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161.
卫生技术评估(Health technology assessment,HTA)是对卫生保健技术应用所产生的短期与长期结果进行检验的一种政策研究形式。评估的内容包括安全性、有效性、患者自报结果、现实效果、成本和成本一效果以及社会、法律、伦理和政治影响等。 相似文献
162.
Brian L. Holland 《Leisure Studies》2013,32(4):261-277
This paper explores the burden of racial harassment and abuse on Britain's black footballers and places this in the context of leisure time racism. It is based on research carried out between 1989 and 1994. It is suggested that the source of such racism has been a neglected issue and only gained significant recognition in 1993 when the Commission for Racial Equality launched its Let's Kick Racism Out of Football campaign. It is argued that the racial abuse and chanting aimed at black footballers are examples of racial harassment. The research gathered evidence from two locations - Leeds and Newcastle - to assess the extent to which players were being disproportionately affected by this harassment and introduces the concept of 'burden of abuse'. Some historical background is provided and football stadia are considered as key symbolic leisure sites where a basic white working class racism has found expression. The growth of black footballers since the 1970s is considered, as well as the way such players have survived the racial harassment, some of whom were interviewed as part of the research exercise. 相似文献
163.
Brian Douglass 《American journal of economics and sociology》2012,71(5):1205-1218
Meir Kohn ( 2004 ) argues that two methodologies, the “value paradigm” and the “exchange paradigm,” dominate modern economics with the equilibrium‐focused value paradigm increasingly replaced by the more successful exchange paradigm. This article examines the question of modern economic methodologies and seeks to determine if the shift described by Kohn can be seen in the winners of the Nobel Prize in Economics (1969–2010). Trends in Nobel laureates suggest that Kohn's depiction of the two paradigms and their relationship appears accurate. 相似文献
164.
William A. Brock Steven N. Durlauf Giacomo Rondina 《Journal of Economic Dynamics and Control》2013,37(12):2710-2728
This paper characterizes the frequency domain properties of feedback control rules in linear systems in order to better understand how different policies affect outcomes frequency by frequency. We are especially concerned in understanding how reductions of variance at some frequencies induce increases in variance at others. Tradeoffs of this type are known in the control literature as design limits. Design limits are important in understanding the full range of effects of macroeconomic stabilization policies. We extend existing results to account for discrete time bivariate systems with rational expectations. Application is made to the evaluation of monetary policy rules. 相似文献
165.
Rod Cross Victor Kozyakin Brian O'Callaghan Alexei Pokrovskii Alexey Pokrovskiy 《Metroeconomica》2012,63(2):250-294
This paper investigates arbitrage chains involving four currencies and four foreign exchange trader‐arbitrageurs. In contrast with the three‐currency case, we find that arbitrage operations when four currencies are present may appear periodic in nature, and not involve smooth convergence to a ‘balanced’ ensemble of exchange rates in which the law of one price holds. The goal of this article is to understand some interesting features of sequences of arbitrage operations, features which might well be relevant in other contexts in finance and economics. 相似文献
166.
167.
William P. Racine 《Journal of Leadership Studies》2015,9(3):23-41
The current study examined the retrospective experience of scientists and engineers as they became new unit leaders in science and engineering firms. The goal of the study was to propose a theory that would lead to a better understanding of how scientists and engineers can be successful in their evolution into new leaders. The evolution was considered in the context of Robledo, Peterson, and Mumford's (2012) 3‐Vectors Model to appreciate the situation in which new leaders in scientific and engineering firms find themselves. The evolution was then considered in the perspective of Social Identity Theory to understand the relational development of the scientist or engineer as a new leader. The theory that emerged was that without a sound understanding of both the situation and adaptation of a new sociotechnical identity, achieving success in the leadership role is, at best, uncertain. Identity development and situational understanding are both necessary to facilitate and expedite the transition of scientists and engineers into the new leadership role. The transition from staff‐level scientist to leader can be made more productive through individual and organizational action espoused herein. The implications reveal many aspects of importance for organizations, individuals, researchers, and educators in Science, Technology, Engineering, and Math (STEM) and similar technical disciplines. 相似文献
168.
William Cannon Hunter 《International Journal of Tourism Research》2015,17(2):151-160
The demilitarized zone (DMZ) and Dokdo mark South Korea borders with North Korea and Japan respectively. Each borderland is a socially constructed symbolic cultural landscape shaped in part by tourism. In this study, a sample of 2202 online images was inspected using content‐semiotic analysis to understand how visual representation of border tourism works. It was found that visitors via social media and government censorship play major roles in constructing representations of (i) alienated borders with iconic war heritage attractions at the DMZ and (ii) an alienated and isolated Dokdo. Both borders highlight patriotic/nationalistic ‘flagging’ and the gaze across. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
169.
This study examines the determinants of Facebook activity levels with a particular focus on Facebook activity around earnings announcements. Facebook activity is generally higher for firms with higher levels of analyst following, individual ownership, and trading volume, indicating that it is responsive to investor demand effects. Facebook activity also increases around earnings announcements, with the increase being largely attributable to posts containing earnings news. In general, therefore, firms use Facebook posts to amplify earnings news. Such activity is selective, however; it is lower for firms with high levels of information asymmetry, for firms reporting earnings that exactly meet the consensus analyst forecast amount, and when the earnings news is negative but the accompanying price movement is positive. Hence, firms appear to use Facebook to manage the level of attention paid to earnings news. 相似文献
170.
Steve Lin William N. Riccardi Changjiang Wang Patrick E. Hopkins Gary Kabureck 《Contemporary Accounting Research》2019,36(2):588-628
One of the primary objectives of both adoption of IFRS and convergence between IFRS and U.S. GAAP is to increase financial statement comparability. Using a unique setting in Germany, we compare the effectiveness of these two approaches in achieving this desired outcome. Our empirical tests show that both adoption and convergence lead to an increase in comparability after the new enforcement regulation in 2005. However, difference‐in‐differences tests show that adoption does not lead to a significant incremental increase in comparability beyond convergence. The findings of this study should be of interest to regulators and standard setters as they assess alternative methods of aligning domestic standards with IFRS. 相似文献