从多哈回合中止看多边贸易谈判机制的效率

本文主要探讨了多边贸易谈判机制存在的必要性、经济学本质,及其顺利运行的前提条件。     

关于我国推行住房抵押贷款证券化的对策分析

住房抵押贷款证券化是我国未来住房金融发展的必然方向，为了在我国顺利推行住房抵押贷款证券化。应加强培育住房抵押贷款一级市场与投资者，完善相关的法律法规，完善信用评级制度，完善相关的会计和税收制度等。     

Market structure and corporate charitable donations: some Canadian evidence for 1976 and 1981

The business of business, not charity.

Say eleemosynary its more confusing.

Whatever, as long as we don't given 'em any cash.

Harv Antione, ‘The Buzz Words of Entrepreneurship’

in Apocryphal Northern Tales

This paper investigates the general determinants of corporate charitable donations in Canada and, in particular, the impact of imperfectly-competitive market structure. We utilize a profit-maximizing model and assume that charitable donations occur only if, by performing an advertising/public relations function, they increase revenue; or if, by acting as a fringe benefit, they result in a reduction in wage costs. In this context, because only firms in imperfect markets generate the rents from which donations can be made, we anticipate a positive relationship between donations and a measure of imperfect competition (concentration). The data is a cross-section sample of 38, 3- and 4-digit SIC manufacturing industries pooled for 1976 and 1981. The major findings are that: the results are generally compatible with the predictions of the model; concentration is a significant determinant of donations although non-linear; the cost of giving (the tax rate) is appropriately positive; and there are significant negative relationships for measures of foreign ownership and wage rates.     

Money substitutes and monetary policy in the U.K., 1922–1974

In the U.K., following the publication of the Radcliffe Report, it was widely believed that monetary policy was impotent because any attempt to make use of monetary policy would be fully offset by perfect money substitutes which were not controlled by the monetary authorities. This paper tests whether such substitutes exist. The technique is to fit a money demand function to a long run of data allowing the interest elasticity to vary from observation to observation, and using a procedure which permits infinite values of the elasticity. It was found that, although the elasticity does vary, no observation was consistent with the Radcliffe view. This was true for both interest rates tried, and the function proved very stable when tested. We conclude that the Radcliffe Hypothesis can be decisively rejected.     

Dynamic Seemingly Unrelated Cointegrating Regressions

We propose the parametric Dynamic Seemingly Unrelated Regression (DSUR) estimator for simultaneous estimation of multiple cointegrating regressions. DSUR is efficient when the equilibrium errors are correlated across equations and is applicable for panel cointegration estimation in environments where the cross section is small relative to the available time series. We study the asymptotic and small sample properties of the DSUR estimator for both heterogeneous and homogeneous cointegrating vectors. We then apply the method to analyse two long-standing problems in international economics. Our first application revisits the estimation of long-run correlations between national investment and national saving. Our second application revisits the question of whether the forward exchange rate is an unbiased predictor of the future spot rate.     

Incomplete regulation, market competition and collusion

Regulators often do not regulate all firms competing in a given sector. Due to product substitutability, unregulated competitors have incentives to bribe regulated firms to have them overstate their costs and produce less, thereby softening competition. The best collusion-proof contract entails distortions both for inefficient and efficient regulated firms (distortion ‘at the top’). But a contract inducing active collusion may do better by allowing the regulator to ‘team up’ with the regulated firm to indirectly tax its competitor. The best such contract is characterized. It is such that the unregulated firm pays the regulated one to have it truthfully reveals its inefficiency. We finally compare those contracts.     

国内外天然气管道事故分析

对近年来国内外天然气管道事故数据进行了分析,为我国天然气管道的事故分析、事故诊断与预测、应急处理、风险管理等提供了参考.指出,国内外天然气管道失效的主要原因为腐蚀、外部影响和材料缺陷.预防管道事故,应从提高设计质量、强化运行管理入手,同时采用先进的施工技术和质检标准.     

山东半岛城市群空间结构分析及其优化研究

在介绍研究区域背景的基础上,运用分形模型和偏离-份额(shift-share)模型对山东半岛城市群的等级规模、空间布局和职能结构进行分析.结果表明:山东半岛城市群的等级规模和空间结构呈现分形、有序的特征,具有结构演化自组织优化的趋势,但由于受交通和地貌因素的影响,山东半岛城市群在等级规模上呈现规模扩张退化、结构分化、集聚辐射弱化态势;而在空间上呈现大分散、小集中,以及沿交通线和海岸线分布的轴线空间格局.职能上存在产业效益、竞争力城际差异大、产业内部结构性矛盾突出、产业集聚度有待提高等问题.