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Abstract. Several studies have shown dissimilarities between political leaders and voters in terms of political attitudes and policy preferences. Though many explanations have been offered for this phenomenon, the knowledge factor has been overlooked. The basic question of this paper is how knowledgeable politicians are of the political opinions of their voters as well as of the general public. Forty-six national Dutch politicians were asked to estimate the percentage of the public at large and of their own voters who agree with specific political statements. These estimates were then compared with the actual distribution of opinions. Though using a rather strict criterion it has been found that politicians tend to give inaccurate estimates of the public's support for various political issues. The inaccuracy does not differ between members of the government and members of parliament, but politicians of parties in office appear to perform worse than members of opposition parties. The data do not support the hypothesis about politicians' ability to correctly estimate majority and minority opinions, or to accurately localize their own voters relative to the public at large. Furthermore it is observed that politicians overestimate rather than underestimate differences in opinion between the electorate and their own voters. No difference is found in politicians'estimates of political issues which can or cannot be classified in terms of 'left' or 'right'. In addition, politicians do not judge their voters to be more right-wing than they actually are. Contrary to our hypothesis, Social-Democratic politicians are not more likely to show a 'conservative bias' in estimating their voters' preferences compared to politicians from the Christian-Democratic and Liberal parties. Finally, the relevance of our findings for political sciences as well as some normative consequences are briefly discussed.  相似文献   
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PAUL PIERSON 《管理》1995,8(4):449-478
Despite political scientists' growing appreciation of the ways in which institutions influence political processes, the “new institutionalism” has so far had a limited impact on the comparative study of welfare state development. This article discusses some broad issues concerning institutions and public policy by exploring the implications of one set of institutions — those associated with federalism — for the politics of social policy. Federal institutions encourage three distinctive dynamics: they influence the policy preferences, strategies, and influence of social actors; they create important new institutional actors (the constituent units of the federation); and they generate predictable policymaking dilemmas associated with shared decision-making. Comparisons between social policy development in Canada and the United States are used to demonstrate that while federalism clearly matters, how it matters will depend on the characteristics of a particular federal system and the ways in which federal institutions interact with other important variables.  相似文献   
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The initial encounters between Al Qaeda and the U.S. military taught both a series of lessons that reverberate across the battlefields of Afghanistan today. Both sides entered the fray with preconceived ideas of their enemy—ideas that disappeared on the battlefields of the Shahi-Kot valley. The United States was determined not to repeat the mistakes of the siege of Tora Bora. Their battleplan called for a lightning fast operation using highly mobile U.S. and Afghan forces to envelop the enemy, but failures of intelligence and the fog of war transformed Anaconda into a long, slow struggle against an often invisible foe. Al Qaeda had all the advantages of terrain and defense but was unable to cause the massive casualties they thought would drive the American invaders from Afghanistan. Both sides left the battlefield with valuable lessons that have prevented any similar encounters since silence returned to the Shahi-Kot.  相似文献   
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Canada, along with most other Western, industrialized countries, has experienced a dramatic increase in both the overall volume and the rate of official crime, as well as significant increases in the amount of female crime since the mid-1950's. Several authors have suggested that much of this increase in official crime is related to major demographic fluctuations, such as the post-war “baby-boom.” Specifically, in this paper it is maintained that a large proportion of the increase in the overall amount of crime is due to both absolute as well as relative increases in those segments of the population which have high a priori crime rates.

Using 1957 as a base year, the volume of convictions for criminal offenders in Canada is standardized for population size, age structure, and sex composition effects. It was found that approximately one-half of the increase in volume of crime could be attributed to overall population growth. The impact of age structure and sex composition was not unambiguous, however, with the period 1958–1964 showing a greater sensitivity to these variables than the period 1965–1973.  相似文献   

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