中小企业应收账款质押融资实证研究

通过审视我国应收账款质押融资现状,运用因子分析方法,得出影响应收账款质押融资业务发展的主要因素,从诚信视角剖析了应收账款质押融资风险,探讨了建立应收账款质押信用信息共享和失信惩戒制度的途径和机制。     

What Advertisers Need to Know About Promotion in the Arab World: Technology and Media Perspectives

There is little doubt that globalization has and continues to have a significant impact on business activities worldwide. The impact of globalization was made possible mainly by advances in technological innovation including the area of global communication. Among the many regions that have been significantly impacted by globalization is the Arab world. The purpose of this paper is to provide answers to the following questions: (a) What technological innovations related to advertising and promotion are dominating the Arab world?; (b) What is the media landscape as it relates to advertising and promotion in the Arab world?; (c) What media outlets are being consumed by Arab consumers?; and (d) What are the most effective media outlets in reaching the Arab consumer? Arguments have been made that the growth of mobile phones, Internet technology, and multimedia devices such as iPods and PlayStation Portables has contributed to the trend of youth moving away from traditional media platforms such as television. While this finding has been supported in research for some regions of the world, this paper studies whether it holds true for the Arab population.     

On the flow of funds accounts and inter-sectoral mobility of capital in India

This study uses the flow of funds accounts framework and undertakes an in-depth analysis of the inter-sectoral mobility of capital in India. Unlike previous studies, the FH model is estimated at the sectoral level using annual data for the period 1950–51 to 2012–13. The model estimated in one-regime setting with no structural break provides a weak and mixed support and that estimated in a sample-split setting with a single structural break provides no support for the presence of a long-run relationship between saving and investment for all the sectors. In contrast, the model estimated with multiple structural breaks provides dominant support for the presence of cointegration between saving and investment for all the sectors. The end-of-sample cointegration breakdown tests suggest the breakdowns of cointegration between saving and investment in all the sub-sample periods for the household and PCB sectors, but not for the public sector. The FOF accounts could be used to monitor the borrowing and lending operations of both financial and non-financial sectors and to identify any deformities in the system. The regulatory and supervisory policies need to be put in place promptly to resolve the identified deformities at their early stages, before they magnify and make the entire system dysfunctional.     

SUPPLY-USE FRAMEWORK FOR INTERNATIONAL ENVIRONMENTAL POLICY ANALYSIS

The technical variation between countries in the production of goods and services, in terms of not only input coefficients, but also emission coefficients, creates scope for international trade to reduce environmental pressures. For this purpose we extend the theory of trade and the environment as to accommodate technical variation between countries in production and emissions. We use and steer close to the extended input and output tables, which include emission data. By treating environmental standards analogous to capital and labor capacity constraints, the aggregation problem for economic and environmental measures gets the same format as the well-understood aggregation problem for labor and capital. In a pilot application we determine the gains to free trade in products and emission permits.     

空间系统的发展与军事应用

回顾和总结了世界空间系统发展的整体情况,分析了美国、俄罗斯、欧盟、日本、印度等国家或组织研发军事卫星系统的现状,阐述了世界范围内卫星系统发展及军事应用的新动态,总结了空间系统在近几次局部战争中的实际应用.     

不完美碰撞检测的CSMA/CA协议性能分析

传统中低轨小卫星群的移动自组织网络中，卫星采用半双工载波侦听/碰撞规避协议（Carrier Sensing Multi-access/Collision Avoidance,CSMA/CA）接入控制信道。为避免半双工模式“盲听”对碰撞感知存在的延时，提升接入效率，卫星需要工作在碰撞检测和数据接收同步进行的全双工模式；同时由于卫星通信特点，残余自干扰带来的不完美碰撞检测不可忽略。针对以上需求，设计了一种全双工CSMA/CA协议，对接入流程和参数进行了详细描述；研究了自干扰抑制度和检测门限等与虚警率、漏检率的数学关系；推导了系统吞吐量的解析表达式，并仿真探究了初始竞争窗口长度等参数的优化设计准则。仿真结果表明，通过合理选取参数，该协议能在存有不完美碰撞检测的情况下，实现吞吐量的提升。     

利用精密单点定位技术评估晶振频率稳定度

在评估晶振频率稳定度时，目前常用一个频率稳定度比待测晶振高3倍以上的时钟作为参考，造成测试成本高昂。在分析精密单点定位（Precise Point Positioning,PPP）技术原理的基础上，提出了一种基于PPP技术的频率稳定度评估方法，并利用该方法对一款秒稳达到10-12的高稳定度恒温晶振（Oven Controlled Crystal Oscillator，OCXO）进行了评估，评估结果与利用氢原子钟为参考的传统频率稳定度评估方法基本吻合。最后给出了该方法对不同等级晶振的评估能力。该方法结构简单，测试方便且成本低廉，能满足常用时频设备（如通信设备、卫星导航接收机）的晶振评估需求。     

FROM INPUT–OUTPUT TABLES TO SUPPLY-AND-USE TABLES

In 1991, Statistics Netherlands introduced the supply-and-use tables as part of the national accounts. Since then, the supply-and-use tables have been the main statistics on the production structure of the Dutch economy. They form the basis from which input–output tables are derived. The time series of supply-and-use tables starts in 1987. However, there is a need for a time series since 1970 because benchmark revisions of the Dutch national accounts would become far easier if such time series were available. Therefore, a method has been developed to derive supply-and-use tables from existing input–output tables. This article presents the algorithm.     

Finnish prohibition as an economic policy issue

Abstract

The experience of the Finnish Prohibition Act, which was in force from 1919 to 1932, shows that Finnish prohibition was not simply a question of ethics or morals, but was influenced in great measure by questions of economic policy. It can also be said that prohibition and the expedience of ‘going dry’ were examined from the economic viewpoint not only at the time in 1931 when the political decision-makers were deciding whether or not the experiment should be continued, but had been seen and discussed in this light right from the time of the passing of the Act.     

Regionalizing National Commodity-by-Industry Accounts

Exended input–output (IO) models are increasingly prominent in regional economic analysis. Social accounting matrices and associated multiplier decompositions, IO econometric model hybrids and computable general equilibrium models are finding greater acceptance in contexts in which simple IO models once dominated. Although the extended regional models build primarily on the foundation of regional, interindustry accounting frameworks, the data from which these regional accounts are drawn are most commonly in the form of a national commodity-by-industry account. Despite this longstanding fact, the IO table adaptation literature has focused almost solely on methods of adapting national interindustry accounts to regional economies. This paper presents a method designed specifically to regionalize commodity-by-industry accounts, in the context of the US reporting system. The focus on commodity-by-industry data demands a confrontation with several important issues that otherwise might go unattended. Using a particular system and its accompanying classification scheme ensures a comprehensive and consistent regionalization method.