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Influential studies by Acemoglu, Johnson and Robinson claim that colonial legacies explain the origins of development-promoting property rights and thus account for the modern world income distribution. Specifically, they argue that European colonial powers engineered a global 'reversal of fortune', bringing property rights and prosperity to relatively uninhabited colonies while imposing inefficient institutions on locales with less potential for settlement. We re-evaluate their theoretical arguments and empirical findings and come to a different conclusion. We concur that British colonialism dramatically restructured four colonies, resulting in phenomenal economic success. For the majority of the world, however, colonialism had no discernible effect on property rights. We conclude that contemporary development studies must find another explanation for the modern world income distribution.

The recent wars in Iraq and Afghanistan have been characterized by the deployment of large private military forces, under contract with the US administration. The use of so-called private military corporations (PMCs) and, more generally, of mercenaries, has long attracted criticisms. This article argues that under certain conditions (drawn from the Just War tradition), there is nothing inherently objectionable about mercenarism. It begins by exposing a weakness in the most obvious justification for mercenarism, to wit, the justification from freedom of occupational choice. It then deploys a less obvious, but stronger, argument – one that appeals to the importance of enabling just defensive killings. Finally, it rebuts five moral objections to mercenarism.

Existing empirical models of international co-operation emphasize domestic determinants, although virtually all theories of international relations focus on interdependencies between countries. This article examines how much states' linkages with the international system, relative to domestic factors, such as income and democracy, influence the dynamics of global governance efforts. To this end, we study the ratification behaviour of 180 countries vis-à-vis 255 global environmental treaties. Except for integration into the world economy, which affects co-operative behaviour negatively, our results show that international factors have a stronger and more positive impact on cooperative behaviour than domestic factors. This implies that Galton's advice not to examine the effects of internal and external variables in isolation is also useful in the study of international politics.

Recent policy documents in Britain that have emphasized the importance of integration can be understood as addressing the question of what conditions are required in order to achieve and sustain a just society. The answer they give is that minority cultural groups need to be integrated into society, and that this involves community cohesion, secured through 'meaningful contact', and sharing a national identity based on common values. Here, it is argued that although meaningful contact between members of different cultural groups may promote trust between them, this does not warrant the key role which has been given to the idea of community cohesion. It is suggested instead that policies should aim to foster a widespread sense of belonging to the polity, and that this is not the same as sharing a national identity.

This contribution to the study of democratic inclusiveness advances three main claims, based on Lijphart's original data. First, his measurement of executive inclusiveness is incoherent and invalid. Secondly, executive inclusiveness is best explained by the interaction of many parties and strong legislative veto points. This implies that executive inclusiveness should not be contained in either of Lijphart's two dimensions of democracy. Thirdly, parties have incentives to economize on the costs of inclusive coalitions by avoiding strong legislative veto points, and these incentives are greater in parliamentary than in presidential systems. Hence, Lijphart's favourite version of consensus democracy – characterized by a parliamentary system and a high degree of executive inclusiveness – is unlikely to be a behavioural-institutional equilibrium.

Compulsory voting is sometimes thought to be justified in democracies because it promotes high levels of voting and mitigates inequalities of turnout amongst social groups. Proponents of compulsory voting also argue that it helps to prevent the free-riding of non-voters on voters. This article casts a sceptical eye on both arguments. Democratic citizens do not have a duty to promote their self-interest, and their duties to others do not generally require them to vote, or to attend the polls. So, while people are sometimes morally obliged to vote, and to vote one way rather than another, legal compulsion to vote or to turn out is generally unjustified and inconsistent with democratic government.

Using data from a randomized field experiment within a Deliberative Poll, this paper examines deliberation's effects on both policy attitudes and the extent to which ordinal rankings of policy options approach single-peakedness (a help in avoiding cyclical majorities). The setting was New Haven, Connecticut, and its surrounding towns; the issues were airport expansion and revenue sharing – the former highly salient, the latter not at all. Half the participants deliberated revenue sharing, then the airport; the other half the reverse. This split-half design helps distinguish the effects of the formal on-site deliberations from those of other aspects of the treatment. As expected, the highly salient airport issue saw only a slight effect, while much less salient revenue-sharing issue saw a much larger one.

The British prime minister's power to appoint and dismiss ministers is probably his most important single power. This article explores how prime ministers from Macmillan to Blair have used that power. The article considers the criteria that prime ministers use when choosing to appoint or dismiss individuals from office before examining the calculations and miscalculations that prime ministers have made in practice. Finally, the article analyses the way that prime ministers have exercised, in particular, their power to dismiss and finds that Thatcher was far more likely than others to sack cabinet colleagues on ideological or policy grounds. The article emphasizes that prime ministers' relationships with especially powerful ministers – 'big beasts of the jungle' – are crucial to an understanding of British government at the top.

Are voters sophisticated? Rational choice theories of voting assume they are. Students of voting behaviour are more doubtful. This article examines voting in a particularly demanding setting: direct democratic elections in which two competing proposals are on the ballot. It develops a spatial model of voting and proposal qualification with competing proposals. If voters are naïve, then competing proposals can be used to block the direct democratic route to change, but, if voters vote strategically, competing proposals can bring outcomes closer to the median voter. Voting intention data from California polls provide evidence that some votes are cast strategically even in these demanding circumstances. However, the level of strategic voting appears to be affected by the nature of the election campaign.