Natural implementation in public goods economies

In this paper, we identify necessary and sufficient conditions for social choice correspondences to be Nash implemented by “natural” mechanisms in economies with arbitrary numbers of private and public goods. We find that when there exist only one public good and an arbitrary number of private goods, the Lindahl correspondence is implementable by a natural quantity mechanism in which each agent announces his own consumption bundle of private goods and input vectors for public goods. However, regardless of the numbers of private and public goods, the Pareto correspondence is not implementable even by any natural price ⁿ -quantity mechanism in which each agent reports a price vector of private goods and all agents’ personalized price vectors of public goods, in addition to his own consumption bundle of private goods and input vectors for public goods.     

CREDIBLE SIGNALS OF THE RELEASE OF NEW VERSIONS

Prices can credibly signal whether a durable‐goods monopolist will offer an improved good in the future. When the future release of a new version is private information, a monopoly seller will reveal a failure to develop and market a new version with a lower price than he or she would charge in full information. A firm would be willing to pay more to innovate when consumers are uncertain than if they are informed ex ante because a failure to innovate is punished by a low equilibrium price. Consumers' uncertainty about innovation intensifies an unsuccessful innovator's Coasian problem and increases consumer welfare. (JEL D82, L12, L15)     

MONEY AND PRODUCT QUALITY UNDER ASYMMETRIC INFORMATION

This article examines the effects of money on product quality, as well as the price pattern of heterogeneous quality goods, in a search‐theoretical monetary model with divisible money and divisible commodities. We establish the existence and uniqueness/multiplicity of monetary equilibrium in several different cases. The steady‐state equilibrium of our model displays several properties that are absent or distinct from those of previous studies. In particular, we find that under egalitarian bargaining, the Friedman rule cannot achieve socially efficient allocation due to asymmetric information. We find that the price of informed high‐quality goods is higher than the price of uninformed quality goods. We also find that an increase in inflation can improve product quality. (JEL E40)     

MULTIPRODUCT PRICING IN MAJOR LEAGUE BASEBALL: A PRINCIPAL COMPONENTS ANALYSIS

The empirical analysis of multiproduct pricing lacks clear theoretical guidance and appropriate data, which often render traditional regression‐based analyses impractical. Under these circumstances the factors underlying price variation can be inferred using a new methodology based on principal components. Analyzing ticket, parking, and concession pricing in Major League Baseball with this methodology demonstrates that general demand shifts are the primary factor, but explain only half of overall price variation. Also important are price interactions deriving from demand interrelationships between goods and attempts to maximize the capture of consumer surplus in the presence of heterogeneous demand. (JEL D40, L11, L13)     

Finite decentralization in a Tiebout economy with crowding types

We study a model with local public goods in which agents' crowding effects are formally distinguished from their taste types. It has been shown that the core of such an economy can be decentralized with anonymous admission prices (which are closely related to cost share prices). Unfortunately, such a price system allows for an arbitrary relationship between the public goods level in a given jurisdiction and the cost to an agent for joining. Formally, this means that admission prices are infinite dimensional. Attempts to decentralize the core with finite price systems such as Lindahl prices suggest that this is possible only under fairly restrictive conditions. In this paper, we introduce a new type of price system called finite cost shares. This system has strictly larger dimension than Lindahl prices but, in contrast to general cost share prices, is finite. We show that this allows for decentralization of the core under more general conditions than are possible with Lindahl prices. Received: 18 January 2000/Accepted: 21 January 2002 The authors would like to thank two anonymous referees for their helpful comments.     

A CLEAR AND PRESENT MINORITY: HETEROGENEITY IN THE SOURCE OF ENDOWMENTS AND THE PROVISION OF PUBLIC GOODS

We conduct public goods experiments in which participant groups are heterogeneous in regards to the source of their endowments. We find that this dimension of heterogeneity significantly reduces contributions to the public good, yielding strong support for the Nash prediction of minimal contributions. These minimal contributions arise in environments in which there exists a clear minority in terms of source of endowments. We discuss these results in light of current research on the influence of heterogeneous populations on public goods provision and redistributive policies. (JEL C9, D63, H4, J15)     

QUALITY DIFFERENCES,THIRD‐DEGREE PRICE DISCRIMINATION,AND WELFARE

We propose a model with two markets to analyze the welfare implications of price discrimination with quality differences. In each market a local firm that operates in that market only competes against a global firm that operates in both markets. Local firms produce higher‐quality goods than the global firm. If the quality levels of the local firms' products are the same, price discrimination is never welfare‐decreasing. If they differ, discrimination is welfare‐increasing if quantity increases. Because of a positive allocation effect of price discrimination, there are parameter values such that welfare increases while total output decreases with price discrimination. (JEL D43, D60)     

THE QUANTITATIVE IMPORTANCE OF OPENNESS IN DEVELOPMENT

This paper deals with a classic development question: how can the process of economic development—transition from stagnation in a traditional technology to industrialization and prosperity with a modern technology—be accelerated? Lewis (1954) and Rostow (1956) argue that the pace of industrialization is limited by the rate of capital formation which in turn is limited by the savings rate of workers close to subsistence. We argue that access to capital goods in the world market can be quantitatively important in speeding up the transition. We develop a parsimonious open‐economy model where traditional and modern technologies coexist (a dual economy in the sense of Lewis 1954). We show that a decline in the world price of capital goods in an open economy increases the rate of capital formation and speeds up the pace of industrialization relative to a closed economy that lacks access to cheaper capital goods. In the long run, the investment rate in the open economy is twice as high as in the closed economy and the per capita income is 23% higher. (JEL O11, F43, O14)     

THE EXTENT OF THE MARKET AND INTEGRATION THROUGH FACTOR MARKETS: EVIDENCE FROM WHOLESALE ELECTRICITY

We document the influence of factor markets in determining the extent of the market, appealing to the Mundell hypothesis that trade in goods and factor markets are substitutes. We confirm this influence using the U.S. wholesale market for electric power. Although the Eastern, Western, and Texas regions cannot trade electricity, inputs such as natural gas move freely across these regions. Through a set of price transmission ratios, and a supply model for natural gas, we find regional electricity shocks do propagate across regions. We conclude output markets institutionally in autarky achieve modest degrees of economic integration through factor markets. (JEL C32, L94, Q41)     

Identical preferences lower bound solution and consistency in economies with indivisible goods

We consider the problem of allocating a finite set of indivisible goods and a single infinitely divisible good among a group of agents, and we study a solution, called the Identical Preferences Lower Bound solution, in the presence of consistency properties. This solution is not consistent. We prove that its maximal consistent subsolution is the No-envy solution. Our main result is that the minimal consistent extension of the intersection of the Identical Preferences Lower Bound solution with the Pareto solution is the Pareto solution. This result remains true in the restricted domain when all the indivisible goods are identical, but not when there is a unique indivisible good.This paper was developed during my stay at Rochester University in the summer of 1992. I would like to express my special thanks to Professor William Thomson for all his help and advice. Iam also grateful to my supervisor Luis Corchón, to Koichi Tadenuma and to the anonymous referees for their helpful comments. The remaining errors are my exclusive responsibility. Financial support from the DGCYT under project PB 91-0756 and the Instituto Valenciano de Investigaciones Económicas are gratefully acknowledged.     

OPTIMAL AGRICULTURAL POLICY: SMALL GAINS?

Agricultural subsidies distort the allocation of workers across sectors, and may keep too many workers in agriculture. We use a general equilibrium model with endogenous sector selection calibrated to the U.S. economy to assess the efficiency loss and redistribution effect of the current transfer system. Eliminating current subsidies has two main effects: (1) small efficiency gains (around 4% of agricultural output) and (2) a corresponding rise in the price of agricultural goods. We find high-productivity farmers to be the main beneficiaries of the existing policies, although some of the transfers generate a redistribution effect toward low-productivity agents, which extends beyond the agricultural sector. (JEL H21, H25, H30, J24, J31, J43)     

PRICING ANOMALIES IN THE MARKET FOR DIAMONDS: EVIDENCE OF CONFORMIST BEHAVIOR

Some goods are consumed not just for their intrinsic utility but also for the impression their consumption has on others. We analyze the market for such a commodity—diamonds. We collect data on price and other attributes from the inventories of three large online retailers of diamonds. We find that people are willing to pay premiums upward of 18% for a diamond that is one‐half carat rather than slightly less than a half carat and between 5% and 10% for a one‐carat rather than a slightly less than one‐carat stone. Since a major portion of larger gem‐quality diamonds are used for engagement rings, such an outcome is consistent with Bernheim's model of conformism, where individuals try to conform to a single standard of behavior that is often established at a focal point. In this case, prospective grooms signal their desirability as a mate by the size of the diamond engagement ring they give their fiancées. (JEL A1, D4)     

HIERARCHICAL TRADE

Commodity trading is typically organized hierarchically: Large‐scale trade takes place at the global price system while individuals trade at local price systems within their countries. Agencies or trading houses establish the link between these different market places. In this paper, we devise a framework to study this type of hierarchical trade. We identify the free trade and the autarky equilibrium as polar cases. We show that no other two‐stage market equilibria exist if the commodity space is two‐dimensional. An example demonstrates that other, so‐called intermediate equilibria exist for three‐dimensional commodity spaces. We then provide an explicit construction of special classes of intermediate equilibria. Moreover, we study the consequences when some countries control the agency that organizes trade at the global level and we analyze the role of international goods arbitrage. Finally, we show that profit‐maximizing agencies may not promote free trade outcomes. (JEL D43, D50, F10)     

ENTRY AND EXIT,PRODUCT VARIETY,AND THE BUSINESS CYCLE

We study the stochastic behavior of a dynamic general equilibrium model with monopolistic competition. Each seller sells his product in the consumption goods as well as the investment goods market and has market power in both. Consumers derive utility from a constant elasticity of substitution (CES) aggregate of all the consumption goods and augment their capital stock by a CES aggregate of all the investment goods. We analyze the equilibrium of this economy allowing for an endogenous determination of the number of firms and therefore of products. The principal effect we wish to highlight is the endogenous propagation and magnification of technology and preference disturbances through product space variations. (JEL E32, D43, L16)     

MINIMUM LEVELS AND FRAMING IN PUBLIC GOOD PROVISION

Using a laboratory experiment in the field, we examine how the framing of a social dilemma, give to or take from a public good, interacts with a policy intervention that enforces a minimum contribution level to the public good. We find significantly higher cooperation in the give frame than in the take frame in our standard public goods experiment. When a minimum contribution level is introduced, contributions are crowded out in the give frame but crowded in in the take frame. Our results show the importance of choosing the frame when making policy recommendations. (JEL C91, H41)     

GOOD GRAPES AND BAD LOBSTERS: APPLYING THE ALCHIAN AND ALLEN THEOREM

We consider the well-known theorem of Alchian and Allen that adding a per unit charge to the price of two substitute goods increases the relative consumption of the higher price good. The current literature misspecifies the conditions under which the theorem holds. When applying the theorem the fixed cost should be applied on a per unit basis, rather than in terms of an entry fee for consumption. We state the necessary conditions for the theorem to hold when the consumers are shipped to the goods.     

Alternative measures of benefit for nonmarket goods which are substitutes or complements for market goods

Nonmarket goods include quality aspects of market goods and public goods which may be substitutes or complements for private goods. Traditional methods of measuring benefits of exogenous changes in nonmarket goods are based on Marshallian demand: change in spending on market goods or change in consumer surplus. More recently, willingness to pay and accept have been used as welfare measures. This paper defines the relationships among alternative measures of welfare for perfect substitutes, imperfect substitutes, and complements. Examples are given to demonstrate how to obtain exact measures from systems of market good demand equations.Thanks also to the very helpful anonymous reviewers for Social Choice and Welfare.Thanks to Professor Deb Brown, Purdue University, for her encouragement and help over the period in which this paper was written.     

Characterizing Vickrey allocation rule by anonymity

We consider the problem of allocating finitely many units of an indivisible good among a group of agents when each agent receives at most one unit of the good and pays a non-negative price. For example, imagine that a government allocates a fixed number of licenses to private firms, or that it distributes equally divided lands to households. Anonymity in welfare is a condition of impartiality in the sense that it requires allocation rules to treat agents equally in welfare terms from the viewpoint of agents who are ignorant of their own valuations or identities. We show that the Vickrey allocation rule is the unique allocation rule satisfying strategy-proofness, anonymity in welfare, and individual rationality.     

The willingness to pay–willingness to accept gap revisited: The role of emotions and moral satisfaction

While many earlier studies have found that people’s maximum willingness to pay for having a good is often substantially lower than their minimum willingness to accept not having it, more recent experimental evidence suggests that this discrepancy vanishes for standard consumption goods when an incentive-compatible design without misconceptions is used. This paper hypothesises that there is nevertheless a discrepancy for goods with a perceived moral character, such as contributions to a good cause, and moreover that the reason for this discrepancy can largely be explained by differences in emotions and moral perceptions. The results from a real-money dichotomous-choice experiment, combined with measurements of emotions and morality, are consistent with these hypotheses.     

ADVERTISING AS A PRIVATELY SUPPLIED PUBLIC GOOD

In this paper we take a view of advertising and certain other nonprice competition as public goods. This leads to a new fundamental justification of the zero price distribution of advertising, coupled with a mark-up of the advertised good as a disguised form of price discrimination which approximates that required for efficient pricing of a public good. Further, we present a numerical counterexample wherein the commonly-observed zero price distribution of advertising is shown to lead to higher consumer and seller welfare than its separate sales at cost.