Corrigendum to “When is efficiency separable from distribution in the provision of club goods?” [Journal of Economic Theory 90 (2000) 204-221]

This note corrects a slip in Fraser's (J. Econ. Theory 90 (2000) 204-221) treatment of the necessary condition for partial separation of efficiency from distribution in providing a club good. His corrected Theorem 1 shows that many families of utility function can generate partial (and total) separation, thereby considerably extending the scope of his analysis.     

Public versus private risk sharing

Can public income insurance through progressive income taxation improve the allocation of risk in an economy where private risk sharing is incomplete? The answer depends crucially on the fundamental friction that limits private risk sharing in the first place. If risk sharing is limited because insurance markets are missing for model-exogenous reasons (as in Bewley (1986) [8]) publicly provided risk sharing improves on the allocation of risk. If instead private insurance markets exist but their use is limited by limited enforcement (as in Kehoe and Levine (1993) [23]) then the provision of public insurance interacts with equilibrium private insurance, as, by providing risk sharing, the government affects the value of exclusion from private insurance markets and thus the enforcement mechanism of these contracts. We characterize consumption allocations in an economy with limited enforcement and a continuum of agents facing plausible income risk and tax systems with various degrees of progressivity (public risk sharing). We provide conditions under which more publicly provided insurance actually reduces total insurance for agents (excess crowding-out), or under which more public insurance increases total insurance (partial crowding-out).     

Terrorist backlash, terrorism mitigation, and policy delegation

This paper presents a three-stage proactive game involving terrorists, elected policymakers, and voters. In each of two targeted countries, a representative voter chooses an elected policymaker, charged with deciding proactive countermeasures to ameliorate a transnational terrorist threat. Two primary considerations drive the voters' strategic choice: free riding on the other countries' countermeasures and limiting a reprisal terrorist attack. The resulting low proactive countermeasures benefit the terrorists, whose attacks successfully exploit voters' strategic actions. This finding stems from a delegation problem where leadership by voters has a detrimental consequence on the well-being of targeted countries. Domestic politics add another layer of concern when addressing a common terrorist threat.     

Externalities and fundamental nonconvexities: A reconciliation of approaches to general equilibrium externality modeling and implications for decentralization

Starrett (1972) [33] and Boyd and Conley (1997) [7] approaches to externality modeling are unified by distinguishing between producible and nonproducible public commodities. Nonconvexities are associated with detrimental producible public commodities but not with nonproducible public commodities in Boyd and Conley (1997) [7]. Disposability properties (costly or costless) imply that producible public commodities are either by-products (e.g., pollution) or joint-products (e.g., national defense). Markets fail for both beneficial and detrimental by-products. Nonconvexities imply that price-based equilibria, e.g., Pigovian tax equilibrium, may not be Pareto-efficient. Foley's (1967, 1970) [17] and [18] “public competitive equilibrium” combines price and quantity signals with a unanimity criterion and restores the equivalence between equilibrium and efficiency.     

A Note on Public Input Specifications

Public or fiscal policy is sometimes concerned with the provision of some infrastructure. This paper deals with the specification of such infrastructures as public inputs. Among other things, and in contrast to relevant literature, it is shown that there is no identity between various public inputs concepts. Thus, the results help to avoid misspecifications and may contribute to better public policy designs concerning the provision of infrastructures.     

The strategy-proof provision of public goods under congestion and crowding preferences

We examine the strategy-proof provision of excludable public goods when agents care about the number of other consumers. We show that strategy-proof and efficient social choice functions satisfying an outsider independence condition must always assign a fixed number of consumers, regardless of individual desires to participate. A hierarchical rule selects participants and a generalized median rule selects the level of the public good. Under heterogeneity in agents’ views on the optimal number of consumers, strategy-proof, efficient, and outsider independent social choice functions are much more limited and in an important case must be dictatorial.     

Poverty, political freedom, and the roots of terrorism in developing countries: An empirical assessment

We find that political freedom has a significant and non-linear effect on domestic terrorism, but has no statistically significant effect on transnational terrorism. Geography and fractionalization limit a country’s ability to curb terrorism, while strong legal institutions deter terrorism.     

Property taxes and dynamic efficiency: A correction

According to Kim and Lee (1997), property taxes as opposed to capital gain taxes and taxes on rent endanger dynamic efficiency. The present paper shows that the choice of the tax base is immaterial. What counts is whether the taxes eliminate the after-tax rent. Empirical evidence suggests that this is not the case.     

Growth effects of government expenditure and taxation in rich countries: A reply

Agell et al. (2005) criticise our earlier findings (Fölster and Henrekson 2001) of a robust negative relationship between government size and economic growth for an extended sample of rich countries. In this short paper it is argued that their critique is unfounded. Most importantly, the critique does not deal with the main result of the original study, namely that the most complete specifications for assessing the relationship between government expenditure and growth in rich countries are robust even according to stringent extreme bounds criteria.     

Social polarization, fiscal instability and growth

We present a dynamic model of fiscal policy in a simple growth framework where social polarization (of preferences) plays a central role in the evolution of fiscal instability and growth collapse. In a highly polarized society, a deficit occurs endogenously, fiscal spending path becomes more volatile, output collapses, and economic growth rate is reduced along the transition path to a new lower level of output. One novel feature is that the size of fiscal deficit, the magnitude of fiscal volatility, and the size of reduction in output and growth rate are explicitly shown to be increasing functions of the degree of social polarization. This is because of the positive relationship between the polarization of preferences and the incentive for policymakers (or socio-economic groups) to overexploit the government resources in a common pool setting (polarization effect). Thereby, we offer a fiscal instability channel that negatively links social polarization and growth, which is an alternative yet distinct explanation for the empirical finding that social polarization is harmful to growth. Moreover, we fully distinguish the incentive to engage in such short-term policies under political uncertainty from that under polarization. Polarization and political uncertainty are shown to be distinct yet critical to the dynamic coordination failure in the common pool setting.     

Tax competition in federations revisited

We extend Keen and Kotsogiannis (2002, 2004) by considering all-purpose public goods that are beneficial to both producers and consumers. Horizontal externality (resp. vertical externality) exerted by tax competition will not necessarily lead to inefficient outcomes.     

Global stability condition on the plane: A general law of demand

It is well known that global stability of competitive equilibrium obtains only under quite stringent restrictions. This paper identifies a set of restrictions which may be interpreted as a very weak form of the so-called Law of Demand and shows how this may imply global stability for motion on the plane. It is also of some interest that this condition is satisfied by a perturbed version of the celebrated Scarf example which does not satisfy existing conditions for global stability.     

Coordinating development: Can income-based incentive schemes eliminate Pareto inferior equilibria?

Individuals' inability to coordinate investment may significantly constrain economic development. In this paper we study a simple investment game characterized by multiple equilibria and ask whether an income-based incentive scheme can uniquely implement the high-investment outcome. A general property of this game is the presence of a crossover-investment point at which an individual's incomes from investment and non-investment are equal. We show that arbitrarily small errors in the government's knowledge of this crossover point can prevent unique implementation of the high-investment outcome. We conclude that informational requirements are likely to severely limit a government's ability to use income-based incentive schemes as a coordination device.     

EFFICIENT MIXED CLUBS: NONLINEAR-PRICING EQUILIBRIA WITH ENTREPRENEURIAL MANAGERS

Scotchmer and Wooders show that efficient clubs are homogeneous when consumers are divisible in Berglas's anonymous crowding model. However, if consumers are not divisible or if clubs have multiple facilities with economies of scope, mixed clubs are efficient. In such a model, we consider clubs with multiple membership policies for different types of consumers, and show the existence and efficiency of equilibrium with nonlinear policies. We employ entrepreneurial equilibrium, all equilibrium concept with profit-seeking entrepreneurs. Our theorem can be regarded as showing the existence of a core allocation that satisfies envy-free property in the absence of non-anonymous crowding effects.     

SOCIAL STATUS,EDUCATION AND GOVERNMENT SPENDING IN A TWO‐SECTOR MODEL OF ENDOGENOUS GROWTH*

This paper extends the relative wealth specification of status preference to the two‐sector Uzawa (1965 )– Lucas (1988 ) model and examines the effectiveness of government spending on economic growth. It is found that the desire for relative wealth‐induced social status and/or the education component of relative wealth‐induced social status are important ingredients in determining the growth rate effects of government spending. Provided that the agent is concerned with his or her relative social position, the education‐induced social status plays a more important role than the physical‐asset‐induced social status in determining the validity of public spending on growth. If individuals do not care about their education‐driven social rewards, then an increase in government spending has no effect on the balanced growth rate regardless of the presence of the physical‐asset‐induced social status. A rise in government spending reduces the long‐run growth rate if the education‐induced social status is present.     

Optimal environmental taxes and standards: Implications of the materials balance

This paper investigates the implications of the materials balance for optimal environmental policy. We find that neglecting the materials-emissions relationship - as is common in models of optimal environmental regulation - implies biases, whose sign depends on the regulatory instrument chosen. When emissions are regulated through an emission tax, the seemingly optimal tax is too high. When regulation proceeds through the use of an emission standard, the seemingly optimal standard is too lax.     

Existence of a Pareto-optimal equilibrium in nearly-stationary overlapping-generations economies

Summary In overlapping-generations models of fiat money, the existence of a Pareto-optimal equilibrium — which defines an optimal quantity of money — is more general than well-known counter-examples suggest. Those examples, having no optimal equilibrium just because there are small variations in households' tastes and endowments across generations, are not typical. On the contrary: For an open-dense, full-measure subset of smooth stationary economies and an open-dense subset of continuous stationary economies, introducing small variations in tastes and endowments across generations preserves the existence of an optimal equilibrium. Put simply, optimal equilibria generically exist for nearly-stationary economies.I thank Scott Freeman, Katsuhiko Kawai, and two referees for proofreading this text; all lead to clarifications.