the second best core an economy with a single output and input is considered for the case of economies of scale in production equilibria are studied for a cooperative game of joint production in which goods are allocated by a price system the paper proposes a second best core in which allocations that are feasible for a coalition must be attainable by a price system existence is examined and properties of second best core allocations are analyzed copyright 1989 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

optimal two part tariffs in a model of discrete choice abstract in this paper we study welfare optimal two part tariffs in a model of discrete choice the determinants of the sign and magnitude of the fixed and variable tax are analysed in terms of the nature and degree of consumer heterogeneity the price sensitivities of participation probabilities and conditional demands and the nature of distributional concerns in the absence of distributional concerns the model generalises the corrected ramsey rule for the variable tax and it shows that in the absence of collection or fixed participation costs the fixed fee may be negative the conditions that determine the sign of the participation fee turn out to have an intuitive economic interpretation finally the implications of distributional concerns for the optimal fixed and variable taxes are analysed

natural resources aid and democratization a best case scenario natural resources and aid give dictators revenue to maintain power attempts are being made therefore to funnel these resources away from nondemocratic governments and toward their citizens using formal analysis and building on existing theories of democratization i analyze the effects of such institutional solutions when they function perfectly the best case scenario the models show that even with institutional safeguards these resources diminish chances for democratization in addition to their practical importance the results have an important theoretical implication the political resource curse may not be due to dictators use of these resources but simply to their existence in nondemocracies

aid and domestic resource mobilization with a focus on sub saharan africa increasing tax revenues in low income countries is essential to address future development finance requirements this is particularly important for aid recipients the focus of this paper theory shows that although there are many ways in which aid can have indirect effects on tax revenue the direct effects arise because aid and tax are alternative sources of revenue and political economy factors influence the choices made by government aid may discourage tax effort if viewed as a politically less costly source of revenue under different conditions the policies and reforms associated with aid may increase revenue through promoting growth encouraging more efficient tax structures or supporting reforms to tax administration while cross country evidence reveals no systematic pattern country studies show that aid can be associated with administrative and efficiency reforms to increase tax revenue the conclusion discusses how aid and donors can promote increasing domestic tax revenue

a panel data analysis of the fungibility of foreign aid the donor community has been increasingly concerned that development assistance intended for crucial social and economic sectors might be used directly or indirectly to fund unproductive military and other expenditures the link between foreign aid and public spending is not straightforward because some aid may be fungible this article empirically examines the impact of foreign aid on the recipient s public expenditures using cross country samples of annual observations for 1971 90 for the base sample of 14 developing countries it finds that aid is not fungible at the aggregate level and there is no associated tax relief increasing the number of countries however makes aid fungible moreover results based on the main sample indicate that aid is fungible in three out of five sectors examined developing country governments receiving earmarked concessionary loans for agriculture education and energy reduce their own resources going to these sectors and use them elsewhere only loans to the transport and communication sector are fully spent on the purposes intended by donors because most aid appears to be fungible the rate of return on a specific donor funded project tells little about the impact of that assistance a better approach may be to tie foreign aid to an overall public expenditure program that provides adequate resources to crucial sectors

foreign aid and market liberalizing reform market oriented economic policies reflected in limited economic activity by government protection of private property rights sound monetary policy outward orientation regarding trade and efficient tax and regulatory policy have been strongly linked to faster rates of economic growth foreign aid is often provided in the belief that it encourages liberalizing reforms in these areas this paper analyzes the impact of aid on market liberalizing policy reform correcting for the possible endogeneity of aid results indicate that higher aid slowed reform over the 1980 2000 period as measured by a broad index of policies disaggregating policy into five areas aid is significantly linked to slower reform in some policy areas but not in others disaggregating by decade aid s adverse impact on policy reform is much more pronounced for the 1980s than for the 1990s

optimal non linear pricing with regulatory preference over customer type abstract in this paper we characterize the pareto optimal set of non linear pricing schedules when non negative weights are assigned to each customer type our analysis first compares general non linear tariff schedules and sets of self selecting two part tariffs when there are two customer types and the cost function is linear we then derive optimal sets of two part tariffs for arbitrary numbers of customer types and general cost functions we also consider the sustainability of non linear pricing schedules under the threat of entry of rival firms

how to price discriminate when tariff size matters firms that serve a large market with many diverse consumer types use discriminatory or nonlinear pricing to extract higher revenue inducing consumers to separate by self selecting from a large number of tariff options but the extent of price discrimination must often be tempered by the high costs of devising and managing discriminatory tariffs including costs of supporting consumers in understanding and making selection from a complex menu of choices these tariff design trade offs occur in many industries where firms face many consumer types and each consumer picks the number of units to consume over time examples include wireless communication services other telecom and information technology products legal plans fitness clubs automobile clubs parking healthcare plans and many services and utilities this paper evaluates alternative ways to price discriminate while accounting for both revenues and tariff management costs the revenue maximizing menu of quantity price bundles can be very or infinitely large and hence not practical instead two part tariffs 2pts which charge a fixed entry fee and a per unit fee can extract a large fraction of the optimal revenue with a small menu of choices and they become more attractive once the costs of tariff management are factored in we show that three part tariffs 3pts which use an additional instrument the free allowance are an even more efficient way to price discriminate a relatively small menu of 3pts can be more profitable than a menu of 2pts of any size this 3pt menu can be designed with less information about consumer preferences relative to the menu of two part tariffs which in order to segment customers optimally needs fine grained information about preferences our analysis reveals a counterintuitive insight that more complex tariffs need not always be more profitable it matters whether the complexity is from many choices or more pricing instruments

why there should be no political foreign aid curse summary this paper considers the causality underlying the so called political aid curse which proposes that foreign aid like oil should hinder democracy using a theoretical model which identifies repression and appeasement as the primary alternatives to democratization it argues that aid revenue should not produce a political curse because it is less fungible more conditional and less constant than state oil revenue making it difficult for recipient governments to use their aid to fund either repression or appeasement using several different measures associated with repression and appeasement the statistical results show that aid cannot be associated with any of these dependent variables

a bertrand model of pricing and entry abstract we analyze an oligopolistic pricing and entry model in which there is a sunk cost of entry and in which firms outputs are homogeneous firms pure strategies consist of a binary entry decision and conditional on entry a uniform or non linear price schedule there does not exist a pure strategy nash equilibrium in this model so we analyze the symmetric mixed strategy equilibrium the main result is that if there exists a positive sunk cost of entry then an increase in the number of potential competitors puts more probability weight on higher prices this result is counter to the usual intuition that underlies current antitrust policy

monopoly with incomplete information recent theoretical research on principal agent relationships has emphasized incentive problems that arise when the parties involved are constrained by either asymmetric information or their inability to monitor each other s actions here we concentrate on the former constraint and consider the case of a single principal the monopolist the main contribution is to show that under a separability assumption strong conclusions can be drawn about the nature of optimal incentive schemes although the primary focus is on optimal quantity discounts in a monopolized market the results also shed light on related topics such as optimal income taxation and commodity bundling

optimal nonuniform prices we consider optimal nonuniform pricing schedules where the price depends upon the amount purchased such schedules are regularly used by public utilities and other services welfare optimal nonuniform prices are related to the theory of optimal uniform prices developed by ramsey we characterize situations in which upward or downward discontinuities in pricing schedules are optimal our results are applicable to a number of related problems including optimal taxation insurance and incentives economic theory has confined most of its attention to markets with uniform prices in which the price per unit charged is invariant to the level of a customer s purchases this focus is warranted when goods are resellable since any attempt to charge nonuniform prices could be circumvented by reselling amongst customers but when goods are not resellable nonuniform prices are not only possible but common public utilities have declining block pricing with lower unit charges for large levels of consumption many agencies providing services including communications transportation even education use two part pricing with a fixed entry or retainer charge and a further charge per unit consumption nonuniform price schedules can be expected to be ever more common as services become a larger fraction of total output the increasing prevalence of nonuniform pricing policies have made them the focus of recent public and economic attention oi 1971 feldstein 1972 and ng and weisser 1974 have examined optimal two part pricing policies leland and meyer 1976 examine block pricing and show by example that optimal welfare policies may require nonuniform prices if zero profit constraints are binding in this paper we consider arbitrary nonuniform pricing policies using variational techniques two part and block pricing schedules are of course special cases of the environment we consider the work most closely related to our examination is the seminal paper by spence 1978 and subsequent analysis by roberts 1979 spence however does not pay explicit attention to the key role played by constraints on optimal pricing schedules roberts considers upward price discontinuities which lead to bunching of consumers at a given level of consumption but not downward price discontinuities which lead to regions in which no consumer chooses to consume gaps bunching or gaps may appear in the optimal price schedule even when underlying demand and cost functions are smooth and well behaved the prevalence of discontinuous pricing schedules e g the block pricing structures of public utilities argues that these questions are of practical as well as theoretical interest

do natural resources fuel authoritarianism a reappraisal of the resource curse a large body of scholarship finds a negative relationship between natural resources and democracy extant cross country regressions however assume random effects and are run on panel datasets with relatively short time dimensions because natural resource reliance is not an exogenous variable this is not an effective strategy for uncovering causal relationships numerous sources of bias may be driving the results the most serious of which is omitted variable bias induced by unobserved country specific and time invariant heterogeneity to address these problems we develop unique historical datasets employ time series centric techniques and operationalize explicitly specified counterfactuals we test to see if there is a long run relationship between resource reliance and regime type within countries over time both on a country by country basis and across several different panels we find that increases in resource reliance are not associated with authoritarianism in fact in many specifications we generate results that suggest a resource blessing

an efficiency approach to choice set formation theory and application to recreational destination choice an unresolved debate in behavioural choice research surrounds specifying individual choice sets to overcome the limitations of deterministic and probabilistic approaches in a framework consistent with individual optimizing behaviour this study develops an efficient frontiers approach to the choice set problem in the context of revealed preference destination choice stochastic frontier models relating costly inputs to utility generating outputs are estimated to measure the efficiency of sites choice sets are then formed by retaining sites that exceed alternative efficiency thresholds choice set composition site choice efficiency and probability of selection and consumer surplus are evaluated in the case of fishery site choice in maine

the hedonic travel cost model a view from the trenches accessible to them consequently it is reasonable to expect that economic models of these decisions will recognize the role of recreation sites characteristics for individual demands and that they will allow for the possibility that the individual s optimal choices may not involve interior solutions in all the available recreation sites in response to these expectations the recent literature has seen a number of innovations in recreation demand models one of these models is based on a fundamen

hedonic price functions and the measurement of preferences the case of swedish wine consumers abstract a hedonic price function for wine is estimated using swedish data 1989 1991 implicit prices for quality attributes are determined not from a regression of variety price on a vector of quality attributes but rather from a regression of quantity sold adjusted for weeks of availability on price and quality attributes such a reduced form is justified by the assumption that prices and attribute contents can be taken as exogenous to the swedish consumer price elasticity is estimated to be about 1 65 holding quality constant showing that swedish consumers are highly sensitive to price estimates of the implicit valuations of quality attributes are shown to differ greatly from those obtained from the more usual hedonic regression with price as the dependent variable

foreign aid and statehood in africa has foreign aid destroyed state institutions in africa african states depend on development assistance to conduct basic government operations yet few of these states are well governed or effective at providing public goods the two trends mounting foreign aid and static or diminishing state performance raise an obvious question is aid dependency contributing to misrule and state failure in africa many critics argue the two phenomena are related i find they are not my analysis fails to show a negative association between aid receipts and two measures of democracy and economic freedom instead the evidence is consistent with a small positive relationship between aid and these indicators of state performance since the international community seems bent on reducing foreign aid an important issue is how african states can maintain and improve their performance with less foreign assistance

does foreign aid target the poorest to examine the extent to which foreign aid reaches people at different levels of wealth in africa i use household surveys to measure the subnational distribution of a country s population by wealth quintiles and match this information to data on the location of aid projects from two multilateral donors within countries aid disproportionately flows to regions with more of the richest people aid does not favor regions with more of the poorest people these findings violate the stated preferences of the multilateral donors under study suggesting that the donors either cannot or are not willing to exercise control over the location of aid projects within countries the results also suggest that aid is not being allocated effectively to alleviate extreme poverty

the perils of unearned foreign income aid remittances and government survival given their political incentives governments in more autocratic polities can strategically channel unearned government and household income in the form of foreign aid and remittances to finance patronage which extends their tenure in political office i substantiate this claim with duration models of government turnover for a sample of 97 countries between 1975 and 2004 unearned foreign income received in more autocratic countries reduces the likelihood of government turnover regime collapse and outbreaks of major political discontent to allay potential concerns with endogeneity i harness a natural experiment of oil price driven aid and remittance flows to poor non oil producing muslim autocracies the instrumental variables results confirm the baseline finding that authoritarian governments can harness unearned foreign income to prolong their rule finally i provide evidence of the underlying causal mechanisms that governments in autocracies use aid and remittances inflows to reduce their expenditures on welfare goods to fund patronage

taking time seriously dramatic world change has stimulated interest in research questions about the dynamics of politics we have seen increases in the number of time series data sets and the length of typical time series but three shortcomings are prevalent in published time series analysis first analysts often estimate models without testing restrictions implied by their specification second researchers link the theoretical concept of equilibrium with cointegration and error correction models third analysts often do a poor job of interpreting results the consequences include weak connections between theory and tests biased estimates and incorrect inferences we outline techniques for estimating linear dynamic regressions with stationary data and weakly exogenous regressors we recommend analysts 1 start with general dynamic models and test restrictions before adopting a particular specification and 2 use the wide array of information available from dynamic specifications we illustrate this strategy with data on congressional approval and tax rates across oecd countries

nonlinear prices and the regulated firm this paper examines the problem of a regulated utility that sells output according to a nonlinear price schedule three results are obtained first rate of return regulation lowers the price schedule charged by the firm along its entire length second some units of output will always be sold at a marginal price below true marginal cost third a move from linear to nonlinear prices at a given fair rate of return can lead to an unambiguous increase in welfare

on allocative distortions in problems of self selection this article considers the general structure of self selection models by imposing conditions which permit the ordering of agents by their preferences we provide a characterization of the distortions inherent in the sorting process

volatility of development aid from the frying pan into the fire summary the paper building on the authors previous analysis examines the relative volatility of aid flows into developing countries and their domestic revenue using new data and three alternative measures of aid instability relative volatility vis a vis fiscal revenue unpredictability of aid disbursement relative to commitments and failure of aid to smooth fluctuations in aggregate income it finds that the volatility of aid flows is still much greater than that of domestic revenue and that this difference is not decreasing especially in very poor aid dependent countries this high volatility of inflows makes the macroeconomy hard to manage further the influence of aid has been procyclical and not countercyclical aid has failed to act either as a stabilizing force or as an insurance mechanism we argue that to counter these unwelcome trends donors need to be able to respond more speedily and effectively to large adverse shocks and their conditionalities need to become more flexible possibilities explicitly discussed elsewhere in this special section

oil nontax revenue and the redistributional foundations of regime stability nontax revenues make up a substantial amount of government revenue around the world though scholars usually focus on individual sources of such revenue for example foreign aid and state owned oil companies using a theory of regime change that builds on recent models of the redistributional foundations of dictatorships and democracies i generate hypotheses regarding all nontax revenue and regime stability i argue that an increase in nontax revenue should be associated with less taxation of elites in democracies more social spending in dictatorships and more stability for both regime types i find support for all three of these hypotheses in a cross sectional time series analysis covering all countries and years for which the necessary data are available significantly i show that the particular source of nontax revenue does not make a difference they all act similarly with regard to regime stability and the causal mechanisms

combining farrell frontier and hedonic travel cost models for valuing estuarine quality a 1992 survey of tennessee anglers was used to determine who is fishing and how often the species they fish for and how anglers perceive the regulatory structure the results are based on telephone interviews with 450 active licensed an glers nearly 81 of the anglers visited a tennessee reservoir in 1992 while 41 fished warm water streams 28 farm ponds and 22 trout streams over 60 pre ferred separate regulations for reservoirs active reservoir fishermen were more likely to support individual regulations the participants were evenly split on whether a proposed regulation which has public support should be imposed even if the manage ment agency does not feel the fishery would benefit eighty percent of the anglers indicated that existing fishing regulations were not complicated proc annu conf southeast assoc fish and wildl agencies 47 767 774 proper administration of fishery resources requires management authorities to have knowledge of the angler population served by the management agency specifically authorities should be aware of the type and intensity of angler activi ties and understand angler preferences concerning existing and proposed management alternatives to the degree that certain types of fishermen are less likely to support management policies authorities should target educational pro grams specifically at non supportiv e anglers to gain greater public support for biologically viable management strategies this study uses data gathered from a survey of tennessee anglers to deter mine who is fishing and how often the species they are targeting and how anglers perceive the regulatory structure we report the demographic factors of anglers which exhibit statistically significant relationships to angler support for the current

politics and the effectiveness of foreign aid abstract critics of foreign aid programs have long argued that poverty reflects government failure in this paper i test predictions for aid effectiveness based on an analytical framework that relates aid effectiveness to political regimes i find that aid does not significantly increase investment nor benefit the poor as measured by improvements in human development indicators but it does increase the size of government the impact of aid does not vary according to whether recipient governments are liberal democratic or highly repressive but liberal political regimes and democracies ceteris paribus have on average 30 lower infant mortality than the least free regimes this may be due to greater empowerment of the poor under liberal regimes even though the political elite continues to receive the benefits of aid programs an implication is that short term aid targeted to support new liberal regimes may be a more successful means of reducing poverty than current programs

application of the distance function to nonmarket valuation of environmental goods and services an illustrative example abstract this paper develops and implements a unique formulation of a household production model in that technology is characterized as a distance function the properties of the distance function allow for the derivation of shadow prices for the inputs and outputs associated with household production which can be applied to the problem of valuing nonmarket goods or activities the approach requires only one input to or output of household production to bear a price the derivation of shadow prices for all other household inputs outputs follows from the properties of the distance function i demonstrate the approach using data on the waste management activities of a sample of households from marietta georgia and by calculating shadow prices for the nonmarket activity of recycling

the welfare economics of optional water metering a model of decentralised metering decisions that applies to the water industry is developed the social benefit of metering is higher the more sensitive demand is to the price allowing households to choose whether or not to have meters is efficient when only small households should have meters but does not work when the regulator does not know household characteristics and only larger households should have meters the policy of requiring meters to be provided free which has been adopted in england and wales is analysed

two part tariffs with quality degradation abstract this paper examines a firm s incentive to sell a service that is of lower quality when the firm offers a menu of two part tariffs each tariff is characterized by a fixed fee together with two screening instruments these being a uniform per unit charge and a quality restriction we find that allocation of quality is monotonic in type while per unit charge might be non monotonic the results thus contradict one of the most established insights in nonlinear pricing that the per unit charge should be monotonically decreasing over the type space we show that this practice increases welfare due to increased consumption efficiency

is aid oil an analysis of whether africa can absorb more aid summary this paper considers whether africa can absorb a doubling of aid if oil revenues provide a natural experiment the results are disappointing far from being transformational they have been markedly less successful than aid one implication is that the delivery modalities of aid though heavily criticized have substantially added value the paper discusses which modalities may have been most useful unfortunately aid appears to be subject to diminishing returns so that doubling aid through conventional modalities would not double its impact the paper concludes by considering innovations in aid modalities which might offset diminishing returns