Contractual inefficiencies within supply chains increase an input price above its marginal cost, therefore they are considered detrimental to consumer surplus. We argue that such inefficiencies may be beneficial to consumers in qualitydifferentiated markets. Indeed, enhancing contractual efficiency in high-quality supply chains may adversely affect the market structure by driving low-quality ve…

This single-volume resource provides detailed information on current large-scale and longitudinal research studies focusing on early childhood development--the situations and experiences of young American children. Twenty-eight studies are profiled addressing such issues as early childhood interventions for children in poverty, neighborhood characteristics and residence patterns of children and…