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In recent decades rural violence has escalated in many Latin American countries. Although there is a growing body of literature on the topic, there exist as yet few comparative studies. While there are undoubtedly multiple and evolving causes of violence, this exploratory article focuses on the relationship between sociopolitical violence and agrarian structure and state policy. Particular attention is paid to the impact of agrarian reform and counter-reform experiences on rural conflicts and violence. A contrast is also drawn with countries which have not undergone any significant land reform. The cases discussed are Chile, Peru, Colombia, Brazil, Mexico and several Central American countries (Nicaragua, Guatemala and El Salvador). The complexity of rural violence is demonstrated and the case for further comparative studies is argued, so as to advance our knowledge on the causes, consequences and resolution of violence.  相似文献   
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Nonprofits seek to enhance their reputation for responsible management by joining voluntary regulation mechanisms such as accountability clubs. Because external stakeholders cannot fully observe nonprofits’ compliance with club obligations, clubs incorporate mechanisms to monitor compliance and impose sanctions. Yet including monitoring and sanctioning mechanisms increases the cost of club membership for nonprofits. What factors account for the variation in the strength of monitoring and sanctioning mechanisms in voluntary accountability clubs? An analysis of 224 clubs suggests that stringent monitoring and sanctioning mechanisms are more likely in fund‐raising‐focused clubs, clubs that offer certification (as opposed to only outlining a code of conduct), and clubs with greater longevity. The macro context in which clubs function also shapes their institutional design: clubs in OECD countries and clubs with global membership are less likely to incorporate monitoring and sanctioning mechanisms than clubs in non‐OECD countries and single‐country clubs, respectively.  相似文献   
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In this meta‐analytic study, we looked at all empirical studies that examined the effectiveness of court‐affiliated divorcing parents education programs (DPEs). Overall, we found that DPEs were generally effective. Nineteen studies with a DPE treatment group and no‐treatment control group had an overall significant moderate positive effect (d= .39); those who participated in DPEs were about 50% better off in terms of program outcomes compared to those who did not participate. The studies examined five specific outcomes: co‐parenting conflict, parent‐child relationships, child well‐being, parent well‐being, and relitigation; with most of these specific outcomes we found significant moderate effects ranging from d= .19–.61. However, there were important methodological limitations in this body of research, which are discussed. While more research is needed to confirm the positive potential of DPEs, we probably know enough to justify continuing and even increasing support for this recent social policy innovation.  相似文献   
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While there has been much emphasis over the last decade on the science of nanotechnology and on the implications and risks of potential applications, it is now timely to increase attention to the emerging dynamics of nanotechnology commercialization. This paper examines, from a global perspective, where and how corporations are entering into nanotechnology innovation. The paper tests the proposition that a significant shift has occurred in recent years in the orientation of corporate nanotechnology activities—from research discovery to patented applications. It also examines the extent to which the character and structure of corporate nanotechnology activity by country initially reflects national innovation system characteristics and prior public research funding inputs in the stage when discovery is most emphasized. The results indicate that national innovation systems characteristics are significant factors in the commercialization shift of nanotechnology and highlight the importance of innovation system policy factors. We also observe the influence of cross-border international invention linkages, suggesting that national innovation policies also need to be open and international in orientation.  相似文献   
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