Imperfect Competition and Common Resource Exploitation --An Analysis of Renewable Resource Management with Non-use Values

This article analyzes the importance of non use values in the management of natural resources with a model of imperfect competition.By constucting a framework of duopolistic exploiters,the incorporation of non use values based on self interest and altruistic motives appears to be significant for determining the degree of inefficiency caused by the problem of common property at the non cooperative Nash equilibrium.It is found that when the non use value placed by the altruist exploiter is bounded by that placed by the pure self interest exploiter,the effect of market power is dominated by the effect of common exploitation.In this case,the exploiters' harvesting strategy will response in the same direction to the change of each other's harvesting at the non cooperative Nash equilibrium.In contrast,when the non use value placed by the altruist is substantially larger or smaller than that placed by the self interest exploiter,one exploiter's increase in harvesting will lead to a decrease in harvesting of the other exploiter at the non cooperative Nash equilibrium.

Mountain Commons: Changing Space and Status at Community Levels in the Himalayas

This paper deals with the imperatives of nature-society interaction in the Himalayas as seen through CPR (Common Property Resources). It specifically looks at the process and factors that characterize the dynamics of the above interactions, with particular reference to the changing status and governance of CPRs at community levels. The paper puts together the synthesis of observations and inferences of different studies by ICIMOD and others in mountain regions, particularly in different parts of Nepal, India, Bhutan, Bangladesh, China and Pakistan. Rural CPRs (providing sustenance supplies and services) as an important component of a community’s natural resource base, manifest the institutional arrangements evolved by the communities to facilitate their adaptations to nature. The above process can be more clearly illustrated with reference to specific characteristics of mountain areas, called mountain specificities. However, over time, the situation of CPRs in terms of their extent and status, governance and management as well as contributions to community sustenance, has changed. The paper attempts toindicate potential lead lines for searching options for rehabilitation of CPRs, based on a closer under- standing of the factors contributing to their decline.

Model of Pollution Management Control in Badung River： Enhancing Role of Traditional Law on Common Resource

Badung River in the Denpasar city of Bali Province, Indonesia, faces many challenging issues recently. As a common pool resource, the river has been under pressure from many activities including household activities which dump household wastes, and pollution externalities arising from dyeing and screen-printing of fabric industries. Conventional approach to control the pollution might not be effective since it will end up in zero sum game. This paper attempts to explore the role of traditional institituion in managing common pool resource such as controlling river pollution. This research is aimed to know the effectiveness of traditional law on managing pollution of printing and dyeing industries on this big river. Survey method was used for collecting primary data and then the data was analyzed by ordinal regression to determine the effect of internal and external factors which influence the intensity of pollution. The result indicates that even though traditional might help to influence household and industry＇s decision making, it might not sufficient enough to reduce the pollution of the river. Other factors are influencing the waste management, such as level of waste management knowledge of the entrepreneur, the attitude of the entrepreneur toward public program especially on waste and pollution management, the financial support, and the education level of government supervision. Furthermore, Government of Denpasar City need to arrange policy that giving incentive to businessman who handling waste properly and also giving reward to traditional organization who implementing local wisdom and norm to control river pollution strictly.

Dynamic traffic split scheme in an integrated LTE and HSDPA networks

In the future, the wireless communication networks can be visualized as the integration of different radio access technologies （RATs）, which are referred to as heterogeneous wireless networks （HWNs）. In this paper, the traffic split scheme in the HWNs integrating the long term evolution （LTE） and the high speed downlink packet access （HSDPA） networks is investigated. Assuming that the networks can support multi-homing access and the user can be served by both networks simultaneously, the traffic split problem is described as an optimization problem with the aim of maximizing the throughput. By solving the problem, the dynamic traffic split scheme is proposed. The split ratios in the scheme should be proportional to the transmission rates in theory, which are hard to be described in the closed forms. Then the adaptive algorithm is proposed to obtain the split ratios. Simulation results show that the scheme with the adaptive algorithm provides better performance than the scheme without it over the additive white Gaussian noise （AWGN） fading channel and Rayleigh fading channel.

Fish trader’s gender and niches in a declining coral reef fishery:implications for sustainability

Introduction:The state of natural resources is greatly influenced by market access.Consequently,resource trader's incentives,decisions,and willingness to comply with manage-ment an influence efforts to achieve sustainabi lity.Trader's impacts will depend on their economic niches,which are influenced by cultural norms,skill,social relationshi ps,profitability,and the spatial scale of markets.Consequently,we examined the potential of traders to influence fisheries'sustainability by evaluating their jobs,gender roles,religion,socioeconomic status,association and perceptions of management systems,and future plans.We studied 142 traders in 19 Kenyan coral reef fisheries landing sites distributed among four gear management systems.Outcomes:We found a strong role of gender,geography,and religion in the participation of these fisheries that was primarily driven by fisheries'profitability.The associations suggest that overfished fisheries should retain traders with low education,capital,and savings-often women;whereas sustainable stocks favor the opposite characteristics,and often men.Conclusions:Therefore,managing for increasing yields,profits,and sustainability could exclude women traders unless they successfully access or adopt the more traditional male economic niche.Gender coexistence is most likely to be achieved by managing for inter-mediate resource levels where net production,catch,and fish body size diversity are high.Further,reducing risk and increasing the capital and mobility of women traders should reduce their chances of exclusion when fisheries are sustainable.