中国股票市场非线性特征检验分析

本文突破了传统资本市场理论研究的线性框架,视股票市场为一非线性系统,运用R/S、BDS等非线性方法对沪深股票市场进行实证研究,得出了沪深两市的非线性特征,并探讨了这些实证结果对股票市场研究的理论与实践意义。     

Contrarian Investment in the Dutch Stock Market

The efficient markets hypothesis states that at any times security prices fully reflect all available information. Contrarian investment strategies do not recognize the efficiency of capital markets. They call for buying undervalued stocks, i.e. stocks with a low price relative to their fundamentals. The idea behind such a strategy is to take advantage of the extrapolation behaviour of naive investors. Using a fresh and extensive data set from the Dutch stock market, we found that these strategies yield an outperformance without a higher risk. Our results make it hard to maintain the efficient market hypothesis.     

North–South terms‐of‐trade trends from 1960 to 2006

The composition of exports of developing countries is increasingly dominated by manufactured goods. This has not changed the fact that their major trading partners continue to be the developed countries. In order to properly assess the distribution of gains from trade, there is a pressing need to analyze the movements in the terms of trade of developing countries with respect to the developed ones. A statistical analysis of the North–South terms of trade reveals that the terms of trade have turned against the South since the 1960s. However, the terms‐of‐trade deterioration is neither continuous nor evenly distributed over different country groupings. The existence of a structural break in the mid‐to‐late 1970s together with the greatest adverse terms‐of‐trade movements against the highly indebted and least developed countries attest the discontinuity and unevenness of this process.     

松嫩平原北部黑土区水土资源平衡效应研究

研究目的:分析松嫩平原北部黑土区在土地利用和农业气候资源变化条件下的水土资源平衡效应。研究方法:在傅抱璞假设理论的基础上,通过拟合参数ω回归方程求得实际蒸散量,以此来构建水分盈亏模型,分析水土资源平衡效应。研究结果:(1)1985—2015年,松嫩平原北部土地利用表现为湿地面积大幅度减少,水田和旱地面积不断增加;潜在蒸散量和气温具有较为明显的变化趋势,气温以0.27℃/10 a上升,潜在蒸散量以5.15 mm/a下降;(2)经过拟合参数ω方程求得实际蒸散量可以有效反映土地利用状况、地貌特征和土壤属性;(3)1985—2015年间总体的水分亏缺率均值是0.25、0.2、0.31和0.13,而土地利用的影响使严重缺水面积逐年增加,其增加量是总面积的1.59%,约是原有面积的2倍。研究结论:基于傅抱璞理论改进的参数ω能够提高地区实际蒸散量的估算精度,对区域水土平衡评价具有重要意义,为实现区域资源合理利用提供指导。     

财产税效率的作用机制考察

仅仅依靠公众从辖区中退出提升财产税效率只有理论上的意义。呼吁是另一种提升效率的手段,它的作用机制需要两个条件:退出的可置信威胁,以及对组织管理者漠视呼吁的行为有一定政治成本。在退出之路可行性不大时,降低呼吁成本,使得下情上达的成本减小,同时增加地方政府官员漠视呼吁的政治成本,把处理公众呼吁的行为方式同地方政府官员的政治前途结合起来,这样才能够使财产税得到现实效率。     

我国区域金融成长差异的态势:1978-2003年

根据1978-2003年的有效数据,对我国的金融成长差异进行实证分析和计量检验的研究结果表明,这期间并不存在区域金融成长差异的倒U形曲线,而是呈现三次曲线的变动态势,从更长时期看,倒U形曲线是否成立还未有定论,需要多方面指标的比较和未来时间的检验,但是区域金融成长的非均衡是长期存在的,这个结论同时也得到了演化经济理论的有力支撑,因此我国区域金融成长不能过度强调趋同,应该适度差距、系统优化、协调发展。     

宽松的环境政策能吸引更多的外商直接投资吗——基于中国工业省级面板数据的分析

利用我国1997~2009年的工业省级面板数据和动态面板GMM估计方法,考察了相对宽松的环境政策是否是吸引FDI的主要原因。研究发现,环境政策较宽松的地区能够吸引更多的外资流入,但这种影响并不大,所以,以降低环境标准、牺牲环境为代价来吸引FDI不是明智之举;与东、中部地区相比,西部在吸引FDI上处于明显劣势,这在一定程度上加剧了我国经济结构的失衡。     

经济增长能带来共同富裕么——基于香港地区收入分配状况的研究

库兹涅茨倒U假说揭示的工业化国家(地区)收入分配差距"先上升,后下降"的倒U型运动轨迹在很多国家(地区)的发展经验中都无法得到验证,包括香港。作为亚洲四小龙之一,香港经济已保持了近半个世纪的持续快速增长,然而我国香港地区的收入分配状况不仅没有随着经济增长而获得改善,反而是不断恶化。造成香港社会贫富悬殊的原因有很多,主要包括缺少全面的社会保障体系,为追求经济增长实行不利于中低层群体的人才引进制度、工资制度和税收制度,市民教育程度底下,政治民主发育不足,特殊的产业结构以及经济过度的自由化等等。香港经验给我们带来的启示是不能片面追求经济增长,全民的共同富裕不会伴随着经济增长自动到来,改善收入分配状况,涉及到对各种国家政策、经济制度和政治制度全面改革。     

An empirical test of the Balassa-Samuelson hypothesis: Evidence from eight middle-income countries in Africa

The paper tests the validity of the Balassa-Samuelson hypothesis (BSH) using the within-effects and the dynamic panel generalised methods of moment (GMM) techniques for a panel of eight middle-income African countries over the period 1960–2009. We selected these countries because they exhibited a mixture of relative productivity growth and real exchange rate misalignment that fits the characterization of the BSH well. The results strongly support the BSH for this group of countries. The results are valid even after we controlled for potentially omitted variables and endogeneity. The implication is that as these countries become more productive, their currencies appreciate in real terms.     

Advertising, Its Determinants, and Market Structure

This study derives a formal model of firm advertising behavior and applies it to the industry level to figure out the relationship between advertising and market structure. The firm advertising model shows that both consumer preference andfirm-specific advertising competence jointly determineprofit-maximizing advertising intensity. At the industry level, advertising intensity is represented multiplicatively by consumer preference and a measure of market structure, which reflects the joint distribution of the levels of advertising competence and market shares among firms. The new market structure measure suggests that those single-dimensional measures of market structure such as seller concentration and the Herfindahl index are inadequate in explaining interindustry differences in advertising intensity, and that the long-debated advertising-concentration relationship differs depending primarily on the appropriability of advertising. An empirical analysis of 426 five-digit Korean manufacturing industries shows that an inverted U-shaped relationship between the Herfindahl index and industry advertising intensity is observed for consumer goods industries but a lazy J-shaped relationship for producer goods industries.