融资性担保机构业务发展的因素制约及经营风险分析

近年来,融资性担保机构的发展在一定程度上缓解了中小微企业“融资难”、“融资贵”的现状,助推了中小微企业的发展壮大,但在其业务经营过程中存在的诸多问题以及风险隐患也逐渐暴露了出来。本文以通化辖区担保公司为样本,分析了融资性担保机构经营过程中存在的问题和风险隐患,并提出促进其可持续发展的政策建议。     

金融市场参与、风险异质性与家庭幸福

本文研究了金融市场参与对家庭幸福的影响。理论分析显示,金融市场参与通过风险和收益对家庭幸福产生影响。本文运用2015年中国家庭金融调查数据,实证研究了金融市场参与对家庭幸福的影响。为克服内生性,本文选取工具变量,运用极大似然估计发现,家庭参与金融市场会显著提高家庭幸福的可能性。从投资风险的角度进一步研究发现,金融投资的风险异质性对家庭幸福有显著影响:家庭参与低风险金融投资会显著提高家庭幸福,参与高风险金融投资会显著降低家庭幸福。从民间借贷参与中,本文发现家庭参与民间借出款会显著提高家庭幸福的可能性。民间借贷投资风险对家庭幸福的异质性影响也是存在的,高风险借出款对家庭幸福有显著的负向影响。本文为理解家庭金融投资行为与幸福的关系提供了新的证据,可为构建和谐社会提供有益参考。     

Risk parity portfolio optimization under a Markov regime-switching framework

We formulate and solve a risk parity optimization problem under a Markov regime-switching framework to improve parameter estimation and to systematically mitigate the sensitivity of optimal portfolios to estimation error. A regime-switching factor model of returns is introduced to account for the abrupt changes in the behaviour of economic time series associated with financial cycles. This model incorporates market dynamics in an effort to improve parameter estimation. We proceed to use this model for risk parity optimization and also consider the construction of a robust version of the risk parity optimization by introducing uncertainty structures to the estimated market parameters. We test our model by constructing a regime-switching risk parity portfolio based on the Fama–French three-factor model. The out-of-sample computational results show that a regime-switching risk parity portfolio can consistently outperform its nominal counterpart, maintaining a similar ex post level of risk while delivering higher-than-nominal returns over a long-term investment horizon. Moreover, we present a dynamic portfolio rebalancing policy that further magnifies the benefits of a regime-switching portfolio.     

机关事业单位养老保险制度改革的收入再分配效应

论文采用精算方法,选择终身净转移额和内部收益率两大指标,从全国和地区两个层面,定量分析了机关事业单位养老保险制度改革的代内再分配效应和代际再分配效应。研究结果表明:养老保险制度改革对城镇职工、其他制度模式下的参保群体、不同地区、代与代之间的收入再分配效应,主要取决于工资增长率和利率的动态组合,新制度既可以发挥正向的代内再分配效应和代际再分配效应,也可能会引起代内不公平和代际不公平,而且再分配效应会随缴费年限增加而增强。     

Is Portugal’s forest transition going up in smoke?

The turnarounds from decrease to expansion in forest areas that took place during the last century have been examined through the lens of forest transition theory (FTT). Among temperate and Mediterranean European countries that have seen an expansion of forest cover, Portugal stands out as the only case in which this trend has recently been reverted. In this study, we explicitly map and document the forest transition (FT) in the country over the period 1907–2006, and investigate when and where forest transition happened de facto, and which were the land use transition pathways that resulted from the shrublands, agriculture, and forest interplay dynamics. After thematic and geometric harmonization of land cover maps from 1907, 1955, 1970, 1990, and 2006, a cluster analysis established four typologies, and a transition matrix was constructed to assess land cover dynamics. We found that up to 1955, FT occurred simultaneously with agricultural expansion, as shrubland areas diminished. Afterwards, with the retraction of agricultural area and the consequential decoupling of forest management from local actors, FT gained momentum and expanded up to the 1990s. While during the first half of the 20th century, forest expansion followed the “Scarcity” and “State Policy” pathways fostered by local socio-ecological feedback loops, throughout the second half of the century forest transition was driven by exogenous socio-economic forces, following “Economic Development” and “Globalization” pathways. We show how, despite these forces, FT can be derailed by endogenous factors such as wildfires, which limited and in some areas even reverted the afforestation process, initiating a deforestation phase. Since the necessary conditions for FT (technology shift, urbanization, agriculture retraction and public afforestation programs) were available in mainland Portugal, we advance the hypothesis that critical wildfire risk governance deficits may have been responsible for arresting FT. Considering the critical role of forests and other wooded areas in supporting climate change mitigation and sustainable development, our work provides useful evidence and insights for public decision makers on previously unaddressed dimensions of FTT.     

民间金融的实践、风险与规范化发展——“互联网背景下民间金融风险与规范化发展”会议综述

民间金融是把双刃剑,对其合理引导可促进国民经济发展,但如果用之不当,也会扰乱经济金融秩序,甚至引发地区性的社会不稳定。民间金融与互联网技术的融合,使得民间金融活动更加频繁、参与主体更为复杂、波及面更为广泛,而且往往游离于银监会和央行监管之外,加大了民间金融规范发展的难度。但互联网技术与民间金融的融合也是推动金融改革,促使民间金融走向规范化、阳光化的一大动力。因此,未来应适当降低民间金融准入门槛,通过财政税收等调节手段,引导民间资本流向实体经济、风险投资等领域。同时,应加快立法、普法进程,提升民众的金融知识和风险意识,明确监管责任边界。     

The hidden risk in user-generated content: An investigation of ski tourers' revealed risk-taking behavior on an online outdoor sports platform

This paper investigates risk-taking behavior in the context of an online outdoor sports platform. Analyzing a unique behavioral dataset of 6242 ski tours completed over a time period of eight winter seasons, this paper shows that the accuracy of user-generated content on ski tours is limited and that more than one third of ski tours accessible on the respective online platform was relatively dangerous on the particular days according to a common avalanche risk assessment method. The quantitative analysis furthermore reveals that at avalanche danger level “considerable” more than sixty percent of ski tours were relatively dangerous. Overall, this paper provides novel insights into risks that come with user-generated content in the adventure tourism and adventure recreation domain and derives important implications for online platform users, online platform providers, public institutions, and tourism destinations.     

财务指标评价银行信贷风险的实例运用

纵观古今,对于全球银行业来说,信贷风险管理的好坏决定了银行的生死存亡。近年来,随着我国银行业体制改革深入,各家银行信贷业务发展迅速,但是我国银行业信贷风险管理观念薄弱,管理水平仍较低,信贷业务快速发展和风险管理相对滞后的矛盾日益凸显,国内关于银行信贷风险管理手段和技术的研究也比较落后,本文将着重从财务报表分析角度探讨财务指标在信贷风险评价中的运用,探讨财务指标在信贷风险评价中的有效性。     

General equilibrium pricing of options with habit formation and event risks

This paper proposes a general equilibrium model that explains the pricing of the S&P 500 index options. The central ingredients are a peso component in the consumption growth rate and the time-varying risk aversion induced by habit formation which amplifies consumption shocks. The amplifying effect generates the excess volatility and a large jump-risk premium which combine to produce a pronounced volatility smirk for index options. The time-varying volatility and jump-risk premiums explain the observed state-dependent smirk patterns. Besides volatility smirks, the model has a variety of other implications which are broadly consistent with the aggregate stock and option market data.