Population ageing and inflation with endogenous money creation

This paper models a mechanism through which population ageing may induce a deflationary process. We propose an overlapping-generations model (OLG) with money created by credits (inside money) and intergenerational trade. The model links demographic factors, such as fertility rates and longevity, to prices. We show that lower fertility rates lead to smaller demand for credit and lower money creation, which in turn cause a decline in prices. Changes in longevity affect prices through real savings and the capital market. Furthermore, a few links between interest rates and inflation are addressed; they arise in the general equilibrium and are not thoroughly discussed in literature. Long-run results are derived analytically; short-run dynamics are simulated numerically.     

一场影响深远的错误批判——试述对马寅初《新人口论》的批判

1953年的人口普查引起我国著名经济学家马寅初的高度重视,他通过实地调查,于1957年提出《新人口论》,分析了我国人口增长同生产力发展的矛盾,从而提出控制人口的主张。但由于极左思潮的影响,《新人口论》遭到批判。各种批判文章将马寅初的《新人口论》和马尔萨斯的人口论挂钩,指责马寅初的《新人口论》是新马尔萨斯主义。这场错误批判产生了严重的后果,它把许多人口学家错误地打成右派,使我国人口理论的研究停滞,使计划生育工作受到严重挫折。     

Strategy-proof preference aggregation: Possibilities and characterizations

An aggregation rule maps each profile of individual strict preference orderings over a set of alternatives into a social ordering over that set. We call such a rule strategy-proof if misreporting one's preference never produces a different social ordering that is between the original ordering and one's own preference. After describing two examples of manipulable rules, we study in some detail three classes of strategy-proof rules: (i) rules based on a monotonic alteration of the majority relation generated by the preference profile; (ii) rules improving upon a fixed status-quo; and (iii) rules generalizing the Condorcet–Kemeny aggregation method.     

基于个体为本模型的中国碳排放核算模型构建

为合理测算中国碳排放总量, 提出了以单个人为基础的碳排放核算模型。个体碳排放量受其物质资本与人力资本、消费倾向与投资倾向影响,而计算中国碳排放总量还应考虑人口增长的影响。对个体资本投资倾向提出合理假设,进而构建人口增长模型。最后,根据各省GDP分布情况,赋予模型一个初始财富值,核算出中国碳排放总量。     

FOOD INSECURITY AND INSUFFICIENCY AT LOW LEVELS OF FOOD EXPENDITURES

In this study we investigate the external validity of the food insecurity and insufficiency measures—specifically, how these measures correlate with food expenditures—using the December 2003 Food Security Supplement of the Current Population Survey. We focus on a special segment of the population—households with low incomes and low food expenditures. If reports of food problems are based on a lack of food, reports should be nearly ubiquitous at the bottom of the expenditure distribution. We find, however, that this is not the case. We define and scale food expenditures several different ways and find that the reported incidence of food insecurity never rises above one‐half anywhere along the corresponding expenditure distributions, leading to concerns about the external validity of the measure.     

人口老龄化背景下法国养老金保险制度改革及其启示

本文首先介绍了法国养老金制度的现状;然后介绍了萨科齐政府养老金制度面临的挑战;紧接着介绍了2010年养老金改革法案的内容及历程;最后借鉴法国养老金制度改革的经验,总结出完善我国养老金制度的几点启示:避免社会保障碎片化格局;社会保障不能拖累经济发展;设计养老金制度必须考虑可持续性问题;鼓励社会各界参与养老保险改革。     

人口流动对农户环境治理支付意愿的影响——基于双栏模型

农村环境治理关乎乡村振兴的成效,农户的参与与否及其参与程度直接影响着农村环境治理的成效。基于农村人口流动的现状,对福建、安徽、陕西三省的529位农户进行了调查,采用双栏模型检验家庭人口流动对农户环境治理支付意愿及其支付额度的影响程度。结果表明,人口流动对农户环境治理支付意愿有显著的负向作用,而对农户环境治理支付额度有显著的正向作用。此外,不同省份区域人口流动对环境治理支付意愿的影响机制不同。     

农村城市化中人口迁移问题研究——基于刘易斯与托达罗理论的分析

文章从发展经济学的角度,对农村人口迁移理论作了简要回顾,重点论述了刘易斯的二元经济论与托达罗模型,并结合我国农村城市化过程中人口迁移的实际情况,探讨人口迁移对我国农村城市化发展带来的影响,并提出在这一过程中要注意的一些问题。     

论人口法律行为

人口法律行为是人口法的基本范畴之一,人口法的独立性是人口法律行为得以存在的前提和基础。人口法律行为与人口行为既有联系,又有区别。研究人口法律行为可以为我国人口立法提供理论基础,为规范人们的人口行为提供法律依据。     

日本M&A市场的新趋势

随着经济全球化的深入,世界规模的企业重组和资金流动改变着各个行业中的企业势力范围。从10年前开始。日本企业为了保卫和加强现有的势力范围防止来自国内或国外的威胁开始了一场新的M＆A高潮。这次的N＆A不管在N＆A件数,还是在所涉及的行业、规模、收购金额大小上都有突破,在日本的M＆A历史上留下一页。同时,N＆A收购过程也改变了日本社会对M＆A的认识,也冲击到了日本传统的终身雇佣制。运用M＆A来解决日本社会面临的问题。如人口减少和老龄化的问题也是这次M＆A的新尝试。