流动性与资产定价:基于我国股市资产换手率与预期收益的实证研究

流动性与资产定价是目前金融研究的热点之一 (O’Hara,2 0 0 3 )。本文通过检验交易频率零假设和交易成本备择假设 ,深入分析我国股市流动性与资产定价的理论与经验关系 ,发现 :我国股市存在显著的流动性溢价 ,换手率低、交易成本高且流动性小的资产具有较高的预期收益 ;产生流动性溢价的原因是交易成本而不是交易频率 ;与国外股市相似 ,小企业收益率高于大企业 ,价值股收益率高于成长股。因此 ,我国股市并非令人无法捉摸 ,流动性、规模和价值效应都是资产定价的因素     

商业银行贸易融资业务的新发展——供应链融资

随着市场竞争的加剧以及产业经济的发展,“大而全”的企业体系正在崩溃,企业与企业间的竞争已逐步转向了供应链与供应链之间的竞争。在“产-供-销”供应链上的参与不同业务的企业为降低融资成本,增加销售量,提高在国际市场上的竞争能力,对供应链金融的需求也越来越迫切,我国商业银行应审时度势,加快供应链金融的业务的创新发展,构建银行、企业和商品供应链互利共存、持续发展的产业生态。     

流动性、生命周期与投资组合相异性——中国投资者行为调查实证分析

本文采用Probit和Tobit模型对中国居民的股票市场参与和投资组合的影响因素进行了分析,主要有以下的实证发现:首先,不流动性资产特别是房地产的投资显著影响了投资者的股票市场参与和投资组合,而且影响以“替代”效应或者说“挤出”效应为主。其次,投资者在进行投资组合时极少利用股票市场对其未来现金流所承担的风险进行对冲,也就是说,中国居民投资的“生命周期效应”不明显;第三,中国居民投资的“财富效应”非常显著。财富的增加既增加了居民参与股票市场的概率,也增加了居民参与股票市场的深度。     

社会保障财政风险与危机管理战略

我国正处于各种风险的频发期,给社会保障带来的影响不断加深,政府社会保障管理的难度也在不断扩大。在社会保障的常规性管理中贯穿风险意识、忧患意识、可持续发展意识,建立社会保障财政危机管理的核心价值观,是引领社会保障管理走向理性化、科学化的必要之路。以中国国情作为研究背景,探讨应对各种社会经济风险、自然灾害下的社会保障功能与政府职能问题,也从长期发展考虑,研究社会保障的战略发展模式,促使社会保障事业健康地发展。     

Optimal savings with taxable and tax-deferred accounts

We solve and estimate a life-cycle model with earnings risk and liquidity constraints in the presence of tax-deferred retirement accounts (TDAs). We explicitly consider two very different types of households (with TDAs): direct and indirect stockholders. The latter hold stocks only through TDAs and, consistent with the data, save considerably less than the former, who hold stocks both inside and outside these accounts. We find that TDAs promote higher wealth accumulation but only marginally higher net savings. Consumption increases mostly during retirement, as desired, but the effect is largest for those households with higher savings rates already.     

Integrating future-oriented technology analysis and risk assessment methodologies

This paper examines the potential of integrating future-oriented technology analysis (FTA) with risk assessment methodologies and tools, with the aim of developing more proactive risk assessments and also systematically including risk assessment in future-oriented technology analysis. The similarities and development challenges of foresight, Technology Analysis (TA) and risk assessment methodologies are discussed in the light of the empirical material gathered from projects performed at VTT. Among the projects are IRRIIS project focusing on risk assessment of critical infrastructures, INNORISK project aiming at managing opportunities, risk and uncertainties in new business creation and a project related to the climate change (CES). The case projects are positioned according to their important design dimensions (informative vs. instrumental outcomes; consensual vs. diverse future perspectives, extensive vs. exclusive stakeholder involvement, and autonomous vs. fixed management). The common and complementary features of FTA and risk assessment are discussed, suggesting new ways to evolve the modular design when integrating FTA and risk assessment methodologies and tools.     

Natural resource rents and internal conflicts: Can decentralization lift the curse?

We study how natural resource rents affect the risk of internal conflict within countries and how the federal structure of countries influences this relationship. Natural resource abundance may induce excessive rent-seeking and thus increase the risk of internal conflict. Fiscal and political decentralization as an institutional arrangement for rent-sharing and political codetermination of regions within a country may limit the destructive effect of natural resource rents on internal stability. Using cross-country and panel data from more than 90 countries covering the period 1984–2004, we find evidence that natural resource rents indeed increase the risk of internal conflict, but this relationship is significantly mitigated by political decentralization.     

高新技术企业R&D联盟风险评价指标体系研究

R&D联盟是高新技术企业参与市场竞争和获得技术优势的有效路径和重要模式,但也具有较高的风险。针对R&D联盟可控的风险因素进行了分析,构建了高新技术企业R&D联盟风险评价指标体系,并给出了指标采集及应用方法。     

竞争性战略联盟中合作绩效的影响因素分析

提出了风险、信任、合作模式和联盟绩效之间的概念模型,采用方差分析的方法,对概念模型包含的各种假设做实证分析。研究结果表明:我国的竞争对手之间的合作是非理性的,信任不是建立在合作绩效的基础上,合作中往往不考虑风险对绩效的影响,只重视股权合作的方式。     

There is no smoke without a fire: The effect of government interventions in less advanced economies

The lack of liquidity in the interbank market during the crisis of 2007–2011 led governments to impose different policies to rescue their countries’ banking sectors. While in advanced countries interventions in the banking sector were mostly related to a lack of liquidity and significant asymmetric information regarding counterparty risk, in many less advanced countries they had a precautionary motive. In our article, we investigate the effectiveness of policy interventions on healthy banking markets, with possible negative spill-over effects from other countries. To this extent, we use an event study methodology to test the effect of liquidity and financial sector policy announcements on interbank spread changes in six Central and Eastern European (CEE) countries over the period between 2007 and 2011. We find that standard liquidity interventions did not provide effective stabilization. In fact, our evidence suggests that the spread widened after their announcement, probably as a result of the negative signal and consequently increased risk aversion of banks. In such situations, regulators should consider policy instruments that aim to decrease uncertainty in the market.