Environmental Abatement and Intergenerational Distribution

This paper employs an overlapping-generations model to explore the impactof public abatement on private investment and the intergenerationaldistribution of welfare. Whereas public abatement benefits the oldestgenerations in terms of non-environmental welfare, future generations gainmost in terms of environment welfare. The overall benefits tend to besmallest for generations born at the time of the unanticipated policy shock.Public debt policy, however, can be employed to ensure that welfare gainsare distributed more equally across the various generations. Such a policyimplies that natural capital crowds-out man-made capital.     

Capital Accumulation in a Stochastic Overlapping Generations Model with Social Security

This paper analyzes the impact of pay-as-you-go financed social security on the stochastic process for the capital stock in a stochastic overlapping generations model. It is shown that the probability distribution of the capital stock in absence of social security dominates that in a pay-as-you-go system in the sense of stochastic dominance. Furthermore, the study demonstrates that the sufficient conditions ensuring the existence and uniqueness of stationary equilibria in a pay-as-you-go system are more restrictive than in the model without social security. Journal of Economic Literature Classification Numbers: C62, H55.     

Social security and intergenerational equity

This paper considers the implications of social security for intergenerational equity. It shows that a balanced-budget unfunded system can be optimal even in a dynamically efficient economy without uncertainty and externalities. The relevant criteria for the optimality of the public transfer program are equity among generations and time consistency. The scheme can survive adverse shocks if the well-being of the elderly at each point in time is sufficiently valued.     

完善我国分部报告准则内容探析

随着我国经济的不断发展，分部报告的作用日益重要，对于分部信息的披露规范也越来越重要，因此有必要对分部报告准则进行研究，以完善分部信息的披露，保证经济的健康、有效运行。     

Change in value relevance of quarterly foreign sales data of U.S. multinational corporations after adopting SFAS 131

This paper investigates the change in value relevance of quarterly foreign sales data of U.S.-based multinational enterprises after adopting Statement of Financial Accounting Standards No. 131 (SFAS 131). First, I examine whether the interim foreign sales data of all sample firms are valued at a higher rate by equity investors after the firms adopt SFAS 131. My empirical findings indicate that for all sample firms the value relevance of quarterly foreign sales data increases after the firms adopt SFAS 131. I then examine whether the valuation consequence of firms that change their geographic segment definition after they adopt SFAS 131—segment change firms—changes after those firms adopt SFAS 131. Based on the empirical results, I conclude that quarterly foreign sales data of segment change firms are priced at a relatively higher rate after SFAS 131 is adopted.

Social inequalities in injury risk in Wales,U.K.

Road traffic accident data in Nigeria generally lack exact coordinate information. Accident analysis is, therefore, restricted to aggregate data on trends, magnitude and temporal dimensions. This article addresses the road accident problem in Jos between 1995 and 1999 through a road profiling approach. Results show that four gateway routes, seven multilane roadways (including two gateway routes) and seven road intersections accounted for 84% of all traffic accidents, 84% of injured casualties and 88% of fatalities. This approach allows for quantification of impacts of controlling for accidents by deliberate profiling of roads for close monitoring and policing. For example, reducing accident counts and fatalities by 50% each on gateway routes will amount to ～35 and 40% reduction in accident and fatality counts, respectively. Countermeasures must consider these roadways and intersections as important inputs in their accidents and casualty reduction targets.     

Welfare Effects of Capital Taxation in a Small Open Economy

In a small open economy, the welfare effect of capital taxation depends on the allocation of the tax revenue as well as the tax system. If tax revenues are used to finance debt or government spending, an increase in either residential or territorial capital taxation will reduce the welfare of the representative individual. If tax revenues are transferred intergenerationally, an increase in the residential capital tax rate will increase the steady-state welfare when the after-tax interest rate is greater than the growth rate. If the revenue is rebated to the tax payer, an introduction of territorial capital taxation may increase welfare when the growth rate is relatively high. In the case where either the revenue from residential capital taxation is rebated to the tax payer or the revenue from territorial capital taxation is transferred intergenerationally, the welfare-maximizing tax rate appears to be zero.     

Indeterminacy of equilibrium in stochastic OLG models

Summary. This paper studies the equilibria of a stochastic OLG exchange economies consisting of identical agents living for two periods, and having the opportunity to trade a single infinitely-lived asset in constant supply. The agents have uncertain endowments and the stochastic process determining the endowments is Markovian. For such economies, the literature has focused on studying strongly stationary equilibria in which quantities and prices are functions of the exogenous states of nature which describe the uncertainty: such equilibria are generalizations of deterministic steady states, and this paper investigates if they have the same special status as asymptotic limits of other equilibrium paths. The difficulty in extending the analysis of equilibria beyond the class of strongly stationary equilibria comes from the presence of indeterminacy: we propose a procedure for overcoming this difficulty which can be decomposed into two steps. First backward induction arguments are used to restrict the domain of possible prices; then if some indeterminacy is left, expectation functions are introduced to make the forward equilibrium equations determinate. The properties of the resulting trajectories, in particular their asymptotic properties, can then be studied. For the class of models that we study this procedure provides a justification for focusing on strongly stationary equilibria. For the model with positive dividends (equity or land) the justification is complete, since we show that the strongly stationary equilibrium is the unique equilibrium. For the model with zero dividends (money) there is a continuum of self-fulfilling expectation functions resulting in a continuum of equilibrium paths starting from any admissible initial condition: under conditions given in the paper, these equilibrium paths converge almost surely to one of the strongly stationary equilibria-either autarchy or the stochastic analogue of the Golden Rule. Received: November 19, 2001; revised version: March 22, 2002 RID="*" ID="*" We are grateful for the stimulating environment and research support provided by the Cowles Foundation at Yale University during the Fall 2000 when this paper was first conceived. We are also grateful to the participants of the SITE Workshop at Stanford University and the Incomplete Markets Workshop at SUNY Stony Brook during the summer 2001 for helpful discussions. Correspondence to: M. Magill     

DL/I技术浅析

本文针对ＩＢＭ公司ＤＬ／Ｉ数据库的数据模式、程序调用、出错信息等方面,详细论述其定义和格式,以及程序调用的一些技巧。     

Intensive Board Monitoring,Investor Protection and Segment Disclosure Quality: Evidence from EU

Abstract

This study examined the association between intensive board monitoring (IBM) and segment disclosure quality (SDQ). It also investigated whether this association can be moderated by firm's home country investor protection (IP) level. Based on a panel of 271 non-financial European Union (EU) listed corporations covering the 2007–2012 period, this study estimated two multiple regression models including industry and year fixed effects. We found evidence that the segment disclosure quality is higher when a majority of outside directors serve on monitoring committees. We, also, found that the positive association between IBM and SDQ is more pronounced for firms in a weak IP environment and less pronounced for firms in a strong IP environment. Thus, we provided evidence in favor of a substitutive relationship between IBM and IP level with respect to their association with SDQ. Our findings are evidenced by several robustness tests.