"From humble beginnings wholesaling at a small tobacconist-hairdresser shop in 1915, the London Rubber Company rapidly became the UK’s biggest postwar producer and exporter of disposable rubber condoms. A first-mover and innovator, the company’s continuous product development and strong...

Societies socialize children about many things, including sex. Socialization is costly. It uses scarce resources, such as time and effort. Parents weigh the marginal gains from socialization against its costs. Those at the lower end of the socioeconomic scale indoctrinate their daughters less...