消費者は購買意思決定に先立ってオンラインカスタマーレビューを製品の品質の手掛かり情報として利用するが，ブランド力が高い製品の場合にはブランドも製品の品質の有力な手掛かりとなる。このため，そうした製品についてのカスタマーレビューの影響力はブランド力が低い製品の場合と比べて弱いとされている。しかしながら，先行研究ではカスタマーレビューがブランド力の高い製品の売上成果にいかなる役割を果たすのかについて十分に考察されてきたとは言い難い。そこで本研究では我が国のヘッドセットデータにファジィ集合QCA（fsQCA）を適用し，この問題について考察した。その結果，ブランド力が高い製品は新製品期にはカスタマーレビューの評価にかかわらず売れ筋製品となり得るものの，新製品期間を超えてなお売れ筋であり続ける上で，カスタマーレビューにおける高い評価は，INUS条件として，大きな役割を果たしていることを確認した...

Abstract A strong edge coloring of a graph G is proper such that every color class an induced matching. The minimum number colors required termed the chromatic index. In this paper we determine exact value index all unitary Cayley graphs. Our investigations reveal underlying product structure from which graphs emerge. We then go on to give tight bounds for Cartesian two trees, including formula...

For a product containing a strong sensitizer to be considered a hazardous substance and to require cautionary labeling under the FHSA, the product must be capable of causing substantial personal injury or substantial illness during, or as a result of, customary or reasonably foreseeable handling or use, including reasonably foreseeable ingestion by children. This requires consideration of the r...

In this paper, we consider the product-limit quantile estimator of an unknown quantile function under a censored dependent model. This is a parallel problem to the estimation of the unknown distribution function by the product-limit estimator under the same model. Simultaneous strong Gaussian approximations of the product-limit process and product-limit quantile process are constructed with rat...

In this paper, we consider the orthogonal product set (OPS) with strong quantum nonlocality. Based on decomposition of plane geometry, present a sufficient condition for triviality orthogonality-preserving POVM fixed subsystem and partially answer an open question given by Yuan et al. Phys. Rev. A \textbf{102}, 042228 (2020)}. The connection between nonlocality structure OPS is established. We ...