我国“一带一路”沿线地区风险投资时空分布及影响因素研究

深入分析我国“一带一路”沿线地区风险投资时空格局及影响因素，有助于促进创新创业与企业发展、提高区域科技创新水平。运用空间分析方法和空间计量模型，对2003-2018年我国“一带一路”沿线139个城市风险投资的时空分布特征及影响因素进行分析，结果表明：①沿线地区的风险投资发展具有不均衡性，呈现为沿海高、西部低的分异格局；②风险投资的全局自相关系数均为正，呈现出明显的空间集聚特征；③风险投资机构数、国家高新区数量、风险投资退出、政府引导基金发展、财政科技支出对区域风险投资具有显著促进作用，环境污染对风险投资有一定抑制作用。随着ESG投资理念逐渐获得认可，沿线地区可以通过提升绿色发展水平促进风险投资发展。     

Choice of Distribution System in the New Zealand Life Insurance Industry

Using 1988–93 panel data drawn from the New Zealand life insurance industry, this paper examines empirically the notion that the choice of distribution system is an efficient contracting solution to incentive conflicts between owners, managers and sales agents in life insurance firms. Consistent with what was hypothesised, the empirical results suggest that choice of distribution system is distinguished by organisational form, firm size, and sales commission. However, contrary to expectations, the variables representing product diversity and asset specificity were found not to be statistically significant. The empirical results thus lend mixed support for prior predictions.     

CROSS‐DOCKING AND ITS IMPLICATIONS IN LOCATION‐DISTRIBUTION SYSTEMS

Cross‐docking replaces traditional warehousing, enabling continuous flow of items without storage. Here we model location‐distribution networks, that include cross‐docking facilities, to obtain the latter's impact on the supply chain. We formulate optimization models to minimize total cost in three multi‐echelon networks, each model generalizing the preceding one. The first includes a single manufacturer, one product type, and multiple customers. Cross‐docks are to be located between origin and destinations. Besides solving optimally, a tool for quantitative analysis of direct‐shipment decisions is developed. The second model considers more than one product: We determine a cost‐effective sequence of items for indirect shipment (via cross‐docks). Finally, in a network with multiple origins, optimal solutions are obtained for 40 medium‐sized and larger examples.     

On Sraffa's Standard commodity: is its price invariant with respect to changes in income distribution?

In his 1960 book, Sraffa suggested using a composite commodity,which he called the ‘Standard commodity’, to solveRicardo's search for an invariable measure of value, i.e., astandard capable of isolating the price movements of any othercommodity induced by changes in income distribution. The absencein Sraffa's book of an explicit proof of the invariance propertyof this standard gave rise to many misunderstandings about itsmeaning and its role as an invariable measure of value. In orderto clear up these questions, Bellino (On Sraffa's Standard commodity,Cambridge Journal of Economics, vol. 28, 121–32, 2004)has proposed a ‘proper’ definition of an ‘invariablemeasure of value’, showing that Sraffa's Standard commoditydoes fulfil the requirements of this definition. He claims thatthe fulfilment of this property (but not the constancy of its‘nominal’ price) qualifies the Standard commodityas an invariable measure of value. In this paper, a proof ofthe invariance of the price of the Standard commodity with respectto changes in income distribution is given, and the equivalenceof this property with Bellino's definition of invariance isshown.     

中国人口老龄化变化趋势及完善养老保险体制的研究

本文利用全国人口普查和经常性统计的有关资料，在不同的人口政策目标参数假设下，根据中国人口预测系统（CPPS）和人口生命表对今后45年中国人口老龄化的变化趋势进行了分析和预测。根据预测结果，通过较全面系统地分析中国社会养老保险体制的现状，指出了其存在的问题，特别是在中国人口老龄化快速发展趋势冲击下已经出现及可能出现的问题。在此基础上，提出了几点具有可操作性的改革和完善养老保险体制、退休及人口生育等方面的政策建议。     

Simpler Probabilistic Population Forecasts: Making Scenarios Work

The traditional high-low-medium scenario approach to quantifying uncertainty in population forecasts has been criticized as lacking probabilistic meaning and consistency. This paper shows, under certain assumptions, how appropriately calibrated scenarios can be used to approximate the uncertainty intervals on future population size and age structure obtained with fully stochastic forecasts. As many forecasting organizations already produce scenarios and because dealing with them is familiar territory, the methods presented here offer an attractive intermediate position between probabilistically inconsistent scenario analysis and fully stochastic forecasts.     

我国城市规模分布Pareto指数测算及影响因素分析

本文用OLS方法测算我国各省、三大区域以及全国的城市人口规模分布和经济规模分布Pareto指数(1997年、2000年和2003年),对Pareto指数进行跨区域和跨时间的对比分析,并实证分析我国城市规模分布的影响因素。分析表明,我国的城市规模分布显著地服从Pareto分布,并具有明显的结构性特征。工业化、产业结构以及运输能力对城市人口规模分布具有显著影响,而工业化和运输能力则是影响城市经济规模分布的重要因素。     

湖南分税制:存在的问题和改进建议

健全湖南分税制财政体制是1994年改革的继续和深化,也是目前政治、经济和社会形势发展变化的客观要求.本文通过分析湖南分税制运行存在的问题,尝试从整合经济资源、改进行政和财政体制、理顺地方各级政府间相互关系和加强管理等方面提出现阶段完善湖南分税制的建议.     

个人所得税统计数据反映的两个经济现象

自改革开放以来,个人所得税保持着稳定的增长趋势,反映了我国国民收入分配结构的变迁,同时,作为一种制度,个税制度正在成为越来越重要的一种国家干预经济的手段。作为初次分配的一种直接反映,个人所得税比重的地域差异、结构差异反映着我国的收入差距和分配公平问题。     

销售渠道风险管理

本文首先建立了一套用以评估销售渠道风险的指标体系，通过建立企业各销售渠道的物元模型，运用物元的可拓性，将销售渠道的建设和管理控制的指标量化，按照统一规范化运算，得出便于比较的优度，从而对各类渠道风险进行排序选择风险最底的渠道。最后，本文以一个算例对评估销售渠道风险模型进行了实证研究。