Monotone Comparative Statics for Models of Politics

We elucidate a powerful yet simple method for deriving comparative statics conclusions for a wide variety of models: Monotone Comparative Statics ( Milgrom and Shannon 1994 ). Monotone comparative static methods allow researchers to extract robust, substantive empirical implications from formal models that can be tested using ordinal data and simple nonparametric tests. When these methods apply, they can replace a diverse range of more technically difficult mathematics (facilitating richer, more realistic models), assumptions that are hard to understand or justify substantively (highlighting the political intuitions underlying a model's results), and a complicated set of methods for extracting implications from models. We present an accessible introduction to the central monotone comparative statics results and a series of practical tools for using these techniques in applied models (with reference to original sources, when relevant). Throughout we demonstrate the techniques with examples drawn from political science .     

苏格兰警务工作改革的八个热点问题

警务工作必须随着社会的发展变化而不断进行调整和改良。进入21世纪后,苏格兰社会发生了许多深刻的变化,与之相适应,苏格兰警察正面临着一系列挑战和问题。未来苏格兰警务工作改革包括八个热点问题,即社区警务、警察的领导与管理、打击犯罪工作、毒品问题、青少年问题、警察在整个刑事司法体系中的角色转变、警察责任与警察投诉以及中央警务与地方警务两种模式之间的选择。     

The Consequences of Collective Action: An Incomplete-Contracts Approach

Public policy may be determined as much by what cannot be agreed to by politicians and organized interests as by what can. Focusing on the inability of organized groups to credibly promise that their members will fully report revenues to tax authorities, I develop an incomplete-contracts lobbying model that shows that the provision of collective goods may be influenced by the anticipated tax compliance of economic sectors as well as by the organization of interests. Data from a survey of firms in Eastern Europe and the former Soviet Union are broadly supportive of the theory: the ability of firms to hide revenues from tax authorities rivals conventional collective-action variables in explaining variation in collective-goods provision, but only in that part of the postcommunist world where differences in revenue hiding across sectors are especially large.     

The pregnant woman and the good Samaritan: can a woman have a duty to undergo a caesarean section?

Although a pregnant woman can now refuse any medical treatment needed by the fetus, the Court of Appeal has acknowledged that ethical dilemmas remain, adverting to the inappropriateness of legal compulsion of presumed moral duties in this context. This leaves the impression of an uncomfortable split between the ethics and the law. The notion of a pregnant woman refusing medical treatment needed by the fetus is troubling and it helps little simply to assert that she has a legal right to do so. At the same time, the idea that a pregnant woman fails in her moral duty unless she accepts any recommended treatment or surgery--however great the burden--is also not without difficulty. This article seeks to find a way between these two somewhat polarized positions by arguing that, instead of being a question primarily about whether legally to enforce moral obligations, the 'maternal-fetal conflict' begins with previously unrecognized difficulties in determining when a woman's prima facie moral rights invoked in the treatment context should 'give way' to the interests of the fetus. This difficulty is mirrored within the law. Thus, how can we tell when a pregnant woman has the moral or legal duty to submit to a caesarean section? Seen in this way, the conflict is a problem which lies at the interface between moral and legal rights and duties, showing that there are important conceptual links between the ethics and the law. Against this background, this article explores the limits of a pregnant woman's right to bodily integrity by focusing upon the idea of her moral duty to aid the fetus through her body. Here we find difficulties in determining the existence and extent of this somewhat extraordinary duty. Such a duty is contrasted with both negative and positive duties toward others in the course of 'general conduct.' Attention to the social context of pregnancy and the refusal of treatment within this is also instructive. Overall, the purpose is to foster understanding and acceptance of the current legal position.