@article{oai:nagoya.repo.nii.ac.jp:00008731, author = {宮崎, 正也 and MIYAZAKI, Masaya}, issue = {3}, journal = {経済科学}, month = {Dec}, note = {Any products have life cycles. Through the whole tern of the product life cycle, product concept is also changed. Main theme of this research is crystalization and alteration of a product concept. This paper explores about attention of a company which develops a new product concept, and distinguishes significant reference points on the product concept building. A company forms a new product concept referring diverse sources in practice. Based on earlier researches, this research categorizes the 5 referring sources: "development possibility of core technology", "comparison with the existing in-house product", "correspondence with customer needs", "comparison with the other company product in a market", and "related peripheral technology systems." This reference point typology drives following empirical analysis. Using content analyzed data of news release issued by main domestic ink jet printer manufacturers during 1985-1999, the analysis uncovers the reference point that the company is thinking as important at each product life cycle stages, and presents that the most significant reference point is changed over time. Although it is a result of the one industry analysis, the result is meaningful because it verifies that the relation between the Abernathy-Utterback model which describes industrial evolution process as "from the fluid stage to the specific stage" and the reference point on product concept formatiion, and moreover, it becomes clear that the attention degree to the two reference points, i.e.,"development possibility of core technology" and "related peripheral technology systems", increases at the time to aim at dematurity.}, pages = {19--30}, title = {製品ライフサイクルと変動する製品コンセプト -コンセプト形成時の着目点をさぐる-}, volume = {53}, year = {2005} }