The Impact of Inflation and Taxation on Tenure Choice and the Redistributive Effects of Home-Mortgage Interest Rate ReguIation*

Judy Yates (1981) notes the regressive redistributive impact of home-mortgage interest rate regulation and offers some explanations. This paper provides an alternative explanation of Yates' observations in terms of the interaction of inflation with the current tax system in Australia. A model of tenure choice in the context of inflation and taxation is developed. In explaining this phenomenon, the model also establishes the regressive nature of the tax subsidy to owner-occupation. Home-mortgage interest rate regulation is then introduced. This reinforces the redistributive bias in the housing finance market. The model is used finally to predict the impact of deregulation. It is concluded that deregulation by itself can only remove redistributive bias resulting from regulated mortgage interest rates. Reform of the tax system is required to eliminate the regressive redistributive effects of the tax subsidy to owner-occupation .     

人民币均衡汇率最优决定研究

随着经济全球化和国际贸易、国际结算的迅猛发展,汇率成为经济中一个主要变量,影响着一国的经济,被企业社会所广泛关注。均衡汇率模型的核心是分析基本经济因素变化对均衡汇率的影响,并利用它们之间存在着的系统联系来估计均衡汇率。     

Household Saving and The Rate of Interest*

This paper examines the relationship between the post-tax real interest rate and the Australian household saving ratio at the empirical level. Using alternative models of the consumption-saving decision and different estimation periods, it is shown that the post-tax real interest rate exerts a significant negative influence on the saving ratio. The estimates, therefore, imply that the fall in post-tax real interest rates during the 1970s contributed to the rise in the Australian saving ratio.     

Growth Rate and Level Effects,the Stability of the Adjustment of Capacity to Demand and the Sraffian Supermultiplier

Abstract

The paper presents a simple but complete formal version of the Sraffian supermultiplier model in which (i) growth is led by the autonomous components of demand that do not create capacity; (ii) private productive investment is an induced expenditure; and (iii) income distribution is exogenous. We show that the main results of the long-period and fully adjusted versions of the model in terms of growth rate and level effects are quite similar and therefore that such results in no way require the full adjustment of capacity to demand. We then analyze a simple set of sufficient dynamic local stability conditions that allow the long-period positions to gravitate towards the fully adjusted position in which capacity is adjusted to demand and that also provide the upper limit to demand-led growth paths. Finally, we show how some critics of the model have misinterpreted it as being supply-led and how this has led to a further confusion between the analysis of the tendency towards a constant value of the capacity-saving-determined warranted rate of growth and the proper stability analysis of the opposite process of adjusting capacity to demand (which tends to adjust the warranted rate endogenously to the growth rate of autonomous demand).     

汇率制度改革对人民币均衡汇率调整速度的影响

本文首先运用行为均衡汇率模型(BEER)和协整理论,分别测算1994年~2006年和1994年~2005年第2季度的人民币均衡汇率水平,得到相关变量的协整关系式和误差修正模型。笔者通过比较发现:2005年7月21日起,我国实行的新汇率制度可以显著加快汇率回到均衡水平的速度,调整速度从过去每季度调整0.21增加到现在的每季度调整0.35,这说明我国这次汇率制度改革是十分成功的,可以显著加快人民币汇率回到均衡水平的步伐。     

基于均衡汇率角度的人民币升值问题分析

在人民币不断升值的大背景下,关于人民币升值的合理性及临界点的探讨已成为热门话题。人民币汇率的合理性问题归根到底是实际汇率是否偏离均衡汇率的问题。在考虑中国转型经济特点和对基本经济因素进行分析后,建立了人民币均衡汇率模型,将估计出的均衡汇率与实际有效汇率进行比较分析,确认人民币确实存在一定的低估,但失调程度不大。因此对于人民币升值我们应保持在适度的范围内,而不应屈从于外在压力。在此基础上进一步提出了人民币汇率调整的方法建议。     

政府生产性支出对产出-资本比的影响——基于中国经验的研究

在国际学术界,尽管有许多经济学家在宏观经济模型框架下研究政府支出对经济增长的影响,但是很少有人从理论和实证角度研究政府支出对产出-资本比的影响,而产出-资本比的提高对发展中国家经济增长至关重要。本文利用政府提供公共物品生产函数,分析政府生产性支出的增加对税前和税后产出-资本比的影响,认为存在着一个能使产出-资本比最大化的最优政府生产性支出规模。在此基础上,本文进行的实证研究结果表明:(1)在我国国家财政生产性支出中,财政基本建设支出与产出-资本比弱正相关,而教育支出和科学研究支出与产出-资本比强正相关;(2)在我国地方财政生产性支出中,财政基本建设支出和产出-资本比弱负相关,财政教育支出和产出-资本比强正相关,而财政科学研究支出与税后产出-资本比强负相关。     

Equilibrium Selection and Stability for the Groves Ledyard Mechanism

In their seminal paper Groves and Ledyard (1976) construct a balanced incentive compatible mechanism that solves the free rider problem. In subsequent research, Bergstrom, Simon, and Titus (1983) prove that there exist numerous asymmetric equilibria in addition to the symmetric equilibrium. In the present paper, we explicitly solve for the additional equilibria and use computational experiments to examine the structure and stability of the set of equilibria of the Groves Ledyard Mechanism. We find that all of the equilibria found by Berstrom, Simon, and Titus are unstable and that for a high level of the punishment parameter these equilibria do not exist. Further, we find that there exists an additional boundary equilibrium for each of the equilibria found by Bergstrom, Simon, and Titus. The boundary equilibria are all stable.     

用均衡汇率模型估计人民币均衡汇率的研究

本文结合中国的实际情况对原Edwards均衡汇率决定模型进行了适当的修正，并在此修正模型基础上，实证测算出了自1980年代以来人民币实际均衡汇率值，并以此为理论依据分析了近20年来人民币实际有效汇率的失调情况及其主要原因。     

Divergence,Convergence, and the Gains From Trade*

This paper is about a country which has enjoyed a comparative advantage in producing some good(s) and suddenly finds its trading partners increasing their productivity in producing precisely those same goods; e.g., the US with its big lead in many kinds of manufacturing production in the 1950s and 1960s, and the rest of the world catching up in the same kinds of goods in the 1970s and 1980s. This is what the paper means by “convergence.” We show that such convergence results in an absolute loss of real income and standard of living for the original “leader” country.     

协调博弈均衡随机稳定性的研究现状与展望

协调博弈均衡选择不仅依赖于博弈支付,更重要的是依赖于参与人之间复杂的行为预期过程,它是继囚徒困境博弈模型之后又一被广泛研究的博弈类型,本文基于随机稳定性思想,结合已有的研究文献,基于实验经济学的研究结果阐述了除博弈支付之外还有许多其他影响均衡稳定性的因素,在此基础上,进一步论述了相关理论模型的研究结论及其存在的缺陷,因此,要更现实地研究协调博弈均衡的稳定性,就需要加入除博弈支付之外的其他因素,最后,文章结合实验研究及理论模型提出了协调博弈均衡稳定性研究的思路与方向,为学者们进一步研究提供了新的视角。     

Notes and Numbers on Marx's Falling Rate of Profit*

The purpose of this paper is to estimate and investigate the behaviour of Marx's rate of profit for the period 1919 to 1981. The components of this rate, viz. constant and variable capital which are consistently defined as stock variables, surplus value, organic composition of capital and rate of exploitation, are estimaed for two sub periods for the manufacturing and the corporate enterprises sectors respectively. The rate of profit does not exhibit a discernible trend movement over the period of observation. However, it is subject to pronounced pro-cyclical variations. A similar picture emerges for the organic composition of capital and the rate of exploitation. The results are critically evalualed.     

利率与经济增长率的价值平衡关系在经济运行中的表现

本文首先建立了经济增长和利息率之间价值平衡关系 ,即“Gy(经济增长率 ) =s(收入的跨时储蓄率 )·r(利息率 )” ,从理论上分析了这种价值平衡关系在实际经济运行中的表现方式 ;然后 ,论文用美国的经济增长率和联邦基金利率 ,中国的工业增加值和同业拆借利率的数据对这种关系进行了实证展示 ;最后 ,基于上面这些分析 ,作者主要在经济波动与货币政策操作等问题上提出了一些推论性结论。     

中国贸易自由化过程中汇率政策的运用与外部平衡保持

我国加入世界贸易组织之后，进一步的贸易自由化将导致市场准入程度的较大提高和各种外部冲击的显著增强。在我国经济体制改革尚未完成的情况下，入世后保持外部平衡的难度将会明显增大，经济外部失衡的潜在风险会进一步增加。为此，建立简明的理论分析框架，研究中国贸易自由化、汇率政策与外部平衡的关系．并对理论分析进行实证检验，进而探讨我国入世后的相关政策取向是十分必要的。     

实际汇率与就业--基于内生劳动力供给的跨期均衡分析

文章在个体跨期最优模型中引入内生劳动力供给,并同时假定对资本流动存在限制,以此来分析实际汇率变动对就业的影响。结果发现:只有当消费者对商品消费的相对风险规避程度比较大,即消费的跨期替代弹性比较小时,本币实际贬值才会促进就业的增加,反之贬值会使就业减少。考虑到中国当前的具体情况,消费者商品消费的相对风险规避程度会比较大,因而人民币实际贬值会有利于就业。对中国的实证分析支持了这一结论,且该实证分析通过了实际汇率的超外生性检验。鉴于从长期来看中国消费者的相对风险规避程度有下降的趋势,过分的依赖于低币值的汇率政策来解决失业问题是不可行的。     

汇率变动对中国通货膨胀影响的实证研究

汇率变动对通货膨胀的影响一直是经济学家与政策制定者关注的焦点。人民币名义有效汇率对物价水平的降低作用远低于人民币升值预期上涨的程度,而人民币升值在一定程度上强化了升值预期。因此,中央银行不能忽视人民币升值所带来的汇率升值预期效应,要抑制通货膨胀,稳定汇率,关键是稳定人民币汇率的预期。     

Financial Market Imperfections and the Impact of Exchange Rate Movements on Exports*

This paper analyzes empirically the role of financial market imperfections in the way countries’ exports react to a currency depreciation. Using quarterly data for 27 developed and developing countries over the period 1990–2005, we find that the impact of a depreciation on exports will be less positive—or even negative—for a country if: (i) firms borrow in foreign currency; (ii) they are credit constrained; (iii) they are specialized in industries that require more external capital; (iv) the magnitude of depreciation or devaluation is large. This last result emphasizes the existence of a nonlinear relationship between an exchange rate depreciation and the reaction of a country's exports when financial imperfections are observed. This offers a new explanation for the consequences of recent currency crises in middle‐income countries.     

基于资产市场方法的人民币均衡汇率模型

以汇率决定的资产市场方法为基础,通过实际汇率和外汇储备资产规模变化之间的误差修正模型（ECM）,本文对1994—2007年人民币市场均衡汇率进行估算。估算结果显示,1994年以来,人民币实际汇率与市场均衡汇率没有太大偏离。2005年7月以来,市场对人民币的升值预期随着“小步微调”的改革方式进一步强化,人民币实际汇率与市场均衡汇率的偏离水平呈现进一步扩大的趋势。作为过渡措施,应采用目标区汇率制度,将外汇储备增减幅度作为调整汇率目标区范围的一个参考标准,推动人民币汇率向均衡水平靠拢。