新凯恩斯菲利普斯曲线理论的演变

20世纪80年代以来新凯恩斯主义结合在理性预期基础上的微观公司定价机制,对菲利普斯曲线进行了多样化的发展,并对货币政策制定机构的政策提出了可行的建议。最新的理论从相对工资、后顾性行为、不完全要素市场、粘性信息、不完全理性预期以及适应性学习等角度出发,不断充实了价格粘性、通胀惯性的微观基础。     

消费者决策过程模型与经济学需求曲线的理论证明

本文用驱动/阻挡的作用模型来引出消费者购买决策过程与决策判则,指出购买行为发生的前提条件是:消费者净获得价值必须大于等于零,即消费者效用必须大于等于消费者支出;研究了单个消费者的最优决策机制,同时使用了机会效用和真实收入价格对效用和支出概念进行了再解释,从而从理论上完成了单个消费者和消费者集体两种条件下的经济学需求曲线定律的理论证明。     

Recent approaches to estimating Engel curves

Classical approaches of estimating cross-section Engel curves are based on parametric models. However, misspecification of a parametric model implies that information of structural nature might be masked. An alternative avoiding problems related to predetermined functional relations is the nonparametric approach. This paper surveys recent advances of nonparametric statistics in their relevance to estimating cross-section Engel curves.     

History dependence without unstable steady state: a non-differentiable framework

In this paper, a non-differentiability is identified as a new mechanism that creates history dependence in dynamic economic models. A unique characteristic is that this occurs although no unstable steady state exists. This is shown by studying a capital accumulation model in which the revenue function exhibits a kink. It can be expected that history dependence will occur in other models with non-differentiabilities as well.     

The Relationship between Economic Growth and Environmental Quality in Beijing： A Verification of the Environmental Kuznets Curve

This paper empirically examines Environmental Kuznets Curve （EKC） with time series data for Beijing from 1985 to 1999. The results lead to two main conclusions： the environmental policy of Beijing and China governments has made the turning point of EKC come early, at around 3000-50005; and the relationship between economic growth and environmental degradation takes on an inverted-U, but different regions may have different turning points, different time-span for realizing the turning point of EKC, and different slopes for the rising-declining pattern.     

基于穿梭式母车运动学模型的matlab仿真分析

优化了V=f(s)的S型曲线，引入跃度参数的概念，结合运动学基础公式推导出瞬时功率。首先建立母车运动时间控制曲线的数学模型，利用专业的数学仿真软件matlab进行仿真分析，最后利用函数变换，建立了母车的运动位移控制曲线。通过仿真的效果，既可以优化控制曲线，还可以对电机功率进行优化。     

Input‐output analysis and income distribution patterns of the tourism industry in South Korea

This study estimates the economic effects of the tourism industry in South Korea by using the Input‐Output Model in terms of output, income, employment, value added, indirect tax, and import The distribution of income is also examined in the tourism industry among various social classes using the Lorenz curve and the Gini coefficient The results show that the tourism industry performed better than most of other industries in terms of generating employment and tax revenues. The tourism industry also performs better in terms of minimizing leakage, but more poorly in terms of the linkage effect as compared to the majority of other industries. The Gini coefficient and the Lorenz curve show that the tourism industry performs moderately well in the distribution of income among household income classes as compared to the majority of other industries.     

The J‐Curve: Evidence from Fiji*

This article provides new evidence on both long run and short‐run determinants of trade balance for Fiji and investigates evidence of J‐curve adjustment behaviour in the aftermath of a devaluation. We adopt a partial reduced form model that models the real trade balance directly as a function of the real exchange rate and real domestic and foreign incomes. Cointegration analysis is based on a recently developed autoregressive distributed lag approach—shown to provide robust results in finite samples. The long run elasticities are also estimated using a dynamic ordinary least squares approach and the Fully Modified Ordinary Least Squares (FM‐OLS) approach. Amongst our key results we find that there is a long‐run relationship between trade balance and its determinants. There is evidence of the J‐curve pattern; growth in domestic income affects Fiji’s trade balance adversely while foreign income improves it.     

现行主要税种税收超额负担分析

税收超额负担是超过政府所征集的税收收入而形成的社会净福利损失。税收超额负担是税收效率分析的核心，它可以借助于消费者和生产者剩余以及无差异曲线进行分析，分析过程应更关注征税引起的价格变动的替代效应，我国现行主体税种都不同程度地破坏了各种市场资源配置的均衡条件，降低了经济运行效率，产生了超额负担。通过对税收超额负担的分析能够得出有助于提高资源配置效率的各种结论。     

“J曲线效应”视角下我国风险投资研究

文章阐述了我国风险投资的发展状况，用“J曲线”分析了风险投资的特点，并针对我国风险投资发展不足之处提出了建议。