signaling quality with a money back guarantee the role of transaction costs direct marketing is witnessing explosive growth as consumers increasingly purchase products from their homes their ability to judge the quality of products they buy is significantly reduced in this paper we study how money back guarantees can signal product quality in such environments we interpret product quality broadly to mean both the level of attributes promised as well as the firm s consistency in delivering on those promises key aspects of our formulation are the explicit consideration of transaction costs and alternative signals of product quality transaction costs are the costs the seller or buyer faces when redeeming a money back guarantee we show that money back guarantees signal quality by exploiting the higher probability of returns for a lower quality product and the attendant higher transaction costs however if the seller s transaction costs are very large then there are less costly ways to signal namely charging a high price we compare the signaling performance of 1 price 2 price with uninformative advertising and 3 price with a money back guarantee whereas uninformative advertising does not work at all in our model under certain conditions a money back guarantee is necessary to signal and under other conditions a money back guarantee is a useful supplement to price

dutch disease effect of oil rents on agriculture value added in middle east and north african mena countries abstract this paper investigates the effect of oil rents on agriculture value added in oil producing middle east and north african mena countries annual data from 1970 to 2011 panel cointegration tests by pedroni 1999 long ran panel causality tests by canning and pedroni 2008 and two step system gmm by blundell and bond 1998 are used in this study we find a negative relationship between oil rents and agriculture value added in the long run with a rather slow rate of short run adjustment of agriculture value added back to equilibrium after a boom in oil rents these results indicate that an oil sector boom is associated with a contraction in the agriculture sectors of the countries in the panel in the long run this is probably attributable to a resource movement effect from other economic sectors to the booming oil sector in these countries this serves as evidence of a dutch disease effect of an oil sector boom on agriculture in the mena countries in this study

mean variance theory in complete markets two paradigms in the pricing of risky assets are the complete markets model of arrow and debreu and mean variance pricing as embodied in the capital asset pricing model capm the former is primarily of theoretical interest in fact prior to the recent work of banz and miller 1978 and breeden and litzenberger 1978 there was little thought or hope of practical applications on the other hand the hegemony of the capm is due mostly to its apparent ease of applicability and to a lesser extent its empirical justification in a competitive market with no taxes transactions costs or institutional constraints on portfolio holdings the allocation of the available assets will be pareto optimal the end of period distribution of wealth or the consumption goods however will typically be pareto optimal only when there is available an arrow debreu security for each contingency since by definition a pareto superior reallocation is weakly preferred by all investors a complete set of arrow debreu markets should naturally arise provided they are not too costly to establish the complete markets model of arrow and debreu and the meanvariance capital asset pricing model capm are two paradigms of risky asset markets this paper provides an integration of these two theories we prove that the standard meanvariance separation theorem obtains in a complete market only if all investors have quadratic utility in addition the familiar capm pricing relation can hold for all assets in a complete market only if arbitrage opportunities exist on the positive side we show that the validity of this relation for the primary assets in a complete market is unaffected by the distribution of returns on the created financial assets

the state preference approach to general equilibrium in corporate finance abstract this paper attempts to implement the state preference approach in a multiperiod exchange economy the procedure is relevant for a further investigation of various important issues in corporate finance such as the results of modigliani and miller and the integration of the state preference and the mean variance approach to asset pricing

an equilibrium model of asset pricing with progressive personal taxes this paper examines how the progressive personal tax rate affects the equilibrium asset pricing model in a continuous time framework with progressive taxation it can be shown that the expected excess rate of return on a risky asset is an increasing function of i the covariance of asset return with aggregate consumption rate changes and ii the covariance of asset return with the aggregation of individual wealth change weighted by the investor s tax scheme progressivity index the capital asset pricing model derived in the absence of tax is shown to understate the expected excess rate of return and to have a misspecification error under the progressive tax scheme furthermore the expected excess rate of return can be decomposed as the consumption risk premium and tax premium the tax premium depends on the tax structure prevailing in the economy

learning to love the dutch disease evidence from the mineral economies abstract recent literature proposes that a booming minerals sector may not only lead to dutch disease effects it may also be a development curse mineral economy case studies have tentatively confirmed this recourse curse thesis this paper examines the long run economic and development performance of a more general grouping of mineral based economies and finds little corroborating evidence

dutch disease government policy and import demand in nigeria the effects of sectoral changes and government policies on import demand in nigeria are examined in the context of the oil shocks of the 1970s and 1980s a two equation model is estimated to determine real import demand and the real exchange rate the results show that import demand increased significantly in response to the boom induced squeeze on the agricultural sector furthermore by inducing and sustaining real exchange rate overvaluation expansionary government policies contributed to higher import demand even after the collapse in oil prices

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

the dutch disease in a developing country oil reserves in cameroon abstract noting that most of the literature on the dutch disease refers to developed countries this paper looks at the impact of an oil boom on a developing country when certain features of developing countries particularly the imperfect substitutability between domestic and imported goods are incorporated one of the standard dutch disease results can be reversed not all the traded goods sectors will contract a simulation with a computable general equilibrium model of cameroon reveals that the agricultural sector is most likely to be hurt whereas some of the manufacturing sectors will benefit this suggests possible areas for government intervention should it be warranted and may explain the differential performance between the agricultural and industrial sectors of oil exporting countries in the post 1973 period

the pricing of stock index options in a general equilibrium model this paper analyzes the pricing of stock index options in a simple general equilibrium model in this model the volatility of the stock index and the spot rate of interest are functions of a stochastic variable the paper investigates the biases that arise when using the black scholes model with the assumed volatility and interest rate dynamics it is shown that the model can in principle explain the biases observed in empirical work on stock index options

arbitrage and the existence of competitive equilibrium a general equilibrium model of markets for commodities and assets is considered the author develops the notion of a price system that admits no arbitrage opportunity and demonstrates the fundamenta l role of this concept for the theory of the existence of a competiti ve equilibrium a price system admits no arbitrage opportunity for a consumer if every bundle of desired commodities has a positive market value the author proves that the existence of a price system that a dmits no arbitrage opportunity for all consumers is sufficient for th e existence of an equilibrium copyright 1987 by the econometric society

the valuation of multivariate contingent claims in discrete time models there are several examples in the literature of contingent claims whose payoffs depend on the outcomes of two or more stochastic variables familiar cases of such claims include options on a portfolio of options options whose exercise price is stochastic and options to exchange one asset for another this paper derives risk neutral valuation relationships rnvrs in a discrete time setting that facilitate the pricing of such complex contingent claims in two specific cases joint lognormally distributed underlying variables and constant proportional risk aversion on the part of investors and joint normally distributed underlying variables and constant absolute risk aversion preferences respectively this methodology is then applied to the valuation of several interesting complex contingent claims such as multiperiod bonds multicurrency option bonds and investment options

uncertainty risk aversion and wta vs wtp we examine a previously unstudied category of exchange items in which the true value is unknown to both the buyer and seller at the time of exchange but becomes known to both at a future time after the exchange real world examples of such exchange items as in our study include forward contracts and fixed fee turnkey contracts we demonstrate that the discrepancy between the seller s willingness to accept wta and buyer s willingness to pay wtp increases with 1 the level of uncertainty about the exchange item s value and 2 the exchange parties level of risk aversion in a series of studies we manipulate and measure the level of uncertainty of the exchange item measure the level of risk aversion of the exchange parties and study the respective effects on decreasing the wtp while increasing the wta

external disturbances domestic policy responses and debt accumulation in nigeria abstract this paper provides a case study of the link between external shocks domestic policy responses and external debt accumulation in nigeria the indonesian experience during 1970 1989 is provided as a contrast for policy comparison a significant part of the increase in external debt in the two countries corresponds to financing of capital flight after 1981 current account deficits assumed greater importance in the accumulation of external debt the growth in external debt was caused in part by adverse external conditions the results of this study show that the nigerian debt crisis was exacerbated by inappropriate policy responses indonesia avoided a crisis by applying prudent real exchange rate management and fiscal restraint

a new explanation for the wtp wta disparity abstract we propose a new explanation for the wtp wta disparity in experiments and surveys uncertainty irreversibility and limited learning opportunities can generate commitment costs driving a wedge between wtp and wta we present experimental evidence that supports our hypothesis

the endowment effect in games abstract in a laboratory experiment we study whether the endowment effect exists in a social and strategic context we employ a within subjects design whereby participants are asked for their willingness to accept wta or willingness to pay wtp to play a series of 2 2 games in the second part of the experiment we study the endowment effect in lotteries with the same payoffs as the games in the first part our findings provide robust evidence for the endowment effect both in games and in lotteries with the size of the effect actually being larger in games than in lotteries we also find that the endowment effect can partly be attributed to optimism

predicting buyer seller pricing disparities numerous studies have shown that compensation demanded cd to give up a commodity often greatly exceeds willingness to pay wtp to obtain the same commodity even in incentive compatible experiments that penalize strategic misrepresentation observed cd wtp disparities are too large to be reconciled with traditional assumptions of economic rationality a prospect theory based behavioral framework for predicting cd and wtp is proposed which produces five distinct transaction encoding rules any one of which can in principle apply to a buyer or a seller according to this framework cd wtp gaps occur when buyers and sellers encode the prospective transaction differently and gaps can occur in multiple ways and vary in size depending on encoding the transaction encoding framework was tested in two experiments in experiment 1 model fits to subjects cd and wtp for lottery tickets were consistent with the hypothesis that buyers and sellers encode transaction problems differently moreover the quite large observed cd wtp gaps were explained fully by encoding when differences between buyers and sellers encoding processes were taken into account their estimated utility value and probability weighting functions did not differ the present framework and results show that the widely cited endowment effect is but one of several ways in which loss aversion can give rise to cd wtp gaps consistent with this broadened perspective experiment 2 demonstrated cd wtp gaps in the absence of an endowment effect and in the absence of rational economic causes the transaction encoding framework 1 provides a structured approach for predicting and testing the effects of a variety of task factors on pricing behavior and transaction outcomes and 2 reveals the useful property that in many cases the ratio cd wtp can be interpreted as a direct measure of the degree of loss aversion

booming sector and de industrialisation in a small open economy this paper presents a theoretical analysis of the dutch disease the phenomenon whereby a boom in one traded goods sector squeezes porfitability in other traded goods sectors both by directly bi

inflation employment and the dutch disease in oil exporting countries a short run disequilibrium analysis the author uses nontraded goods and labor shortages in the gulf countries the decline of the traded goods sector in oil producers dutch disease and the absence of employment benefits of higher oil revenues in latin american oil producers higher oil revenues can be likened to a transfer putting pressure on non oil traded nt goods prices and drawing resources out of the t sector the slope of the wage indexation line determines whether classical unemployment or repressed inflation results various policy measures are analyzed 3 references 8 figures

measuring consumers willingness to pay at the point of purchase abstract economists psychologists and marketing researchers rely on measures of consumers willingness to pay wtp in estimating demand for private and public goods and in designing optimal price schedules existing market research techniques for measuring wtp differ in whether they provide an incentive to consumers to reveal their true wtp and in whether they simulate actual point of purchase contexts the authors present an empirical comparison of several procedures for eliciting wtp that are applicable directly at the point of purchase in particular the authors test the applicability of becker degroot and marschak s 1964 well known incentive compatible procedure for assessing the utility of lotteries to measuring consumers wtp in three studies the authors explore the reliability validity and feasibility of the procedure and show that it yields lower wtp estimates than do non incentive compatible methods such as open ended and double bounded contingent valuation they show experimentally t

willingness to pay and willingness to accept how much can they differ comment i agree with the point made by edoh y amiran and daniel a hagen 2003 that there can be a substantial or even infinite divergence between the wta and wtp for a public good even where there is a nonzero elasticity of substitution between market goods and the public good provided that the indifference curves are asymptotically bounded with respect to market goods in the manner they describe this is an important point they are also correct to point out that the elasticity of substitution is a local concept whereas their asymptotic boundedness condition applies also for discrete changes my 1991 paper used a local analysis because it was following the structure of the analysis in robert d willig 1976 and alan randall and john r stoll 1980 i wanted to show that while randall and stoll appeared to extend willig s local result on wta versus wtp from price changes to changes in the quantity of a public good the relevant elasticity was in fact different and involved the substitution elasticity as well as the income elasticity i view these points by amiran and hagen as not two separate results but essentially the same result their asymptotic boundedness condition generalizes my zero elasticity of substitution condition to discrete changes the asymptotic boundedness condition can be expressed as follows assuming a bivariate utility function u x q and given a reference point x q associated with a reference utility level u u x q there exists some q q such that for all q q there exists no x such that u x q u in other words no amount of x can substitute for the reduction in public good from q to q q in the case of a zero elasticity of substitution q q but as amiran and hagen show in their theorem 1 this is unnecessarily restrictive when dealing with a discrete reduction in q furthermore their theorem 2 can be viewed as a special case of their theorem 1 in which q 0 which makes q an essential commodity it is well known in consumer theory that the wta to avoid the loss of an essential market good is infinite their theorem 2 extends this result to the case of an essential nonmarket good but as their theorem 1 shows essentialness is not necessary for an infinite wta the boundedness condition is the key and this implies a fundamental lack of substitutability between money market goods and the public good

information and the divergence between willingness to accept and willingness to pay abstract there is considerable empirical and experimental evidence that there is a divergence between willingness to accept compensation to give up a good and willingness to pay to obtain a good this divergence persists even when the good in question is small relative to income a result in apparent conflict with standard economic theory this paper develops a theoretical bidding model with costly information acquisition to explain this divergence the model generates a gap between offers to sell and bids to buy consistent with the experimental results we argue that the model does a better job of explaining empirical and experimental data than either of the two commonly invoked theoretical explanations the endowment effect and the substitution effect

capital structure equilibrium under market imperfections and incompleteness this paper generalizes miller s supply side equilibrium argument to other forms of capital market imperfections and incompleteness if corporations possess a comparative advantage in dealing with these imperfections they have an incentive to act as financial intermediaries corporations attempts to profit from these intermediation activities dictate an optimal capital structure for the corporate sector as a whole but in equilibrium the capital structure of any single firm is a matter of indifference in addition the positive role that corporate finance plays in completing the market restores standard perfect market results on asset pricing and the associated portfolio separation properties

currency options hedging and social value in early september 1982 a conference on exchange rate determination organized by l klein and w krelle took place at the deutsche bundesbank in frankfurt at this conference i presented a paper currency options theory and practicability this paper gave formulas for the pricing and hedging of currency options and showed by means of ex post simulations their practicability examples were given of how to hedge dm options on either the spot bond or forward market cp sondermann 1985a at that time markets for currency options did not yet exist but i was convinced that these markets would soon emerge since i the theory for pricing and hedging of currency options was now available ii the computational facilities were available and most importantly iii currency options do have a social value the stormy development of these markets which started soon after has proved this expectation correct that currency options have a social value has been questioned both on practical and theoretical grounds the first type of arguments stress the speculative element of such options and refer to the forward exchange markets as the approved means of hedging against foreign exchange risks this view overlooks the fact that only future currency streams which are expected with certainty can be hedged on forward markets if for some reason these future payments fail to realize or deviate from their expected value the hedger on the forward market may end up with a costly open position this may e g be the case in a tender situation currency options as a non redundant alternative to forward markets allow for a better allocation of exchange risks the social value of currency options is

adjustment and income distribution in an agricultural economy a general equilibrium analysis of cameroon abstract to distinguish policy packages that have favorable characteristics for both structural adjustment and income distribution this paper uses static and dynamically optimizing simulations of a computable general equilibrium cge model based on detailed country and household data from cameroon model results indicate that public spending to reduce transport and marketing costs are beneficial for the poor and for economic growth even at the expense of competing public investments

focusing on the forgone how value can appear so different to buyers and sellers we propose that buying and selling price estimates reflect a focus on what the consumer forgoes in the potential exchange and that this notion offers insight into the well known difference between those two types of value assessment buyers and sellers differ not simply in their valuation of the same item but also in how they assess the value buyers tend to focus on their sentiment toward what they forgo typically the expenditure and buying prices are thus heavily influenced by variables such as salient reference prices by the same token sellers tend to focus on their sentiment toward surrendering the item and selling prices are hence more heavily influenced by variables such as benefits of possessing the item four studies examining buying and selling price estimates of tickets for national collegiate athletic association basketball games offer consistent support for these ideas the studies show that naturally occurring differences among respondents in attitudes relating to the tickets that sellers forgo e g significance of the game corresponded more closely to variation in selling prices than in buying prices conversely measures relating to the expenditure e g respondents concern with money corresponded more closely to buying prices than to selling prices using controlled manipulations we then showed that changes in aspects relating to the game e g expected climate in the stadium affected selling prices more than buying prices but changes relating to the expenditure e g list price of the ticket influenced buying prices more than selling prices we also showed that drawing attention to the benefits of possessing a ticket before asking for the price estimates influenced buying prices more than selling prices supporting our claim that otherwise these benefits are naturally more salient to sellers than buyers similarly drawing attention to alternative uses of money before asking for price estimates influenced selling prices more than buying prices

framing influences willingness to pay but not willingness to accept the authors show with real and hypothetical payoffs that consumers are willing to pay substantially less for a risky prospect when it is called a lottery ticket raffle coin flip or gamble than when it is labeled a gift certificate or voucher willingness to accept in contrast is not affected by these frames this differential framing effect is the result of an aversion to bad deals which causes buyers to focus on different aspects than sellers buyers willingness to pay is influenced by the extent to which a risky prospect s frame is associated with risk experiment 1 as well as the prospect s lowest but not highest possible outcome experiment 2 sellers willingness to accept in contrast is influenced by a prospect s lowest and highest possible outcomes but not by the risk associated with its frame experiments 2 and 3 the framing effect on willingness to pay is independent of the objective level of uncertainty experiment 4 and can lead to the uncertainty effect the findi

the endowment effect rose tinted and dark tinted glasses the endowment effect predicted by prospect theory is a robust finding in behavioral decision theory extending recent examinations of the underlying processes we present evidence for differential perceptions of the traded item with sellers focusing more on positive features and less on negative features relative to buyers in experiment 1 sellers and buyers access information of differing valence in a free recall task experiment 2 utilizes error rates and response latencies to demonstrate systematic and differing patterns of errors and biases in reactions to valenced stimuli experiment 3 utilizes contrast effects to manipulate these foci thereby moderating the endowment effect

a new meta analysis on the wtp wta disparity abstract this study reports a new meta analysis of papers that elicit willingness to pay wtp and willingness to accept compensation wta measures of value for the same good we investigate the effects of type of good and several survey design features on the wtp wta disparity measured as the logarithm of the ratio of mean wta to mean wtp confirming horowitz and mcconnell s 2002 pioneering meta analysis we find the disparity is smaller for ordinary private goods than for public and non market goods that it is not solely an artifact of using hypothetical transactions or other weak experimental or survey methods and that it is smaller for studies using student subjects in addition we find that the disparity is smaller when subjects have experience valuing the good in real markets or through repeated experimental trials in contrast to horowitz and mcconnell we find the disparity is significantly smaller in studies using incentive compatible elicitation mechanisms the disparity is smaller in more recent studies an effect that is attributable only in part to changes in study characteristics