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排序方式: 共有600条查询结果,搜索用时 31 毫秒
561.
Abstract: The issue of whether or not asset prices are more volatile than the underlying fundamentals is an empirical question with implications for market efficiency. Recent research suggests that the volatility of closed end fund returns in the USA is significantly higher than the returns on assets held by the funds. This has been attributed to noise trading as closed‐end fund shares are predominantly held by individual investors. This study demonstrates that UK investment trust returns exhibit similar excess volatility in spite of the prevalence of institutional investors. However, big investment trusts in terms of market capitalisation show greater excess volatility than small trusts. Although most of the excess volatility appears to be idiosyncratic, investor sentiment index is the most important variable associated with residual returns. 相似文献
562.
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564.
This paper employs establishment level data from the annual respondents database to consider technological differences between establishments operating in the UK. We adopt very precise measures of technology, arguably much more detailed than have hitherto been employed to address the key question of whether use of technology differs by nationality. After numerous controls we find that typically North American establishments have a higher probability of being more technologically intensive than their UK counterparts. This result also stands up in panel analysis. 相似文献
565.
The Rise of Oversight and the Decline of Mutuality? 总被引:1,自引:0,他引:1
566.
Nigel Magson Claire Routley 《International Journal of Nonprofit & Voluntary Sector Marketing》2009,14(4):333-340
- Legacies provide a major source of income to charities, and their importance is only likely to increase with the passing on of the baby-boomer generation. Legacy fundraising is a long-term process, based on developing relationships with donors over time. Data have a key role to play in the development of these relationships, allowing legacy fundraisers to measure and track their donors, and to contribute to the development of effective fundraising strategies. This paper discusses the effective collection and use of data in legacy fundraising, from consolidating data, to analysing the results and building legacy targeting models. The authors discuss how these principles have been applied in UK-based charity, Help the Aged, in conjunction with their Data Agency, Tangible Data (formerly Talking Numbers) and to give practical advice on how they may be implemented in other organisations.
567.
An Evaluation of Bani (Dambo) Systems as a Smallholder Irrigation Development Strategy in Zimbabwe 总被引:1,自引:0,他引:1
Godswill Makombe Ruth Meinzen-Dick Stephen P. Davies R. K. Sampath 《Revue canadienne d'agroeconomie》2001,49(2):203-216
There is little disagreement among experts that to increase agricultural production in sub‐Saharan Africa, especially in the semiarid areas, in view of the fact that these areas receive limited rainfall and face frequent droughts and have only 15% of their irrigation potential developed and utilized, irrigation development is critical. Due to high costs of infrastructure development of conventional irrigation systems and the prevalence of general pessimism based on the current low level of performance of the already existing projects in terms of financial, managerial and environmental objectives, it is imperative to evauate smallholder irrigation systems under farmer management as an alternative and/or complementary irrigation development strategy. This paper compares and evaluates the socio‐economic characteristics and the technical efficiency of the Bani system to the formal systems and makes recommendations for its development. Les experts conviennent généralement qu'il faut irriguer pour accroître la production agricole dans l'Afrique sub‐saharienne, surtout dans les régions semi‐arides où il pleut relativement peu, où la sécheresse sévit fréquemment et où les possibilités d'irrigation n'ont été développées qu'à quinze pour cent. Face au coût d'infrastructure élevé des systèmes d'irrigation classiques et au pessimisme général qu'engendre la piètre performance des projets existants quant à la réalisation des objectifs financiers, administratifs et environnementaux, il est impérieux d'évaluer l'utilité des petits systèmes d'irrigation exploités par les cultivateurs comme solution de rechange ou solution complémentaire à la stratégie actuelle de développement de l'irrigation. L'article que voici compare et évalue les paramètres socioéconomiques et l'efficacité technique du système Bani aux systèmes officiels en formulant des recommandations sur son extension. 相似文献
568.
While income is generally considered an important determinant of health, little evidence has been offered on the reverse
relationship, particularly for developed economies. This paper considers the effect of self-assessed general and psychological
health on hourly wages using longitudinal data from six waves of the British Household Panel Survey. We employ single equation
fixed effects and random effects instrumental variable estimators suggested by Hausman and Taylor (1981), Amemiya and MaCurdy
(1986), and Breusch, Mizon and Schmidt (1989). Our results show that reduced psychological health reduces the hourly wage
for males, while excellent self-assessed health increases the hourly wage for females. We also find the health variables to
be positively correlated with the time-invariant individual effect. Further, we confirm the findings of previous work which
suggested that the majority of the efficiency gains from the use of the instrumental variables estimators fall on the time-invariant
endogenous variables, in our case academic attainment, and add further support to the hypothesis of a negative correlation
between educational attainment and individual characteristics which affect wages.
First version received: January 2000/Final version received: October 2000 相似文献
569.
Smart fund managers? Stupid money? 总被引:1,自引:0,他引:1
Abstract . We develop a model of mutual fund manager investment decisions near the end of quarters. We show that when investors reward better performing funds with higher cash flows, near quarter-ends a mutual fund manager has an incentive to distort new investment toward stocks in which his fund holds a large existing position. The short-term price impact of these trades increase the fund's reported returns. Higher returns are rewarded by greater subsequent fund inflows which, in turn, allow for more investment distortion the next quarter. Because the price impact of trades is short term, each subsequent quarter begins with a larger return deficit. Eventually, the deficit cannot be overcome. Thus, our model leads to the empirically observed short-run persistence and long-run reversal in fund performance. In doing so, our model provides a consistent explanation of many other seemingly contradictory empirical features of mutual fund performance. 相似文献
570.
This paper examines the effect of FDI on child labor. Using 1995 data for 145 countries, we find that, contrary to common fears, FDI is negatively correlated with child labor. This effect disappears when controlling for per capita income. After doing so, we find no robust effect of either FDI or international trade on child labor. This result is robust to corrections for the endogeneity of FDI, trade, and income. Furthermore, this result is confirmed using data from earlier years. This suggests that the impact of FDI and trade on child labor, if any, is the increases in income they generate. 相似文献