上海股票市场动量效应研究——基于1995—2009年周收益率数据

利用1995年1月至2009年12月期间上海证券交易所所有A股股票的日收益率数据,以本周四到下周三为一个周期计算周收益率,采用重叠抽样方法,对上海股票市场的动量效应进行实证研究。结果表明:上海股票市场存在动量效应现象,但动量效应持续的期限要短于西方发达国家的股票市场;当形成期为1周、持有期为1~3周时,投资策略组合表现出显著的动量效应;当形成期大于1周、持有期超过3周时,投资策略组合开始出现收益反转现象;当持有期和形成期增大到12~26周时,投资策略组合又表现出不显著的动量效应。     

Interdependency and adjustments in the European Union

Since the euro was launched, divergences in European economies'evolutions have been more significant than generally expected. The article, based on a multinational macroeconomic model describing the interdependence between 14 European countries, examines the role played by relative‐price adjustment mechanisms and difficulties inherent in asymmetric evolutions.

The efficiency of relative‐price adjustment mechanisms seems limited and, even in the most flexible countries, the return to equilibrium is slow and still incomplete after 10 years. Differences in relative‐price adjustment mechanisms remain a source of asymmetries between member countries. Extra‐European exchanges have a stabilizing role which is uneven on account of trade openness and price elasticities. A decrease of the world demand and a depreciation of the euro, still have an important impact with significant disparities between countries.

Several lessons can be drawn in terms of economic policy. A more restrictive European fiscal policy proves more costly in the long run in Germany and the Netherlands on account of the weakness of price compensation effects. On the contrary, thanks to their greater flexibility, the United Kingdom and Sweden can offset an initial negative shock more rapidly. The wage dimension in the definition of a good European policy mix has also to be examined.     

广州市区商品住宅空置现状与成因分析

通过实地抽样调查，摸清了广州市区近3年建筑竣工的商品住宅分行政区、分地段、分类型空置状况并分析其原因。认为广州市房地产业发展取得巨大成就的同时，不要忽视商品住宅的空置问题，要切实采取有效措施，积极消化现有空置住宅，以利于广州市房地产业的可持续发展。     

企业现金流量表的比率分析

在市场经济条件下,企业的现金流量在很大程度上决定着企业的生存和发展能力。通过对现金流量的分析,人们可以清晰地了解企业的资金周转情况和短期经营风险,评价企业的财务结构和企业偿付债务的能力,判断企业适应外部环境变化对现金收支进行调节的余地及企业持续发展的可能趋势。     

人民币走向自由兑换的时机选择

汇率制度的选择是一个动态的转换过程。我国目前采用的是钉住美元的汇率制度,这一汇率制度存在着明显弊端,已不适应我国市场经济发展的需要,我国经济的发展迫切需要人民币汇率由钉住汇率转向真正的管理浮动汇率。从现在起到未来的一两年内,是人民币走向浮动,实行人民币自由兑换的最佳时机。     

Balance of payments accounting and exchange rate dynamics

The balance of payments is an accounting identity. Many wonder how the current and capital accounts, which add up to zero, can influence exchange rates. This paper shows how payment flows arising from balance of payments imbalances affect the demands for different currencies in the foreign exchange market over time. Based on a dynamical system approach, the paper demonstrates how international payments evolve depending on the joint dynamic behaviour of different balance of payments components. It finds that international payments and exchange rates interact in fundamentally different ways depending on whether a country restricts its capital inflows and outflows, whether capital flows are accommodating or autonomous and whether the exchange rate is fixed, flexible or, say, governed by a crawling peg. Empirical evidence from major industrial countries as well as from countries hit by currency crises support the paper's theoretical predictions.     

汇率与股价波动研究——基于中国与日本高频数据的ARCH检验

次贷危机发生前,汇率与股指存在ARCH效应,且均有不对称信息的冲击,波动存在持续性的影响;次贷危机发生后,汇率与股价都不存在ARCH效应,系统性风险和非系统性风险暴露出来使得汇率对股市的波动影响降低,从而促进投资者风险得到有效对坤。     

商业银行资本结构研究

资本结构对于实现商业银行的财务目标和稳健经营起着至关重要的作用.本文从一般的资本结构决定理论出发,探讨银行资本结构决定中的特殊性,最后得出的结论是:政府为银行业提供的担保会促使商业银行提高财务杠杆系数,而监管当局的最低资本充足率要求则限定了商业银行的资本结构选择空间.     

宏观经济变化对利率期限结构的影响机制研究

利率期限结构的变化受到各种宏观经济因素的影响,本文通过建立结构VAR模型,发现宏观经济冲击对不同期限利率水平产生显著影响,但不同冲击产生的影响不同;水平、倾斜和曲度3个因素可以解释90%以上的利率曲线变化,但水平因素的解释能力与成熟市场相比较弱;利用脉冲反应和方差分解,发现实际经济变化主导着利率的倾斜因素和曲度因素的变化,而货币政策是影响利率水平因素变化的主要原因,对其他因素的影响较弱,这一点与发达国家的成熟市场存在较大差别。     

Fundamentals, the exchange rate and prospects for the current and future EU enlargements: evidence from Bulgaria, Croatia, Romania and Turkey

We analyze the link between macroeconomic fundamentals and exchange rate dynamics in two new and two potential EU member states: Bulgaria, Romania, Croatia, and Turkey. Given the different institutional settings of the exchange rate market in the countries of interest, we follow two different modelling strategies. For Romania and Turkey, we evaluate possible exchange rate misalignments based on a monetary model of exchange rate determination. In the case of Bulgaria and Croatia, with currency board and narrow-band peg arrangements against the euro, we discuss possible exit strategies and quantitatively assess the effects of the peg arrangements by means of simulation.