Risk Aversion and Personality Type

The finance literature supports an increasing role for behavioral aspects of investment decision-making. Among other factors such as demographics, personality type may influence risk tolerance as well. This paper explores the relationship between personality type dimensions of the Myers-Briggs Type Indicator (MBTI) and the moments approach to individual investor risk tolerance inherent in expected utility theory (EUT). Our study uses survey results to relate ex ante EUT tolerance for variance and skew to MBTI measures. Results indicate that personality type does explain individual ex ante EUT risk tolerance. Our results further suggest that the relationship between personality type and individual ex ante EUT risk tolerance is non-linear in form.     

家庭经济脆弱性与风险规避

本文基于期望效用理论构建新的家庭经济脆弱性分析框架,研究死亡风险对我国城市家庭消费的总体影响和异质性影响,为如何规避死亡风险的决策提供证据。结果表明:我国城市居民家庭普遍存在由死亡风险导致的经济脆弱性且比较严重,家庭经济脆弱性程度在20%以上的家庭占全部样本家庭的65%以上;死亡风险导致的家庭消费波动性显著高于消费水平的下降,这意味着采用保险来规避死亡风险比储蓄更有效。尽管家庭持有的寿险保障与面临的经济脆弱性匹配性较好,但寿险持有量不充分且寿险的有效性因家庭异质性存在差异,对3人家庭和35—44岁家庭作用最有效。本文的政策含义在于,脆弱性分析框架不仅能有效度量死亡风险对居民家庭消费和福利的影响,还可以回答居民家庭应如何选择死亡风险规避方式。     

风险厌恶、方差风险溢价与不确定性冲击

在Epstein-Zin-Weil效用函数框架下,用方差风险溢价作为投资者风险厌恶程度的代理变量,并基于股票质量分类和行业分类验证了该做法的合理性。借助CoVAR的分析思想,研究了不同质量股票的不确定性冲击对风险厌恶程度的影响。结果表明:质量越好(差)的股票对风险厌恶程度的影响越大(小),说明股票质量已反映在投资者预期中。     

农户土地退出风险认知及规避能力的影响因素分析

以重庆市l 829户农户的调查数据为基础,对农户土地退出风险认知及规避能力进行分析,并运用有序Probit模型,分析了影响农户宅基地、承包地退出风险规避能力的因素及方向.结果表明:①多数农户认为土地退出风险较高,同时农户对于退出承包地较宅基地存在更大的顾虑,农户更倾向退出宅基地;另一方面,多数农户规避土地退出风险能力较弱,相比承包地,农户具有更强的宅基地退出风险规避能力.②宅基地风险规避能力来看,户主年龄、家庭有无稳定城镇住所、本村是否在进行农民新村建设、退地后能否享受高水平城镇社保对农户宅基地退出风险规避存在显著正向影响;家庭有无养殖经营对退出风险规避存在显著负向影响.③承包地风险规避能力来看,户主年龄、户主是否购买商业保险、家庭有无稳定非农收入、退地后能否及时获得就业培训与援助、退地后能否享受高水平城镇社保对农户承包地退出风险规避存在显著正向影响;家庭有无养殖经营对农户承包地退出风险规避存在显著负向影响.④影响农户宅基地退出风险规避能力的因素少于影响农户承包地退出风险规避能力的因素,同一因素也可能对农户宅基地、承包地退出风险规避能力产生不同的影响.     

Risk Aversion, Wealth and International Capital Flows

This paper models capital flows in a rich–poor, two-country, two-asset, dual-risk economy with decreasing absolute risk aversion. The first risk is asset-specific. The second is political and dependent; i.e., related to particular asset outcomes. In this framework, the role of wealth in determining asset preferences is demonstrated, and the conditions for diversification are derived. The wealth effect and diversification conditions are applied to explain ongoing two-way capital flows in general as well as the apparent paradox of domestic capital flight with simultaneous inflows of foreign capital.     

Risk Aversion, Intergenerational Equity and Climate Change

The paper investigates a climate-economy model with an iso-elastic welfare function in which one parameter measures relative risk-aversion and a distinct parameter measures resistance to intertemporal substitution.We show both theoretically and numerically that climate policy responds differently to variations in the two parameters. In particular, we show that higher but lower leads to increase emissions control. We also argue that climate-economy models based on intertemporal expected utility maximization, i.e. models where = , may misinterpret the sensitivity of the climate policy to risk-aversion.     

Risk Aversion and Sorting into Public Sector Employment

Abstract. This research note uses two German datasets – the large‐scale German Socioeconomic Panel and unique data from own student questionnaires – to analyse the relationship between risk aversion and the choice for public sector employment. Main results are (1) more risk‐averse individuals sort into public sector employment, (2) the impact of career‐specific and unemployment risk attitudes is larger than the impact of general risk attitudes and (3) risk taking is rewarded with higher wages in the private but not in the public sector.     

Risk Aversion and the Full Costs of Rent-Seeking*

Risk aversion is frequently postulated as one of the factors that lead to under-dissipation of rents. However, the formal analyses which have supported this contention and suggested that the effects can be large have focused solely on the expenditures of contestants, ignoring the associated costs of risk. The paper argues that this omission is wrong in principle, and that when corrected the presence of risk aversion in fact leads to substantial increases in the extent of rent dissipation, although an exception is when there is a very strong combination of risk aversion and asymmetry.     

人口结构与金融市场风险结构:风险厌恶的生命周期时变特征

金融市场中要更多考虑参与主体"人"的因素。经典理论模型通常设定风险厌恶系数为不随年龄而变的常数。本文构建模型并运用微观和宏观数据,刻画和验证经济主体风险厌恶在生命周期中的时变特征。微观视角下风险厌恶受年龄正向影响,宏观视角下金融市场和行为风险厌恶均随平均年龄上升而上升。少年人口占比负向影响风险厌恶;中、老年人口降低风险偏好,风险态度趋于保守。风险厌恶在生命周期内存在时变性,表现为年龄越大风险厌恶越强,可谓"江湖越老,胆子越小"。这对于后续建模中设定风险厌恶可变系数有借鉴意义。年龄改变风险态度和风险资产组合,使得人口年龄结构系统性影响金融市场风险结构。因此,本文对于从人口学视角预判未来金融市场风险结构也具有一定参考价值。     

Heterogeneity of First-order Risk Aversion and the Equity Premium

I show that stockholders and non-stockholders can coexist in equilibrium even if securities markets are perfect and complete. This is due to a heterogeneous safety inclination, which is defined as heterogeneity in first-order risk aversion (Segal and Spivak, 1990). A static two-security market model is analysed by the mean–standard deviation approach, where safety inclination is described by the degree of the marginal rate of substitution between the mean and the standard deviation at a certain point. In equilibrium, aggregate shocks may be concentrated on stockholders, which may lead to a high equity premium.
JEL Classification Numbers: D81, E44.     

油气勘探开发技术研发风险评价与规避

运用期权观点分析油气勘探开发技术研发风险,依据风险来源分类即技术风险、生产风险、市场风险、管理风险、财务风险与环境风险构建油气勘探开发技术研发风险评价指标体系,确定各二级风险指标的评价值,并进行规范化处理,利用前馈神经网络预测勘探开发技术研发的风险。最后结合石油企业技术研发特点提出风险回避、风险转移、风险弱化、风险控制和风险监控系统化风险规避机制。     

Risk Aversion and International Markets: Does Asset Trade Smooth Real Income?*

In a two-country model, complete asset markets do not guarantee that individuals will choose to eliminate all (diverifiable) risk in aggregate consumption. the presence of nontraded goods forces individuals to choose between reducing uncertainty in aggregate consumption and in the composition between traded and nontraded goods. This choice depends on a comparison of the standard coefficient of relative risk aversion with a second type of risk aversion that becomes relevant when nontraded goods are present, one that captures aversion to risk in composition. Regardless of the decision made, asset trade always reduces the risk premium.     

动态风险厌恶、随机贴现因子与资产定价

本文在Campbell and Cochrane(1998)和Brandt and Wang(2001)的研究基础之上利用随机贴现因子对包含习惯的效用函数中的风险厌恶进行了动态一般化分析，并探讨了动态风险厌恶、随机贴现因子、资产定价以及消费增长等因素之间的一般化关系。这种一般化关系有助于解释“股权溢价之谜”(Equity Premium Puzzle)等不合理现象的存在。     

Global Warming and a Potential Tipping Point in the Atlantic Thermohaline Circulation: The Role of Risk Aversion

The risk of catastrophes is one of the greatest threats of climate change. Yet, conventional assumptions shared by many integrated assessment models such as DICE lead to the counterintuitive result that higher concern about climate change risks does not lead to stronger near-term abatement efforts. This paper examines whether this result still holds in a refined DICE model that employs the Epstein–Zin utility specification and that is fully coupled with a dynamic tipping point model describing the evolution of the Atlantic thermohaline circulation (THC). Risk is captured by the possibility of a future collapse of the circulation and it is nourished by fat-tailed uncertainty about climate sensitivity. This uncertainty is assumed to resolve in the middle of the second half of this century and the near-term abatement efforts, which are undertaken before that point of time, can be adjusted afterwards. These modelling choices allow posing the question of whether aversion to this specific tipping point risk has a significant effect on near-term policy efforts. The simulations, however, provide evidence that it has little effect. For the more likely climate sensitivity values, a collapse of the circulation would occur in the more distant future. In this case, acting after learning can prevent the catastrophe, implying the remarkable insensitivity of the near-term policy to risk aversion. For the rather unlikely and high climate sensitivity values, the expected damage costs are not great enough to justify taking very costly measures to safeguard the THC. Our simulations also provide some indication that risk aversion might have some effect on near-term policy, if inertia limiting the speed of decarbonisation is accounted for. As it is highly uncertain how restrictive this kind of inertia will be, future research might investigate the effects of risk aversion if additional uncertainty about inertia is considered.     

风险厌恶与国有寡占市场的资源配置效率——以我国成品油市场为例

作为传统寡占理论与我国国情相结合的产物,国有寡占市场受到越来越多的关注。本文以风险厌恶倾向为切入点,从缺少职业经理人市场、优越的生存环境和目标多重性三方面分析了国有寡占企业风险厌恶倾向的成因,并构建理论模型分析这种风险厌恶倾向对国有寡占市场资源配置效率的影响。结果表明,风险厌恶倾向使国有寡占企业面对成本风险时,价格和产量相对利润最大化值分别升高和降低,面对需求风险时,价格和产量同时低于利润最大化值,两种情况都使国有寡占市场资源配置效率降低,而固定成本的升高会进一步加大资源配置效率的损失。本文最后以我国石化行业成品油市场为案例,验证理论模型的结论,并提出了政策建议。