自主创新战略下的企业变革方向及策略

自主创新,作为科学技术发展的战略基点,能大力提高模仿创新能力、原始创新能力、集成创新能力。只有了解我国自主创新中存在的问题,才能为我国企业变革寻找到有效的途径,为其发展指明方向。     

基于中性税收构想的增值税转型经济学及试点效果分析

本文依据税收相对中性理论,增值税以其自身的内在优势,与中性税收所要求的效率原则和普遍原则相契合。从经济学视角看,增值税转型主要由生产型、收入型增值税向消费型增值税转变,更多地体现中性收入原则。本文认为,考虑到财务承受能力现阶段应逐步推行,即先对东北老工业基地进行试点,然后逐步对全国的所有行业实行消费型增值税。     

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。     

Multi-step barrier products and static hedging

This paper examines multi-step barrier options with an arbitrary payoff function using extended static hedging methods. Although there have been studies using extended reflection principles to obtain joint distribution functions for barrier options with complex barrier conditions, and static hedging methods to evaluate limited barrier options with well-known payoff functions, we obtain an explicit expression of barrier option price which has a general payoff function under the Black–Scholes framework assumption. The explicit multi-step barrier options prices we discuss in this paper are not only useful in that they can handle different levels and time steps barrier and all types of payoff functions, but can also extend to pricing of barrier options under finite discrete jump–diffusion models with a simple barrier. In the last part, we supplement the theory with numerical examples of various multi-step barrier options under the Black–Scholes or discrete jump–diffusion model for comparison purposes.     

A semi-analytic valuation of two-asset barrier options and autocallable products using Brownian bridge

Barrier options based upon the extremum of more than one underlying prices do not allow for closed-form pricing formulas, and thus require numerical methods to evaluate. One example is the autocallable structured product with knock-in feature, which has gained a great deal of popularity in the recent decades. In order to increase numerical efficiency for pricing such products, this paper develops a semi-analytic valuation algorithm which is free from the computational burden and the monitoring bias of the crude Monte Carlo simulation. The basic idea is to combine the simulation of the underlying prices at certain time points and the exit (or non-exit) probability of the Brownian bridge. In the literature, the algorithm was developed to deal with a single-asset barrier option under the Black–Scholes model. Now we extend the framework to cover two-asset barrier options and autocallable product. For the purpose, we explore the non-exit probability of the two-dimensional Brownian bridge, which has not been researched before. Meanwhile, we employ the actuarial method of Esscher transform to simplify our calculation and improve our algorithm via importance sampling. We illustrate our algorithm with numerical examples.     

Exponential stock models driven by tempered stable processes

We investigate exponential stock models driven by tempered stable processes, which constitute a rich family of purely discontinuous Lévy processes. With a view of option pricing, we provide a systematic analysis of the existence of equivalent martingale measures, under which the model remains analytically tractable. This includes the existence of Esscher martingale measures and martingale measures having minimal distance to the physical probability measure. Moreover, we provide pricing formulae for European call options and perform a case study.     

天生桥二级水电站监控系统上位机改造中新老远动通讯机过渡方法

贵州天生桥二级水电站计算机监控系统原先采用的上位机监控软件是基于Windows操作系统平台的iFiX工控组态软件,现地控制单元采用的是以SIEMENS S7-300 PLC为基础的智能分布式数据采集和控制装置,并通过Profibus现场总线方式连接后接入上位机。文章主要介绍了天生桥二级水电站监控系统上位机改造过程中新、老远动通讯机的过渡方法,从而保证各现地LCU由老监控系统逐步移植至新监控系统,使调度对电站相关数据的监视不受影响。     

基于小波变换的图像融合方法及其性能评价

近年来,图像融合已成为图像理解和计算机视觉领域一项重要的新技术。把小波变换技术应用到图像融合之中是该研究领域的重大突破。文章以小波变换为工具,描述了基于小波变换的多传感器图像融合算法的实现,提出了多种融合规则和融合算子,并对融合结果进行了深入分析和性能评价。     

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。     

论新工厂管理

随着社会经济的发展,越来越多的企业在竞争中诞生或消失,而新工厂的不断出现,要在竞争中具有优势,在竞争中发展,管理是关键。本文针对新工厂的特点,提出新工厂管理的四个关键所在:基础管理,成本管理,企业领导的作用,变革管理。