This study examined the effects of server race, customer race, and their interaction on restaurant tips while statistically controlling for customers' perceptions of service quality and other variables. The findings indicate that consumers of both races discriminated against Black service providers by tipping them less than White service providers. Furthermore, this server race effect on tipping was moderated by perceived service quality and dining party size. The theoretical and practical implications of these findings are discussed. Particularly noteworthy is the possibility that the server race effect on tipping represents an adverse impact against Black servers that makes the use of tipping to compensate employees a violation of employment discrimination law in the United States.

A B S T R A C TThis article is a developmental review of research on skin tone bias and its consequences for African Americans. In the first section of the paper, we summarize research findings on skin tone attitudes, preferences, and stereotypes from childhood through adulthood. Next we summarize literature regarding African Americans as the target of skin tone bias. This section is organized in terms of individual and contextual factors that shape whether and how skin tone bias occurs; factors that moderate the target's reaction to such bias; and consequences of bias, including psychosocial and health outcomes, economic and educational disparities, and repercussions within the legal system. We conclude by discussing limitations of the extant research.In a society where racism is still common, skin tone is a visible cue that activates culturally embedded prejudices and stereotypes that may lead to race-based discrimination. This review summarizes research on skin tone bias toward African Americans, filling a gap in the existing literature by considering skin tone bias both from the perspective of the perceiver and the target; by examining age differences in effects; and by delineating antecedents, moderators, and consequences that shape the experiences of skin tone bias. We begin by discussing a few lexical and methodological considerations, then review empirical findings (mostly 1990 to present) on skin tone attitudes, preferences, and stereotypes during childhood, adolescence, and adulthood from the perspective of the perceiver.

In complex coupled natural-human systems (CNH), multitype networks link social, environmental, and economic systems with flows of matter, energy, information, and value. Embedded Resource Accounting (ERA) is a systems analysis framework that includes the indirect connections of a multitype CNH network. ERA is conditioned on perceived system boundaries, which may vary according to the accountant's point of view. Both direct and indirect impacts are implicit whenever two subnetworks interact in such a system; the ratio of two subnetworks' impacts is the embedded intensity. For trade in the services of water, this is understood as the indirect component of a water footprint, and as ''virtual water'' trade. ERA is a generalization of input-output, footprint, and substance flow methods, and is a type of life cycle analysis. This paper presents results for the water and electrical energy system in the western U.S. This system is dominated by California, which outsources the majority of its water footprint of electrical energy. Electricity trade increases total water consumption for electricity production in the western U.S. by 15% and shifts water use to water-stressed Colorado River Basin States. A systemic underaccounting for water footprints occurs because state-level processes discount a portion of the water footprint occurring outside of the state boundary.

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