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11.
Rent-seeking with asymmetric valuations   总被引:1,自引:0,他引:1  
Nti  Kofi O. 《Public Choice》1999,98(3-4):415-430
This paper analyzes Tullock's rent-seeking game with asymmetric valuations for a variable range of the returns to scale parameter. A necessary and sufficient condition for a unique pure strategy Nash equilibrium is established. Equilibrium effort and expected profits are determined and subjected to comparative statics analysis. Increasing the underdog's valuation induces both players to increase their efforts. Increasing the favorite's valuation increases his effort but decreases the effort of the underdog. Expected profits increase with a player's valuation but decreases with the valuation of the competitor. The impact of the returns to scale parameter is also analyzed.  相似文献   
12.
The vision shared by most development scholars and practitioners today is for beneficiary driven development, the impediment and the means to which both lie with communication. The debate concerns the communication approach that would best realise this vision. This paper examines and critically comments on two major approaches, Development Communication and Development Support Communication, though it argues for neither of these. Rather, it draws on the 'Another Development-Another Communication' paradigm and proposes a Participatory Communication approach, which both resonates in people's own moral values, conforms to the reality of many communities in Africa, and offers better prospects of achieving beneficiary-driven development.  相似文献   
13.
The 21st century public organization is faced with complex problems, informed stakeholders, and information flows, which necessitate a corresponding open system view of leadership. The traditional notions of public administration and new public management had been structured by strict bureaucratic rules and managerial flexibility, respectively. This paper begins by theorizing two hypothetical constructs (helicopter and deadbeat leadership), which engage in extreme micromanagement/surveillance and negligence/indifference, respectively. Those form basis for designing an optimal (transdisciplinary) leadership, which forges synergistic link between leaders, subordinates, and external actors in codesigning objectives and strategies to address societal problems. Strategies to promote transdisciplinary leadership are discussed.  相似文献   
14.

This paper investigates how social media affects general voting patterns. Unlike previous studies investigating whether citizens’ use of social media affects political participation, this paper considers the connections that social media users have with political activists on social media, and how this connectedness influences general voting patterns, using data from Ghana. With contemporary theoretical perspectives and exploratory techniques, trends from past literature are presented, from a social media-based propagated survey with 420 valid responses. Structural equation modeling was used to test the conceptual model, which demonstrates that the connectedness with political and social media activists is significant and positively influences modifications in voting patterns. Online political participation and political affect also present an effect on voting patterns. The relationship between connections with social media political activists and online political participation is significant, as indicated by a strong covariance observed in the model. The results of the multigroup analysis also indicate some cultural and social issues to shape the phenomena for further investigation.

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Journal of Chinese Political Science - Over the past few years, the implementation of the Belt and Road Initiative (BRI) has seen a marked increase among state-owned enterprises and large...  相似文献   
16.
Gonadotropin-releasing hormone (GnRH) agonists, such as leuprorelin, are recommended in the patients with pedophilia at highest risk of offending. However, the cerebral mechanisms of the effects of these testosterone-decreasing drugs are poorly known. This study aimed to identify changes caused by leuprorelin in a pedophilic patient's brain responses to pictures representing children. Clinical, endocrine, and fMRI investigations were done of a man with pedophilia before leuprorelin therapy and 5 months into leuprorelin therapy. Patient was compared with an age-matched healthy control also assessed 5 months apart. Before therapy, pictures of boys elicited activation in the left calcarine fissure, left insula, anterior cingulate cortex, and left cerebellar vermis. Five months into therapy, all the above-mentioned activations had disappeared. No such activations and, consequently, no such decreases occurred in the healthy control. The results of this pilot study suggest that leuprorelin decreased activity in regions known to mediate the perceptual, motivational, and affective responses to visual sexual stimuli.  相似文献   
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Community-based entrepreneurship projects have been advocated as a potential approach to alleviate extreme poverty as they provide opportunities for income generation and capacity enhancement. This practical note provides an overview of the PRODECO project undertaken jointly by the Paraguayan government and the World Bank (1999–2008) in three southern departments of Paraguay (Itapúa, Misiones, and Ñeembucú). It describes and analyses the context, scope, operations, and results of this project, and identifies five main lessons related to frequent challenges faced by this approach; on size, access to skills, distance from government agencies, pace, and technology.  相似文献   
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The proliferation of piracy activity off the coast of Somalia has received a fair share of international attention. Its consequences have included a destabilising effect on trade, security and humanitarian aid. This has served to give reason for the deployment of multi-national forces by some of the countries affected by the scourge. While naval patrols have reduced the success rate of piracy attacks in some areas, there has been little respite in piracy incidents with the overall number of attacks and their geographic scope increasing. Piracy off the coast of Somalia has, in fact, evolved into organised syndicates with transnational networks. The problem is that various international actors have largely viewed piracy off the coast of Somalia in terms of threats to their own national interests and security. They have, thus, dealt with the issue in isolation from its wider context, which has not succeeded in ending the attacks. This article argues that to deal with the piracy problem more meaningfully, there is need for a contextual framework beyond addressing the ‘illegal’ activities. Piracy is a complex problem, with political, legal, social, economic, security and even human rights dimensions, and calls for a truly holistic approach that, especially, seeks to address the root causes on land. The article calls for a change in strategies in order to facilitate a ‘local Somali solution’ rather than an international one that is acceptable to the sensibilities of international actors. The article emphasises the need to extend the strong international cooperation demonstrated on the high seas in the fight against piracy to the fight against root causes of piracy onshore.  相似文献   
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