Internet Paradox Revisited

Kraut et al. (1998) reported negative effects of using the Internet on social involvement and psychological well-being among new Internet users in 1995–96. We called the effects a "paradox" because participants used the Internet heavily for communication, which generally has positive effects. A 3-year follow-up of 208 of these respondents found that negative effects dissipated. We also report findings from a longitudinal survey in 1998–99 of 406 new computer and television purchasers. This sample generally experienced positive effects of using the Internet on communication, social involvement, and well-being. However, consistent with a "rich get richer" model, using the Internet predicted better outcomes for extraverts and those with more social support but worse outcomes for introverts and those with less support.     

Dilemmas of Environmental Planning in Post‐Urban New Jersey*

Objective. New Jersey's state land‐use plan, designed to preserve open space by directing growth to urban centers, rests on the assumption that nature (the “environment”) and the urban constitute separate objective spheres, such that nature can be preserved as an end in itself. Through a spatial transformation that de‐populated the cities and suburbanized the countryside, however, the urban and the environmental have become overlapping discursive categories, each expressing the absence of the other, and raising serious dilemmas for environmental planning. Methods. This article uses Census data to document the extent of New Jersey's urban and racial transformation over more than half a century, and examines county and municipal reviews of the state's proposed land‐use plan to document the resulting contradictory interpretations of nature articulated in political debate over state‐plan implementation. Results. The attempt to forge a statewide consensus on environmental and open‐space preservation has been stymied by the contradictory perspectives of urban and suburban constituencies, whose responses focus on the urban rather than the environmental implications of proposed land‐use controls. State planners seeking political support for environmental protection find themselves embroiled in often vitriolic debates about urban and suburban lifestyles, with implicit racial subtexts, and about the legitimacy of state intervention perceived as supporting antithetical values. Conclusions. Contrary to the state's attempt to separate the urban and the environmental, the route to environmental protection in New Jersey may lie through urban revitalization.     

Can ranking techniques elicit robust values?

This paper reports two experiments which examine the use of ranking methods to elicit ‘certainty equivalent’ values. It investigates whether such methods are able to eliminate the disparities between choice and value which constitute the ‘preference reversal phenomenon’ and which thereby pose serious problems for both theory and policy application. The results show that ranking methods are vulnerable to distorting effects of their own, but that when such effects are controlled for, the preference reversal phenomenon, previously so strong and striking, is very considerably attenuated.

Rapid Estimations of Maternal Mortality in Countries with Defective Data: An Application to Bamako (1974–85) and Other Developing Countries

Although Gray has argued that the index of social distance (ν) reflects ‘preference factors free of opportunity factors’, that it ‘controls the effects of size’, both its statistical derivation and performance under hypothetical extremes suggest that it is akin to a class of social-mobility-ratio statistics, which principally measure group size and only faintly reflect other factors. An alternative log-linear assimilation model is presented and tested. Multivariate methods neatly decompose the problem to take into account overall secular change, sexual imbalances, country-of-birth preferences or prejudices, as well as sex-specific patterns. Thus, in the Australian case, where Gray concluded that shifting nuptial country-of-birth preferences were primarily a function of changing opportunities, a log-linear analysis shows that, on the contrary, a dramatic rise in marital assimilation occurred in spite of only modest changes in opportunities.     

Effects of population policy and economic reform on the trend in fertility in Guangdong province,China, 1975–2005

An analysis of data mainly from China's 1990 and 2000 censuses and 2005 mini-census shows how fertility decline between 1975 and 2005 in the province of Guangdong has been influenced by both fertility policy and economic and social development. Guangdong's development since 1975 has been very rapid and has attracted huge numbers of migrants from other provinces. The analysis of the province's fertility trend from 1975 shows clearly the influence of fertility policy on the trend. The analysis also shows that economic development has brought about large changes in population composition by urban/rural residence, education, occupation, and migration status, which, together with large fertility differentials by these characteristics, have contributed substantially to Guangdong's fertility decline, in large part through changes in proportions currently married.