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41.
Charles W. Mahoney 《安全研究》2017,26(1):30-59
Private military and security companies are integral components of the defense and intelligence operations of some of the world's most powerful states. Despite the increasingly pivotal role of contractors, analysts have yet to develop theories explaining when governments should outsource national security responsibilities or what conditions cause private defense markets to function efficiently. This inquiry addresses this gap in the literature by demonstrating that varying market structures—that is, the quantity of firms providing similar services and the number and purchasing power of those buying these services—have significant effects on costs, oversight, and company performance in the private defense industry. A principal–agent framework is developed to explain variation in the performance of firms in different markets across the industry. Evaluation of three private defense markets yields the surprising conclusion that monopsony, rather than a competitive market, is the ideal structure for governments outsourcing aspects of national defense. 相似文献
42.
Charles Buxton 《Central Asian Survey》2009,28(1):43-58
Based on research carried out by INTRAC (International NGO Training & Research Centre) in 2006–2007 in four countries of Central Asia for Oxfam–Novib, the article investigates NGO networks and their international links in the context of current theory on civil society and global civil society. Three case studies of NGOs working in service delivery, community development and free media are examined to show the diversity of aims and the potential and challenges of networking in the region. Civil society advocacy at national and international levels is analysed with a fourth case study on the campaign conducted in Kyrgyzstan against joining the World Bank's Highly Indebted Poor Countries programme. This example shows a more radical, alternative mode of civil society activism. The article emphasizes the importance of national- and regional-level networking and poses the question of whether NGOs in Central Asia can shift from their current positions on the periphery of global movements and debates. 相似文献
43.
44.
Charles Grémont 《Canadian journal of African studies》2014,48(1):29-40
Since the 1980s, the so-called “nomadic” populations in the regions of Northern Mali and Niger have embarked on an extensive process of settlement. Today they mostly live in villages or “settlement sites”. But, at the same time, individuals and small groups among these same populations have considerably enlarged their area of mobility and accelerated the rate and the value of the trade in which they engage. These two phenomena could, at first sight, appear contradictory. But the observation of empirical situations shows, rather, compatibilities, similarities even, between these two concomitant phenomena. Building on innovative debates conducted in geography and sociology, this article puts forward the hypothesis that the building of villages, as well as integration into military bases and barracks, proceeds from (social) rationales of mobility, just as much as transhumance, journeys, migration. Much more than a simple displacement in space, the notion of mobility could describe an “art of doing”, a way of being to others and to the world. 相似文献
45.
Charles Z. Levkoe Josh Brem-Wilson Colin R. Anderson 《The Journal of peasant studies》2013,40(7):1389-1412
ABSTRACTThis article is situated within nascent debates on the role of academics within food sovereignty movements. Drawing on insights from a collective autoethnography, we report on our experiences conducting three food sovereignty research projects in different contexts and at different scales. We suggest that that the principles and practices of food sovereignty translate into a food sovereignty research praxis. This consists of three pillars focusing on people (humanizing research relationships), power (equalizing power relations) and change (pursuing transformative orientations). This article discusses these pillars and analyzes the extent to which we were able to embody them within our projects. 相似文献
46.
Public Choice - Within political science, a movement focused on increasing the credibility of causal inferences (CIs) has gained considerable traction in recent years. While CI has been... 相似文献
47.
James J. Mazza Charles B. Fleming Robert D. Abbott Kevin P. Haggerty Richard F. Catalano 《Journal of youth and adolescence》2010,39(6):579-593
Few studies have examined risk factors of childhood and early adolescent depressive symptomatology trajectories. This study
examined self-report depressive symptomatology across a 6-year time period from 2nd to 8th grade to identify latent groups
of individuals with similar patterns of depressive phenomena in a sample of 951 children (440 girls, 511 boys). Analyses,
using semiparametric group modeling (SGM), identified 5 trajectory groups for girls and boys: low depressed stables, low depressed
risers, mildly depressed stables, moderately depressed changers, and moderately depressed risers. Individual risk factors,
with the exception of shy/withdrawn behavior, were significantly different across trajectory group membership for boys and
girls, as was low-income status for boys. Boys in the low depressed and mildly depressed stable trajectory groups had significantly
higher levels of antisocial behavior, attention problems, and lower social competency compared to girls in similar groups.
These results suggest that universal prevention programs implemented in early elementary school that target selected risk
factors may be helpful in reducing future adolescent mental health problems, specifically depressive symptomatology. 相似文献
48.
Social capital has attracted increasing attention in recent years. We use county-level and individual survey data to study how Wal-Mart affects social capital. Estimates using several proxies for social capital—such as club membership, religious activity, time with friends, and other measures—do not support the thesis that “Wal-Mart destroys communities” by reducing social capital. We measure exposure to Wal-Mart two ways: Wal-Marts per 10,000 residents and Wal-Marts per 10,000 residents aggregated over the years since 1979 to capture a more cumulative “Wal-Mart Effect.” We find that the coefficients on Wal-Mart’s presence are statistically insignificant in most specifications. 相似文献
49.
Dallas Burtraw Jacob Goeree Charles A. Holt Erica Myers Karen Palmer William Shobe 《Journal of policy analysis and management》2009,28(4):672-691
Environmental markets have several institutional features that provide a new context for the use of auctions and that have not been studied previously. This paper reports on laboratory experiments testing three auction forms—uniform and discriminatory price sealed‐bid auctions and an ascending clock auction. We test the ability of subjects to tacitly or explicitly collude in order to maximize profits. Our main result is that the discriminatory and uniform price auctions produce greater revenues than the clock auction, both with and without explicit communication. The clock appears to facilitate successful collusion, both because of its sequential structure and because it allows bidders to focus on one dimension of cooperation (quantity) rather than two (price and quantity).© 2009 by the Association for Public Policy Analysis and Management. 相似文献
50.
Charles David Freilich 《Terrorism and Political Violence》2017,29(2):359-376
The percentage of Israelis killed by terrorism is higher than in any other democracy. The article analyzes the threats Israel has faced, the impact terrorism has had on Israel, and the counter-terrorism policies Israel has adopted. Terrorism has had a decisive effect on Israeli elections and national security decisions, but not the economy. Israeli counter-terrorism has often been conducted without a coherent overall policy, has failed to reflect and conflicted with broader objectives, and has greatly undermined Israel's international standing. Conversely, it has enabled Israel to live in relative security and thrive, and provided its leaders with the latitude to pursue various policies, including peace, should they wish to do so. 相似文献