中国艾滋病预防控制的政策研究

有关艾滋病预防和控制的研究既是一项政策性很强的社会系统研究，同时也是一项需要多学科间进行合作的应用性研究。艾滋病预防控制主要可分为基础性研究；综合性研究；检测和监测；宣传、教育和行为干预；治疗、咨询和社会支持这五个方面。本文在分析以上五个方面之间以及每个方面的各个要素之间存在的相互关系的基础上，结合泰国经验和教训。对中国艾滋病预防控制政策进行了系统研究，并提出一些政策性建议。     

HIV／AIDS防治中的医患交往艺术——一个景颇村寨中的信任表达

本世纪以来，中国各艾滋病重度流行地区的防治运动往往面临着过度“行政依赖”的制度困境，然而，本文在中国西南边境线上的一个景颇村寨中发现了例外。当地的官方防疫体制通过在终端启用代理人——乡村医生——来进行实际干预，极大规避了阳性群体对于防疫体制的过度依赖，以及由此造成的消极的社会道德后果。来自田野的事实证明，围绕着防疫实践的医患交往在信任机制的组织下，不仅柔和了官方防疫体制与对象间的文化张力，还通过策略而技巧的实践过程增强了对阳性人群的控制能力，并反过来强化了医患间的信任纽带。总的来说，医患间的交往艺术让医学权力的运作得以情境化，实现了社会控制的本意。     

Life expectancy and economic development: Evidence from microdata

This study examines the effect of life expectancy on fertility, education, and labor force participation. Using birth and sibling histories from the Demographic Health Surveys conducted in sub‐Saharan Africa, I construct a time series of age‐specific birth rates and mortality rates at the country‐region level. I use these data to test the implications of a general equilibrium model linking life expectancy to fertility, human capital, and labor supply. My results suggest that increases in life expectancy reduce fertility, increase education, and increase labor force participation. Overall, my empirical results suggest that in sub‐Saharan Africa, increases in life expectancy will have a positive impact on growth through fertility, education, and labor supply but that the effect will be small. My results also rule out the possibility that recent shocks to adult mortality in high HIV prevalence countries will reduce fertility, increase labor productivity, and lead to faster growth.     

Managing AIDS in Africa: HRM challenges in Tanzania

The impact of the AIDS epidemic in developing countries, and in Africa in particular, is now a matter of great concern to policy makers, managers, and academics on a global scale. The magnitude of the potentially disastrous effects of the disease has severe implications for management in organizations, and, in particular, for HRM. The AIDS epidemic is imposing, and will continue to impose, in the foreseeable future, a significant burden on the way people are managed. Little has been written on HRM in Africa, and the present literature on AIDS and HRM in Western societies is inappropriate and insufficient in relation to African organizations. Fifteen organizations in Tanzania took part in this study, which is probably the first of its kind, to produce a picture of current developments and approaches in managing people under the threat of AIDS.     

Forecasting Market Share for Non-Traditional Agricultural Exports

Economic and financial feasibility of projects that are being presented for potential funding by financial agencies depend, among others, on the soundness of assumptions made about the niche in the market which the contemplated enterprises are to fill. This type of market share forecasting is particularly hazardous for entrepreneurs in less developed countries (LDCs), who aim at penetrating export markets for non-traditional agricultural commodities. In this article the author: (a) reviews the methodology used by an Uruguayan enterprise, which decided to export summer citrus to markets in the Northern Hemisphere; (b) shows how these procedures for market share forecasting could be readily adapted to preparation of feasibility studies for enterprises aimed at penetrating export markets for other non-traditional products; and (c) explores the macro-marketing implications of the case study for off-season export of fresh produce from the Southern Hemisphere to consumer centers in North America, Western Europe and Japan.     

Demand for collective food‐safety standards

In 2007, leading members of the U.S. fresh‐tomato industry responded to pressure from the U.S. Food and Drug Administration regarding the industry's long history of poor food‐safety outcomes and adopted a set of standards for production practices related to food safety at all levels of the fresh‐tomato supply chain. Adherence to these standards was required under a federal marketing order that applied to essentially all tomatoes grown in Florida. The California Tomato Farmers cooperative, whose members produced the vast majority of fresh tomatoes grown in California, also required that its members adopt these standards. The collective food‐safety standards for fresh tomatoes closely resemble the requirements of the U.S. Food Safety Modernization Act (FSMA) Produce Safety Rule, so the collective adoption of these standards provides an excellent case study to illustrate the possible effects of FSMA implementation on demand. I assess the hypothesis that demand for tomatoes from Florida and California increased following the adoption of standards for food‐safety practices by growers in those states, relative to demand for tomatoes from other regions. My analysis demonstrates essentially no evidence that demand for fresh tomatoes responded positively to the implementation of collective food‐safety practices.     

Food Demand in Russia: Heterogeneous Consumer Segments over Time

The Russian food system has undergone substantial changes. However, knowledge on how economic transition has affected the structural parameters of food demand is lacking. Based on a two‐stage LES‐LA/AIDS model and annual panel data from the Russia Longitudinal Monitoring Survey (1995–2010), we provide a comprehensive set of food demand elasticities for Russia along two dimensions. First, we estimate demand parameters for three characteristic time periods in order to trace changes during transition. Second, to account for the Russian population's diversity, we derive elasticities for five different consumer segments. These groups are established by a cluster analysis based on households' food purchases. Our findings suggest that demand for food is far from satiated in Russia. We find generally high unconditional expenditure and own‐price elasticities for food. Both expenditure and own‐price elasticities show slight decreases in absolute terms over time. Low expenditure elasticities for staple foods like bread or cereals and high values for luxury goods such as meat, alcohol and tobacco suggest considerable changes in the composition of food baskets with further income growth. Results indicate that food production at home loses in importance while more affluent households in particular increase their demand for food consumption away from home.     

In sorrow to bring forth children: fertility amidst the plague of HIV

The HIV epidemic is lowering fertility in sub-Saharan Africa. This decline in fertility appears to reflect a fall in the demand for children, and not any adverse physiological consequences of the disease, as it is matched by changes in the expressed preference for children and the use of contraception, and is not significantly correlated with biological markers of sub-fecundity. A fall in fertility lowers dependency ratios and, for a given savings rate, increases future capital per person. These two effects more than offset the loss of prime working age adults and reduced human capital of orphaned children brought by the epidemic, allowing 27 of the nations of sub-Saharan Africa to cumulatively spend US$ 650 billion, or $5100 per dying adult AIDS victim, on patient care without harming the welfare of future generations. In sum, the behavioral response to the HIV epidemic creates the material resources to fight it.

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Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. In memory of Ho Hon and Nechama, terribly missed by us all.     

Social Marketing: Using Stages of Change Model to Assess HIV/AIDS Testing Intentions Among University Students in Ghana

This research sought to utilize the stages of change model to assess HIV/AIDS testing intentions among university students in Ghana. A quantitative research method using a questionnaire based on a random sampling method was employed to interview 167 students of the University of Ghana Business School in Accra. The analysis of variance and one-sample t-test statistical methods were employed to establish the relationship between variables. The study found that most university students in Ghana (80.9%) are at precontemplation, contemplation, and preparation stages. This suggests that social marketing intervention programs encouraging university students to know their HIV/AIDS status have not been effective, since most university students in Ghana have not yet taken action to test for HIV/AIDS. The study also found some university students at more than one stage at a time.