Computation of Sharp Bounds on the Expected Value of a Supermodular Function of Risks with Given Marginals

We show that the rearrangement algorithm (RA) introduced in Puccetti and Rüschendorf (2012 Puccetti, G., Rüschendorf, L. (2012). Computation of sharp bounds on the distribution of a function of dependent risks. Journal of Computational and Applied Mathematics 236(7):1833–1840.[Crossref], [Web of Science ®] , [Google Scholar]) to compute distributional bounds can be used also to compute sharp lower and upper bounds on the expected value of a supermodular function of d random variables having fixed marginal distributions. Compared to the analytical methods existing in the literature the algorithm is widely applicable, more easily obtained and gives insight into the dependence structures attaining the bounds.     

Sustainable landscaping programs in the United States and their potential to encourage conservation and support ecosystem services

Sustainable landscaping programs are voluntary initiatives that recommend a set of practices to improve the environmental quality of urban ecosystems by providing landscaping materials, guidelines, and educational resources. Our goal was to examine the recommendations and outcomes of these programs in the United States and their value for encouraging conservation practices in residential ecosystems. We conducted a comprehensive web search and identified 193 sustainable landscaping programs in the United States. Programs aim to increase native species richness, affordably manage stormwater runoff, and offer residents meaningful experiences with nature. Sustainable landscaping programs present many opportunities to engage people with local ecological knowledge and conservation practices, provide accessible spaces for environmental education, cultivate interdisciplinary research collaborations, and advance inclusion in conservation. However, assessments of their ecological value are rare, leaving many questions surrounding the benefits to biodiversity and water quality afforded by participation. Many programs also require investments in landscaping materials and certification fees that might limit participation by some households. Future work should examine how recommended practices influence urban biodiversity, identify and address barriers to participation, and generate social-ecological knowledge that can inform future programs.

     

Missing the wealthy in the HFCS: micro problems with macro implications

Wealth aggregates implied by the Household Finance and Consumption Survey (HFCS) usually yield much lower amounts than macroeconomic statistics reported in the National Accounts. An important source of this gap may be the under-representation of the wealthiest households in the HFCS. This article therefore combines a semi-parametric Pareto model estimated from top survey data and observations from rich lists with a non-parametric stratification approach to quantify the impact of the missing wealthy households on component-specific micro-macro gaps. We find that unadjusted micro data substantially underestimates wealth inequality. The largest effects are documented for equity. For other components, the missing wealthy explain less than ten percentage points of the micro-macro gap. We find that differences in oversampling strategies limit the cross-country comparability of unadjusted survey-implied wealth distributions and that our top tail adjustment leads to measures that are internationally better comparable.

     

The 2020 US Census Differential Privacy Method Introduces Disproportionate Discrepancies for Rural and Non-White Populations

Population Research and Policy Review - The recently finalized changes to the disclosure avoidance policies of the US Census Bureau for the 2020 census, grounded in differential privacy, have faced...     

Resources,homophily, and dependence: Organizational attributes and asymmetric ties in human service networks

This paper examines the effects of organizational attributes on power/dependence relations in interorganizational dyads. Exchange and homophily theories are discussed as two alternative perspectives on the processes that give rise to such effects. The data pertain to interagency ties in three community-based networks of youth service agencies and are analyzed via a new strategy of linear modeling dyadic relations. The results of the analysis suggest that size, administrative position, and justice system connections condition the extent to which an agency initiates and receives ties of influence, assistance, and support. Moreover, these relations are more frequent between agencies with similar treatment ideologies and client racial makeup. Finally, size and justice system access are found to reduce agency dependence on a network's administrative core. In the course of the discussion, a number of related issues and findings are discussed.     

Durkheim and pierce on suicide and economic change

This paper is an attempt to build upon Pierce's important finding, a confirmation of Durkheim, that any form of economic disruption or change increases suicide. In this paper, certain aspects of Pierce's method are criticized. The analysis of an expanded and updated data set, using analytic techniques designed for time-series data, suggests that economic disruption per se is not as relevant to the suicide rate as are economic hardship and economic deterioration or improvement.     

Prince George is Not (and never was) Canada’s Most Dangerous City: Using Police-Recorded Data for Comparison of Volume and Seriousness of Crimes

This article is based on the idea that crime should be analyzed in terms of both volume and seriousness. Crime rates are the most usual measure of the volume of criminality at a given time or a given place. Statistics Canada recently developed a Crime Severity Index to account for variations in the seriousness of police-recorded criminal infractions. A close look at its construction reveals that the Index is a weighted rate influenced by both the volume and the seriousness of recorded infractions. This article introduces a new indicator designed to measure the seriousness of recorded infractions. The measure is based on simple calculations and easy to interpret. It suggests that serious crime has decreased since the 1980s. It also suggests that city and province rankings based solely on crime rates are misleading because high levels of crime do not necessarily indicate high levels of the more serious crimes.     

Charting the terrain of touch

Discusses the Laboratory for Human and Machine Haptics at the Massachusetts Institute of Technology, nicknamed the Touch Lab, which investigates new technologies involved in the sense of touch.     

The role of the gerontological social worker in assisted living

This qualitative study reports on thirteen assisted living (AL) administrators' perspectives of the role and the importance of the AL social worker in addressing the unmet needs of older adults as they move and transition into AL. Participant interviews were analyzed using the constant comparative method. Administrators described 5 AL social work roles: (a) decision-making and adjustment coordinator; (b) resident advocate; (c) mental health assessor and counselor; (d) family social worker; and (e) care planner. Implications include directly examining AL social workers' views, analyzing costs and benefits of employing AL social workers, and developing social work practicum sites within AL.     

Income security for older people: An Asian perspective

In Asia and the Pacific, as in other developing regions, the continuing growth of the aged population has a great impact on social security programmes generally and, in particular, on the income security of older persons. In societies where traditional support systems are breaking up, their need for social security protection is increasingly important. A system of social security for the elderly population exists in most countries of the region. Many are provident fund schemes, which are basically saving schemes, and their coverage is low. Where social insurance pension schemes exist, the levels of benefits provided are also low. The focus for future development, therefore, lies in converting the savings schemes into multitiered pension schemes, extending their coverage and raising the level of benefits. In this context the critical question concerns the role of the State and the type of schemes used. The need for public pension schemes is great in Asia and the Pacific, where the level of poverty is comparatively high. Building pension schemes, whether public or private, involves a set of issues that need to be addressed. This article considers the systems currently in place and the challenges and limitations faced when considering the future development of social security in this area.