Tax Revenue Effects of Sectoral Growth and Public Expenditure in Uganda

This paper contributes to a growing strand of literature on the determinants of tax revenue performance in developing countries, particularly in Sub‐Saharan Africa. More specifically we estimate the tax elasticities of sectoral output growth and public expenditure. The unique features of this paper are twofold: First, we develop a simple analytical model for tax revenue performance taking into account some structural features pervasive in most developing countries with large informal sectors. Second, we test the model predictions on Ugandan time series data using ARDL bounds testing techniques. Results indicate that dominance of the agricultural and informal sectors pose the largest impediments to tax revenue performance. In addition development expenditures, trade openness, and industrial sector growth are positively associated with tax revenue performance. We propose policies to support the development of value added linkages between agricultural and industrial sectors while emphasizing the need to unlock the potentially large contributions of the informal sector with a view of widening the tax base.     

排污权交易下对企业激励机制的分析

在法律严明且具有良好执行力的情况下,通过法律对排污权的严格界定并对排污权进行维护,产权能够对排污企业产生良好的激励作用。而在法律不完善或缺乏执行力的情况下,在初始排污权分配和政府的监管环节中,很容易形成排污企业与政府有关部门的共同利益,从而产生寻租行为。要建立和完善排污权交易市场首先要完善相关法律,同时加强第三方监管,加强舆论监督,建立完善的信息公开机制,避免寻租行为的发生。     

中国M2／GDP过高的原因分析——基于货币供求理论的研究

货币经济化是一国商品经济发达程度的货币体现,反映了一国金融深化的程度,通常用M2/GDP来衡量.改革开放以来,经济高速发展的中国在这一比值上却远高于欧美等发达国家或是其他发展中国家.为分析金融体系的这一特殊现象,本文从货币供求的角度展开分析了中国M2/GDP过高的原因.     

宝钢CSI模型在B2B电子商务中的应用

客户满意度是企业衡量其产品和服务受欢迎程度的一种方法，也是企业面对充满不确定变数的市场环境所采取的一种思维模式和行为规则。本文基于美国顾客满意指数模型结合宝钢实际情况提出宝钢客户满意模型（BCSI模型），分析探讨BCSI模型在宝钢电子商务应用过程中的关键作用。其中重点分析用户关注的质量感知因素、价值感知因素，提出基于BCSI模型的电子商务服务标准框架。     

C2C交易快递服务满意度研究

服务满意度在不同的行业与企业有着不同的定义，其评价标准也难以确定。文章针对C2C客户和C2C网站对快递服务满意度评价问题，采用三角模糊数对定性指标进行处理，采用熵评价的方法将信息质量反映到组合权中，最终结合层次分析法确定组合权重，从而改进了传统层次分析法确定权重的方法。     

Prices vs. quantities: Public finance and the choice of regulatory instruments

Since Montgomery [1972. Markets in licenses and efficient pollution control programs. Journal of Economic Theory 5, 395-418] and Weitzman [1974. Prices vs. quantities. Review of Economic Studies 41, 477-491], it has generally been assumed that, in a full-information setting, tradable quotas and taxes are equivalent regulatory instruments. We demonstrate that, if the government is movitated by public-finance concerns, this equivalence holds only if quotas are short lived. Moreover, the government prefers quotas with the shortest possible lifetime, or, what is equivalent in our setting, taxes.     

Search frictions and labor market participation

Cross-country differences in labor market participation are often larger than differences in unemployment rates. The same holds true across demographic groups within a given economy. We argue that the interaction between labor force participation decisions and labor market frictions can help us understand these patterns. This interaction highlights dynamic aspects of the participation decision, in contrast to standard textbook treatments that emphasize static costs and benefits of participation. We extend the standard labor market search problem to allow for a third state—non-participation—and assumes that stochastic participation costs precipitate flows into and out of non-participation. We fully characterize the worker's decision problem and use numerical simulations to demonstrate how participation patterns vary with individual characteristics and with labor market conditions.     

我国C2C交易市场中二线网站的现状与运营措施分析

当前我国的C2C电子商务交易市场已进入寡头垄断时期。呈现出“三强纷争、淘宝独大”的局面。在淘宝网这个支配型寡头的绝对优势下，TOM易趣、拍拍网和百度“有啊”等二线C2C网站勉力竞争，努力做大，但未来数年内很难撼动淘宝网的霸主地位，业已形成的市场格局短期内很难改变。整个C2C市场同时又充满了变数，二线网站的市场运营措施决定了其成败。大浪淘沙后的幸存者将成为其中流砥柱。     

论区域资源发现方法在检察网络中的运用

资源发现是整个网格系统的热点研究问题,本文作者结合检察网络工作实际需要,结合P2P技术提出了一种基于资源区域的网格资源发现的新方法,按照资源的类型将网格资源划分为多个区域,具有相同类型资源的网格信息节点组织在同一区域中,各区域由一个域中心节点进行管理,各域中心节点形成P2P层。把网格中的资源分为域间-域内两类,从而大大提高了查询效率和通信效率,减少了网络流量。     

Modelling the nonlinear relationship between CO2 emissions from oil and economic growth

The purpose of this paper is to examine the relationship between carbon dioxide (CO2) emissions from oil and GDP, using panel data from 1971 to 2007 of 98 countries. Previous studies have discussed the environmental Kuznets curve (EKC) hypothesis, but little attention has been paid to the existence of a nonlinear relationship between these two variables. We argue that there exists a threshold effect between the two variables: different levels of economic growth bear different impacts on oil CO2 emissions. Our empirical results do not support the EKC hypothesis. Additionally, the results of short-term analyses of static and dynamic panel threshold estimations suggest the efficacy of a double-threshold (three-regime) model. In the low economic growth regime, economic growth negatively affects oil CO2 emissions growth; in the medium economic growth regime, however, economic growth positively impacts oil CO2 emissions growth; and in the high economic growth regime, the impact of economic growth is insignificant.