Existence of a competitive equilibrium when all goods are indivisible

This paper investigates an economy where all consumption goods are indivisible at the individual level, but perfectly divisible at the overall level of the economy. In order to facilitate trading of goods, we introduce a perfectly divisible parameter that does not enter into consumer preferences — fiat money. When consumption goods are indivisible, a Walras equilibrium does not necessarily exist. We introduce the rationing equilibrium concept and prove its existence. Unlike the standard Arrow–Debreu model, fiat money can always have a strictly positive price at the rationing equilibrium. In our set up, if the initial endowment of fiat money is dispersed, then a rationing equilibrium is a Walras equilibrium. This result implies the existence of a dividend equilibrium or a Walras equilibrium with slack.     

Core equivalence and welfare properties without divisible goods

We study an economy where all goods entering preferences or production processes are indivisible. Fiat money not entering consumers’ preferences is an additional perfectly divisible parameter. We establish a First and Second Welfare Theorem and a core equivalence result for the rationing equilibrium concept introduced in Florig and Rivera (2005a). The rationing equilibrium can be considered as a natural extension of the Walrasian notion when all goods are indivisible at the individual level but perfectly divisible at the level of the entire economy.     

Price Scissors, Rationing, and Coercion: An Extended Framework for Understanding Primitive Socialist Accumulation

This paper re-examines the current debate on price scissors based on an extended framework, in which the production and trade of industrial consumer goods within the rural sector is incorporated. It confirms that in the economy considered by Preobrazhensky, consumer rationing, especially of industrial goods in rural areas, is prevalent. Under the binding rationing the price response of agricultural surplus cannot be determined theoretically. This finding reopens the field for empirical investigation. The paper identifies the conditions that guarantee the validity of Preobrazhenshy's two propositions: (1) the state can increase its capital accumulation by moving the terms of trade against peasants, and (2) the urban workers need not necessarily suffer therefrom. It demonstrates that in order to ensure the validity of these two propositions, besides the need to assume positive price response of agricultural surplus and of labour force input, food rationing in urban areas and the rationing of major industrial consumer goods in rural areas are essentially required. As a consequence, the paper suggests that the price-scissors type of regulation would induce the state's coercion on peasants to collect their food surplus. This revised version was published online in July 2006 with corrections to the Cover Date.     

On the satisfaction of peak demand in the certainty case

The concept of full-capacity flat-rate equilibrium is explored for a version of the Arrow-Debreu model with time-differentiated goods and production subject to a capacity constraint. The corresponding equilibrium allocations are shown to be inefficient in general. It is also shown that rationing peak demand is Pareto superior to non-rationing.     

The Substitution Theorem in Urban Consumer Theory

This paper presents two nonparametric approaches to urban household location theory. For each model two sets of own price substitution theorems are presented, one for goods whose prices vary spatially and one for goods whose prices do not vary spatially in the market area. The usual substitution theorem derived in nonspatial demand theory is seen to hold for goods whose prices do not vary spatially. Goods whose prices vary spatially, however, reveal a significant departure from standard demand theory in that the substitution theorem is shown to hold unambiguously only for "parallel" shifts in spatial price surfaces. Further, the results are robust, extending to consumers in nonmonocentric urban areas, regardless of consumer tastes for travel distance or labor/leisure choice complications.     

信贷配给视角下中小企业信用担保理论基础研究

本文在信贷配给视角下来研究中小企业信用担保的理论基础,首先引入信贷配给理论,然后分析信贷配给与中小企业融资困境的关系,最后建立信贷配给下中小企业信用担保理论基础的考察维度。     

The value of scarce water: Measuring the inefficiency of municipal regulations

Rather than allowing urban water prices to reflect scarcity rents during periods of drought-induced excess demand, policy makers have mandated command-and-control approaches, primarily rationing the use of water outdoors. While such policies are ubiquitous and likely inefficient, economists have not had access to sufficient data to estimate their economic impact. Using unique panel data on residential end-uses of water in 11 North American cities, we examine the welfare implications of urban water rationing in response to drought. Using estimates of expected marginal prices that vary both across and within markets, we estimate price elasticities specific to indoor and outdoor water use. Our results suggest that current policies do target water uses that households, themselves, are most willing to forgo. Nevertheless, we find that rationing outdoor water in cities has costly welfare implications, primarily due to household heterogeneity in willingness-to-pay for scarce water. We find that replacing rationing policies with a market-clearing “drought price” would result in welfare gains of more than 29% of what households in the sample spend each year on water.     

Mexican integration into the North American free trade zone

Mexican integration into the North American free trade zone is modeled as removing the tariff on Mexican imports of manufacturing goods. Using a theoretical model, it is shown that this increases welfare through production, consumption and employment gains. The results are derived by nesting the theory of customs unions, and the Harris-Todaro type intersectoral labor migration model into a unified framework.     

基于安全储备量的社区卫生站疫苗配给优化研究

为了确保社区卫生服务站对于儿童疫苗的安全储备量以及配给成本最低,运用存储论的经济订货批量模型对疫苗的配给进行了优化,根据基层卫生服务的宗旨,实现了特定概率下的疫苗供给,对大多数社区卫生服务站的疫苗或类似的基药配给有参考价值。     

Equilibrium in a mixed economy of arrow-debreu type

The functioning of the current NIS economies is severely affected by regulatory interferencies with supply and demand for many commodities. In particular, the presence of dual markets is characteristic for these economies. On the first market, typically the “low-price sector” of the economy, prices are fixed and the allocation of goods is determined by rationing schemes and governmental orders. On the second market, flexible prices resulting from the market mechanism coordinate demand and supply. It is allowed that any surplus of good purchased on the first market can be sold on the second market at the then prevailing market prices.     

Capital rationing

This article deals with the current state of the theory and methods of capital budgeting under conditions of capital rationing. The focus is on the need for adequate decision support for management and planners dealing with capital budgeting problems. Mention is made of some modern textbooks on capital budgeting and these are found to give scant treatment to capital rationing. A general optimisation model is used in presenting and discussing some major theoretical contributions and proposed methods of calculation in this field.     

The measurement of rationing and the treatment of structural change in the uk mortgage market

UK mortgage markets have undergone major structural changes in the past few years, resulting in mortgages no longer being rationed. The ending of rationing has implications for the specification of empirical models of housing demand. Housing models have never adequately resolved how to incorporate unobservable mortgage rationing. Conventional proxy methods are particularly unsuitable, when rationing ceases. In this paper, we propose a new way of measuring rationing directly, which incorporates regime switching. The model of rationing is extensively tested and estimates of rationing for the period 1963–1988 are provided; these may be easily incorporated into housing demand studies.     

信贷配给、银保协作与银行信贷效率改进——基于信贷效用熵的分析视角

文章从最优贷款利率与非市场出清视角分析了信贷配给的内生逻辑,建立了信贷效用熵理论,在此基础上,运用信贷效用熵理论揭示了银保协作改进商业银行信贷效率的机理,并以此为依据,设计了银保协作下商业银行信贷效率改进的科学路径.文章认为,信息不对称促使商业银行实施信贷配给,使得商业银行信贷资金的市场化出清程度较低,大量信贷资金被低效占用,导致信贷效率缺失.对此,建立银保协作机制,可以有效缓解银企之间的信息不对称性,促使商业银行信贷资金的市场化出清意愿及能力上升,从而降低信贷配给幅度,提升信贷效率.     

Savings and retail price reform in a queue-rationed economy

The paper addresses the effect on consumer saving behavior of queue rationing and of price reform in a Soviet-type economy in a lifecycle framework with overlapping generations. It is shown that consumers save less for retirement in a queue-rationed exchange economy with black markets than they would in a free-market system with the same endowments. The expectation of price reform is thus likely to cause an increase in consumer savings. In addition, an analysis is given of the effect of the increase in controlled prices on the black market prices and on the prices of unrationed goods.     

Adverse Selection with Competitive Inspection

We develop a model with heterogeneous buyers and sellers in which the sellers have private information about their goods' qualities. We show that efficient trading cannot occur without middlemen. Middlemen can provide two services: one is inspection, and the other is the sorting of buyers and sellers through the rationing of sellers and the provision of two different price schedules. The latter service permits the possibility of achieving the first best. When the first best is not attainable, there is a second best characterized by two intervals, one consisting of low-quality noninspected goods, and the other of high-quality inspected goods. We determine whether first and second best outcomes can be implemented in a market equilibrium with both zero and infinite buyer-seller search costs. First and second best outcomes are attainable under a larger set of parameter values when search costs are infinite; also, typically too much inspection occurs in a market equilibrium. Welfare may be either raised or lowered by the introduction of middlemen.     

财务经营、管理与治理:财务职能的重新解构

企业的性质可从生产或技术的组织、稀少性价值增进与调控的机制、产权联合与团队生产的载体三个层面来认识。在这三个层面上，企业活动实际上是通过不同类型的交易展开的，因而企业应视为一种交易的集约机构。相应地，企业的财务活动也是以买卖的交易、管理的交易、限额的交易而展开的，分别行使具体的财务经营职能、财务管理职能、财务治理职能，并共同地、联合地完成财务的基本职能，即配置企业拥有或控制的财务资源，这种观点可称为一职能说。     

Credit rationing and macroeconomic adjustment in Latin America

This research attempts to provide an answer to the important question of whether sovereign borrowers of developing countries are credit rationed in international capital markets. After defining the type of credit rationing to be tested an econometric technique is developed and tested with the results casting doubt on the extent of credit rationing for 12 of 13 Latin American developing countries over the sample period 1965–1988. The test is limited in that it will not detect credible threats of credit rationing followed by macroeconomic adjustments to bring about an equality of domestic investment and national savings. This form of ex ante credit rationing could still be pervasive. Nevertheless it would appear that on the whole, Latin American countries are quickly able to adjust to anticipated shocks by a combination of policies to reduce the investment-savings gap.     

The intrinsic comparative dynamics of locally differentiable feedback Nash equilibria of autonomous and exponentially discounted infinite horizon differential games

The comparative dynamics of locally differentiable feedback Nash equilibria are derived for the ubiquitous class of autonomous and exponentially discounted infinite horizon differential games. The resulting refutable implications are intrinsic to the said class of differential games, and thus form their basic, empirically testable, properties. Their relationship with extant results in the optimal control theory and the static game theory is discussed. Separability conditions are identified on the instantaneous payoff and transition functions under which the intrinsic comparative dynamics collapse, in form, to those in optimal control problems. Applications of the results to capital accumulation and sticky-price games are provided.     

A dynamic,policy oriented model of the regulated housing market: The Swedish prototype

The design and preliminary implementation of a dynamic, policy oriented model of the regulated housing market is presented. The model is developed in the context of the Swedish housing market institutions which combine nearly all features encountered in other nations. Free buying and selling by homeowners, black markets, swapping of dwellings and rationing of price controlled dwellings both by landlords and a public authority are included as explicit transaction options (with distinct costs) available to existing and newly formed households in the market. The model simulates a sequence of temporary annual equilibria which are obtained by balancing effective demands with effective supplies. Household mobility choices, landlords' selling decisions and the rationing of dwellings at fixed prices are derived from stochastic maximization resulting in multinomial or nested logit models of choice behavior. An aggregated preliminary 16-equation version is calibrated with partly real, partly guesstimated data for the Greater Stockholm region in the mid-seventies. Qualitative comparative statatics and income compensated policy simulations with this version illustrate some unintended effects of Swedish housing policy resulting from the manipulation of the income tax, an income tax dependent property tax and housing allowances. The model provides a tool whereby deregulating institutional changes which are potentially Pareto improving can be identified. If, however, current institutions such as the rationing of dwellings result in sufficiently lower transactions costs for households relative to the free market, then deregulation is not Pareto preferred.