1. [1] 総務省:令和元年通信利用動向調査,https://www.soumu.go.jp/johotsusintokei/statistics/data/200529_1.pdf (2021.04.12閲覧).
2. [2] 株式会社ネオマーケティング:生活者目線で見たD2C実態調査,https://neo-m.jp/investigation/2581/(2021.04.12閲覧).
3. [3] Engel, J. F., Kollat, D. T., and Blackwell, R. D.: Consumer behavior, Holt, Rinehart and Winston, 1968.
4. [4] Block, P. H., Sherrell, D. L., and Ridgway, N. M.: Consumer search: An extended framework, Journal of Consumer Research, Vol.13(1), pp.119-126, 1986.
5. [5] Ratchford, B. T., Lee, M.-S., and Talukdar, D.: The impact of the internet on information search for automobiles, Journal of Marketing Research, 40(2), pp.193-209, 2003.