URban Biotopes of Aotearoa New Zealand (URBANZ) (I): composition and diversity of temperate urban lawns in Christchurch

Christchurch urban lawns are dominated by non-native grasses and forbs. However, we document considerable plant diversity; the total number of species encountered in our 327 sampled lawns was 127, although 80 species occurred in <2% of lawns. Seven distinct lawn communities were identified by Two-Way INdicator SPecies ANalysis using occurrence of 47 species that occurred in > 2% of lawns. Our ability to explain variation in species composition was surprisingly good and indicates intensity of lawn maintenance such as frequency of mowing, irrigation, fertiliser, and herbicide use and whether clippings are removed or not plays the major role. Species richness significantly declines with an increase in total area of contiguous lawn, leaf litter cover, the presence of grass clippings, and on loamy soil. Hence, park lawns with coarser management had lower species richness than residential lawns. Native species were more prevalent in well tended residential lawns, where more frequent mowing and removal of clippings or litter build-up diminishes shoot competition or shading. There is tremendous potential for more native species in New Zealand lawns which would contribute substantially to the conservation of endangered lowland herbaceous flora.     

Social Capital, Social Funds and Poor Communities: An Exploratory Analysis

Social capital has captured the attention of social policy-makers and development administrators, with its emphasis on social relationships, civic participation, collaborative action and norms of reciprocity. Social funds support small-scale community-based development projects aimed primarily at reducing poverty. This article synthesizes the relevant literature and explores the nexus between social capital and social funds in relation to poor communities. Drawing upon primary research in Jamaica, the article reports the outcomes of eight social fund sub-projects that involved local organizations in community-driven development processes. It analyses the role of social networks and the influence of community power structures in social capital creation. Social policy implications of the findings are discussed.     

Patterns in Household Giving: Evidence From U.K. Data

The Family Expenditure Survey provides a long time series of household-level data on U.K. charitable giving, which previously has not been exploited. Data analyzed for the period 1978–93 reveal a long-term decline in the proportion of households giving to charity, which persists once we control for changes in other characteristics that affect giving, such as income and wealth. The biggest declines in the number of givers are among younger and poorer households. We also draw out generation-specific trends in a way that is crucial to thinking about future trends in funding for the voluntary sector.     

Conceptions of Art Ownership as a Form of Wealth Accumulation Among the Black Middle-Class

While there is a rich sociological tradition of analyzing the consumption of middle-class blacks, theory and research have overwhelmingly conceptualized middle-class blacks as conspicuous consumers. This paper develops an alternative theoretical approach to black middle-class consumption. Using the case of art ownership, I elaborate how middle-class blacks understand consumption as a practice that maintains and reinforces their class position by building wealth. Drawing on 103 in-depth interviews with black middle-class consumers of visual art, I illustrate how middle-class blacks view art as an economic asset and consider investment potential when they purchase art. I also document how middle-class blacks view art as a source of wealth that can be transferred across generations. Theory which accounts for black middle-class consumption from the perspective of wealth building is critical given long-standing arguments that middle-class blacks are a group whose frivolous and status-driven consumption jeopardizes their accumulation of wealth. The theoretical approach outlined in this paper illustrates how middle-class blacks approach consumption with an eye to solidifying their economic position.     

THE IMPACT OF INCOME SHOCKS ON HEALTH: EVIDENCE FROM COHORT DATA

We study the effect of permanent income innovations on health for a prime‐aged population. Using information on more than half a million individuals sampled over a 25‐year period in three different cross‐sectional surveys we aggregate data by date‐of‐birth cohort to construct a “synthetic cohort” data set with details of income, expenditure, socio‐demographic factors, health outcomes, and selected risk factors. We then exploit structural and arguably exogenous changes in cohort incomes over the 1980s and 1990s to uncover causal effects of permanent income shocks on health. We find that such income innovations have little effect on a wide range of health measures, but do lead to increases in mortality and risky health behaviour. (JEL: I10, D31)     

Leader-Member Exchange across two hierarchical levels of leadership: concurrent influences on work characteristics and employee psychological health

Leader-Member Exchange (LMX) theory suggests that the quality of the leader–employee relationship is linked to employee psychological health. Leaders who reside at different hierarchical levels have unique roles and spheres of influence and potentially affect employees' work experiences in different ways. Nevertheless, research on the impact of leadership on employee psychological health has largely viewed leaders as a homogeneous group. Expanding on LMX theory, we argue that (1) LMX sourced at the levels of the line manager (LM) and senior management (SM) team will be differentially linked to employee psychological health (assessed as worn-out) and that (2) these relationships will be mediated by perceived work characteristics (reward and recognition, workload management, quality of relationships with colleagues and physical environment). Structural equation modelling on data from 337 manual workers partially supported the hypotheses. Perceptions of the physical environment mediated the relationship between LMX at the LM level and employee psychological health, whereas perceptions of workload management mediated the relationship between LMX at the SM level and psychological health. These findings corroborate arguments that leaders are not a uniform group and as such the effects of LMX on employees will depend on leadership hierarchy. Implications for expanding leadership theory are discussed.     

Search,Obfuscation, and Price Elasticities on the Internet

We examine the competition between a group of Internet retailers who operate in an environment where a price search engine plays a dominant role. We show that for some products in this environment, the easy price search makes demand tremendously price‐sensitive. Retailers, though, engage in obfuscation—practices that frustrate consumer search or make it less damaging to firms—resulting in much less price sensitivity on some other products. We discuss several models of obfuscation and examine its effects on demand and markups empirically.     

Older People's Family Contacts and Long-term Care Expenditure in OECD Countries: A Comparative Approach Using Qualitative Comparative Analysis

In recent decades there has been a suggestion that public and private long-term care (LTC) expenditure might be replacing traditional family care for older people. The decline of family contact is known to be more advanced in some OECD countries than others, with southern Europe identified as where family contact is still strong. This article explores at a country level whether there is an association between levels of expenditure on long-term care and the availability of family contacts. Qualitative Comparative Analysis is used as a comparative method, so as to use national quantitative indicators with a small sample of countries. An association between higher levels of family contact and lower levels of expenditure on LTC is suggested, but it is weakened by a number of untypical cases. Countries that defy this relationship have government care policies that seek to promote informal social care through the family contact that continues to be available. Austria, Canada, Great Britain and Japan are discussed in this context.     

A taxonomy of gambling-related crime

Gambling and crime represent two common behaviours that occur, to varying degrees and in myriad forms, across most societies. Keeping gambling free from crime has also emerged to become an important policy objective in many jurisdictions, particularly where commercial gambling has proliferated. Yet research exploring the interconnections between gambling and crime is sporadic, stymied, in part, by the need for a comprehensive, detailed and systematic approach to categorizing the variety of offences that may be linked to wagering activities. In response, this article reviews the extant literature exploring gambling and crime and the ways in which it has been sorted and classified, before outlining a taxonomy through which to examine and better comprehend different types of gambling-related crime. The proposed taxonomy represents a policy-oriented framework through which gambling-related crime research and knowledge may be organized in order to aid risk analysis, regulatory review and crime prevention strategies.