国际货币体系存在的问题及改革

尽管目前全球金融危机仍在肆虐,但金融全球化的进程并未停止。在二者的合力下,现行的国际货币体系的固有弊端日益暴露,越来越不能适应当前世界经济体系的顺利运行。改革现行的国际货币体系,探索新的国际货币体系就成为亟待解决的问题。文章在分析国际货币体系存在问题的基础上,就成立新的世界中央银行或改革IMF,完善汇率体系,平稳汇率大幅波动,创造新的国际储备货币等方面对改革现行的国际货币体系提出了一些思路。     

多层级视角下京津冀科技创新政策府际关系研究

府际关系协调有利于实现创新资源、要素的有效汇聚与整合,进而提升政策有效性。以京津冀为例,构建中央-地方多层级府际关系模型,分析中央政策主体合作网络特征与政策扩散特征、地方政策主体合作网络特征与政策执行特征的相关性。研究发现,中央政府部门间形成了以科技部为核心的核心—边缘网络结构特征;北京市政府部门间呈现出以中关村科技管理委员会为核心的核心-边缘网络结构特征;天津市政府部门间呈现出以天津市科学技术委员会为核心的星型网络结构特征;河北省则没有形成稳定的网络关系。中央政策主体合作网络中的度中心性与政策扩散广度具有相关性;地方政策主体合作网络中介中心性、度中心性与政策执行强度具有相关性。     

Quantitative properties of sovereign default models: Solution methods matter

We study the sovereign default model that has been used to account for the cyclical behavior of interest rates in emerging market economies. This model is often solved using the discrete state space technique with evenly spaced grid points. We show that this method necessitates a large number of grid points to avoid generating spurious interest rate movements. This makes the discrete state technique significantly more inefficient than using Chebyshev polynomials or cubic spline interpolation to approximate the value functions. We show that the inefficiency of the discrete state space technique is more severe for parameterizations that feature a high sensitivity of the bond price to the borrowing level for the borrowing levels that are observed more frequently in the simulations. In addition, we find that the efficiency of the discrete state space technique can be greatly improved by (i) finding the equilibrium as the limit of the equilibrium of the finite-horizon version of the model, instead of iterating separately on the value and bond price functions and (ii) concentrating grid points in asset levels at which the bond price is more sensitive to the borrowing level and in levels that are observed more often in the model simulations. Our analysis is also relevant for the study of other credit markets.     

Why is free education so popular? A political economy explanation

This paper analyzes the political support for different funding regimes of education in a one‐person, one‐vote democracy. We focus the analysis on four systems that have had a preponderant presence in the political debate on education: a private system, a public system that delivers the same resources to each student (universal‐free education), a public system that intends to equalize results, and a public system that aims to maximize the output of the economy. We show that a system of universal free education is the Condorcet winner. The level of income inequality and the degree to which income distribution is skewed to the right are key factors behind this conclusion. We also show that the voting outcome of public versus private funding for education depends crucially on the type of public funding under consideration.     

中国海岛旅游研究现状及发展趋势

海岛是世界的旅游热点,改革开放30年来,中国的海岛旅游得到了长足的发展,海岛旅游研究也取得了一定的成果。但无论海岛旅游还是海岛旅游研究,与中国海洋大国的地位还远不相称。文章在对近30年来国内有关海岛旅游文献进行分析的基础上,从海岛旅游资源开发与可持续发展、环境与安全、旅游产品等方面对中国海岛旅游研究现状进行了论述,分析了海岛旅游研究中的常用研究方法,并对研究中存在的问题和研究趋势作了探讨,以期为今后的海岛旅游研究提供思路,促进中国海岛旅游研究的进一步发展。     

科技创新人才区域性需求趋势研究

科技创新人才是结构转型和经济社会高质量发展的重要支撑力量。运用灰色系统GM（1,1）模型,对四川、陕西、上海三省市2017-2021年科技创新人才进行需求预测和比较分析。R语言求解结果表明,三地及高技术产业对科技创新人才的需求数量均呈稳步增长态势,但增速存在区域性差异,新的科技创新人才发展区域性非均衡态势将逐渐形成,区域性人才竞争将进一步加剧。加大科技创新人才培育力度,合理规范人才竞争应成为国家层面的人才政策;加快产业转型升级、优化人才生态环境、提高人才与产业匹配度既是优化人才资源配置效率的关键,也是区域性人才管理工作的重点。     

Impact of state-dependent oil price on US stock returns using local projections

In this paper, we investigate the impact of oil prices on both aggregate and industry US real stock returns over the period 1973–2017. The empirical analysis contributes to the related literature introducing a state-dependent oil price (high and low) and the local projections approach. Our main finding is that, depending on the nature of the shock and industry, the negative effects of oil price shocks become exacerbated -and the positive effects get moderated- if oil prices are already high.     

The Canadian productivity stagnation, 2002–2014

Total factor productivity (TFP) growth in Canada between 2002 and 2014 has been only 0.16% per year. This figure is substantially smaller than that of the United States, or that of Canada in the past. We perform multiple counterfactual exercises to show that this small TFP growth cannot be accounted for by several compositional effects or mismeasurements of factors of production. We identify two key sectors (mostly Mining and to a lesser extent Manufacturing) that drive all of the TFP growth difference with the United States. Despite the lack of TFP growth, Canada has experienced sustained income growth due to a prolonged period of appreciation of the terms of trade (while US terms of trade have deteriorated), making real income in the two countries grow at similar rates.     

Determinants of bank’s interest margin in the aftermath of the crisis: the effect of interest rates and the yield curve slope

Empirical Economics - This paper analyses the determinants of net interest margin, focusing on the impact of interest rates and the slope of the yield curve, using a broad panel of data from 32...     

Building internal business scenarios based on real data from a performance measurement system

This paper presents a new methodology to build internal business scenarios from the data gathered by some key performance indicators (KPIs) defined within a performance measurement system. The application of the principal components analysis technique leads to the identification of latent relationships between KPIs that underlies some important business aspects. Further, this methodology allows to represent not only the temporal evolution of the organisation as a function of these business aspects but also the definition and determination of internal business scenarios, being therefore the source of meaningful managerial information. At the end of the paper, results of a practical application are presented and discussed, as well as their importance for the organisation from a decision making point of view.