多空间尺度普通住宅用地的合理地价研究

本文通过房价收入比、地价房价比的关系对住宅市场地价水平的合理值进行估计,用区间分析法来研究普通住宅用地的合理地价区间。考虑到区域差距、行业收入差距大,对国家级、省市级、地区级甚至细化到城市的环线和小区级别,对不同空间尺度下的中等收入家庭年收入等参数进行分析,来估计不同空间尺度下的普通住宅用地的合理地价水平。这有助于建立风险预警系统,引导房地产业向健康稳健方向发展。     

A dynamic generalization of the tobin model

The paper studies the stability and the non-neutrality of money issues of the neoclassical monetary growth theory when the liquidity preference function and the price dynamics equation are generalized in the Tobin model. Our generalization introduces Tobin's real purchasing power into the liquidity preference function, thereby allowing real balance flows to exert direct income effects. Such effects allow a number of separate cases in the price dynamics behavior, some of which lead to results that differ from the neoclassical propositions. Thus, these propositions are sensitive to the choice of a particular proxy measure of the transactions motives of the demand for money.     

Price gap anomaly in the US stock market: The whole story

This paper analyses the price gap anomaly in the US stock market (comprised of the DJI, S&P 500 and NASDAQ) covering the period 1928 to 2018. This paper aims to investigate whether or not price gaps create market inefficiencies. Price gaps occur when the current day’s opening price is different from the previous day’s closing price due orders placed before the opening of the market. Several hypotheses are tested using various statistical tests (Student’s t-test, ANOVA, Mann-Whitney test), regression analysis, and special methods, that is, the modified cumulative returns and the trading simulation approaches. We find strong evidence in favour of abnormal price movements after price gaps. We observe that during a gap day prices tend to change in the direction of the gap. A trading strategy based on this anomaly was efficient in that its results were not random, indicating that this market was not efficient. The momentum effect was found to be temporary and no evidence of seasonality in price gaps was found. Lastly, our results were also contrary to the myth that price gaps tend to get filled.     

A Political Economy Approach to the Neoclassical Gradualist Model of Transition

Abstract.  A political economy approach to the neoclassical gradualist model of transition requires the exposition of what I define the primary elements of the model, which are economic analysis, definition of a good society, speed, political structure, ideological structure and whether the initial conditions were incorporated in the model. After the identification of the primary elements of the neoclassical gradualist model the next step is to identify secondary elements, the desired changes with respect to price liberalization-stabilization, privatization, institutional structure, monetary policy and the financial system, fiscal policy, international trade and foreign aid and social policy. The analytical framework developed makes possible to understand the neoclassical gradualist model from a new and more enlightening perspective. We are better able to comprehend the complexities involved and the disagreements about the reform process. The adoption of a gradual process of transition did not only involve specifying the required policies of a successful transition but also entailed a process, a sequence by which the reforms should be introduced. As such, a process of transition consistent with the policies recommended by the neoclassical gradualists economists is developed. The conclusion reveals the inconsistencies in the model.     

Two-level national-regional planning and mathematical programming decomposition applied to spatial price equilibrium models2

This paper is concerned with computation strategies related with the quantitative analysis of only a sector of a global economy (e.g. agriculture or energy). Under a ceteris paribus condition on the environment of the sector, and within the hypothetical context of the neoclassical economic theory, it is well known a type of partial equilibrium model that can be cast mathematically into an optimization framework. We attempt here to a typical specification which considers spatially separated markets, that has been called spatial price equilibrium model and that has contained within it many classical transportation problems (one for each commodity). The model is specially suitable for mathematical programming decomposition, resulting regional sybsystems whose coupling variables are the transportation flows. We explore here this structure, discussing two decomposition algorithms with economic interpretations that suggest decentralized procedures for planning. The first—of the price coordination type—is a variant of the Dantzig-Wolfe's principle which is expected to have a low number of cycles of information flow between the master level and the sub-problems (at each cycle it is calculated a series of regional production-consumption responses to alternative prices generated by transhipment problems at the central planning level). The second algorithm specializes the Geoffrion's projection/feasible directions technique, so interpreting the problem solution within the context of a net-output target coordination.     

施工企业投标报价阶段成本控制探讨

施工企业投标报价阶段的成本控制具有全局性的控制意义,施工企业进行投标报价阶段的成本控制时应遵循全过程控制原则、效率原则、开源与节流原则和预防原则等4个原则,一方面争取报出一个富有竞争力的报价,另一方面争取能够为中标后的项目成本控制创造有利的条件。     

Input-Output Decomposition Analysis of Sectoral Price Gaps between Japan and China

Sectoral price gaps that were observed in 1990 between Japan and China are studied in this paper by using a decomposition procedure within the input-output framework. The empirical results show that Japan exhibited producer prices that were higher than those observed in China mainly because it registered higher wages that were only partially offset by higher productivity. The effects on output cost gaps of primaryinput price differences and relative productivity levels are analysed. The effects arising from the use of direct inputs as well as the indirect effects that are incorporated into the difference of intermediate-input prices are accounted for by means of an input-output decomposition technique.     

Markup Pricing and the Auto Industry: A Partial Explanation of Stagflation in an Oligopolistic Economy

A bstract . Price leadership firms and especially wage leadership unions frequently are not operating at points of maximization in the neoclassical sense, because contrived high level demand has brought low price consciousness or elasticity of demand for their commodities or services. Accordingly, they can get higher profits or wages anytime they choose to raise their price except during severe recession. If output falls as a consequence, goveniment and the central hank have stood ready to expand total spending. The contrived high demand has interacted with oligopolistic practices to obviate the distinction between elasticity for the firm and that of its industry, with empirical studies showing demand elasticity commonly not much above unity. The automobile industry is the focus of attention in this study. It appears that stable and high employment market capitalism no longer is possible, because at a minimum t requires generalized maximization behavior, which involves operation against constraining supply and demand parameters.     

A “calculus” for data envelopment analysis

DEA models are not amenable to differential arguments for extreme efficient units. Consequently, function representations of the approximating technology are not differentiable in the usual sense. Dually, this nondifferentiability is manifested by multiple optima to the Charnes et al. (Eur J Oper Res 2:429–444, 1978) DEA problem. This paper shows how a “calculus” can be applied to DEA, and, in particular, how this “calculus” resolves the resulting weight choice problem uniquely. The “calculus” is based on the concept of willingness to pay and well-known results in the convex analysis literature (Rockafellar, Convex analysis, 1970) for directional derivatives and their associated superdifferentials.     

The Organization,Operation, and Outcomes of Actually Existing Markets: A Suggested Approach for Empirical Analysis

Public policies have become embedded with market‐based mechanisms to radically transform essential goods and services markets. This article proposes a framework for empirical analysis of these markets. Key theoretical propositions are distilled to 12 distinctive properties of markets. These properties foreshadow a set of questions to interrogate a market's structure, operation, participants, behaviors, rules, and price setting to generate a substantive, realistic picture of outcomes. This “analytical grid” of questions is applied to four Australian essential goods and services markets. The findings unequivocally demonstrate a very different picture of markets from that promulgated by mainstream neoclassical economics and public policies.     

The Marginalists Who Confronted Land

A bstract .   Although the neoclassical turn in economics demoted land as a factor, important economists of neoclassical thinking, from neoclassical predecessors such Hermann-Heinrich Gossen through figures such as Leon Walras, did view land as a distinct factor of production. Walras, in particular, favored the use of land rent for public revenue. This paper examines the treatment of land by several neoclassical and Austrian economists and shows how, although the neoclassical school today has managed to bury land, some of the key figures who founded these schools did confront land as a factor. The burial of land is thus not inherent in neoclassical economics, but is a historical development that can be reversed.     

Suppes–Sen maximality of cyclical consumption: The neoclassical growth model

In this paper we demonstrate the existence of cyclical consumption that are maximal according to the Suppes–Sen grading principle for the Aggregative Growth Model. The paper demonstrates the optimality of cyclical consumption paths in the absence of discounting for the smooth neoclassical growth model. The process of this verification allows us to develop the theory of weakly maximal paths for a non-concave and discontinuous utility function extending previous results from Optimal Growth Theory.     

The policy environment and relative price efficiency of Egyptian private sector manufacturing: 1987/88–1995/96

We study the impact of policy and institutional constraints, and reforms undertaken to remedy them, on relative price efficiency and cost of the private manufacturing sector of Egypt. We undertake this study using a generalized cost function, which subsumes the standard neoclassical cost function as a special case. This approach allows us to assess the impact of such constraints, which include labor market, energy and financial sector ones, on relative prices and the structure of production, including factor demands, shares and cost. Our findings indicate the presence of substantial distortions in relative prices, and hence on cost, due to the policy environment. We also find improvements in relative price efficiency and cost performance as a result of policy reforms initiated to remove the constraints. Copyright © 2007 John Wiley & Sons, Ltd.     

Scarce or Abundant? The Economics of Natural Resource Availability

Most natural resources that are used in production are non‐renewable. When they become depleted they are lost for future use. Does it follow that the limited availability of natural resources will at some time in the future constrain economic growth as many environmentalists believe? While classical economists have shared the belief in limits to growth, the distinctive feature of modern neoclassical economics is its optimism about the availability of natural resources. This survey suggests that resource optimism can be summarised in four propositions. First, a rise in the price of a resource leads to a substitution of this resource with another more abundant resource and to a substitution of products that are intensive in this resource. Second, a rise in the price of a resource leads to increased recycling of the resource and to the exploration and extraction of lower quality ores. Third, man‐made capital can substitute for natural resources. Fourth, technical progress increases the efficiency of resource use and makes extraction of lower quality ores economical. In a critical analysis of these four propositions it is shown that while the conjecture that natural resources will never constrain future economic growth is logically conceivable, we do not and indeed cannot know whether it will be possible in practice to overcome any resource constraint. JEL Classification: Q20, Q30, Q40     

Testing the intertemporal labor supply model: are jobs important?

The neoclassical life-cycle labor supply model assumes that hours of work are determined by labor supply choices alone and does not include a role for employers or job distinctions. An alternative model in which employers have an interest in employee hours and changing jobs is costly may reconcile weak and conflicting evidence regarding the neoclassical model. An important implication of such an alternative is that individuals may face hours constraints on a job and thus can choose hours freely only between jobs. This paper tests several implications of the neoclassical model against this alternative model of hours determination. Using a unique panel of individuals and jobs constructed using data on women from the 1988–1992 Panel Study of Income Dynamics, I compare hours variances and labor supply elasticities measured within and between jobs. Results provide some evidence against the neoclassical model and suggest that ignoring the role of employers in determining hours of work can lead to downward bias in estimates of labor supply elasticities.     

Capital accumulation,sectoral heterogeneity and the Taylor principle

In the presence of capital accumulation the Taylor principle may not be sufficient for determinacy under reasonable parameter values. In this paper I consider a two-sector extension of the models used in the existing literature. I show that what matters for whether the Taylor principle is sufficient is the price stickiness of investment goods. Price stickiness of consumer goods on the other hand matters very little. The Taylor principle is sufficient, I find, unless there is considerable price stickiness in the investment-goods sector.     

On the role of policy interventions in structural change and economic development: The case of postwar Japan

In this paper, we study the structural change occurring in Japan's post-World War II era of rapid economic growth. We use a two-sector neoclassical growth model with government policies to analyze the evolution of the Japanese economy in this period and to assess the role of such policies. Our model is able to replicate the empirical behavior of the main macroeconomic variables. Three findings emerge from our analysis. First, neither price and investment subsidies to the agricultural sector, nor industrial policy plays a crucial role in the rapid postwar growth. Second, had there existed a labor migration barrier, the negative long-run level effect on output would have been substantial. Finally, TFP in non-agricultural sector is mostly responsible for the rapid growth of Japan in the post-war period.     

现代物流产业概念内涵和外延的理论研究

以经济学的市场划分、新兴古典经济学分工演进理论和三次产业分类理论为基础,以联合国标准产业分类法和我国《国民经济行业分类》的行业定义、划分原则和规定为标准,同时兼顾现代产业发展趋势-产业融合的特点。依据物流产品特性界定我国现代物流产业狭义和广义概念。     

On the Priority of Labor Over Capital

In his encyclical Laborem Exercens, John Paul II asserts the principle of the priority of labor over capital. The purpose of this article is to examine this principle. The conflict between labor and capital is often noted as an essential part of capitalism. There is a long tradition of assigning more significance to labor than to capital. In fact, the classical economists argued that labor determined the “value” of a good. To understand this conflict, we must first review what is capital and its role in capitalism. We will then look at John Paul II’s assertion of the principle of labor over capital, followed by a review of how economists have understood the relationship between labor and capital. Neoclassical economists dismiss labor and capital as classes, so they believe there is no conflict. We examine one neoclassical economist’s claim of a gap in the principle of the priority of labor over capital by not including finance capital in the analysis. We demonstrate that the Church’s teachings on usury answer the objections raised. We conclude with a review of the implications of the priority of labor over capital.     

养老社区服务意愿与市场需求分析——基于调查问卷的天津市个案研究

随着老龄化程度的不断加深,养老问题成为社会及学界关注的焦点。养老社区作为一种新的养老模式在国内仍处于试水阶段。采取问卷调查的形式详细分析养老社区消费群体的消费特征,包括年龄结构、收入结构、教育程度和消费理念等,深入分析对养老服务的需求程度和养老社区发展的市场前景。