企业会计内部控制中存在的不足及改进方向

在现有市场经济体制中,国有和私有企业占据着主体地位.随着企业管理工作的不断发展,会计内部控制管理工作变得十分重要.做好会计内部控制相关工作,不仅有助于企业应对市场环境变化中的风险,还能有效强化企业整体的运行效率,促进企业更快、更好地发展.目前,企业会计内部控制工作存在一些问题,不利于企业的健康发展,文章主要结合企业会计内部控制的相关概念、改革必要性以及存在的问题,探究相应的解决措施和优化方案,以此推动企业的整体发展和进步.     

基于全面预算的国有企业内部控制工作实效性研究

近年来,我国社会经济呈现稳定发展的趋势.国有企业在社会经济的支持下,发展速度加快.但受市场变动不确定性的影响,国有企业的经营环境开始发生变化.国有企业为确保经营活动的有序开展,并在国际市场中占据一席之地,需要加强对全面预算与内部控制的重视,正确认识二者的关系,将全面预算作为国有企业内部控制的依据,提高内部控制水平.基于此,文章阐述了全面预算与内部控制的内涵,梳理了二者之间的关系,并分析了国有企业内部控制工作开展的现状,提出了全面预算下国企内部控制工作的强化措施.     

信息化环境下企业会计内部控制研究

信息技术的不断变革和发展,对企业管理提出了更高的要求.通过强化会计内控,能够帮助企业提升整体管理水平.信息化发展对内控产生了多方面的影响,比如控制环境、控制方式以及控制范围等,这些影响对企业造成了很大的挑战.基于信息化的背景,文章对内控进行了深入研究,通过分析信息化对内控的影响,总结出企业会计内控存在的问题,提出有效的解决措施,旨在推动企业更好地发展.     

Mortality,Human Capital and Persistent Inequality

Available evidence suggests high intergenerational correlation of economic status and persistent disparities in health status between the rich and the poor. This paper proposes a mechanism linking the two. We introduce health capital into a two-period overlapping generations model. Private health investment improves the probability of surviving from the first period of life to the next and, along with education, enhances an individual’s labor productivity. Poorer parents are of poor health, unable to invest much in reducing mortality risk and improving their human capital. Consequently, they leave less for their progeny. Despite convex preferences and technologies, initial differences in economic and health status may perpetuate across generations when annuities markets are imperfect.Additional support was provided by the National Science Foundation. Additional support was provided by the National Science Foundation.     

Piercing the Veil of Uncertainty in Transboundary Pollution Agreements

This paper addresses the question of how uncertainty in costs and benefits affects the difficulty of reaching a voluntary agreement among sovereign states. A measure of difficulty is constructed related to side-payments necessary to make an agreement a Pareto-improving move. Using a simple model, it is shown that uncertainty actually makes agreement easier.JEL classifications: Q5, H4, D7, D8An earlier version of this paper was presented at the Conference on Risk and Uncertainty in Environmental and Resource Economics, Wageningen, The Netherlands, June 2002.     

A simple search model of money with heterogeneous agents and partial acceptability

Summary. Simple search models have equilibria where some agents accept money and others do not. We argue such equilibria should not be taken seriously. This is unfortunate if one wants a model with partial acceptability. We introduce heterogeneous agents and show partial acceptability arises naturally and robustly. There can be multiple equilibria with different degrees of acceptability. Given the type of heterogeneity we allow, the model is simple: equilibria reduce to fixed points in [0,1]. We show that with other forms of heterogeneity equilibria are fixed points in set space, and there is no method to reduce this to a problem in R¹.Received: 4 September 2002, Revised: 23 September 2002JEL Classification Numbers: C78, E40.A. Shevchenko, R. Wright: We thank seminar participants at the Federal Reserve Bank of Cleveland, Indiana University, Purdue University, University of Toronto, the 2002 Midwest Macroeconomics Conference at Vanderbilt University, and the 2001 Conference on Economic Dynamics at the University of Essex. The National Science Foundation and the Federal Reserve Bank of Cleveland provided financial support. Braz Ministerio de Camargo and Gabriel Camera provided some helpful suggestions. Correspondence to: R. Wright     

Do stock market returns predict changes to output? Evidence from a nonlinear panel data model

Recent empirical work suggests a predictive relationship between stock returns and output growth. We employ quarterly data from a panel of 27 countries to test whether stock returns as useful in predicting growth. Unlike previous research, our approach allows for the possible non-linear effect of recessions on the growth-return relationship. There is strong evidence to suggest that a linear model would be misspecified and provide potentially misleading inference. Using a switching regression approach, we find evidence that returns are most useful in predicting growth when the economy is in recession.First version received: November 2002/Final version received: April 2003This paper benefited greatly from discussions with Kalvinder Shields, Mark Harris, Pete Summers, and Vance Martin. Two anonymous referees provided useful comments on an earlier version of the paper for which we are grateful. The usual disclaimer applies to any errors and omissions. Funding from The University of Melbourne greatly assisted in the completion of this paper.     

Mixed Duopoly,Merger and Multiproduct Firms

The literature on mergers has extensively analyzed the decision to merge by private firms, but it has not considered the decision to merge by private and public firms. We assume that when a private firm and a public firm merge (or when one of them acquires the other), they set up a multiproduct firm in which the government owns an exogenous percentage stake. In this framework, we show that the decision to merge by firms depends on the degree to which goods are substitutes and on the percentage of the shares owned by the government in the multiproduct firm.     

Threshold models for trended time series

This paper presents the theoretical development of a new threshold autoregressive model based on trended time series. The theoretical arguments underlying the model are outlined and a nonlinear economic model is used to derive the specification of the empirical econometric model. Estimation and testing issues are considered and analysed. Additionally we apply the model to the empirical investigation of U.S. GDP.This paper is the result of work carried out for the author's Ph.D. thesis. I would like to thank Hashem Pesaran for his help, encouragement and insights during the preparation of this paper. I also thank Gary Koop and Sean Holly for helpful comments. Financial assistance from the Economic and Social Research Council is gratefully acknowledged.