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51.
Restoring Wetlands Through Wetlands Mitigation Banks 总被引:3,自引:0,他引:3
This paper offers the first economic analysis of wetlands mitigation banks. The banks are a new alternative for restoration of wetlands by developers before receiving regulatory approval for future development of wetlands in the same watershed. A stochastic optimal control model is developed which incorporates ecological uncertainty of wetlands restoration. The model helps in examining the decisions of how much to invest in a wetlands mitigation bank. The model is calibrated with data from California bioeconomic parameters. Numerical simulation of the model provides a sensitivity analysis of how model parameters of restoration costs, stochastic biological growth, interest rate, and the market value of credits affect the trajectory of investment and the optimal stopping state of wetlands quality when the investment ends. The analysis reveals that restoration of the whole site will occur when there is a reduction in restoration costs, an increase in biological uncertainty or an increase in the value of wetlands credits. Continued restoration is harder to justify with a higher interest rate. 相似文献
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53.
Linda Whetstone 《Economic Affairs》1985,6(2):20-22
The Common Agricultural Policy (CAP) survives despite unprecedented popular opposition in all countries, Linda Whetstone (above), of the Atlas Economic Research Foundation, suggests drastic liberalization would bring political reward. 相似文献
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We examine the long-run relationship between economic growth and democratization for the high performing Asian economies using a time-series technique called the autoregressive distributive lag bounds test. For all eight of such economies, we do not find a statistically significant long-run relationship running from growth to democratization. Instead, we find a statistically significant long-run relationship running from democratization to growth, which can be either positive or negative. Contrary to the conventional wisdom, our results suggest that rapid economic growth in the high performing Asian economies appears to have little effect on democratization in the long run. 相似文献
56.
Georgia's lottery-funded HOPE Scholarship program provides free tuition to in-state students who can maintain a B average at state universities. However, roughly half of HOPE Scholars lose their support after their freshman year. This study employs student-level administrative data to identify the observed characteristics that systematically relate to scholarship attrition. Conditional on measures of student ability, there are not statistically significant differences between white, black, and Hispanic students. However, there are dramatic differences across academic disciplines. Students majoring in science, engineering, and computing are 21 to 51 percent more likely to lose their HOPE Scholarships than students in other disciplines. 相似文献
57.
Journal of Financial Services Marketing - Focusing bias is one of the key contributors to over-borrowing. It describes how people, when making choices, give disproportionate attention and weight to... 相似文献
58.
The approach of promoting a destination through native resources is intriguing. This research attempted to assess the role of native species in contributing to the success of a destination through their contribution to sense of place. It illustrated the mechanisms and preconditions through which native species can contribute to the distinctiveness of a destination. This research has uncovered a number of factors explaining the potential of a native species to become a viable contributor to a destination's sense of place. In a nutshell, a prospective native species can potentially become a viable option with which a destination can build its sense of place and overall identity if that particular species has a strong biological foundation in the natural environment; if it has been embraced or endeared by residents through social and historical processes; and if there are ample opportunities for tourists to experience and interact with it, through which endearment among tourists and a strong sense of place can be built. The Provençal cicada was used as an illustrative case. The adoption of the cicada by Bouches-du-Rhône tourism as a regional symbol and for use in its communications reinforces the cicada's contribution to the destination's identity and sense of place. 相似文献
59.
Elizabeth H. Weybright Linda L. Caldwell Nilam Ram Edward A. Smith Lisa Wegner 《Leisure Sciences: An Interdisciplinary Journal》2013,35(4):311-331
Reducing adolescent substance use is important in South Africa, a developing nation with increasing adolescent substance use, lack of leisure/recreation opportunities, and high rates of adolescent discretionary time. Previous research suggests leisure boredom and adolescent substance use co-occur in this setting. Using longitudinal data from 2,580 South African adolescents as they progressed from the 8th to 11th grade, the current study disentangles the associations of trait and state leisure boredom with substance use, and examines how ability to restructure boring situations moderates those associations. On average, individuals with higher trait boredom used more substances, and on occasions when state boredom was high, the prototypical adolescent used more substances. Although restructuring did not moderate these associations, greater ability was associated with lower substance use independent of leisure boredom. Findings illustrated the importance of considering how trait and state aspects of leisure may contribute to adolescents’ risk behavior and addressed through preventive intervention. 相似文献
60.
Jeff Wilks Harry Kanasa Donna Pendergast Ken Clark 《International journal of injury control and safety promotion》2017,24(3):283-292
Childhood drowning remains a serious public health problem worldwide. The Australian Water Safety Council has set as one of its highest priorities the reduction of drowning deaths in children aged 0–14 years. However, concerns have recently been raised that many students completing primary school still lack the ability to recognize potential aquatic risks, cope with emergencies or assist someone else in danger. In this study, 107 primary school children aged 11–12 completed a one day training programme led by surf lifesaving instructors. Pre, post and eight week follow-up measures showed statistically significant improvements in recognition of the red ‘beach closed’ flag, aquatic safety signs, how to identify a rip current and choosing the safest place to swim at a beach that included a rip current in the picture. Following training students were more willing to provide first aid assistance to family members and friends in an emergency situation. Findings reinforce the value of school-based training that provides a general foundation for aquatic safety, with the caveat that current programmes must be evaluated to ensure their content has a robust prevention focus. 相似文献