The selection of zero-non-zero patterned cointegrating vectors in error-correction modelling

An effective and efficient search algorithm has been developed to select from an 1(1) system zero-non-zero patterned cointegrating and loading vectors in a subset VECM, B^q(l)y(t-1) + B^q-1 (L)Ay(t) = ε( t ) , where the long term impact matrix Bq(l) contains zero entries. The algorithm can be applied to higher order integrated systems. The Finnish money-output model presented by Johansen and Juselius (1990) and the United States balanced growth model presented by King, Plosser, Stock and Watson (1991) are used to demonstrate the usefulness of this algorithm in examining the cointegrating relationships in vector time series.     

No associative biases in the first name cued recall procedure for eliciting personal networks

One thousand five hundred twenty-five respondents from a representative sample of adult residents of the state of Florida (USA) participated in a telephone survey on personal networks (McCarty et al., 1995). McCarty et al. (1995) elicited samples of alters from respondents' personal network with a first name cued recall interview procedure. This paper reports an assessment of associative biases involved with this technique in a further evaluation of the representativeness of the alter samples elicited with this method. Associative biases would be present if successively recalled alters are more likely to know each other or belong to the same social context (e.g., work, family, school) than alters not recalled successively. Such biases, if present, could influence the characteristics, and thus the representativeness, of the set of alters elicited, such as the density of ties. Analyses indicate that there are no associative biases in the first name cued recall procedure. Future research should investigate the possibility of associative biases in other methods for eliciting personal networks.     

Levels of analysis,theoretical orientations and degrees of abstraction

This article suggests that what often appear to be fundamental conflicts of opinion among sociologists regarding appropriate levels of analysis and theoretical orientations are much less problematic when considered in terms of differences in degrees of abstraction. The critical factor in the compatibility of various levels of analysis and theoretical orientation is the use of degrees of abstraction by the researcher. The impact of this issue on sociological knowledge and some of its applications are examined. Pat Lauderdale is professor of justice and adjunct professor of law at Arizona State University and is completing a book on social conflict and disputes. Steven D. McLaughlin is the director of Battelle’s Health and Populations Research Center in Seattle and presently is conducting research on adolescent fertility and educational attainment. Annamarie Oliverio has completed graduate work in political science and criminology at Simon Fraser University and currently is working on her doctoral dissertation at Arizona State University.     

Intergenerational Relations with In-Laws in the Context of the Social Convoy: Theoretical and Practical Implications

Intergenerational relations among in-laws are involuntary ties emerging as a consequence of marriage. As such, these relations provide a window through which the dynamics involved in restructuring social networks following life transitions may be observed. A questionnaire, based on the social convoy model, was given to an ethnically diverse sample of adults with living in-laws (N = 170), married 2–15 years. About half of the respondents included in-laws in a concentric circle network diagram of persons close and important to them. The strongest unique predictors of convoy placement for the mother-in-law were support, frequency of contact, relationship quality, and length of marriage, and for the father-in-law were support, relationship quality, and value similarity. This study sheds light on the dynamics of an intergenerational relationship that has been largely ignored in the literature, laying the groundwork for conceptualizing ways to foster positive in-law relationships as a necessary tool in managing the care of the growing numbers of elderly in the new millennium.     

Life Years Lost at Hazardous Waste Sites: Remediation Worker Fatalities vs. Cancer Deaths to Nearby Residents

We present a hypothetical case study using the Years of Potential Life Lost (YPLL) metric to compare cancer risks incurred by residents living near a Superfund site to occupational fatality risks incurred by workers employed in that site's remediation. Since cancer occurs late in life, and because we assume its mortality rate is 60%, each case results in 8.8 YPLL. Each occupational fatality, which typically occurs earlier in life, results in 38.1 YPLL. In our case study, the residential population of 5000 incurred 1.3 YPLL, compared to 5.7 YPLL incurred by the 500 workers. Several uncertain assumptions may influence our calculations; moreover, occupational risks may be viewed as more "voluntary" than risks incurred by residents. However, because the magnitude of the YPLL incurred by workers and residents may be comparable, risk managers should consider occupational risks when evaluating remedial alternatives.     

Social workers in private practice: What are they really doing?

At one level, private practice may represent a fairly evolved manifestation of the expanded professional growth and sophistication of the individual social worker who embarks upon this highly individualized proprietary enterprise. However, on a larger scale, this widespread shift toward private practice may indicate a collective disenchantment with agency practice per se and represent a concerted attempt to redefine the fundamental aims and values of social work practice.