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Black American women are shrinking in height at a faster rate than other groups, a phenomenon that has consequences for the physical health and economic well-being of black females. Relative to the cohort born from 1955 to 1974, the most recent cohort (1970–1986) of black American women and girls have lost more than half an inch (approximately 0.56) in height. Adult height is a measure of net nutrition acquired during childhood and adolescence and is correlated with a wide variety of economic and health outcomes. Simultaneously, the body mass index (BMI) among blacks has also increased at a faster rate than whites in both the periods of 1988–1994 (1.06 kg/m2) and 1999–2002. Black women and girls, in particular, experienced the greatest increase in BMI since the 1990s. Evidence that black American women are shrinking and BMI is growing highlights the need to examine the nutritional intake of black girls during childhood and adolescence; early nutritional deficiencies have persistent impact over their life course. In this policy brief, we consider several public health policy interventions that affect black girls’ nutritional intake across the life course, particularly during childhood and adolescence.  相似文献   
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With U.S. Treasury yields near historical lows and the recent relaxation of U.S. regulatory reporting requirements, the U.S. bond markets are more and more frequently the markets of choice for international issuers. Total crossborder U.S. bond issuance is expected to top $350 billion in 2000, easily surpassing previous issuance levels.
Overseas issuers have three primary forms through which they can participate in the U.S. long-term debt markets: publicly traded, SEC-registered bonds (commonly known as Yankee bonds); traditional private placements; and underwritten Rule 144A private placements. Each of these three financing methods has distinct benefits and limitations that should be thoroughly evaluated in light of the specific objectives of the issuer. Yankee bonds are typically the most cost efficient vehicle for large, investment grade issuers, and they are expected to account for over 75% of the $350 billion market in 2000. Second in importance is the rule 144A market, which is typically used for complex structures requiring heavy rating-agency involvement, such as future financial flow transactions and project financings. The 144A market has also become a particular favorite with international issuers because of its less formal disclosure requirements and streamlined execution process. The private placement market continues to be the dominant choice of smaller issuers, companies with complicated stories, and firms that do not wish to submit to regular scrutiny by rating agencies. This article provides a detailed analysis of each type of bond issuance and the issues facing a financial officer in trying to determine the most appropriate source of long-term debt.  相似文献   
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Over the past decade, the distribution of household incomes has shifted so much that a much larger proportion of consumers now earn significantly higher-than-average incomes--while still falling short of being truly rich. As a result, what used to be a no-man's-land for new product introductions has in many categories become an extremely profitable "new middle ground." How can marketers capitalize on this new territory? The key, say the authors, is to rethink the positioning and design of offerings and the ways they can be brought to market. Take, for instance, how Procter & Gamble redefined the positioning map for tooth-whitening solutions. A decade ago, dental centers were popularizing expensive bleaching techniques that put the price of a professionally brightened smile in the 400 dollars range. At the low end, consumers also had the choice of whitening toothpastes that cost anywhere from 2 dollars to 8 dollars. P&G wisely positioned itself between the two ends, successfully targeting the new mass market with its 35 dollars Whitestrips. In product categories where it's clear the middle ground has already been populated, it's important for companies to design or redesign offerings to compete. An example is the Polo shirt. How do you sell a man yet another one after he's bought every color he wants? Add some features, and call it a golf shirt. Here, marketers have introduced designs based on the concept of "occasional use" in order to stand out. Finally, companies wishing to reach the "almost rich" can change how they go to market. Perhaps no mass retailer has made a stronger bid for the mass affluent than Target Stores, which has pioneered a focus the company itself characterizes as upscale discount. The strategy has made Target an everyday shopping phenomenon among well-heeled urbanites and prosperous professionals.  相似文献   
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In this paper we discuss the fundamental inconsistency that results from employing the two traditional concepts of rationality as the basis of selecting social goals. We then consider the possibility that the selection of social goals must be based on explicitly ethical criteria. To do so a third concept of rationality namely, ontological rationality, should be adopted. Moreover, we argue that J. M. Keynes in A Tract Monetary Reform based his public policy recommendations on a modified version of ontological rationality, thereby introducing ontological rationality into economics as the basis for selecting social goals.A previous version of this paper was presented at the Fifty-Eighth International Atlantic Economic Conference, October 7–10, 2004. The authors are grateful to session participants for their helpful suggestions, though the authors alone are responsible for the contents of the paper.  相似文献   
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In the nonparametric measurement of allocative efficiency, output prices are fixed. If prices are endogenous, the overall output in the market determines the allocative efficient point. We develop an alternative semi-nonparametric model that allows prices to be endogenously determined.  相似文献   
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