4:11 De Beers and N. W. Ayer & Son's marketing masterpiece (4 words) so powerfully that not only were they able to sell us a product we didn't need, but they influenced the culture of marriage. デビアス社と広告制作会社のN. W. Ayer & Son のマーケッティング戦略は消費者の心を強く揺さぶり、本当に必要もないダイヤを買わせ、結婚文化にも影響を及ぼした。
The Real Reason We Buy Diamonds
