The weight of the rich: improving surveys using tax data

The Journal of Economic Inequality - Household surveys often fail to capture the top tail of income and wealth distributions, as evidenced by studies based on tax data. Yet to date there is no...     

Gender gaps in skills and labor market outcomes: evidence from the PIAAC

Review of Economics of the Household - Our paper makes the first attempt to address the empirical relationRicship between cognitive skills and gender gaps in labor market performance. We do so in a...     

How a Nonprofitness Orientation Influences Collective Civic Action: The Effects of Civic Engagement and Political Participation

VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - This research addresses the question of how the institutional frame of “nonprofitness” shapes the civic...     

Conceptualizing social-ecological drivers of change in urban forest patches

Urban Ecosystems - We introduce a conceptual model of the urban forest patch as a complex social-ecological system, incorporating cross-scale interactions. We developed this model through an...     

Vegetation on and around large-scale buildings positively influences native tropical bird abundance and bird species richness

High population growth in the tropics is driving urbanisation, removing diverse natural ecosystems. This is causing native species to suffer while introduced synanthropes flourish. City planners are developing urban greenspace networks, in part trying to address this issue. Architects contribute to these greenspace networks by designing elevated and ground level green spaces on large-scale buildings. However, little evidence is available on whether building green spaces support native fauna. This is true for birds in tropical Singapore that support important ecosystem services and have existence value. Therefore, in this study, we conducted bird surveys and statistical analyses to determine, if and how vegetation on three building green space types (ground gardens, roof gardens and green walls) have a positive impact on native or introduced bird species. We found that elevated greenery (roof gardens and green walls) on large-scale buildings supported a higher richness of birds and abundance of urban native birds than control roofs and walls without vegetation. Ground gardens supported similar levels of native species as roof gardens but also a larger proportion of generalist synanthropes. However, we found no tropical forest habitat specialists across any space type. Therefore, we recommend roof gardens and ground gardens as a potential space for urban natives outside of a less competitive ground-level urban environment. Our study also found certain building design elements (height of elevated space, presence of specific plants) supported different species groups. Therefore, we suggest that these ecological requirements for different species groups are considered when designing a building’s green space.

     

Social-ecological research in urban natural areas: an emergent process for integration

Urban Ecosystems - Understanding the structure and function of urban landscapes requires integrating social and ecological research. Here, we integrate parallel social and ecological assessments of...     

Have unions impeded growing wage dispersion among young workers?

Wage inequality is examined for young males over the period 1980–1993. While wage inequality increased substantially for nonunion workers over this period, wage inequality increased only modestly for union workers. In part, this difference results from divergent trends in skill prices—returns to skill rose in the nonunion sector but contracted slightly in the union sector. In particular, returns to education increased sharply in the nonunion sector while remaining stagnant in the union sector. At least for young workers, these findings suggest that unions have been largely successful in resisting market pressures for greater wage inequality. We also uncover evidence suggesting that, as relative returns to education decline in the union sector, highly educated young workers become less likely to choose union employment. We acknowledge the helpful comments of Dek Terrell, Steve Trejo, and Carol Horton Tremblay.     

Promoting Justice in the Delivery of Services to Juvenile Delinquents: The Ecosystemic Natural Wrap-Around Model

Caught between their child and doing the right thing, families of chronic juvenile delinquents often experience a series of injustices in the name of justice. Attempts by the system to correct the delinquency problem often result in the imposition of values and beliefs that negate the family's values, experiences and meanings of their child's behavior. The Ecosystemic Natural Wrap-around (E.N.W.) model attempts to respectfully account for the many influences that maintain problematic interactions, both internal and external, in the nuclear family of chronic juvenile delinquents. The model focuses on a variety of interventions at different levels and contexts, building on the strengths of the family, using the extended family and fictive kin networks, and clarifying the meanings associated with problematic behavior for the multiple players. The model proposed is an integrative theoretical approach, emphasizing systems theory and constructivism.