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211.
We explore how two populations learn to cooperate with each other in the absence of institutional support. Individuals play iterated prisoner's dilemmas with the other population, but learn about successful strategies from their own population. Our agent-based evolutionary models reconfirm that cooperation can emerge rapidly as long as payoffs provide a selective advantage for nice, retaliatory strategies like tit-for-tat, although attainable levels of cooperation are limited by the persistence of nonretaliatory altruists. Learning processes that adopt the current best response strategy do well only when initial conditions are very favorable to cooperation, while more adaptive learning processes can achieve high levels of cooperation under a wider range of initial conditions. When combined with adaptive learning, populations having larger, better connected learning relationships outperform populations with smaller, less connected ones. Clustered relationships can also enhance cooperation, particularly in these smaller, less connected populations. 相似文献
212.
According to the democratic domino theory, increases or decreases in democracy in one country spread and "infect" neighboring countries, increasing or decreasing their democracy in turn. Using spatial econometrics and panel data that cover over 130 countries between 1850 and 2000, this article empirically investigates the democratic domino theory. We find that democratic dominoes do in fact fall as the theory contends. However, these dominoes fall significantly "lighter" than the importance of this model suggests. Countries "catch" only about 11% of the increases or decreases in their average geographic neighbors' increases or decreases in democracy. This finding has potentially important foreign policy implications. The "lightness" with which democratic dominoes fall suggests that even if foreign military intervention aimed at promoting democracy in undemocratic countries succeeds in democratizing these nations, intervention is likely to have only a small effect on democracy in their broader regions. 相似文献
213.
Tobias Jung Tim Scott Huw T. O. Davies Peter Bower Diane Whalley Rosalind McNally Russell Mannion 《Public administration review》2009,69(6):1087-1096
Organizational culture is widely considered to be one of the most significant factors in reforming and modernizing public administration and service delivery. This article documents the findings of a literature review of existing qualitative and quantitative instruments for the exploration of organizational culture. Seventy instruments are identified, of which 48 could be submitted to psychometric assessment. The majority of these are at a preliminary stage of development. The study's conclusion is that there is no ideal instrument for cultural exploration. The degree to which any measure is seen as "fit for purpose" depends on the particular reason for which it is to be used and the context within which it is to be applied. 相似文献
214.
What participation mechanisms connect citizens and city officials? Do they produce valued outcomes? Surveys of elected officials suggest that microlevel mechanisms such as direct citizen contact are more valuable in meeting participation goals than are mechanisms focusing on macrolevel concerns. However, there is a disconnect between perceptions about value and the use of mechanisms. State‐level participation requirements and a city manager have little effect on the value of a mechanism. These findings raise some questions: why are microlevel participation mechanisms favored, why do some mechanisms have value even though respondents have little experience with them, and why is there a misalignment between participatory goals and the mechanisms used? 相似文献
215.
Jermain T.M. Lam 《Australian Journal of Public Administration》2009,68(S1):S73-S83
This article assesses the practice of political accountability in Hong Kong: whether it has largely been realised in practice, or whether it is merely a political slogan for the government to justify its executive-led governance. The analysis begins with a review of the theoretical concepts of political accountability and ministerial accountability, and then establishes an operational framework to analyse the current practice of political accountability in Hong Kong's political system. It concludes by addressing the degree of political accountability overall. 相似文献
216.
Revisiting Adjusted ADA Scores for the U.S. Congress, 1947-2007 总被引:1,自引:0,他引:1
217.
Malaysians firms have made inroads into the non-traditional export markets. Such ventures are expected to result in increased knowledge about the marketing systems that are posited to be different from the traditional export markets. This paper reports on the perceived improvement in marketing competencies of Malaysian exporters. The results of data analysis show that there are five dimensions of marketing competency. In ranking order, segmenting and targeting competency is ranked highest followed by product management, export management, product differentiation and promotion. Multiple regression analysis was performed to test the explanatory power of each marketing competency on export performance of firms exporting to China and ASEAN countries. The result revealed that none of the marketing competency explained the variation in export performance for the China market. However, among exporters in ASEAN countries, it was noted that promotion competency resulted in a negative impact on both measures of export performance. Product competency is positively associated with financial measure of export performance. Competencies in segmenting and targeting, and export management are positively associated with non-financial performance. 相似文献
218.
General practitioners (GPs) are assumed to occupy an important position in the prevention of suicide through the introduction of risk assessment techniques commonly used in psychiatric practice. Despite this theoretical role for primary care services, it remains unclear how frequently GPs implement risk assessment in patients who may be vulnerable to suicide. To address this, a retrospective survey of probable suicides was conducted within a primary care setting utilizing a questionnaire of GPs who had experienced a patient suicide and was augmented by hospital and coroners' records. 85% of questionnaires were returned and 61 deaths were adjudged as suicides during the year long census period. 75% of suicides were male and 54% were aged under 35.28% were in contact with psychiatric services prior to death, although 60% had some diagnosis of mental disorder. GPs had little knowledge of a patient's life circumstances in up to half of cases. Recording of risk assessment occurred in 38% of subjects, was positively associated with prior psychiatric contact (p = 0.001) but negatively associated with presence of physical illness (p = 0.004), older patient age (p = 0.04), and GPs length in practice (p = 0.05). One GP felt their suicide case was preventable. The low rate of risk assessment and limited knowledge of patient lifestyle point to the need for active engagement of GPs in future suicide prevention strategies and should influence the content of training programs in primary care. 相似文献
219.
220.
Michelle Wierson Sarah D. Nousiainen Rex Forehand Amanda McCombs Thomas 《Journal of family violence》1992,7(1):9-18
Much attention has been paid to the nature of parent-adolescent relationships, with a frequent conclusion being that it is a time of marked disagreement between parents and their adolescents. However, other literature suggests that this time is not inherently conflictual. The purpose of this study was to examine agreement and disagreement between mothers, fathers, and adolescents on specific issues. Then, adolescent adjustment was assessed, and the degree to which it was a function of congruence with parents was examined. A modified version of the Issues Checklist was used to measure intrafamily agreement; the Revised Behavior Problem Checklist and the Harter Scale of Child's Actual Competence were completed by adolescents' social studies teachers to assess adolescent functioning. Relative to their parents, adolescents reported that they should make more decisions alone, while both mothers and fathers reported that decisions should be made jointly among all family members. Only father-adolescent congruence was found consistently to be related to adolescent functioning. Possible explanations for the present results and relevant issues pertaining to family agreement are discussed. 相似文献