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1.
买忆媛  彭一林 《管理学报》2006,3(2):199-203
风险投资对促进创新活动具有重要作用,然而风险投资的健康发展需要政府公共政策的干预。为此从公共政策、风险投资与创新三者之间的关系入手,从创新的需求和供给角度建立模型,分别研究了创新产品市场和风险投资市场,并运用均衡分析方法研究了整个市场的均衡状态,根据社会效用最大化目标,分析政府最优公共政策组合及其对社会福利的影响。因此,这种最优政策工具组合可供政府制定相关政策时参考。  相似文献   
2.
为研究建仓策略对配对交易年收益率影响,文章构建了折回首日WM-FTBD策略,结合GGR和Herlemont策略,在沪深港证券市场交易,运用三种检验方法,从理论和实证得出,FTBD策略成功率和年收益率都更高,同时发现深市年收益率呈离散、尖峰和正偏性,三种方法年收益率深圳最大,上海次之,香港最小且三者差异明显。结果表明,有效建仓策略可总体改进收益,但也承担更多风险,价差动量效应和均值回复效应有助于解释价差变化和收益率差异,配对交易在成熟有效市场不一定适合,但在发展中国家有着广阔的前景。  相似文献   
3.
Saudi Arabia is the largest source country of remittances to Pakistan since the 1970s. This study examined the impact of home versus host country’s economic conditions on remittances from Saudi Arabia to Pakistan. The ARDL bounds testing is used on the annual data set from 1973 to 2014. The study concluded that economic growth in the host country and economic crises in the home country increase remittances. 1% decrease in domestic output increases remittances by 2.79% while 1% increase in sending country’s output growth increases remittances by 5.2% in the long‐run. The bilateral trade has a positive while financial deepening has a negative impact on inflows. The impact of oil shock is insignificant. We suggest cautious foreign policy as remittances depend significantly on the host country’s economic condition that is not directly under the control of the home country but remittances can be sustained with bilateral trade.  相似文献   
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Population and Environment - This analysis examines whether salinity in drinking water is associated with pre-eclampsia and eclampsia (PE/E), a leading cause of maternal morbidity and mortality....  相似文献   
6.
As UK Higher Education institutions continue to accept students from ethnically diverse backgrounds, there is now an onus and an expectation for academics to provide learning environments and experiences that are inclusive, validating and affirming. The aim of this paper is to explore, through the lens of the academic tutor, the pedagogical methods employed towards the implementation of ‘cultural branching’, which we define as helping ethnically diverse students to build bridges between their pre-existing knowledge and what they are expected to learn. To investigate this in more detail, the researchers interviewed 22 academic tutors across three UK Higher Education Institutions in the North of England. The findings suggest that current curriculum structures and pedagogical approaches favour the dominant non-ethnically diverse learner. Our research proposes that additional emphasis needs to be placed on developing a practical and functional approach which embeds cultural branching via technological platforms.  相似文献   
7.
Although the organizational structures and operating procedures of state substance abuse prevention systems vary substantially across states, there is scant empirical research regarding approaches for rigorous assessment of system attributes and which attributes are most conducive to overall effectiveness. As one component of the national cross-site evaluation of the SPF State Incentive Grant Program (SPF SIG), an instrument was developed to assess state substance abuse prevention system infrastructure in order to measure infrastructure change and examine the role of state infrastructure in achieving prevention-related outcomes. In this paper we describe the development of this instrument and summarize findings from its baseline administration. As expected, states and territories were found to vary substantially with respect seven key characteristics, or domains, of state prevention infrastructure. Across the six domains that were assessed using numeric ratings, states scored highest on data systems and lowest on strategic planning. Positive intercorrelations were observed among these domains, indicating that states with high capacity on one domain generally have relatively high capacity on other domains as well. The findings also suggest that state prevention infrastructure development is linked to both funding from state government and the presence of a state interagency coordinating body with decision-making authority. The methodology and baseline findings presented will be used to inform the ongoing national cross-site evaluation of the SPF SIG and may provide useful information to guide further research on state substance abuse prevention infrastructure.  相似文献   
8.
Massive increase in crimes has coexisted with rising inflation and high unemployment for the last couple of decades especially during democratic governments in Pakistan. In this paper, we explore the relationship between crime rate, misery index and democracy in Pakistan from 1975 to 2013. Granger causality test proposed the unidirectional causality running from misery index to crime rate in Pakistan. Estimating the crime function via Pasaran’s conditional error correction model, we found the significant long run equilibrium relationship between Okun’s misery index and crime rate which implies that rising inflation and unemployment rate are the major driving forces towards increasing crime rates in Pakistan. Finally, empirical evidence from Okun’s misery index suggested that people are three times more miserable in quasi democratic periods than that of dictatorship. The Barrow’s misery index model verifies that people are twice worsening in quasi democratic periods. Likewise, reported crimes are nearly twice during quasi democracy than quasi dictatorship. The crime model provided the evidence that people during quasi democratic governments are more likely tending towards crime as compared to quasi dictatorship during the study period in Pakistan. This implicitly advocates the fact that half hearted efforts and ill structured apparatus of democracy can augment the tendency of crime and misery rather than solution of such concerns of the economy.  相似文献   
9.
This study highlights the responsiveness of import demand in the context of aggregate expenditure components in Pakistan over the period of 1974?C2009. The study uses Johansen multivariate cointegration analysis and estimates an error correction model to drive the long-run and short run elasticities of the import demand behavior. The cointegration results provide a strong empirical validity of the presence of long run elasticities between import and macro-components. In the long-run, the consumption expenditure is the main dominant determinants of the movements in import demand in Pakistan. In the short-run, the consumption and investment expenditures are the major determinants of import demand while the import demand is not sensitive to relative price. Moreover, the parameter stability tests confirm the stability of the model, and the sensitivity analysis confirms the robustness of initial results.  相似文献   
10.
In this paper, we develop a conceptual model for IT innovation adoption process in organizations. The model utilizes Diffusion of Innovation (DOI) theory, Theory of Reasoned Action (TRA), Technology Acceptance Model (TAM), Theory of Planned Behaviour (TPB) and a framework that contains characteristics of innovation, organization, environment, chief executive officer (CEO) and user acceptance. The model presents IT adoption as a sequence of stages, progressing from initiation to adoption-decision to implementation. The study presents a model with an interactive process perspective which considers organizational level analysis until acquisition of technology and individual level analysis for the user acceptance of IT.  相似文献   
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