This paper presents a simple model to show that, in addition to technological development and global outsourcing, heterogeneous lifetime preferences for leisure are essential to income inequality. Allocating leisure time to studying is viewed as suffering in exchange for future comfort, and income inequality in a country arises when some prefer the leisure trade-off but others prefer smooth lei...

PURPOSE Thirty-five commercially available Camellia sinensis (black and green) and herbal leisure teas and an assortment of Traditional Chinese medicinal teas were randomly selected and examined for their potential to inhibit the drug metabolizing enzyme cytochrome P450 3A4 (CYP3A4). The study was then extended to examine CYP2D6*1 and CYP2D6*10. METHODS Microtiter fluorometric assays were uti...