万佛山丹霞湿地水生植物资源及群落

位于湖南省通道县的万佛山风景区,境内受亚热带湿润季风气候的影响,及丹霞地貌特定生态环境的作用,其境内具有较为发育的丹霞湿地植被。通过调查,发现共有水生植物32科57属84种,其中挺水植物有53种,浮水植物有15种。沉水植物有16种。境内保存着一批珍稀濒危植物,特别是其独有的中华水韭群落,还有野菱、野睡莲群落。并对水生维管植物资源及其群落进行了分析,为今后的合理利用与保护提供科学建议。     

A study on the tourism practitioners＇ perception of tourism impact： a case study of Hainan,China

This study examines the urban population of tourism practitioners perceptions of economic, environmental, and social impacts on cultural, convention, and sport tourism may have in Haikou and Sanya. Hainan, China. The study uses a modified Urban Tourism Impact （UTI） to examine economic, environmental, and social perceived impacts. Analysis of the data includes testing three models of structural relationships between tourism impacts and support for development in each of the tourism market sub-divisions through a confirmatory factor analysis. The results of this study show that the positive economic impacts consistently exert influence on predicting support for tourism development in all three models. However; the social impacts play a greater explanatory role with all three market segment, the negative environmental impacts play a role in determining support for sport tourism only. Differences have been found with those with a higher education level in predicting support for cultural tourism, but not convention or sport tourism.     

Farms’ technical inefficiencies in the presence of government programs*

We focus on determining the impacts of government programs on farms’ technical inefficiency levels. We use Kumbhakar's stochastic frontier model that accounts for both production risks and risk preferences. Our theoretical framework shows that decoupled government transfers are likely to increase (decrease) DARA (IARA) farmers’ production inefficiencies if variable inputs are risk decreasing. However, the impacts of decoupled payments cannot be anticipated if variable inputs are risk increasing. We use farm‐level data collected in Kansas to illustrate the model.     

Do Community Supported Agriculture programmes encourage change to food lifestyle behaviours and health outcomes? New evidence from shareholders

Community Supported Agriculture (CSA) programmes have recently received attention for their potential to influence food lifestyle behaviours and health outcomes, though studies have mostly drawn from small samples (n?t-tests assess if paired means are statistically different, and multiple regressions of paired differences on socioeconomic factors, self-reported health, and years of CSA enrolment estimate the effect of respondent characteristics on behaviour change. The results strongly suggest that CSAs have the potential to positively impact shareholders’ food lifestyle behaviours and health outcomes, and that those reporting ‘poor health’ prior to CSA enrolment exhibited the most change overall. These results should be taken as an initial, yet promising, analysis of the impact of CSA participation on shareholder food lifestyle behaviours and health outcomes.     

Motivations to grow energy crops: the role of crop and contract attributes

Perennial energy crops are a promising source of bioenergy whose production involves production risks, long‐term commitment of land and need for crop‐specific investments without the coverage of crop insurance potentially available for conventional crops. We conduct a choice experiment in five states in the Midwestern and South‐central regions of the U.S. to examine the effect of crop‐contract attributes on the joint discrete‐continuous choice decisions to adopt an energy crop and convert acres to it from a status quo use, while controlling for the effect of various farmers’ risk and time preferences, sociodemographic characteristics, and availability of crop insurance for conventional crops. We find robust evidence that high discount rates, high upfront establishment costs and need for crop‐specific investments create disincentives for adoption and allocation of land to energy crop production. The effects of riskiness of returns and risk aversion are less robust across specifications. The effect of conventional crop insurance on the energy crop adoption decision differs across types of insurance; in particular, farmers with revenue insurance are statistically significantly less likely to adopt an energy crop. Our results have implications for the design of effective contracts and policy incentives to induce the production of energy crops.     

Time orientation and construal level: effects on eating and exercising behaviour and preferences

Eating and exercising behaviour are both characterized by immediate and future consequences. Consequently, consideration of these consequences (i.e. time orientation) predicts eating and exercising behaviour. We investigate whether construal level acts as an underlying mechanism of these relations. Students (N = 101) completed measures of consideration of immediate and future consequences (i.e. CFC‐food and CFC‐exercise), construal level, eating and exercising behaviour and preferences. For self‐reported eating and exercising behaviour, only direct effects of consideration of immediate and future consequences were found. For eating preferences, however, there was evidence of an indirect effect through construal level. A stronger tendency to consider future consequences led to a stronger preference for utilitarian (as compared with hedonic) food products through a more abstract construal level. All in all, construal level partially explains the differential relations between consideration of immediate and future consequences and eating and exercising behaviour and preferences.     

Consumer sorting and hedonic valuation of wine attributes: exploiting data from a field experiment

This article uses a novel experimental approach to measure consumer willingness to pay (WTP) for wine attributes. We invited customers of a local supermarket who had selected a bottle of wine to purchase to participate in a valuation experiment. Integrating their original wine choice into the experiment, each participant evaluated six alternative wines, generating a rich set of data on willingness to pay and consumer characteristics. The data from the experiment allow us to compare standard shelf price‐based wine attribute valuation estimates with estimates using WTP data and an increasing amount of information about individual consumers. The full model employs individual fixed effects to estimate WTP parameters without bias from consumer sorting or supply side influences. Our WTP estimates for wine attributes differ markedly from previous attribute value estimates. Consumers in our sample display clear and stable preferences for wine varieties, but less clear preferences for appellations. Our results suggest caution is needed in using market prices to estimate parameters of the consumer valuation function for product attributes.     

It's not what you know but who you know that's important: the influence of social networks on communities

Since its conception in 1945, the UK National Health Service (NHS) has been the focus of extensive political rhetoric regarding the involvement of patients and the public in the provision of health‐care services both locally and nationally. However, achieving substantial user involvement within local communities has proven to be a complex task. The exploratory research presented in this paper investigates the influence of social networks within local communities and its relevance for user involvement. Four main findings emerged: interviewees have strong informal social networks; there is a strong sense of generalized reciprocity; diversity is limited within the social groupings; and there exists a lack of trust in governmental institutions. With regards to health issues, there is an overriding feeling that ‘things like that should be left to the people who know’. If user involvement is to be achieved at the level envisioned by the UK government, achieving a greater relevance for users is essential.     

THE ‘WHO AND WHY’ OF LOTTERY: EMPIRICAL HIGHLIGHTS FROM THE SEMINAL ECONOMIC LITERATURE

Lotteries operate today in many countries around the world. This type of gambling is usually run by governments and is sometimes described as regressive. Lottery is an unfair bet, so explaining the purchase of lottery tickets by risk‐averse consumers has been a challenge for economic theory. Lotteries can be analysed from either of two economic perspectives: as a source of public revenue or as a consumer commodity. In this paper the state of economic research on lotteries is reviewed, focusing on its main empirical findings.     

An investigation of cultural cohesion in a community bank

This study examines the culture of a medium-sized community bank based in the Western United States. The study aims to identify the organization's culture and then measure the level of cultural cohesion that exists three years after a major cultural campaign was launched. The cultural characteristics the organization valued most highly were integrity, willingness to serve the customer and teamwork - all components of the official bank document on culture. Interestingly, the analysis uncovered some significant value differences among different employee groups and also employees and management; differences which can affect firm performance levels. The analysis also revealed that changing the culture in an organization does not necessarily lead to cultural cohesion.