the structure of asset prices and socially useless useful information this paper relates the value of additional information to asset prices in a pure exchange setting the price structure of interest revolves around a pricing hypothesis the prices in an economy with less information are unbiased estimators of the prices that would obtain in a more informative economy two basic results are developed first if the incremental information is useless then the pricing hypothesis applies second if the pricing hypothesis is assumed valid then the information is valuable in a weak sense the results are also considered in the context of empirical research the case is made for viewing statistical tests of association between prices and signals as tests of the social value of information

on the relationship between volume reaction and consensus of investors implications for interpreting tests of information content associate professor university of chicago i gratefully acknowledge the generous assistance of nicholas dopuch and richard leftwich in the preparation and editing of this manuscript as well as comments and suggestions offered by the ohio state accounting colloquium i also acknowledge earlier correspondence with nils hakansson concerning the proof employed in this paper and jerold zimmerman concerning the issue of volume reaction any remaining errors are solely my responsibility accepted for publication july 1980 this is somewhat in contrast to discussion of the relationship between volume reaction and information when the information is distributed asymmetrically among investors copeland 1976 for example discusses a sequential information arrival model in which an element of information is disclosed at no cost to homogeneous traders one at a time during a trading period morse 1979 surveys more recent work on the effect of asymmetrically distributed information however information which is distributed asymmetrically is fundamentally different from information which is made publicly available in the former situation trading occurs because one group of investors has access to information not available to some other group whereas in the latter situation trading occurs despite the fact that all investors come to know the information simultaneously

spinoffs and wealth transfers the marriott case abstract this paper examines changes in bondholder and shareholder wealth resulting from the 1993 marriott spinoff it documents a wealth transfer from bondholders to shareholders and a decline in the total value of the firm following the spinoff announcement subsequent modifications to the spinoff plan reduced the bondholders loss but the value of marriott s notes and debentures remained 194 6 million below their pre announcement level on the distribution date industry adjusted shareholder gains during the same period were only 80 6 million transaction costs and inefficiencies resulting from the spinoff explain much of the decline in the total value of the firm

value of information in competitive economies with incomplete markets we study the value of public information in competitive economies with incomplete markets we show that generically the welfare effect of a change in the information available prior to trading can be in any direction there exist changes in information that make all agents better off and changes for which all agents are worse off in contrast for any change in information a pareto improvement is feasible that is attainable by a planner facing the same informational and asset market constraints as agents in this sense the response of competitive markets to changes in information is typically not socially optimal

statistical efficiency of double bounded dichotomous choice contingent valuation the statistical efficiency of conventional dichotomous choice contingent valuation surveys can be improved by asking each respondent a second dichotomous choice question which depends on the response to the first question if the first response is yes the second bid is some amount greater than the first bid while if the first response is no the second bid is some amount smaller this double bounded approach is shown to be asymptotically more efficient than the conventional singlebounded approach using data from a survey of californians regarding their willingness to pay for wetlands in the san joaquin valley we show that in a finite sample the gain in efficiency can be very substantial

asymmetries in ordered strength of preference models implications of focus shift for discrete choice preference estimation this paper explores potential focus shift asymmetries in an ordered strength of preference model applied to contingent choice data a focus shift occurs when respondents weight factors differently when assessing preference for an accepted scenario than they do when assessing preference for a rejected scenario and may imply that respondents do not refer to a single underlying preference function using data drawn from a survey which addressed preferences for watershed management the model results identified focus shift asymmetries in the ordered strength of preference model the paper discusses implications for policy survey design and discrete choice preference estimation

a theory of trading volume a theory of trading volume is developed based on assumptions that market agents frequently revise their demand prices and randomly encounter potential trading partners the model describes two distinct ways informational events affect trading volume one is consistent with conjectures made by empirical researchers that investor disagreement leads to increased trading but the observation of abnormal trading volume does not necessarily imply disagreement and volume can increase even if investors interpret the information identically if they also have had divergent prior expectations simulation tests support the model and are used to contrast the random pairing environment with costless market clearing volume is lower in the costly market and volume increases caused by an informational event persist after the event period this is consistent with existing empirical evidence and suggests that markets do not immediately clear all orders or that investors have demands to recontract

estimation using contingent valuation data from a dichotomous choice with follow up questionnaire reply abstract our original article proposed that the two yes no willingness to pay wtp responses produced by this survey format should be viewed as a pair of jointly distributed correlated discrete random variables the comparison model the conventional approach to estimation using these types of data contained a programming error correction alters the results from the comparison model but our original claim that estimation by conventional methods can produce misleading inferences if ours is the appropriate specification still stands this is especially true if negative wtp is precluded when e wtp is calculated

growth forecasts belief manipulation and capital markets abstract we analyze how a benevolent privately informed government agency would optimally release information about the economy s growth rate when the agents hold heterogeneous beliefs we model two types of agent conforming and dissenting the former has a prior that is identical to that of the government agency whereas the latter has a prior that differs from that of the government agency we identify both informative and uninformative equilibria informative equilibria are equilibria in which the government agency s equilibrium signal leads to a revision of beliefs we demonstrate that the uninformative equilibria can in fact dominate the informative ones in terms of ex post social welfare

moral hazard and the portfolio management problem this paper investigates the significance of nonlinear contracts on the incentive for portfolio managers to collect information in addition the manager must be motivated to disclose this information truthfully we analyze three contracting regimes 1 first best where effort is observable 2 linear with unobservable effort and 3 the optimal contract within the bhattacharya pfleiderer quadratic class we find that the linear contract leads to a serious lack of effort expenditure by the manager this underinvestment problem can be successfully overcome through the use of quadratic contracts these contracts are shown to be asymptotically optimal for very risk tolerant principals

estimating distributions of willingness to pay for heterogeneous populations random parameters logit models have emerged as a standard approach in estimating public preferences for a range of goods and services however to simplify calculation of welfare measures the marginal utility of income is often assumed to be constant across the population we show that by shifting distributional assumptions from marginal utilities to the welfare measures themselves a random parameters version of a censored logistic regression model cameron 1988 yields distributions of welfare measures more directly and without imposing any unnecessary assumption on the marginal utility of income we develop the theoretical framework for the model and apply it to contingent choice survey data for siting a noxious facility in rhode island in this application our proposed model and random parameters logit yield similar mean willingness to pay but welfare measures are more readily interpretable in the proposed model

market based empirical research in accounting a review interpretation and extension a decade and a half of the most concerted and ambitious research effort in accounting history is evaluated here it is the search into the relationship between publicly disclosed accounting information and the consequences of the use of this information by the major group of usersequity investors as such consequences are reflected in characteristics of common stocks traded in major exchanges this research effort known as market based accounting research mbar obtained its impetus from major developments in finance theory during the late 1950s and early 1960s these were the portfolio selection theory and its offspring the capital asset pricing model capm and the concept of informationally efficient capital markets ecm subsequent developments in information economics agency theory and optimal incentive signaling models were quickly incorporated into mbar while the impetus to this line of research came from other disciplines accounting was not only a beneficiary but also to a modest extent a benefactor mbar is relevant to the study of capital market efficiency the capm information economics and regulation this contribution distinguishes mbar from most accounting areas whose contributions to other disciplines are negligible in

changes in the financial market welfare and price effects and the basic theorems of value conservation this paper analyzes the impact on both welfare and equilibrium prices of changes in the financial market in a general equilibrium two period context previous papers have focussed on the securities effect tending to essentially ignore the equally important endowment effect that arises when market structure changes are implemented two forms of endowment neutrality and market structure changes which either preserve expand or shift allocational feasibility differentiate the main theorems which are based on arbitrary preferences and beliefs and substantially extend and modify extant results in particular earlier statements identified with value conservation are sharply moderated very roughly the paper yields the following implications for some of the more common changes in the market nonsynergistic corporate spinoffs and the opening of option markets have on balance strongly positive welfare effects nonsynergistic mergers tend to have strong negative welfare effects while the welfare effects of alternative risky debt structures tend to be ambiguous all of the preceding however may under plausible conditions be redistributive changes in the structure of the financial market have long been of interest to financial economists while such changes may take many forms it is perhaps surprising that only a few of the more common ones have been systematically studied foremost among these are changes which involve the firm s capital structure the relative amounts of debt and equity mergers and other special recapitalizations this paper analyzes the impact on both welfare and equilibrium prices of changes in the financial market in a two period context it differs from previous studies primarily in that it is based on a fully integrated general equilibrium approach similar to that employed in international trade analysis thus while the resulting mosaic contains previous studies as clearly recognizable fragments such as the classic paper of modigliani and miller 33 it also provides the necessary framework and tools for an evaluation of market structure changes of any type such as changes involving subordinated debt convertibles warrants mergers spinoffs and the opening of option markets

does anticipated information impose a cost on risk averse investors a test of the hirshleifer effect this paper theoretically and empirically investigates how the risk of future adverse price changes created by the anticipated arrival of information influences risk averse investors trading decisions in institutionally imperfect capital markets specifically i examine how the selling activity of individual investors immediately following an earnings announcement is influenced by the tradeoff between risk sharing benefits of immediate trade and explicit transaction costs imposed on such trades consistent with my theoretically derived predictions i find that investors current trading decisions are less sensitive to the incremental transaction costs created by short term capital gains taxes on trading profits as both the duration and intensity of the risk of future adverse price changes increase this evidence is consistent with an incremental cost to investors that results from the revelation of precise information which is commonly referred to as the hirshleifer effect

information and securities a note on pareto dominance and the second best a unified analysis is provided of two related problems the first concerns the welfare impact of changing the set of tradeable securities in an incomplete market economy the second concerns the welfare implications of changing the common information structure faced by all agents both problems arise from a common second best framework in which expanding the set of trading opportunities can lead to a pareto worsening journal of economic literature classification number 026 rl 1987 academic press inc in this note we provide a unified analysis of two related problems the first concerns the welfare impact of changing the set of tradeable securities in an incomplete market economy the second concerns the welfare implifications of changing the common information structure faced by all agents we will discuss apparent paradoxial results that arise in both problems using a single geometric example the example provides a clear illustration of the source of the apparent paradoxes both problems arise from a common second best framework by second best we mean the lipsey lancaster 20 idea of additional constraints on allocations over and above resource availability constraints our discussion brings together two related but distinct literatures the we are greatly indebted to james ohlson for many constructive comments and to david kreps and n v long for comments on a previous draft

optimality of the disclosure of private information in a production exchange economy this study provides an analysis of the effects on individual welfare of information revelation in a production exchange economy it is shown that the total effect of information revelation on an agent s utility level may be decomposed into three elements a price effect a shareholding effect and a production effect through this decomposition it is demonstrated that although a pareto improvement need not result from information revelation there are perspectives from which the release can be considered beneficial the major conclusion of previous studies of information revelation in a heterogeneous beliefs economy is that the release will not result in general in an economic equilibrium pareto superior to that which would have existed without the disclosure this result by itself does not give an understanding of how information revelation affects agents utility nor does it give much guidance to those regulatory bodies charged with deciding whether or not to mandate information disclosure this study provides further insight into the effects on individual welfare of information revelation in a general production exchange economy it is shown that the total effect of information revelation on an agent s utility level may be decomposed into three elements a price effect a shareholding effect and a production effect the price effect is the change in the agent s utility caused by the change in prices resulting from the revelation of information keeping shareholdings and production fixed the shareholding effect is the change in his utility resulting from the change in his shareholdings caused by the release of information the production effect is the change in his utility caused by the change in the production plan of each firm due to the information revelation conditions are given under which the signs of these three effects will be positive or negative for a given agent the finding that the production effect is positive for some agents and negative for others is of particular interest since it is counter to a result of arrow and hirshleifer they have argued that owners of production processes gain utility by having information revealed before production plans are fixed because they are then able to adjust those plans to account for the additional information it is shown here that such a conclusion can only be made in general when owners of each production process have homogeneous beliefs finally it is

sensitivity of willingness to pay estimates to bid design in dichotomous choice contingent valuation models this paper addresses the sensitivity of dichotomous choice contingent valuation method dc cvm based mean willingness to pay wtp estimates to the dc cvm sample design and to alternative measures of wtp this issue is examined both analytically and empirically the analysis of ten different dc cvm data sets revealed a sensitivity in estimated mean wtp to the sample design and to the measure chosen to calculate mean wtp

are the economic costs of stabilising the atmosphere prohibitive abstract macro economic studies of the costs of reducing co2 emissions generally estimate the global cost of stabilising the atmospheric concentrations of co2 in the range 350 550 ppm in trillions of usd this creates the impression that the cost of co2 reductions is so large that it threatens economic development but presented in another way a completely different picture emerges there is widespread agreement amongst the more pessimistic macro economic studies that stringent carbon controls are compatible with a significant increase in global and regional economic welfare even if the cost of co2 abatement rises to 5 of global income per year by the end of this century this reduction is minor compared with the tenfold increase in global income that is expected since income is assumed to grow by a couple of percent per year the trillion usd cost could also be expressed as a few years delay in achieving an order of magnitude higher income levels similar observations can also be made as regards near term abatement targets such as the kyoto protocol a more widespread recognition of the fact that carbon abatement policies will only marginally affect economic growth is likely to increase the willingness to introduce carbon abatement policies

sufficient conditions for public information to have social value in a production and exchange economy conditions are derived under which all consumers in a production and exchange economy will prefer at least weakly disclosure of public information to no such disclosure the conditions involve consumer endowments the allocative efficiency of the financial market and value maximizing behavior by firms cases exist where consumers will prefer disclosure of public information in a production and exchange economy although they would be indifferent to such disclosure in an otherwise similar pure exchange economy the difference in results is due purely to the fact that in production and exchange economies information may be used to reallocate resources across time and firms thus highlighting the fundamental difference between the role of information in pure exchange and in production and exchange economies

a satisfactory benefit cost indicator from contingent valuation abstract standard economic concepts are used to develop a model of individual behavior when subject to the constraints of the contingent valuation choice context the model yields refutable consequences that are consistent with previously reported empirical findings including some that have been thought to be anomalous the model is used to show that different contingent valuation formats have predictably different performance characteristics notably the hicksian compensating measures are satisfactory benefit cost indicators when elicited using any one of several formats identified in the text of the formats examined one form of a policy referendum appears to have the most satisfactory characteristics overall we conclude that contingent valuation is a progressing research program

heterogeneous preferences and aggregation in environmental policy analysis a landfill siting case in many studies of nonmarket resources economists have data to disaggregate results according to subpopulations within the full study population disaggregated results can increase the usefulness of economic analyses improve public confidence in the results and permit public officials to assess equity concerns we outline an approach to obtain disaggregated results when characteristics of individuals may identify distinct preferences the approach is applied to public preferences regarding landfill siting decisions the discussion explores the implications of disaggregated results for policy decisions for bias in aggregate willingness to pay estimates and for nonmarket research methodologies

the use of mathematical models in financial accounting well over a year ago it was proposed that i write a survey paper for this conference which discussed the role of mathematical models in financial accounting the difficulty with this assignment is that mathematical models have been used to address a wide variety of issues in financial accounting and a paper which touched on all of them would probably be unable to examine any single one in depth therefore i have chosen in financial accounting three popular mathematical modeling themes and have interpreted these themes in the context of a competitive equilibrium market model to lend greater cohesiveness to the discussion i refer to the three topics chosen as 1 assessing the consequences of public disclosure 2 formalizing the notion that markets are efficient with respect to information and 3 understanding the effect of increased public disclosure on private incentives to acquire information other areas in financial accounting which use mathematical models but are not discussed here include income measurement valuation models i e models which map accounting variables or other information into equi

measuring the difference in mean willingness to pay when dichotomous choice contingent valuation responses are not independent dichotomous choice contingent valuation surveys frequently elicit multiple values in a single questionnaire if individual responses are correlated across scenarios the standard approach of estimating willingness to pay wtp functions independently for each scenario may result in biased estimates of the significance of the difference in mean wtp values this paper applies an alternative bivariate probit approach that explicitly accounts for correlation across errors in the estimation of wtp and mean wtp using data from three separate dichotomous choice contingent valuation studies this correlation is demonstrated to have an effect on the significance level of mean wtp difference tests

a new paradigm for valuing non market goods using referendum data maximum likelihood estimation by censored logistic regression abstract this paper challenges the w m hanemann amer j agr econom 66 332 341 1984 and c sellar j p chavas and j r stoll j environ econom management 13 382 390 1986 utilizations of logit models to estimate the value of non market resources from referendum survey data these data are more informative than conventional choice data the random utility interpretation of logit models is therefore too restrictive bypassing the utility function entirely it will be shown that parameters and standard errors for utility theoretic inverse hicksian demand functions can be extracted directly and much more simply estimated demand functions need not be limited to those corresponding to the linear in parameters utility difference specifications which can be handled by packaged logit programs

trade with heterogeneous prior beliefs and asymmetric information no trade theorems have shown that new information will not lead to trade when agents share the same prior beliefs this paper explores the structure of no trade theorems with heterogeneous prior beliefs it is shown how different notions of efficiency under asymmetric information ex ante interim ex post are related to agents prior beliefs as well as incentive compatible and public versions of those efficiency concepts these efficiency results are used to characterize necessary and sufficient conditions on agents beliefs for no trade theorems in different trading environments

what do we learn from the price of crude oil futures summary despite their widespread use as predictors of the spot price of oil oil futures prices tend to be less accurate in the mean squared prediction error sense than no change forecasts this result is driven by the variability of the futures price about the spot price as captured by the oil futures spread this variability can be explained by the marginal convenience yield of oil inventories using a two country multi period general equilibrium model of the spot and futures markets for crude oil we show that increased uncertainty about future oil supply shortfalls under plausible assumptions causes the spread to decline increased uncertainty also causes precautionary demand for oil to increase resulting in an immediate increase in the real spot price thus the negative of the oil futures spread may be viewed as an indicator of fluctuations in the price of crude oil driven by precautionary demand an empirical analysis of this indicator provides evidence of how shifts in the uncertainty about future oil supply shortfalls affect the real spot price of crude oil copyright 2010 john wiley sons ltd

toward a theory of financial accounting welfare and public information in this paper we employ the concepts of neoclassical welfare economics to consider the role of publicly available information in various market configurations modeling pure exchange economies the need for such a study arises for several reasons first while the existing process of producing and disseminating accounting information may with some oversimplification be described as generating publicly available information there has been no systematic study of the effects of such a process on either the allocational efficiency of a market or on the broader welfare implications of such information for the participants transacting in such a market second the existing literature fails at least to some extent to capture the flavor or spirit of the role of public information in a market setting at first glance it might appear that information would have no social benefit in a pure exchange economy since it does not increase the aggregate supply of consumptive goods across states and dates as will be demonstrated this impression is not justified as a general conclusion the important dimension of information is that it affects perceived risks

the price effect of option introduction this paper examines the price effect of option introduction from 1974 to 1980 the introduction of individual options causes a permanent price increase in the underlying security beginning approximately three days before introduction the price effect appears to be associated with introduction and not announcement throughout the sample period excess returns volatility declines with option introduction systematic risk is unchanged there is a positive relation between the price increase and a measure of activity in the options market copyright 1989 by american finance association

notes on optimality of rational expectations equilibrium with incomplete markets abstract this paper shows that under certain conditions an economy with securities and post state spot markets can support rational expectations equilibria of economies in a partial arrow debreu regime of incomplete contingent markets using these conditions examples are constructed to show that non optimal equilibria might exist for the securities regime and introduction of additional securities might make everyone worse off these examples are shown to be robust and valid in a more general context than those of hart j econ theory 11 1975 418 443

decision making when choices are complex a test of heiner s hypothesis this paper explores heiner s hypothesis concerning a gap between the cognitive ability of decision makers and the difficulty of decisions the c d gap we discuss the implications of decision heuristics for coefficient estimates when uncertainty is faced by decision makers where the level of uncertainty varies with complexity statistical analysis strongly supports the presence of a c d gap and provides evidence supporting the use of decision heuristics the results of both direct and indirect methods suggest that mixed decision strategies may be used we also find that complexity effects can have important implications for welfare analysis

the value of information in efficient risk sharing arrangements suppose that agents share risks in competitive markets we show that better information makes everyone worse off if the economy has a representative agent that is the economy s demand for state contingent consumption equals the demand of a hypothetical agent who owns all the economy s wealth the representative agent moreover is normatively unrepresentative although each agent dislikes information the representative agent is indifferent although we emphasize pure exchange our results imply that a representative agent model might seriously misstate the welfare effects of improved information in an economy with production and risk sharing even if it performs well otherwise

strength of preference indicators and an ordered response model for ordinarily dichotomous discrete choice data abstract recent environmental regulations raise the importance of accurate survey based methods to estimate environmental values while interviewing costs stimulate research to improve dichotomous choice survey methods this paper proposes using strength of preference indicators along with dichotomous contingent response data we model strength of preference indicators as quasi cardinal measures using an ordered response model we find that strength of preference indicators provide substantial efficiency gains while increasing respondents effort minimally with evidence that interpersonal comparison of preference ratings induces no bias the ordered response model of utility and willingness to pay is superior even in predicting the binary choice results

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

bankruptcy limited liability and the modigliani miller theorem this paper examines the validity of the modigliani miller theorem in the presence of bankruptcy the theorem asserts that the value of a firm and the set of return patterns that the capital markets offer to private investors are independent of firm debt equity ratios the usual proof of the theorem is based on the presumption that in perfect capital markets borrowing by firms and borrowing by individuals can be perfect substitutes it is unclear whether this presumption is valid when there is a positive probability that either the firm or the individual who borrows to invest in the firm goes bankrupt on the one hand joseph stiglitz 1969 and robert merton have argued that the modigliani miller theorem remains valid even with bankruptcy if agents who borrow to invest in a firm can limit their liability to the amount of collateral they put up on the other hand vernon smith 1972 has argued that a margin loan which is secured by a pure equity collateral has a different return pattern from a direct loan to the firm and cannot serve as a substitute for the latter see also david baron smith s argument raises a number of issues first it brings out the important fact that return patterns for limited liability borrowing and lending depend on the composition of the portfolio that serves as collateral if a firm goes bankrupt a pure equity collateral is worthless whereas a collateral that contains some bonds may still earn a positive return because the bonds have a privileged claim to the firm s remaining assets in general margin contracts with different collateral compositions will generate different return patterns both for the borrower and the lender given this multiplicity of return patterns on margin loans one would not expect that all margin loans can be used as substitutes for direct loans to the firm this intuition is confirmed by smith s demonstration that a particular margin loan namely the loan on pure equity collateral cannot serve this purpose the question remains open whether this is actually needed for the modiglianimiller theorem it might be enough if some appropriate margin loan could be used as a substitute for lending to the firm in pursuing this problem one finds a gap in the standard proof of the modiglianimiller theorem usually one applies an arbitrage argument to show that as a firm changes its debt equity ratio investors in shares and bonds adjust their portfolios so as to leave their overall return patterns unchanged no such arguments are given for other securities related to the firm in particular for margin investments and for margin loans that serve to finance those margin investments without an analysis of professor of economics university of bonn research on this paper was supported by nsf grant soc 75 13437 at princeton university and by the deutsche forschungsgemeinschaft i have benefited from the advice of dwight jaffee and an anonymous referee in a similar vein stiglitz 1972 asserts the value of the firm decregses because there is a divergence in the estimation of the chances of bankruptcy between the lender and the borrower p 467 this analysis rests upon a form of market segmentation that is without economic merit in his model there are two groups of agents optimists and pessimists the optimists invest all their wealth in the firm s equity valued to make the rate of return equal to that on the riskless asset the pessimists are indifferent between the risky firm s bonds and the riskless asset it follows that the optimists being more optimistic than the pessimists must prefer the risky bond to the riskless asset and hence to the equity yet stiglitz assumes that the optimists invest in the equity and not in the risky bond of course if one group invests all its wealth into one asset that asset need not satisfy a marginal equality condition at all a correct analysis of his model leads to the results of this paper

measuring welfare effects of unbundling financial innovations the case of collateralized mortgage obligations abstract the proposition that market extending financial innovations enhance welfare has strong theoretical support however quantification of these welfare benefits has previously been unavailable in this paper we demonstrate that such quantification is possible for market extending innovations that unbundle an existing asset by selling its cash flows in two or more parts we apply this approach to a prominent recent example of an unbundling innovation collateralized mortgage obligations and find the benefits to have been substantial

informational efficiency and welfare in the stock market abstract in an overlapping generations model each generation invests a given budget into a portfolio consisting of risky shares and a riskless asset in each period all agents receive information about the future dividends of the shares there is a unique stationary equilibrium this equilibrium is not constrained efficient in the sense that there exists a non market clearing share price such that all agents would be better off if the shares were exchanged at this price further for certain stochastic environments the public information is socially harmful and we derive a necessary and sufficient condition for this to occur

a general equilibrium analysis of option and stock market interactions the traditional pricing methodology in finance values derivative securities as redundant assets that have no impact on equilibrium prices and allocations this paper demonstrates that when the market is incomplete primary and derivative asset markets generically interact the valuation of derivative and primary security prices depend on the contractual characteristics of the derivative assets available in a version of the mossin mean variance model the authors analyze an equilibrium in which a call option derivative asset is traded and the equilibrium stock price primary asset increases when the options market is opened copyright 1991 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

rio 20 looking back at 20 years of environmental and resource economics twenty years on from the rio 92 conference we must face the fact that there have been a few successes but more failures scientific complexity uncertainty short termism inherent in politics the free rider problem and issues of fairness are part of the explanation for the lack of progress but we point to more fundamental motivational problems it is time to assess our responsibility as economists in the field of environment and resources our scientific contribution has been misleading because our models are structurally incapable of addressing major concerns the cost benefit test is not fit to assess large scale resource conservation projects including climate abatement this understanding was already present during the rio 92 summit but the problems while identified have not been resolved twenty years later the contribution from theory through the sustainability paradigm of non decreasing welfare has turned out ineffective it does not provide us with tools for designing a better future for our children instead it risks choosing a constant welfare path with knowledge increasing but natural resources deteriorating while not properly analyzing the richer possibilities for a better future that nature and creativity imply it is time for our profession to search for a more constructive contribution in theory and practice

allocation of information by majority decisions abstract in this paper the allocation of information by a two stage voting procedure is discussed we define and analyze the value of public information in this framework we show that the median voter for the decision on the project is also the median voter on the information decision moreover a majority always prefer the public disclosure of information from a utilitarian view the average costs of the project and the tax burden of the informationally indifferent voter determines the social desirability of public information

optimal experimental design for double bounded dichotomous choice contingent valuation the double bounded dichotomous choice model is becoming popular in the contingent valuation literature this technique considers the responses to two bids the second one being determined according to the response to the first and it has been shown to be statistically more efficient than the standard single bounded model in this paper the issue of the optimal choice of bid values for the double bounded logit model is addressed these designs are derived to satisfy the d optimal c optimal and fiducial method criteria

starting point bias in dichotomous choice valuation with follow up questioning abstract follow up questions are frequently used to improve the efficiency of dichotomous choice contingent valuation questionnaires however a number of authors e g 12 16 have noted a significant difference between the wtp distributions implied by initial and follow up question responses this paper investigates starting point bias as one explanation for the phenomenon we develop a model of starting point bias in the context of dichotomous choice questioning with follow up using a monte carlo simulation to illustrate the potential bias imparted to wtp estimates an application is provided based on data from a cv study in northcentral iowa

evaluating impacts from noxious facilities including public preferences in current siting mechanisms abstract this paper describes an approach to facility siting that ranks potential sites in terms of their social impacts a contingent choice survey based on paired comparisons is used to construct a utility index to rank sites consistent with predicting results of a hypothetical referendum based on the attributes of the sites the method is likely to be acceptable to public decision makers since it is analogous to site scoring methods that have been commonly used indeed our approach is currently being employed as part of a larger landfill site selection process in the state of rhode island

testing willingness to pay models of discrete choice contingent valuation survey data this paper considers models of willingness to pay wtp based on dichotomous choice contingent valuation survey data and examines the effect of the survey design on tests of goodness of fit simulations show that eliciting single binary responses result in tests that have low power in detecting departures from the maintained distribution of wtp unless the sample size is truly large the power of the tests improves if a follow up question and a moderate number of sets of bid values are used and if the bids are not placed on the extreme tails of the wtp distribution

a note on the welfare consequences of new option markets this note extends existing results on the conditions under which the opening of option markets permits a pareto improvement in welfare specifically conditions supplementary to those set forth in dybvig and ingersoll 4 and hakansson 5 are identified these results thus expand the universe of known cases in which trading in options has no negative welfare consequences welfare effects arise from changes in investors choice sets the opening of option markets can affect the choice sets of investors in two ways1 first by augmenting the existing financial market structure and second by altering the equilibrium relative prices of assets in general the two are not separable thus welfare effects should be considered within the context of an equilibrium model2 hakansson examines the nature of redistributive effects in an equilibrium model where investors utilities are arbitrary he identifies necessary and sufficient conditions for there to be no redistributive welfare effects following the opening of option markets for this result either the endowment in the richer market structure must be the equilibrium allocation in the original structure his theorem 6 or the two equilibria must share a common implicit state contingentclaim price vector theorem 7 in the model set forth below the conditions of theorem 6 are not satisfied and the conditions of theorem 7 are satisfied trivially dybvig and ingersoll examine the effect on capm equilibrium relative prices of the addition of an option market section iii they examine two cases in the first equilibrium relative prices are not affected when investors have homogeneous quadratic utilities in the second with heterogeneous utilities the capm pricing relationships break down in the model presented here equilibrium pricing relationships are preserved even though there is heterogeneity among investors

the impact of the listing of options in the foreign exchange market abstract this paper documents the impact of the introduction of foreign currency options and options on foreign currency futures on the underlying securities we find that the volatility of exchange rates decreases following the listing of options for a majority of the currencies under consideration in addition we find that trading volume and open interest in currency futures increases after option introduction this evidence is consistent with the notion that derivative securities are important innovations for stabilizing and increasing liquidity in the market for the underlying assets

central bank secrecy interest rates and monetary control we construct a dynamic rational expectations model of the federal funds and deposit market that provides a rationale for central bank secrecy about current monetary aggregate objectives in this analysis the trading desk values secrecy because it reduces the influence of monetary control policy on interest rates we then examine actual u s experience with monetary control and determine that the reserve bias predicted by the model is present in the data from 1978 to 1985 finally we demonstrate that central bank secrecy may not lower the value of commercial banks

using conjoint analysis to derive estimates of compensating variation abstract we use several approaches to derive estimates of hicksian compensating variation from conjoint ratings data the different estimation approaches produced mixed results with respect to consistency with utility theory statistical significance of key variables magnitude of welfare estimates and confidence bounds on welfare estimates these findings suggest conjoint analyses are not a panacea for the problems being debated regarding contingent valuation and travel cost methodologies and conjoint questions appear to share many of the advantages and disadvantages associated with dichotomous choice contingent valuation questions

the spinoff and merger ex date effects this article shows that some of the wealth gains from financial decisions involving changes in security form occur on predictable ex dates for a sample of 113 spinoffs during 1964 to 90 we document an average excess return of 3 0 percent on ex dates roughly the same magnitude as the average announcement date return we conjecture that the spinoff ex date return arises because the parent and subsidiary stocks attract different investors who prefer to buy the separated shares after the ex date we also document that on average the target shareholders in stock for stock mergers earn an excess return of 1 5 percent on merger ex dates recent years have witnessed a large increase in restructuring programs that include divestitures for example kaplan and weisbach 1992 report that 44 percent of a sample of large acquisitions completed in the 1970s and early 1980s had already been divested by the end of the 1980s most divestitures are accomplished by selling an unwanted subsidiary or division to another company or a group of investors for cash based on a casual survey of transactions reported in the mergers and acquisitions magazine this divestiture form is commonly known as a selloff in many cases however the parent company relinquishes control of a subsidiary by simply distributing the subsidiary shares as a nontaxable stock dividend to current stockholders this latter divestiture form is known as a spinoff and has been gaining

discrete choice under preference uncertainty an improved structural model for contingent valuation abstract this paper is concerned with discrete choice contingent value estimation in the presence of response errors we attempt to extend the theoretical frameworks developed by hanemann 1984 amer j agric econom 66 332 341 and cameron 1988 j environ econom management 15 355 379 by introducing preference uncertainty with individual respondents we assume that respondents have incomplete knowledge about their true valuation of a nonmarket resource and thus may give wrong yes no answers on whether or not to pay a given bid amount for the resource a post decisional confidence measure for each observed yes no answer is elicited for characterizing the degree of preference uncertainty with the help of this confidence measure we develop an improved structural model for deriving value estimates data from a forest environment valuation survey are used for the empirical estimations

sufficient and necessary conditions for information to have social value in pure exchange this paper extends corrects and unifies earlier statements concerning the social value of public information as well as the no trading conditions in pure exchange sufficient and necessary conditions are provided for both the single period and two period cases in a postsignal trading model the social value of information is shown to be closely linked to the allocational efficiency of the market the degree of homogeneity of prior beliefs and of information structures the time additivity of preferences and the efficiency of endowments we conclude that the case in favor of public information is much stronger than previously suggested

market response to financial reports abstract a two date rational expectations model is analyzed at the first date traders can privately acquire a costly signal that provides imperfect information about a public report that will be issued at the second date equilibrium characterizations are provided for the fraction of traders that become informed and the informativeness of the first date price as well as the price change variance and the expected trading volume at the second date comparative statics identify how the above variables are influenced by changes in the information content of the public report and in particular how market phenomena at the public release date are influenced by endogenous prior information acquisition and trading in response to the forthcoming public release

on the positive role of financial intermediation in allocation of venture capital in a market with imperfect information this paper develops a theory of financial intermediation that highlights the contribution of intermediaries as informed agents in a market with imperfect information we consider a venture capital market where the entrepreneurs select the qualities of projects and their perquisite consumptions about which the investors are imperfectly informed it is shown that when all investors have positive search costs the entrepreneurs are induced to offer the unacceptable inferior projects lemons only and the investors will not enter the venture capital market but put their funds in other low return investments an undesirable allocation of resources beginning with an initial undesirable situation the financial intermediaries may evolve as informed agents that induce a pareto preferred allocation leading the investors to a higher welfare state we focus our analysis on the existence of intermediation equilibra when the market for intermediation services is competitive the distribution of returns on projects the fees charged by intermediaries and the fraction of institutional holdings are all endogenous in equilibrium it is shown that i there cannot be a competitive intermediation equilibrium with very high institutional holdings and ii in other cases multiple equilibra may exist but the one with the highest institutional holdings dominates the others in a pareto sense

informed traders and limit order markets abstract we consider a dynamic limit order market in which traders optimally choose whether to acquire information about the asset and the type of order to submit we numerically solve for the equilibrium and demonstrate that the market is a volatility multiplier prices are more volatile than the fundamental value of the asset this effect increases when the fundamental value has high volatility and with asymmetric information across traders changes in the microstructure noise are negatively correlated with changes in the estimated fundamental value implying that asset betas estimated from high frequency data will be incorrect

consequences of using different question formats in contingent valuation a monte carlo study monte carlo experiments were conducted to compare regression parameter and willingness to pay wtp estimates using the contingent valuation method s referendum and payment card questioning formats strategic bias was controlled by making responses consistent with the true wtp two wtp models were constructed linear and log linear in explanatory variables based on the efficiency and mean squared error criteria the payment card model was superior to the referendum model however neither model outdid the other when the unbiasedness criterion was used the performance of either model depends on the choice and distribution of the bids and payment card categories

reassessing the impact of option introductions on market quality a less restrictive test for event date effects prior research concludes that option introductions improve the average liquidity of the underlying stocks we develop an improved generalizable test to assess whether market quality changes occur on or near an event date applying this method to option listing events we conclude that options do not systematically improve the market quality of the underlying security rather the market quality of the underlying security improves before the listing decision hazard model tests indicate that improving liquidity is a selection criterion in the option listing decision moreover these tests suggest that the size of a stock s bid ask spread is the single most important option listing determinant this study reexamines the impact of equity option introductions on stock market liquidity previous studies find an improvement in market quality charac teristics after option introductions and conclude that options improve the quality of the underlying market 1 in this paper we make several new contributions first we present and adopt a more flexible empirical tool for identifying regime shifts when event selection may be endogenously determined second using this method we reverse two major findings of the existing literature that option in troductions reduce spreads and increase volume finally we find that the bid ask spread is an important and perhaps the most important determinant of the option

the impact of energy derivatives on the crude oil market we examine the effects of energy derivatives trading on the crude oil market there is a common public and regulatory perception that derivative securities increase volatility and can have a destabilizing effect on the underlying market consistent with this view we find an abnormal increase in volatility for three consecutive weeks following the introduction of nymex crude oil futures while there is also evidence of a longer term volatility increase this is likely due to exogenous factors such as the continuing deregulation of the energy markets subsequent introductions of crude oil options and derivatives on other energy commodities have no effect on crude oil volatility we also examine the effects of derivatives trading on the depth and liquidity of the crude oil market this analysis reveals a strong inverse relation between the open interest in crude oil futures and spot market volatility specifically when open interest is greater the volatility shock associated with a given unexpected increase in volume is much smaller

good disclosure bad disclosure we study the implications of public information in a model where market prices convey information to relevant decision makers and the uctuation of market prices is driven by multiple factors disclosure has a positive direct eect of providing new information and an indirect eect of changing the price informativeness if disclosure is about a variable of which real decision makers are well informed then the indirect eect is also positive so that the direct eect is ampli ed leading to a positive overall eect on real e ciency if disclosure is about a variable that real decision markers care to learn much then the indirect eect is negative and the direct eect is attenuated moreover in markets which aggregate private information eectively the negative indirect eect can dominate so that disclosure can harm real e ciency

speculations in option markets enhance allocation efficiency with heterogeneous beliefs and learning abstract many studies investigate the impact of heterogeneous beliefs in the first moment while very few in the second moment this is partially due to continuous time setup which makes it difficult to incorporate heterogeneous beliefs in the second moment in a two period exponential normal model with bayesian learning i demonstrate that heterogeneous prior variances give rise to the economic value of option markets investors speculate in option market and public information improves allocation efficiency of markets only when there is heterogeneity in prior variances heterogeneity in mean is neither a necessary nor a sufficient condition for generating speculations in option markets with heterogeneous beliefs options are non redundant assets which can facilitate side betting and enable investors to take advantage of the disagreements and the differences in confidence this fact leads to a higher growth rate in the investors certainty equivalents and thus a higher equilibrium interest rate furthermore option exhibits a unique feature of enabling signal precision to affect the ex ante risk premium of underlying asset which quadratic derivative and stock do not have

blackwell s ordering and public information abstract we characterize a precise comparative static on welfare and the amount of public information in an economy under uncertainty results dating to hirshleifer amer econom rev 61 1971 561 have suggested that information can have negative value in such a setting but counterexamples using competitive equilibrium outcomes have suppressed general results to this effect we show that under the solution concept of implementable allocations the negative relationship between more public information in the sense of blackwell and welfare is fully general furthermore blackwell s ranking is necessary as well as sufficient to obtain our ranking and hence ours provides an equivalent characterization of his ordering

design of sequential experiments for contingent valuation studies abstract sequential experimentation is recommended as an alternative to the usual one or two shot approach to contingent valuation surveys the sequential c optimal approach is introduced and developed and it is compared to the established parametric and non parametric sequential procedures it is shown to be an improvement in terms of statistical precision in a finite sample over the standard sequential procedures

recreation demand models with taste differences over people we estimate random parameter logit models of anglers choice of fishing site the models generalize logit by allowing coefficients to vary randomly over anglers rather than being fixed the models do not exhibit the restrictive independence from irrelevant alternatives property of logit and can represent any substitution pattern estimation explicitly accounts for the fact that the variation in coefficients over anglers induces correlation in unobserved utility over trips by the same angler willingness to pay for improved fish stock and the value to anglers of specific sites are calculated from the models and compared with the estimates obtained from a standard logit model

security price reactions around corporate spin off announcements abstract we examine security price reactions around the announcements of 123 voluntary spin offs by 116 firms between 1963 and 1981 involving a pro rata distribution of the common stock of a subsidiary to the stockholders of the parent firm the median spin off in the sample is 6 6 of the original equity value and is associated with an abnormal return of 7 0 from 50 days prior to the announcement through completion of the spin off no evidence is found to indicate the gains to stockholders represent wealth transfers from senior securityholders over the entire event period we find positive gains for firms engaging in spin offs to facilitate mergers or to separate diverse operating units but negative returns to firms responding to legal and or regulatory difficulties in the two day interval surrounding the first press announcement we find positive average excess returns for all groups

class shares and economies of scope abstract this paper examines the allocative role of class shares that pay dividends based upon the performance of the individual activities of multi activity firms the firms considered operate under economies of scope and technological uncertainty in an incomplete asset market investor unanimity about the choice of production plans and a constrained pareto optimum are attained when all firms in the economy issue a class of shares for each of their activities partial issuance of class shares leads to a pareto superior allocation if the ensuing changes in production plans are individually rational

structured pluralism in ecological economics a reply to peter soderbaum s commentary abstract peter soderbaum argues in his commentary concerning my article on sustainability economics remig 2015 for more open and radical ecological economics i agree with that statement however i reject soderbaum s interpretation that my arguments foster mainstreamed ecological economics or dictatorship in my critique of sustainability economics i raised several issues that have remained unspecified and that potentially lead to unsustainable development patterns once put into practice soderbaum does not reply to these conceptual challenges of sustainability economics in this commentary i argue that structured pluralism dow 2004 is a constituent element of ecological economics i welcome peter soderbaum s proposal for a discussion about the definition of economics and suggest to rely on ronald coase s proposal to define economics as a science that studies the working of the economic system i conclude that sustainability economics in its current form is closer to neoclassical than ecological economics

long term substitutability between environmental and man made goods abstract substitutability between environmental and man made goods plays a major role in the sustainability debate the notion of substitutability covers a continuous spectrum with perfect substitutability at one end and poor substitutability at the other in this paper it is shown that if economic growth sustains a sharp distinction emerges between perfect and poor substitutability without any intermediate interpretation of substitutability if poor substitutability prevails environmental resources will eventually constitute the major part of total consumption value we relate our results to baumol s disease and assess the implications of this phenomenon for the compensation of environmental losses

bias in discrete response contingent valuation abstract the empirical literature on discrete response contingent valuation has found that seemingly innocuous changes in the statistical models estimated result in significantly different point estimates of willingness to pay this paper hypothesizes and tests several potential explanations for these results first it investigates and compares the biases inherent in single bounded and double bounded maximum likelihood estimation procedures and examines how they react to various bid designs and sample sizes then it examines the presence and identification of outliers in binary choice data and how these outliers influence estimation finally it presents an alternative approach to addressing the issue of outliers which explicitly acknowledges the possibility of upwardly biased response probabilities

some notes on trichotomous choice discrete valuation for some respondents the bid offered by the dichotomous choice format used in the discrete choice technique can in fact be the true optimum in this case the correct answer is neither yes or no but indifferent we shall show results from a trichotomous choice format and analyse whether it produces welfare measures with narrower confidence intervals than the dichotomous technique another well known problem in contingent valuation cv studies is that the volume of the good to be purchased from hypothetical markets is not in many cases defined in precise terms we show how the trichotomous choice technique can be used to test for possible vagueness in the volume of the project to be valued

disagreements among shareholders over a firm s disclosure policy this paper examines the issue of voluntary disclosure of information by firms with heterogeneous shareholders it shows that in a rational expectations setting better iniformed shareholders prefer less disclosure than less well informed shareholders this is due to differences in the adverse risk sharing effect and the beneficial cost saving effect of disclosure among shareholders with differenit risk tolerances aild information acquisition cost functions the presence of individual liquidity shocks is shown to reduce shareholder disagreements regarding a firm s disclosure policy many firms voluntarily disclose information beyond l evels mandated by financial and accounting regulations still other firms seem to disclose as little information as they can the paper seeks to explain this difference prior studies dealing with disclosure typically are concerned with whether firms would disclose too little or too much information in the absence of mandatory rules 1 results differ across models depending on whether positive or negative externalities are considered for example in a model where disclosure only adversely affects shareholders risk sharing opportunities the optimal level of disclosure is zero and mandatory disclosure rules make all shareholders worse off 2 in contrast mandatory disclosure rules are viewed in this paper as a result of conflicts among firms shareholders with different risk attitudes and different access to inside information in general there is no optimal disclosure policy that is best for all shareholders 3 this paper is based on the model of diamond 1985 diamond considers two opposing effects a positive externality and a negative externality of disclosure to explain the existence of voluntary disclosure when acquiring private information is costly first disclosure adversely affects risk sharing

public and private information about short and long lived assets using an overlapping generations model this paper considers the impact of an improvement in the technology that investors use to obtain signals about future payouts of a risk asset it is shown that the effects of such a change on the predictability of the gross return on the asset and on the welfare of the agents depend on whether the asset will make multiple future payouts is long lived or a single future payout is short lived and whether the signals about the payoffs are public or private copyright 1990 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

production flexibility stochastic separation hedging and futures prices we study a dynamic model where uncertainty about interim output adjustments causes producers to face price cost and output uncertainty stochastically separable production decisions are independent of the producer s risk preferences and expectations and are based on the prevailing futures price as a certain output price conditions under which futures contracts achieve stochastic separation are established optimal hedging and maturity structure of futures contracts equilibrium futures prices and the effects of futures trading on output are studied the systematic risk premium depends on the product of the futures beta and the covariance of the market return with production revenues article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

estimating stated preferences with rated pair data environmental health and employment effects of energy programs abstract respondents stated preferences for attributes related to various electricity generation scenarios are analyzed using a series of pairwise ratings multiple observations for each respondent facilitate estimating individual scale parameters scale estimates can identify uninformative rating patterns and make it possible to delete such observations or adjust wtp calculations cross section time series analysis of the data indicates that nonprice attributes increase in salience during the course of the experiment thus later responses may be better indicators of preferences than earlier responses comparisons of polychotomous with dichotomous models indicate that most respondents relative preference ratings are not simply dichotomous but discriminate systematically along the rating scale