兴产业的形成具有重要作用，但在日本却十分薄弱。我们提出了“创新主体”的概念来分析大学与产业的联系。大学与产业之间存在着差距，需要创新主体来弥合这一差距。现有研究表明，产业间竞争对创新的促进作用大于同产业内企业间竞争。分析了日本典型的新兴产业--环境产业和陶瓷产业的产业间竞争。通过案例分析和定量分析，我们发现新兴产业的产业间竞争非常激烈，新兴产业的产生也需要技术融合。市场增长的相关研究主要包括经济学和市场营销学领域的研究以及扩散理论的相关研究。基于扩散理论的市场增长研究已经有很多，但是这些模型都假设其上限从市场增长开始到结束都是不变的。在考虑产品的市场增长时，可以合理地认为，产品在成熟过程中通过技术创新增加新的价值，可以增加产品的潜在市场规模。因此，我们提出了新的市场增长模型，并通过定量分析验证了这些模型的有效性。

We analyzed three mechanism of the new industry creation, i.e., university-industry linkage, inter-industry competition, market growth by new technology. The university-industry linkage is very week in Japan, although it is very important for the new industry creation. We suggested the ' concept "innovation agent" for the analysis of university-industry linkage. The gap exists between university and industry so that the innovation agent is needed for bridging the gap. The roles of innovation agent were made to be clear by the case studies.The existing research suggested that the innovation creating the new industry have been promoted by the inter-industry competition more than the inter-firm competition among same industry. We analyzed inter-industry competition of environment and ceramic industry which are the typical new industries in Japan. By case studies and quantitative analysis, we found that the inter-industry competition is very strong in these new industries and the technology fusion is also needed for the new industry creation.Research related to market growth mainly covers research done in the fields of economics and marketing and research related to diffusion theory. There has been a lot of research on market growth based on diffusion theory, but these models assume that their ceiling does not change from the start of the market growth to the end. When thinking about the market growth of a product, it is reasonable to think that the product's potential market size could be increased by new value being added by technological innovation of the product during the maturing process. Therefore, we proposed new market growth models and verified the validity of these models through a quantitative analysis.