the equivalence between destination and non reciprocal restricted origin tax regimes it is well known that destination and reciprocal restricted origin tax regimes are only equivalent under very stringent conditions an alternative nonreciprocal restricted origin regime is proposed and then shown to be equivalent to the destination regime under a wide set of conditions including imperfect competition and transport costs the policy implications of the result for the european community are discussed copyright 1994 by the editors of the scandinavian journal of economics

it only takes a few moments to hedge options abstract we propose a novel non structural method for hedging european options relying on two model independent results first under suitable regularity conditions an option price can be disentangled into a linear combination of risk neutral moments second there exists an explicit approximate functional form linking the risk neutral moments to the futures price of the underlying asset and the related variance swap contracts we show that s p 500 call prices are mainly explained by two factors that are related to level and volatility of the underlying index we empirically compare the performance of two strategies where the vega exposure is adjusted either by a direct position in a variance swap contract or indirectly through an at the money call while both strategies ensure effective immunization in periods of market turmoil taking direct exposure on variance swaps is not optimal during extended periods of subdued volatility

the minimum variance hedge ratio under stochastic interest rates in an environment where interest rates are stochastic we examine the case of a pure hedger endowed with a fixed position in a long term bond in contrast to conventional wisdom according to which the difference between hedging through forward contracts and futures is immaterial it turns out that the minimum variance hedge ratio using forwards comprises two terms instead of one only when using futures the magnitude of the difference between the two hedge ratios may be important under some plausible assumptions this result is due to the presence of additional interest rate risk that bears on the profit and loss statement associated with the forward position this sheds some additional light on the respective features of forward and futures contracts written on interest rate sensitive securities

optimal currency risk hedging abstract this paper investigates the optimal hedging strategy of a domestic expected utility maximizer endowed with a temporarily non traded position in a foreign investment the domestic and foreign yield curves the exchange rate between the two involved currencies and the foreign investment value are stochastic and obey fairly general diffusion processes we compare the hedger s optimal strategies using either exchange rate forward contracts or futures contracts for both strategies the optimal number of contracts held can be broken down into several components having clear economic interpretations however while futures contracts are known in such a context to be more difficult to price than their forward counterparts the optimal strategy using them is simpler this is due to the fact that when forward contracts are used incurred profits or losses that accrue to the investor s wealth at each instant are locked in in the forward position up to the contract maturity thus discounting these gains or losses back at the current date brings about an interest rate risk therefore the investor s hedging strategy itself generates an additional risk which in turn induces the need for additional hedging the magnitude of the difference between the two hedge ratios may be significant under a set of plausible assumptions since in general financial markets are not complete the additional interest rate risk cannot be perfectly hedged hence the marking to market mechanism that characterizes futures contracts and allows for the complete elimination of this risk is valuable for risk averse agents

forward and futures prices with markovian interest rate processes the authors derive a closed form expression for the differences between forward and futures prices in the framework of a lucas equilibrium model they calculate this difference for fixed income securities in two ways using historic interest rate data to calibrate the matrix of nominal state prices and testing a large sample of randomly generated state price matrices in both cases the authors find few meaningful differences between forward and futures prices larger differences are generated from highly diagonal state price matrices the authors conclude that in economically relevant circumstances the costs of marking to market for fixed income securities are negligible copyright 1994 by university of chicago press

income redistribution in a common labor market when households are mobile among jurisdictions income redistribution by individual jurisdictions creates fiscal externalities a model of interjurisdictional migration is used to study the nature of this redistributive externality analysis of optimal redistribution and optimal corrective subsidies from higher level governments shows that benefit levels for the recipients of income transfers and tax rates on mobile taxpayers should be equalized across jurisdictions a system of jurisdictions with a common labor market can achieve welfare improvements through coordination of domestic redistributive policy or through the intervention of a higher level government copyright 1991 by american economic association

domestic taxation and international portfolio choice abstract given uncertain domestic currency denominated tax payments risk averse investors hold a portion of their wealth in a tax hedge portfolio which empirical results show is comprised chiefly of the domestic bond tax hedging may therefore explain the observed preference for home country assets

on the optimal hedge of a nontraded cash position in this paper we focus on the optimal demand for futures contracts by an investor with a logarithmic utility function who attempts to hedge a nontraded cash position when the analysis is conducted in the cash commodity price space we show that the value function associated with the bernoulli investor program is not additively separable thus suggesting that this investor hedges against shifts in the opportunity set as represented by the commodity price by establishing the equivalence between the cash formulation of the problem and the wealth formulation we are able to analyze the problem in the wealth commodity price space in this space we show the additive separability of the value function when the futures settlement price process is perfectly locally correlated with the commodity price process the demand for futures in this instance is composed of a a mean variance term and b a minimum variance component that is a classic feature of models with nontraded assets since the first best nonmyopic optimum is attained however the deviation from a mean variance demand should not be interpreted as the expression of a nonmyopic behavior but rather as an attempt to restore a first best optimum on the other hand when the correlation between the futures price and the underlying commodity price is imperfect in general the value function does not separate additively the first best solution cannot be attained and the optimal futures trading strategy involves a hedging term against shifts in the opportunity set in the classic dynamic portfolio problem the investor selects a trading strategy in risky and riskless assets so as to maximize his or her expected lifetime utility in this environment where all assets can be freely traded the logarithmic investor behaves myopically to the extent that he or she ignores shifts in the opportunity set when making current choices samuelson 271 mossin 24 hakansson 16 merton 22 in particular in models with continuous trading it turns out that the value function corresponding to the investor s program is additively separable in wealth and state variables the implication is that his or her behavior will be myopic i e that his or her demand functions for assets will be of the pure meanvariance efficiency type and in particular will not include any dynamic hedging components that are characteristic of financial markets with shifting opportunities in this paper we investigate the structure of the bernoulli investor s demand functions in the situation where one asset cannot be freely traded in the market

nontraded assets and the capm abstract asset pricing models that rely on the presence of non tradable assets such as human wealth to solve the equity premium puzzle have to confront the effect of decreasing absolute risk aversion rich investors who according to micro data hold the stock market and whose behavior is the one that matters at the margin for the determination of equilibrium asset prices are less risk averse ceteris paribus than the average consumer this paper highlights a channel through which the effect of decreasing absolute risk aversion can be overcome the existence of a positive correlation between the rates of return on traded assets and on the human capital of marginal investors

the time pattern of hedging and the volatility of futures prices the paper proposes a multi period model of hedging which allows for a futures position to be revised within the cash market holding period within this framework we assess the robustness of the two period theory of hedging when generalized to many periods we characterize the normal time path of a hedge and the way it is affected by the requirement that futures accounts mark to market daily finally we show how the resolution of production uncertainty over time affects hedging behavior and determines the volatility of futures prices in the large literature on hedging in futures markets the principal analytical accounts of hedging are framed in a two trade date setting an agent commits himself now to a future purchase or sale of a good whose cash price later is uncertain this risk is hedged by purchase or sale of an appropriate number of futures contracts and holding this futures position until the cash transaction is realized in the present paper we formulate a multi period model of hedging which allows for the futures position to be revised within the cash market holding period the resulting analysis captures an important institutional reality that is absent in a two trade date model namely the fact that the day to day fluctuations of the futures price will generate a series of random cash flows over the period during which a futures position is held this is due to the requirement that futures accounts mark to market daily within this framework we address a number of issues first we assess the robustness of the two period theory of hedging when generalized to many periods second we characterize the normal time path of a hedge and contrast futures and forward contracts from the perspective of an individual hedger finally we show how the resolution of production uncertainty over time affects hedging behaviour and determines the volatility of futures prices while the literature on asset demand in a multiperiod setting is large futures markets are specifically treated in a limited number of studies grauer and litzenberger 1976 are concerned principally with characterizing the relation of spot and futures prices in a market for a storable periodically produced commodity they offer a rationale for positive stock holding in markets where spot price exceeds the futures price richard and sundaresan 1980 are also concerned primarily with characterizing price behaviour since they posit identical consumers in equilibrium individual holdings of futures are zero there is no hedging activity in the sense that we understand it breeden 1980b analyzes the optimal futures position sizes in a multiperiod setting his framework is more general than ours in that his is a multi good multi asset model where preferences

bond pricing and the term structure of interest rates a new methodology for contingent claims valuation this paper presents a unifying theory for valuing contingent claims under a stochastic term structure of interest rates the methodology based on the equivalent martingale measure technique takes as given an initial forward rate curve and a family of potential stochastic processee for its subsequent movements a no arbitrage condition restricts this family of processes yielding valuation formulae for interest rate sensitive contingent claims which do not explicitly depend on the market prices of risk examples are provided to illustrate the key results in relation to the term structure of interest rates arbitrage pricing theory has two purposes the first is to price all zero coupon default free bonds of varying maturities from a finite number of economic fundamentals called state variables the second is to price all interest rate sensitive contingent claims taking as given the prices of the zero coupon bonds this paper presents a general theory and a unifying framework for understanding arbitrage pricing theory in this context of which all existing arbitrage pricing models are special cases in particular vasicek 1977 brennan and schwartz 1979 langetieg 1980 ball and torous 1983 ho and lee 1986 schaefer and schwartz 1987 and artzner and delbaen 1988 the primary contribution of this paper however is a new methodology for solving the second problem i e the pricing of interest rate sensitive contingent claims given the prices of all zero coupon bonds the methodology is new because i it imposes its stochastic structure directly on the evolution of the forward rate curve ii it does not require an inversion of the term structure to eliminate the market prices of risk from contingent claim values and iii it has a stochastic spot rate process with multiple stochastic factors influencing the term structure the model can be used to consistently price and hedge all contingent claims american or european on the term structure and it is derived from necessary and more importantly sufficient conditions for the absence of arbitrage the arbitrage pricing models of vasicek 1977 brennan and schwartz 1979 langetieg 1980 and artzner and delbaen 1988 all require an iformerly titled bond pricing and the term structure of interest rates a new methodology

an equilibrium model of bond pricing and a test of market efficiency in two previous and related papers 3 4 the authors have reported the results of estimating a particular equilibrium model of bond pricing using quarterly data on canadian government bonds for the period 1964 to 1979 this paper reports the results of applying a similar model to the pricing of u s government bonds for the period 1958 1979 using data from the crsp government bond file the paper also extends the previous empirical analysis by evaluating the ability of the pricing model to detect underpriced and overpriced bonds the data reveal a strong relation between price prediction errors and subsequent bond returns

exchange rate variability and asset trade in popular discussion about the merits of different international monetary arrangements it is often maintained that increased exchange rate variability has a negative influence on international tra

equilibrium in securities markets with heterogeneous investors and unspanned income risk abstract in a finite time horizon incomplete market continuous time setting with dividends and investor incomes governed by arithmetic brownian motions we derive closed form solutions for the equilibrium risk free rate and stock price for an economy with finitely many heterogeneous cara investors and unspanned income risk in equilibrium the sharpe ratio is the same as in an otherwise identical complete market economy whereas the risk free rate is lower and consequently the stock price is higher the reduction in the risk free rate is highest when the more risk averse investors face the largest unspanned income risk

optimal hedging and equilibrium in a dynamic futures market abstract this paper considers an agent maximizing the expected utility of the sum of the terminal value of a fixed portfolio of spot market assets and the terminal value of a margin account on a futures trading position closed form solutions for the optimal hedging strategy are provided in several special cases

generalizing the permanent income hypothesis revisiting friedman s conjecture on consumption abstract friedman s contribution to the consumption literature goes well beyond the seminal permanent income hypothesis he conjectured that the marginal propensity to consume out of financial wealth shall be larger than out of human wealth the present discounted value of future labor income i present an explicitly solved model to deliver this widely noted consumption property by specifying that the conditional variance of changes in income increases with its level a larger realization of income not only implies a higher level of human wealth but also signals a riskier stream of future labor income inducing a higher precautionary saving and thus giving rise to friedman s conjecture appropriately adjusting human wealth for income risk i show that friedman s conjecture may be formulated as a generalized permanent income hypothesis i further show that friedman s conjecture captures the first order effect of stochastic precautionary savings finally i propose a natural decomposition of the optimal saving rule to formalize various motives for holding wealth as emphasized in friedman m 1957 a theory of the consumption function princeton university press princeton

dynamic taxation of non renewable natural resources under asymmetric information about reserves optimal regulation is developed for a case with type dependent dynamics in costs in exploiting nonrenewable natural resources a government faces the problem that extraction companies possess private information about the size of the reserves optimal contracts in a two period framework distort both the extent and the pace of depletion the regulatory optimum is implementable by a menu of tangent planes generated by license fees and royalties or by a corporate income tax system containing type dependent depletion allowances and tax exempted income levels if the terminal time is endogenized it is optimal also to distort the number of extraction periods

on optimal portfolio choice under stochastic interest rates abstract in an economy where interest rates and stock price changes follow fairly general stochastic processes we analyze the portfolio problem of an investor endowed with a non traded cash bond position he can trade on stocks the riskless asset and a futures contract written on the bond so as to maximize the expected utility of his terminal wealth when the investment opportunity set is driven by an arbitrary number of state variables the optimal portfolio strategy is known to contain a pure preference free hedge component a speculative element and merton breeden hedging terms against the fluctuations of each and every state variable while the first two components are well identified and easy to work out the implementation of the last ones is problematic as the investor must identify all the relevant state variables and estimate their distribution characteristics using the martingale approach we show that the optimal strategy can be simplified to include in addition to the pure hedge and speculative components only two merton breeden type hedging elements however large is the number of state variables the first one is associated with interest rate risk and the second one with the risk brought about by the co movements of the spot interest rate and the market prices of risk the implementation of the optimal strategy is thus much easier as it involves estimating the characteristics of the yield curve and the market prices of risk only rather than those of numerous a priori unknown state variables moreover the investor s horizon is shown explicitly to play a crucial role in the optimal strategy design in sharp contrast with the traditional decomposition finally the role of interest rate risk in actual portfolio risk management is emphasized

optimal portfolio choice for long horizon investors with nontradable labor income this paper examines how risky labor income and retirement affect optimal portfolio choice with idiosyncratic labor income risk the optimal allocation to stocks is unambiguously larger for employed investors than for retired investors consistent with the typical recommendations of investment advisors increasing idiosyncratic labor income risk raises investors willingness to save and reduces their stock portfolio allocation towards the level of retired investors positive correlation between labor income and stock returns has a further negative effect and can actually reduce stockholdings below the level of retired investors financial advisors typically recommend that their customers invest more in stocks than in safe assets when they are working and to shift their investments towards safe assets when they retire jagannathan and kocherlakota 1996 malkiel 1996 by contrast the standard academic models of portfolio choice merton 1969 1971 samuelson 1969 show that retirement is irrelevant for portfolio decisions if investment opportunities are constant and human capital is tradable in this case the fraction of wealth optimally invested in risky assets should be constant over the lifetime of an individual recent research building on the pioneering work by merton 1971 shows that time varying investment opportunities result in portfolio rules with an intertemporal hedging component whose magnitude depends on the investment horizon of the investor kim and omberg 1996 balduzzi and lynch 1997 brennan schwartz and lagnado 1997 brandt 1999 campbell and viceira 1999 2001 barberis 2000 with time variation in investment opportunities retirement and death play an instrumental role as events that exogenously fix the individual s investment horizon more importantly retirement also marks the time at which individuals stop working and thereafter must live off their lifetime savings and possibly transfers from this perspective retirement matters for portfolio choice

how firms should hedge substantial academic research explains why firms should hedge but little work has addressed how firms should hedge we assume that firms can experience costly states of nature and derive optimal hedging strategies using vanilla derivatives e g forwards and options and custom exotic derivative contracts for a value maximizing firm facing both hedgable price and unhedgable quantity risks customized exotic derivatives are typically better than vanilla contracts when correlations between prices and quantities are large in magnitude and when quantity risks are substantially greater than price risks finally we discuss how our model may be applied in practice copyright 2002 oxford university press

the new political economy of taxation in advanced capitalist democracies earlier versions of this paper were presented at the 1999 annual meeting of the american political science association september 1 5 atlanta ga and the 2000 annual meeting of the midwest political science association april 27 30 chicago il the authors thank steffen ganghof philip genschel mark hallerberg alex hicks william keech dennis quinn and the anonymous reviewers and editor of this journal for many helpful comments and dennis quinn for generously sharing data duane swank thanks the german marshal fund of the united states and marquette university for support of work incorporated in this paper data utilized in this paper are available from duane swank marquette edu

volatility uncertainty time decay and option bid ask spreads in an incomplete market this paper documents the fact that in options markets the percentage implied volatility bid ask spread increases at an increasing rate as the option s maturity date approaches to explain this stylized fact this paper provides a market microstructure model for the bid ask spread in options markets we first construct a static equilibrium model to illustrate the aforementioned phenomenon where risk averse and competitive option market makers quote bid and ask prices to minimize their inventory risk in an incomplete market with both directional and volatility risk we extend this model to multiperiods and show that the same phenomenon occurs there as well two new implications are generated a volatility level effect and a volatility variance effect these implications are empirically tested and the empirical results confirm the model s validity finally we document the importance of detrending the maturity effect by showing that the detrended percentage volatility spread explains future jump intensit

an intertemporal general equilibrium model of asset prices this paper develops a continuous time general equilibrium model of a simple but complete economy and uses it to examine the behavior of asset prices in this model asset prices and their stochastic properties are determined endogenously one principal result is a partial differential equation which asset prices must satisfy the solution of this equation gives the equilibrium price of any asset in terms of the underlying real variables in the economy in this paper we develop a general equilibrium asset pricing model for use in applied research an important feature of the model is its integration of real and financial markets among other things the model endogenously determines the stochastic process followed by the equilibrium price of any financial asset and shows how this process depends on the underlying real variables the model is fully consistent with rational expectations and maximizing behavior on the part of all agents our framework is general enough to include many of the fundamental forces affecting asset markets yet it is tractable enough to be specialized easily to produce specific testable results furthermore the model can be extended in a number of straightforward ways consequently it is well suited to a wide variety of applications for example in a companion paper cox ingersoll and ross 7 we use the model to develop a theory of the term structure of interest rates many studies have been concerned with various aspects of asset pricing under uncertainty the most relevant to our work are the important papers on intertemporal asset pricing by merton 19 and lucas 16 working in a continuous time framework merton derives a relationship among the equilibrium expected rates of return on assets he shows that when investment opportunities are changing randomly over time this relationship will include effects which have no analogue in a static one period model lucas considers an economy with homogeneous individuals and a single consumption good which is produced by a number of processes the random output of these processes is exogenously determined and perishable assets are defined as claims to all or a part of the output of a process and the equilibrium determines the asset prices our theory draws on some elements of both of these papers like merton we formulate our model in continuous time and make full use of the analytical tractability that this affords the economic structure of our model is somewhat similar to that of lucas however we include both endogenous production and

a continuous time equilibrium model of forward prices and futures prices in a multigood economy abstract this paper is a theoretical investigation of equilibrium forward and futures prices we construct a rational expectations model in continuous time of a multigood identical consumer economy with constant stochastic returns to scale production using this model we find three main results first we find formulas for equilibrium forward futures discount bond commodity bond and commodity option prices second we show that a futures price is actually a forward price for the delivery of a random number of units of a good the random number is the return earned from continuous reinvestment in instantaneously riskless bonds until maturity of the futures contract third we find and interpret conditions under which normal backwardation or contango is found in forward or futures prices these conditions reflect the usefulness of forward and futures contracts as consumption hedges

tax competition and the distribution of income in this paper we provide a two country two class model of asymmetric capital tax competition we show formally that poor people living in small countries can benefit from capital tax competition and therefore they are in favor of it in order to benefit from capital inflow from larger countries poor people in smaller countries accept less within country income redistribution as a consequence between country income inequality is increased by tax competition

taxation and the tiebout model the differential effects of head taxes taxes on land rents and property taxes on the theory of state and local public finance is the seminal paper by charles tiebout 1956 tiebout constructed a multijurisdictional model in which independent local governments offer a wide variety of expenditure and tax policies and perfectly mobile consumers reveal their preferences for local public goods through their choice of residential community he argued that under such circumstances local public service provision would be efficient the tiebout model has formed the basis of a vast number of subsequent articles in the state and local public finance literature and has also been very influential in urban and regional economics the efficiency properties of various tiebout type models of local public good provision have been examined and the role of politics in these models has been debated at length in this literature of more direct relevance to this paper however is the fact that although tiebout had little to say directly about taxation simply assuming the existence of head taxes subsequent analyses have used adaptations of this model to examine the effects of local head taxes land taxes and property taxes it is the literature on the efficiency and distributional effects of alternative local taxes that is the subject of this survey 1

social criteria for evaluating population change abstract many applications of economic analysis require social evaluations of alternatives involving different numbers of people in this paper we use the tools of social choice theory to provide an axiomatic formulation of this problem it yields a class of social criteria called critical level generalized utilitarianism this class and its implications are compared with other criteria and are found to yield intuitively appealing results

economic integration and fiscal devolution abstract in this paper we investigate how economic integration influences the political decision of integration and separation of jurisdictions in a model with imperfect capital mobility we consider that not only the redistributive policy itself but also the level of policy centralization is decided by a majority vote we find that the net benefit from integration is not monotonic with the level of world capital market integration and present a case where integration of two regions occurs only for intermediate levels of mobility this conclusion relies on the comparison of the regional majorities utility under the various regimes the benefits from integration arise from the elimination of tax competition across jurisdictions which allows for more income redistribution whereas the costs are linked to the diversity of preferences across regions namely that of the decisive voters we also show that a federal regime is better than complete centralization in keeping a nation united

on the fluctuations in consumption and market returns in the presence of labor and human capital an equilibrium analysis abstract we examine the effects of human capital on consumption stock market and other fluctuations in a general equilibrium continuous time model a representative consumer worker investor derives utility from consumption and leisure a representative firm demands labor as the sole input to a stochastic production technology driven by general possibly nonmultiplicative shocks for cobb douglas utility and multiplicative shocks labor is nonstochastic and consumption and stock market volatility are equated as under no human capital deviations from this are analyzed for logarithmic utility and constant elasticity of substitution production technology cases are identified where the presence of labor causes consumption to be smoother than the stock market

futures markets and commodity options hedging and optimality in incomplete markets abstract this paper examines the allocational roles of futures markets and commodity options in multi good and multi period economies in a continuous time model with time additive utilities and homogeneous beliefs trading in unconditional futures contracts the market portfolio and a riskless asset gives any pareto optimal allocation individuals optimal holdings of futures contracts in the continuous time model are related to their consumption bundles and to their risk tolerances it is shown that both hedging and reverse hedging behavior are possible in the general model with discrete trading options on portfolios of commodity options are shown to permit any unconstrained pareto optimal allocation

revealed preferences for public goods applying a model of voter behavior most analyses of preferences for government supplied goods disregard the fact that in a democratic society these preferences are revealed by an individual choice the vote in this paper this is taken account of in a model explaining the dynamics in voting behavior in a multi party system the model assumes that voters may be categorized into k groups of individuals pursuing the same interests who remember how parties do in representing these interests given the level to which they are held responsible for government policy the model allows one to estimate party identification sensitiveness to economic performances time preference and relative preferences for public versus private goods all for each of the groups furthermore the model allows for an estimation of the level to which various parties are held responsible for government policies

spreading currency forwards why and how abstract in this paper we have adopted a continuous time framework in which a hedger has a currency risk sensitive non traded cash position the hedger has the opportunity to hedge against risk by using two currency forward contracts that differ only in their maturities the hedger is able to reach a perfect hedge of his non traded position by using only two currency forward contracts with different maturities even though four sources of uncertainty drive the international economy this perfect hedge is reached by spreading forward contracts where the hedger is short in the nearby contract and long in the deferred contract this strategy is easy to implement since no parameter has to be estimated empirically when the hedger is a price taker finally the analysis has been extended to currency futures contracts we show in explicit terms how the marking to market of futures positions affects the spreading strategy

optimal consumption and portfolio policies when asset prices follow a diffusion process abstract we consider a consumption portfolio problem in continuous time under uncertainty a martingale technique is employed to characterize optimal consumption portfolio policies when there exist nonnegativity constraints on consumption and on final wealth we also provide a way to compute and verify optimal policies our verification theorem for optimal policies involves a linear partial differential equation unlike the nonlinear partial differential equation of dynamic programming the relationship between our approach and dynamic programming is discussed we demonstrate our technique by explicitly computing optimal policies in a series of examples in particular we solve the optimal consumption portfolio problem for hyperbolic absolute risk aversion utility functions when the asset prices follow a geometric brownian motion the optimal policies in this case are no longer linear when nonnegativity constraints on consumption and on final wealth are included by these examples one can see that our approach is much easier than the dynamic programming approach

redistributive policy with labour mobility across countries it is generally believed that international labour mobility lowers the level of redistribution each country wishes to undertake this paper considers a model with two countries where each government redistributes income between two types of individuals using a general equilibrium model it is shown that there are situations where the level of redistribution in one of the two countries is in fact higher than in the absence of individual mobility this higher level of redistribution is explained by the migration induced changes in the structure of the population in both countries namely by the increase in the proportion of high income individuals in the country that may experience excessive redistribution

labor income and risky investments can part time farmers compete abstract in the developed countries a majority of farm households receive at least as much income from nonfarm sources as from the farm such part time farms have survived inspite of lower returns than full time farms this paper considers when lower returns to part time farming could be compensated by risk reduction due to diversification of income sources the paper uses a dynamic portfolio choice model with labor income the model and results could be applied in other contexts as well

can capital income taxes survive in open economies optimal tax theory forecasts that small open economies should not tax capital income yet countries do tax capital income why the inconsistency this paper shows that use of the double taxation convention whereby governments credit taxes paid abroad against domestic taxes helps explain this inconsistency in particular capital income will be taxed if a dominant capital exporter acts as a stackelberg leader when setting its tax policy due to the convention other countries will then tax capital imports making it attractive for the dominant capital exporter to tax capital income without a dominant capital exporter however the model still forecasts no capital income taxes can taxation of capital income survive the increasing integration of world capital markets a number of recent papers suggest not diamond and mirrlees 1971 for example showed that a small open economy would not choose to tax the income generated by the physical capital located within the country this is because production would occur efficiently under an optimal tax system which requires that domestic investments earn the rate of return available on the world capital market in principle a country might still attempt to tax income earned on the savings of its residents however in practice income from savings invested outside the country is virtually impossible for a government to monitor individuals therefore can evade tax on such savings with very little risk as razin and sadka 1989 show such capital flight in theory eliminates any possibility of a tax on savings investors will simply transfer their funds abroad to avoid taxation yet virtually all countries do in fact tax the capital income earned by corporations and individuals located within their borders how can the theoretical forecast of no capital income taxation be reconciled with this simple observation it is difficult to use existing models with any confidence to analyze the implications of changes in capital income tax rates if these same models forecast that countries should never tax capital income

bond price dynamics and options this paper provides a closed form preference free means of valuing a european call option written on a default free pure discount bond investors may not agree upon a theory of the term structure but they will necessarily agree on equilibrium option values further these equilibrium option values may be obtained without recourse to numerical approximation default free pure discount bond prices were posited to follow a non standardized transformed brownian bridge process this specification implicitly incorporates the terminal constraint that the price of a default free pure discount bond equal its face value at maturity contingent claim valuation necessarily involves consideration of terminal constraints on the value of financial securities the brownian bridge specification permits an appropriate means of incorporating a number of such constraints therefore while this paper has considered only the application of the brownian bridge process to the valuation of debt options the introduction of this process may provide for many further financial applications

capital income taxation and international portfolio choice abstract distortionary proportional capital income taxation is shown to cause both static effects via portfolio re allocation and dynamic effects via changes in the value of a claim to future transfers as well as via perceived changes in the future investment opportunity set the stochastic structure of returns to investment is important for understanding the consequences of a unilateral increase in the domestic tax rate a government choosing optimal tax policy makes a tradeoff between the increase in the perceived value of future transfers and the distortion to portfolio allocation produced by taxation with corporate taxation the optimal tax rate is positive

public sector employee voter participation and salaries the hypothesis advanced by downs 1957 that rational utility maximizing citizens would calculate the benefits and costs of voting in deciding whether to vote often has been employed to argue that voter participation rates among government employees should exceed that of comparable private sector individuals the basic rationale for that prediction was laid out by downs 1957 254 who argued that those who stand the most to gain are the men who earn their incomes there higher voter participation rates for government employees coupled with an implied preference for the expansion of the public sector has also played a role in efforts to explain the growth of government borcherding bush and spann 1977 and bush and denzau 1977 in addition to benefiting from the supply of public goods and services as do all voters government employees are seen as benefiting from the expansion of government through an increase in their salaries in this paper the issue of voter participation rates for government employees is reexamined current population survey cps data tapes containing information on individual voter behavior for the 1984 and 1986 national elections are used to estimate a qualitative choice model 1 consistent with previous findings the results presented indicate that government employees as a group are more likely to vote than are private sector workers with similar socioeconomic and demographic characteristics wolfinger and rosenstone 1980 unlike previous studies however we distinguish between federal and state and local employees this distinction is important building on the downsian hypothesis that the cost and benefits of voting matter the arguments offered in the following section lead to the prediction that the probability of voting should be lower for federal employees than for state and local the empirical

robustly strategic consumption portfolio rules with informational frictions this paper provides a tractable continuous time constant absolute risk aversion gaussian framework to explore how the interactions of fundamental uncertainty model uncertainty due to a preference for robustness and state uncertainty due to information processing constraints rational inattention affect strategic consumption portfolio rules and precautionary savings in the presence of uninsurable labor income specifically after solving the model explicitly i compute and compare the elasticities of strategic asset allocation and precautionary savings to risk aversion robustness and inattention furthermore for plausibly estimated and calibrated model parameters i quantitatively analyze how the interactions of model uncertainty and state uncertainty affect the optimal share invested in the risky asset and show that they can provide a potential explanation for the observed stockholding behavior of households with different education and income levels this paper was accepted by neng wang finance

nontraded assets in incomplete markets pricing and portfolio choice this paper examines portfolio choice and asset pricing when some assets are nontraded for instance when a country cannot trade claims to its output on world capital markets when a government cann

the voting behavior of bureaucrats some empirical evidence this paper has examined the voting behavior of bureaucrats and the consequences for elections the economic theory of the rational voter predicts that bureaucrats would have more to gain by voting than the general public the cost of voting is lower for public employees than for those who work in the private sector as a consequence theory predicts that bureaucrats would participate in elections at a greater rate than other individuals as a test of the validity of the economic theory of voting an empirical analysis of national elections from 1964 to 1978 was presented the evidence is drawn from household survey data published by the u s bureau of the census the data permit a direct observation of voting participation rates of public and private employees the empirical results indicate that bureaucrats consistently participate in elections at significantly greater rates than non bureaucrats as the public sector expands and voter participation rates remain low bureaucrats will exert disproportionate influence on election outcomes

how powerful are public bureaucrats as voters empirical evidence is collected and discussed regarding the influence of public bureaucrats on government sector outcome in their capacity as consumer voters it is necessary to isolate the specific effect of working in the public sector compared to other occupations on voting participation and on the probability to support an increase in the public budget for a balanced evaluation of public bureaucrats power other forms of their influencing the government sector outcome need to be taken into account

dynamic asset pricing with non redundant forwards abstract in an incomplete market in which non redundant forward contracts contribute to span the uncertainty some standard results of portfolio theory must be amended when the investment opportunity set is driven by k state variables a k 3 mutual fund separation theorem is obtained in lieu of merton s k 2 fund separation result the additional fund is a portfolio that hedges the interest rate risk brought about by the optimal portfolio strategy itself second the mean variance efficiency of the market portfolio of cash assets is neither a necessary nor a sufficient condition for the linear relationship between expected return and beta to hold third the pricing equation for a forward contract is shown to contain an extra term relative to that for a cash asset term we name strategy risk premium

discrete exchange rate hedging strategies abstract in this paper we compare the effect of alternative currency hedging strategies on the variance of the terminal value of the firm the main focus is on the time at which the hedge is put down and the frequency with which it is adjusted we show that commonly used strategies such as one period cash flow hedges and long term fixed hedges may leave them firm very exposed to foreign exchange risk one possible explanation for the popularity of one period cash flow hedges is that the firm may shift its operations in response to an exchange rate change we argue that the opportunity for such shifts may help to explain the use of short term hedges

voter participation and the redistributive state the redistributive theory of the state implies that voter participation rates should be highest among those who have the most to gain or lose or a v shaped relationship between income and voting participation should exist we use a data set that contains nearly 21 000 observations on individual survey responses about voting behavior in the u s between 1972 and 1993 to show that the participation rate generally rises monotonically with income perhaps except at very high income levels it does report other findings consistent with an economic theory of voting based on returns to association and with the hypothesis that public employees vote more

pricing continuously resettled contingent claims abstract this paper is a study of continuously resettled contingent claims prices in a stochastic economy as special cases the relationship between futures and forward prices is analyzed and a preference free expression is derived for these prices as well as the price of a continuously resettled futures option whose formula differs from black s futures option pricing formula due to the effects of marking to market the changes in the futures option premium

optimal hedging in a dynamic futures market with a nonnegativity constraint on wealth abstract this paper examines the issue of optimal hedging demands for futures contracts from an investor who cannot freely trade his portfolio of primitive assets in the context of lognormal rather than normal returns and of a constant absolute risk aversion utility function in this context the nonnegativity constraint on wealth is binding and the optimal hedging demands are not identical with those encountered in the bulk of the literature which has largely overlooked this problem negative results concerning the derivation of equilibrium in the futures markets and the computation of the open interests then follow

the relation between forward prices and futures prices abstract this paper consolidates the results of some recent work on the relation between forward prices and futures prices it develops a number of propositions characterizing the two prices these propositions contain several testable implications about the difference between forward and futures prices many of the propositions show that equilibrium forward and futures prices are equal to the values of particular assets even though they are not in themselves asset prices the paper then illustrates these results in the context of two valuation models and discusses the effects of taxes and other institutional factors

the scope for taxation and public expenditure in an open economy in this survey of some central issues of tax and expenditure policy in an open economy we consider the implications for policy of free although not necessarily perfect international mobility of commodities capital and labour we examine the issues both from a positive and a normative point of view trying to identify both the incidence and welfare effects of international mobility one general conclusion is that tax distortions may increase in magnitude in comparison with a closed economy but they may also increase in kind as when otherwise neutral taxes become distortionary because of factor mobility

intertemporal commodity futures hedging and the production decision this paper deals with the producer s optimal use of commodity futures in hedging the framework for analysis is an intertemporal consumption and investment model the producer makes his production decisions at the beginning of the period and realizes his return at the end of the time interval during the period he faces both price and output uncertainties in applying stochastic dynamic programming methods this paper shows the effect of these risks on his consumption behavior further the paper investigates his optimal hedging positions in the futures market over time and his optimal production decisions finally implications of these results on the futures markets are discussed this paper studies a normative model of the farmer s optimal hedging strategy and consumption behavior in a continuous time framework recent papers for example berck 3 rolfo 18 stoll 21 have analyzed the farmer s hedging strategies in a one period context these papers have provided interesting insights into the farmer s production decisions and the optimal design of futures contracts and markets however in a one period model some rather restrictive conditions are imposed on the individual s behavior for example in these models an individual is assumed to ignore any information arrival process as a result the individual is assumed to adjust neither consumption behavior nor hedging positions to the changing state of the world during the production period these conditions can be relaxed in a continuous time framework in an intertemporal context the farmer s hedging problem may be viewed as follows since the farm income at harvest depends on both the spot price and the output in bushels the farmer is subject to both price and output uncertainties during the production period 1 when the farmer can hedge only in the commodity futures market he cannot eliminate both the price and output uncertainties by any hedging strategy 2 as the farm income represents a significant portion of his wealth he must necessarily hold an undiversified portfolio during the production period therefore in essence the farmer must solve for his investment consumption behavior and his hedging strategy facing the nonmarketable asset problem mayers 14 in a multiperiod framework in this context one can see intuitively the major difference between a one

consumption and portfolio policies with incomplete markets and short sale constraints the infinite dimensional case abstract we employ a martingale approach to study a dynamic consumption portfolio problem in continuous time with incomplete markets and short sale constraints we introduce a notion of minimax local martingale and transform the dynamic problem into a static problem of maximizing expected utility over the consumption bundles that satisfy a single budget constraint formed using that measure we establish the existence of and characterize the minimax local measure provide sufficient conditions for the dynamic consumption portfolio problem to have a solution and relate the optimal policies to the solution of quasi linear partial differential equation

jeux sans frontieres tax competition and tax coordination when countries differ in size closer international integration is putting increasing pressure on existing national tax structures this paper uses a simple two country model to address a range of consequent policy concerns focusing particularly on the role of country size differences in size exacerbate the inefficiency from noncooperative behavior harming both countries the smaller country loses from harmonization to any tax rate between those set in the noncooperative equilibrium but both countries gain from the imposition of a minimum tax anywhere in that range the fully optimal response to freer cross border trade however may be to do nothing jel h20 h77

tax policy in the presence of emigration recent policy and theoretical discussions of the effects of highly skilled migration from the underdeveloped countries the so called brain drain have focused on a proposal bhagwati 1972 to levy a supplementary income tax on those who migrate the proceeds of such a tax to be transmitted to the developing country of origin or to developing countries en bloc for developmental spending the welfare implications of such a tax were analyzed in an earlier paper of ours bhagwati and hamada 1974 in the context of a model of the country of emigration characterized by sticky wages and harrisstodaro 1971 type of unemployment in subsequent papers the tax has been analyzed also in the context of modified models still incorporating the unemployment phenomena by rodriguez 1975 and mcculloch yellen 1975 2 essentially these models analyze the impact of the income tax on emigrants incomes as arising primarily through the reduced differential

investment and hedging under a stochastic yield curve abstract this paper examines portfolio decisions involving both fixed and non fixed income securities two state variables the short term and the long term interest rates fully determine the bonds prices and partly influence the other assets prices we propose first a methodology for determining optimal portfolios in such a context and then use that methodology to solve the portfolio problem of investors whose long term bond holdings are constrained which generates undesirable interest rate risk that are hedged with futures contracts the individual futures positions which involve several hedging components and the futures market equilibrium open interest are derived and analysed

optimal consumption investment policies with undiversifiable income risk and liquidity constraints abstract this paper examines the continuous time optimal consumption and portfolio choice of an investor having an initial wealth endowment and an uncertain stream of income from non traded assets the income stream is not spanned by traded assets and the investor is not allowed to borrow against future income so the financial market is incomplete we solve the corresponding stochastic control problem numerically with the markov chain approximation method prove convergence of the method and study the optimal policies in particular we find that the implicit value the agent attaches to an uncertain income stream typically is much smaller in this incomplete market than it is in the otherwise identical complete market our results suggest that this is mainly due to the presence of liquidity constraints

international investment barriers in general equilibrium abstract this paper examines quantitative international investment barriers in a general equilibrium model the constraints force otherwise similar agents to hold different portfolios of risky assets we show that this induces lending and borrowing this in turn instroduces a hedging motive against shifts in the interest rate the factors affecting agents portfolio choice the allocation of capital across countries as well as the interest rate are charcterized we conjure that the equilibrium world interest rate will be lower in the constrained situations than with free capital flows

income taxes property values and migration we consider the effects of income redistribution when people can migrate from one country to another and when land within each country is heterogeneous taxes related to income can then affect property values and can induce migration which further affects property values we show that under these conditions a utilitarian government should never equalize after tax incomes if migration is impossible it may even transfer income from the poor to the rich reducing the rents earned by absentee landlords the redistributive tax on the rich may be higher or lower when the rich can migrate than when they cannot a rawlsian government in the absence of mobility will equalize after tax incomes under mobility rawlsian governments cut their taxes if and only if the relative pre tax income of the poor is sufficiently low

optimal linear income taxation in the presence of emigration abstract this paper examines optimal linear income taxation when individuals are able to escape taxation by migrating a model is presented in which closing the economy to migration must raise the optimal marginal tax however this result may be reversed under an alternative definition of a closed economy