二元经济条件下需求不足原因及财政政策的选择

本以二元经济理论为主要分析工具,说明了我国宏观经济需求不足的实质是二元结构及其体制变迁,在二元经济条件下,有效的财政政策应该是能兼顾短期和长期,协调总量和结构、 着力于政策和体制联动的政策,政策的着力点应该是在有利于二元结构转换和体制改革的方向：在城市要重点排除有碍于新的消费和投资增长点形成的体制和政策障碍;在农村则要重点疏通和拓宽农民向非农产业转移和农村城市化的渠道。     

新型工业化背景下工业反哺农业的制度创新

根据国外许多国家的经验，进入工业化中后期阶段以后，依靠工业提高农业现代化水平是一个普遍的规律。我国目前从总体上已经进入到了工业化的中期阶段，从工农关系和城乡关系上来看已经进入到了工业反哺农业、城市带动乡村的发展阶段。在新型工业化背景下实现“工业反哺农业”和“以城市带动乡村”的发展战略转型，必须进行相关的制度创新，建立以农村为本的发展战略，使工农业关系由过去的农业哺育工业的关系转向工农业平等发展的关系。     

产业集群知识转化分析

文章分析了产业集群内各个企业间形成的网络关系,应用Nonaka提出的知识转化SECI模型分析了产业集群内的知识转化过程,提出了影响这种转化过程的3个关键因素。     

深化改革 规范发展 推进稳步转型——以西乡街道为视角浅析社区股份合作公司的改革与发展

随着深圳城市化进程的加速,社区股份合作公司作为一种新生力量,在为原居民提供就业岗位、增加收入、改善生产和生活条件,促进经济社会发展等方面发挥了不可替代的作用,其改革与发展也越来越受到社会各界的关注。本文以深圳市宝安区西乡街道为视角,深入分析了当前影响和制约社区股份合作公司发展的原因,并提出了相应的对策建议。     

A Recursive Scheme for Perpetuities with Random Positive Interest Rates. II: The Impenetrable Wall

In some former contributions, the authors investigated actuarial quantities with stochastic interest rates. In a first model, the randomness is modelled by means of an ordinary Wiener process, and as a consequence negative interest rates are possible. A second model provides a tool to avoid these negative interest rates, which can be necessary in particular situations. This paper wants to present an alternative solution to the problem of negative interest rates. This new model will be implemented to the case of an annuity certain and of a perpetuity.     

植筋技术发展及应用

植筋技术作为目前工程界较为常用的加固改造方法之一，有其独特的技术特点和广泛的应用范围。文章简要介绍了植筋技术的基本概念和技术特点，并对植筋技术的应用范围和应用特点进行了介绍与分析，最后指出植筋技术还需做进一步的研究和完善。     

我国宏观税收负担走势分析与政策选择

从大的方面看,世界各国宏观税负水平的差异主要表现为发达国家和发展中国家的税负差异,造成这些差异的主要原因包括经济发展水平、社会保障制度和税收征管水平、税收制度以及优惠政策等。通过对我国目前宏观税负水平的判断,应该在推进税费改革、实现增值税转型、规范企业所得税优惠等方面有所改进。     

Risk measures for derivatives with Markov-modulated pure jump processes

We consider a regime-switching HJB approach to evaluate risk measures for derivative securities when the price process of the underlying risky asset is governed by the exponential of a pure jump process with drift and a Markov switching compensator. The pure jump process is flexible enough to incorporate both the infinite, (small), jump activity and the finite, (large), jump activity. The drift and the compensator of the pure jump process switch over time according to the state of a continuous-time hidden Markov chain representing the state of an economy. The market described by our model is incomplete. Hence, there is more than one pricing kernel and there is no perfect hedging strategy for a derivative security. We derive the regime-switching HJB equations for coherent risk measures for the unhedged position of derivative securities, including standard European options and barrier options. For measuring risk inherent in the unhedged option position, we first need to mark the position into the market by valuing the option. We employ a well-known tool in actuarial science, namely, the Esscher transform to select a pricing kernel for valuation of an option and to generate a family of real-world probabilities for risk measurement. We also derive the regime-switching HJB-variational inequalities for coherent risk measures for American-style options.     

运用税收政策提升居民储蓄存款的投资、消费转化率

随着分配格局的变化,我国越来越表现出明显的“超储蓄”现象。“超储蓄”现象的成因有两个方面:一是国家的保障制度还不够健全;二是投资和消费的安全性不够、动力不足。要促使储蓄转化为投资和即期消费,主要可以通过部分修改税法、开征个人财产税、开征社会保障税和调整个人所得税等税收政策来完成。