论主权财富基金的理论逻辑

主权财富基金是国际金融市场一类崭新的有影响力的机构投资者。全球的主权财富基金的现有规模大概在3万亿美元左右。其规模还将继续不断增长。从主权财富基金兴起的原因看,首先,国际货币体系的变革是主权财富基金兴起的根本原因;其次,能源价格上涨是导致主权财富基金规模扩张的重要原因;最后,经济全球化为主权财富基金的运作提供了良好的环境。根据国家经济人模型,国家在经济发展的初期和高增长阶段,外汇储备迅速增加,国家逐步将盈余财富用于投资。然而,随着生产要素的消耗,国家积累的财富逐步达到顶峰。当国家经济进入富裕导向阶段或稳定低增长阶段时,国家需要消费积累的财富,投资也倾向于无风险资产。目前看,各国设立主权财富基金主要有五方面目标:(1)跨期平滑国家收入;(2)协助中央银行分流外汇储备;(3)跨代平滑国家财富;(4)预防国家社会经济危机;(5)支持国家发展战略。     

Wealth differentiation in household use and trade in non-timber forest products in South Africa

Findings from southern Africa and internationally indicate the local use and trade of NTFPs to be significant however most present a composite picture, failing to account for intra-community socio-economic differences. These differences may have implications for policy and practice related to poverty alleviation and sustainable use. This paper reports on a study in South Africa which explored the relationship between household wealth and the use, procurement and sale of NTFPs in two villages. There was no influence of wealth on the proportion of households using or purchasing most of the NTFPs, or the number used. However, wealthier households bought significantly more resources per household, and poor households (at one village) sold significantly more. These results are discussed within the context of local conditions and poverty alleviation debates.     

政治关联、制度环境与家族企业创新绩效

基于社会情感财富理论,以2012-2015年中国A股上市家族企业为研究样本,从研发投入与研发产出两个方面实证检验政治关联对家族企业创新绩效的影响,以及制度环境对该影响关系的调节作用。实证结果表明,无论是从研发投入还是研发产出看,政治关联都与家族企业创新绩效显著负相关,而好的制度环境则会削弱政治关联对家族企业创新绩效的抑制作用。家族企业应该权衡社会情感财富损益及政治关联得失而避免企业战略短期导向,政府则应为家族企业创新及其绩效提升营造良好的金融、法制、经营等制度环境,减少政治寻租空间。     

信贷增长如何影响中国的收入和财富不平等

本文基于中国家庭追踪调查(CFPS)数据考察了信贷增长对中国家庭收入和财富不平等的影响。整体而言,信贷增长可以缩小家庭收入不平等,主要作用机制是信贷增长通过提高中低收入群体的劳动收入和单位时薪以缩小劳动收入不平等。同时,文献中所发现的信贷增长可能恶化收入不平等的机制——扩大家庭间非货币金融资产差距,在我国表现并不明显,原因在于中国家庭的非货币金融资产比例较低,这一点对于高收入家庭也不例外,且大部分家庭难以从金融资产交易中获利。信贷增长带来了各个收入组的房屋价值上涨,但高收入家庭房产价值上涨的幅度高于中低收入家庭,因此房价上涨扩大了不同收入家庭所持有的房产价值差异。考虑到家庭调查数据往往对高收入家庭的收入和财产覆盖不完整,上述结论可能低估了信贷增长对极少数高收入家庭收入和资产的影响。本文有助于更好地理解我国信贷增长对收入分配问题的影响,为相关政策制定提供了一定启示。     

Wealth inequality,governance and economic growth

Links between economic growth and inequality are of growing interest for researchers and policy makers. Previous studies of this relationship have focused mainly on inequalities in income rather than in wealth. Yet from many perspectives wealth inequality is arguably more important. Using a new panel data set from Credit Suisse for 45 sample countries over the period 2000–2012, this study investigates the effects of wealth inequality on economic growth. Empirical results from system GMM estimation suggest that the wealth inequality is negatively associated with cross-country economic growth. This result is robust to alternative estimators and measures of wealth inequality, as well as the econometric specification. Further empirical investigation reveals that impact of wealth inequality on growth is mitigated by better governance.     

Redistribution and persistent exploitation in an accumulation economy with decreasing marginal impatience

Abstract

A variant of John Roemer’s accumulation economy is studied in which agents have identical payoff functions characterized by decreasing marginal impatience (DMI), such that time discount rates are decreasing in individual wealth levels. The implications of DMI for the existence and persistence of positive rates of profit and exploitation in the presence of capital accumulation, as well as for the dynamic redistribution of wealth, are derived. It is demonstrated that with DMI, differential ownership of productive assets is sufficient to ensure ongoing capital scarcity, and thus persistently positive rates of return and exploitation, as well as eventual redistribution of productive assets to the wealthiest agents.     

财富异质性对家庭金融资产配置的影响研究 ——基于 2015 年中国社会综合调查数据

随着我国家庭金融市场日渐完善,家庭金融资产配置的影响因素对优化家庭金融资产配置结构和提高家庭金融市场的参与率至关重要.本文从家庭财富角度出发,利用2015年中国综合社会调查数据里的9841个样本数据,运用logit模型,实证分析财富异质性对家庭金融资产配置的影响及其城乡差异.研究发现:财富水平不同的家庭,其金融资产配置存在显著差异,富裕家庭参与风险性金融市场的可能性更大,但当家庭财富累积到一定程度之后财富水平对家庭参与风险性金融市场的影响程度开始递减;城市相比于农村更有可能参与风险性金融市场,并且,在财富异质性对家庭金融资产配置的影响中,金融发展水平、被采访者的年龄和家庭规模大小等发挥着异质性作用.     

Wealth concerns and equilibrium

Most properties of the classical general equilibrium model without externalities fail to extend to the wildest forms of consumption externalities. The recent interest for wealth concerns, a kind of externality associated with herding behavior and other-regarding preferences, motivates a study of the general equilibrium exchange model with those externalities. The diffeomorphism of the equilibrium manifold with a Euclidean space, the smoothness and properness of the natural projection and its non-zero degrees are shown to hold true for endowment spaces with variable total resources. Other properties of the classical exchange model without externalities are fragile in the sense that they do not resist the introduction of wealth concerns even in models where consumers preferences are represented by the simplest forms of utility functions like the log-linear (or Cobb–Douglas) functions. The most notable fragile properties are the uniqueness and regularity of equilibrium at equilibrium allocations and the stability of no-trade equilibria.     

Strategic saving decisions in the infinite-horizon model

We study a mechanism that prevents the long-run distribution of wealth from becoming degenerate in the Ramsey–Cass–Koopmans model when households have different time-preference rates. This mechanism is based on the observation that price-taking behavior is no longer justified when all wealth is owned by a single household. Formalizing this observation, we obtain a model with a unique stationary equilibrium in which, depending on the parameter constellation, any number of households can own positive stocks of capital. We characterize this equilibrium and show for example that an increase in the dispersion of the time-preference rates across households unambiguously increases aggregate output. Whereas the main results are derived for a rather general class of production functions, we devote a separate section to the special case of the Cobb–Douglas technology for which the equilibrium conditions are particularly simple. The research reported in this paper forms part of the project “Economic Growth with Strategic Saving Decisions” supported by the Austrian Science Fund (FWF) under project number P17886. Comments from Robert Becker, Edward Green, Takashi Kamihigashi, David Levine, Fabrizio Zilibotti, anonymous referees, and participants at various conferences and seminars are gratefully acknowledged.