electric power sector reform liberalization models and electric power prices in developing countries an empirical analysis using international panel data this study aims to clarify whether the effects of electric power sector reforms should be different either across regions or between developing and developed countries an empirical model was analyzed to observe the impact of electric power prices on the selection of a liberalization model in the power sector this was achieved by the use of an ordered response fixed effect and a random effect model an instrument variable technique was also used to estimate the impact of the liberalization model on the electric power price this technique addressed the problems of simultaneity bias between the electric power price and the liberalization models selected these econometric models were designed using panel data from 78 countries in four regions developed countries asian developing countries the former soviet union and eastern europe and latin america for the period from 1985 to 2003 the research findings suggest that higher electricity prices are one of the driving forces for governments to adopt liberalization models however the development of liberalization models in the power sector does not necessarily reduce electricity prices in fact contrary to expectations there was a tendency for the price to rise in every market modeled

a review of wta wtp studies abstract willingness to accept wta is usually substantially higher than willingness to pay wtp these constructs have been studied for roughly 30 years and with a wide variety of goods this paper reviews those studies we find that the less the good is like an ordinary market good the higher is the ratio the ratio is highest for non market goods next highest for ordinary private goods and lowest for experiments involving forms of money a generalization of this pattern holds even when we account for differences in survey design ordinary goods have lower ratios than non ordinary ones we also find that ratios in real experiments are not significantly different from hypothetical experiments and that incentive compatible elicitation yields higher ratios

a dynamic explanation of the willingness to pay and willingness to accept disparity a fundamental tenet in neoclassical theory is the basic independence assumption an individual s preferences are assumed to be measured over levels not changes although most theoretical and applied economic models invoke this assumption a wealth of data from laboratory experiments refutes this premise as systemic empirical disparities have been observed between willingness to pay wtp and willingness to accept wta for the same good e g kahneman knetsch and thaler 1990 with wta often observed to be many times larger than wta in an influential line of work hanemann 1991 argues that the large wta wtp disparities that have been observed in the literature can be reconciled with static neoclassical theory via income and substitution effects i but the empirical evidence to date has not conformed well to hanemann s 1991 or any other neoclassical based model 2 if the observed value disparity is inconsistent with neoclassical explanations and is found to be a fundamental component of individual s preferences as per reference dependent theory kahneman and tversky 1979 tversky and kahneman 1991 then a reevaluation of a good deal of economic analysis is necessary in this article we provide a different explanation for the wta wtp disparity a dynamic theory based on the presence of commitment costs and possibly asymmetric beliefs about market opportunities when the value of a good is uncertain wtp and wta will logically reflect compensation for the possibility of learning that the good has a different value than believed at the time of purchase or sale and the cost associated with reversing the purchase or sale decision in its simplest form our model predicts that with objective symmetric beliefs about market opportunities and with perfect substitutability and no income effects there should be no value disparity intuitively the objective cost of delaying the purchase or alternatively reversing the purchase for prospective buyers is isomorphic to the objective cost of reversing or delaying the sale for prospective sellers this symmetry necessarily leads to wta wtp consistent with the neoclassical paradigm importantly however it is an agent s perception of the delay and reversal costs that motivates behavior if agents behave in a manner consistent with the developing literature on cognitive dissonance and or limited memory it is quite plausible for individuals to display an asymmetric perception of the relative costs of selling later depending upon whether they are placed in the role of a buyer or seller 3 this type of asymmetry alone can yield the systematic value divergences observed in the literature indeed we show that even with only slight asymmetries in beliefs of perceived costs our theory can generate considerable value divergences because the actual divergence will depend upon the interaction of this asymmetry with the degree of value uncertainty time preference and lost value of consumption we explore the predictive power of our theory by examining wta and wtp statements of value from consumers in a competitive marketplace the sportscard market although we do not consider the sportscard marketplace particularly worthy of study in its own right it is useful for our purposes for several reasons first it is a natural setting for an examination of preference structures because it provides a rich pool of subjects making decisions in a familiar environment with uncertainty and future learning about the values of traded goods second we can identify factors that arise endogenously such as market experience and impose the remaining controls necessary to implement a clean experiment to explore whether such factors attenuate the value disparity through the channels predicted by our theory our data are striking in that agents display an asymmetric perception of the relative costs of selling later depending upon whether they are placed in the role of a buyer or seller

comments on plott and on kahneman knetsch and thaler both of these papers raise a number of interesting questions as to the factors that are important in determining market outcomes the kahneman knetsch and thaler in this issue paper explores whether the introduction of fairness can help explain behavior by firms that could not be easily explained by standard economic analyses charles plott s in this issue summary of experimental economic evidence suggests that market models based on rational choice principles do rather well for a certain class of problems but that there are a number of areas where the jury is still out let me first turn to the kahneman et al paper in my opinion the importance of this paper is that it lays out a set of testable propositions that are based on the deviations between a new transaction from a reference transaction on the basis of these propositions the authors offer testable hypotheses such as the following

modeling correlated market and credit risk in fixed income portfolios abstract current risk assessment methodologies separate the analysis of market and credit risk and thus misestimate security and portfolio risk levels we propose a new approach that relates financial market volatility to firm specific credit risk and integrates interest rate interest rate spread and foreign exchange rate risk into one overall fixed income portfolio risk assessment accounting for the correlation between these significant risk factors as well as portfolio diversification results in improved risk measurement and management the methodology is shown to produce reasonable credit transition probabilities prices for bonds with credit risk and portfolio value at risk measures

the disparity between willingness to accept and willingness to pay measures of value psychologists have long argued that people are much more averse to a loss than attracted to an equivalent gain this behavior termed loss aversion has been formalized by kahneman and tversky 1979 in their reformulation of expected utility theory prospect theory in prospect theory the utility function is replaced by a value function that evaluates changes in income from the current level increases in income are weighted by a relatively small marginal utility decreases in income are weighted by a much larger marginal utility in effect the value function implies that a kink in the relationship between utility and income occurs at the initial income or reference point and that the slope of the utility function for losses in income is steeper than it is for gains in a recent paper knetsch and sinden 1984 report a series of experiments that demonstrate the existence of a large disparity between willingness to accept wta and willingness to pay wtp measures of value they argue that the psychological theory of loss aversion explains this difference economic theory would suggest that individuals who exhibit a large disparity between wta and wtp are perhaps underperceiving the value of gains or overperceiving the value of losses are behaving in an irrational manner and will consequently achieve a lower level of well being than if they behaved in a true utility maximizing manner this would in contrast to loss aversion usually imply near equal values for wta and wtp see willig 1976 further documentation of a larger than expected disparity between wta and wtp has been obtained in surveys asking for the value of a variety of public goods for example cummings brookshire and schulze 1986 document six

the term structure of credit spreads with jump risk abstract default risk analysis is important for valuing corporate bonds swaps and credit derivatives and plays a critical role in managing the credit risk of bank loan portfolios this paper offers a theory to explain the observed empirical regularities on default probabilities recovery rates and credit spreads it incorporates jump risk into the default process with the jump risk a firm can default instantaneously because of a sudden drop in its value as a result a credit model with the jump risk is able to match the size of credit spreads on corporate bonds and can generate various shapes of yield spread curves and marginal default rate curves including upward sloping downward sloping flat and hump shaped even if the firm is currently in a good financial standing the model also links recovery rates to the firm value at default so that the variation in recovery rates is endogenously generated and the correlation between recovery rates and credit ratings before default reported in altman j finance 44 1989 909 can be justified

a neoclassical interpretation of momentum abstract the neoclassical theory of investment implies that expected stock returns are tied with the expected marginal benefit of investment divided by the marginal cost of investment winners have higher expected growth and expected marginal productivity two major components of the marginal benefit of investment and earn higher expected stock returns than losers the investment model succeeds in capturing average momentum profits reversal of momentum in long horizons long run risks in momentum and the interaction of momentum with several firm characteristics however the model fails to reproduce the procyclicality of momentum as well as its negative interaction with book to market equity

up close and personal investor sophistication and the disposition effect this paper analyzes the trading records of a major discount brokerage house to investigate the disposition effect the tendency to sell stocks that have appreciated in price winners sooner than stocks that trade below the purchase price losers in contrast to previous research that has demonstrated the disposition effect by aggregating across investors our main objective is to identify differences in the disposition bias across individuals and explain this in terms of underlying investor characteristics building on the findings in experimental economics and social psychology we hypothesize that differences in investor literacy about financial markets and trading frequency are responsible in part for the variation in individual disposition effect using demographic and socioeconomic variables as proxies for investor literacy we find empirical evidence that wealthier individuals and individuals employed in professional occupations exhibit a lower disposition effect consistent with experimental economics trading frequency also tends to reduce the disposition effect we provide guidelines for investment advisors regulators and investment communities to utilize our findings and help investors make better decisions

a sealed bid auction mechanism for siting noxious facilities this paper proposes a sealed bid mechanism for facilitating the siting process of noxious facilities such as prisons trash disposal plants and incinerators for hazardous waste these facilities have created such opposition by communities that the acronyms nimby not in my backyard or lulu local undesirable land use are now in common usage to describe the public s reaction to them the noxious facility siting problem arises because there are economies of scale associated with having only one plant to serve the needs of a wide region the community that hosts the plant absorbs all of the environmental costs while the rest of the region enjoys the benefits of the facility one reason that these facilities have been so strongly opposed by communities is that they generate relatively little new employment and provide limited additional taxes in relation to their perceived negative impact d morell and c magorian 1982 some compensation arrangement is thus needed to share the gains from the winners to the potential loser this paper discusses a sealed bid auction mechanism for selecting a location for the facility so that all communities feel they are better off than under the status quo

who s afraid of atmospheric stabilisation making the link between energy resources and climate change abstract the distribution of fossil fuel reserves and resources between different regions and deposits has strong implications for climate change economics and policy the task of stabilising the atmosphere is intimately linked to the question of long term energy supplies as conventional petroleum reserves deplete notwithstanding debates about the scope for reserve extension through continued exploration and development it suggests a supply side component to complement the consumption orientation of existing climate policies the task is to ensure that investment and innovation moves towards the low carbon frontier instead of the high carbon frontier this also implies that the opec countries have little to fear about the long run impact of climate change policy the priority is to deter development of more carbon intensive unconventional petroleum deposits and technologies and to ensure that the existing trends to diversify power generation sources continue and extend more widely over time supply side constraints will not solve the climate problem in themselves but they make the task a lot easier if the opportunities are taken

oil development operating cost estimates 1955 1985 abstract few if any published oil production cost estimates can be verified as to method and basic data using us drilling costs and some assumptions explained in the text this paper estimates development operating costs in 41 oil producing nations from 1955 to 1985 from publicly available data on drilling estimation methods are described in detail so that anyone with access to better information on any item can substitute it to arrive at a better estimate

modelling of insurers rating determinants an application of machine learning techniques and statistical models abstract in recent years financial regulations such as basel ii and solvency ii have highlighted the utility of credit risk assessments through internal rating systems particularly for estimating the probability of default pd of credit exposures financial entities must provide clear definitions of their internal ratings thus it is possible to associate internal grades to some external rating scale and then to attribute the external pd to the internal grades however this mapping must be based on an extensive comparison of both internal and external rating criteria a substantial body of research has been undertaken of rating determinants for banks and large industrial corporations however the academic literature on insurers rating determinants is very limited and fitness measures have not traditionally been provided this paper proposes a three step model to analyse rating determinants and it is applied to a sample of european insurance firms firstly a feature selection process is performed that mixes statistical bayesian and machine learning approaches from selected features several multivariate models are run both in the statistical field mda logit models and the decision trees research area c4 5 cart their accuracies are compared through bootstrapping strategies and a final model is proposed results show that the feature selection process selects a small group of relevant attributes regarding multivariate models the cart gini oblique decision tree appears to be a good strategy providing a quite satisfactory equilibrium between precision and comprehensibility

a learning curve of the market chasing alpha of socially responsible firms abstract this paper explores stock market reactions to corporate social performance we construct a value weighted portfolio based on the list of 100 best csr companies in the world published on the forbes website by reputation institute this portfolio yields statistically significant annual abnormal returns of 1 81 and 1 26 by controlling for carhart four factors and fama french five factors respectively 2 41 and 1 84 respectively for an equal weighted portfolio moreover such abnormal returns decrease as time passes especially after the inaugural publication of the csr lists in 2013 furthermore we find that companies with better social performance are more likely to have positive earnings surprises and that their returns are more sensitive to earnings surprises the results have three implications firstly csr reputation contributes positively to a firm s short term superior equity performance secondly the csr lists facilitate market correction of mispricing intangibles such as csr reputation abnormal returns decrease as the market gradually learns about the value of firms social performance lastly the paper contributes to the socially responsible investing sri screens and provides guidance for investors who would like to do well financially by doing good socially

gains from cartelisation in the oil market in this paper we ask whether opec still gains from cartelisation in the oil market despite low producer prices and a modest market share we apply two intertemporal equilibrium models of the global oil market one consisting of a cartel and a fringe and one describing a hypothetical competitive market comparing the outcome of these models we conclude that there are positive cartelisation gains of about 18 percent in the oil market in comparison with what pindyck 1978 found for the 1970s this may be considered as quite modest moreover we study whether the cartelisation gains to opec are altered by different moves by non opec producers or consumer countries generally we find that the relative cartelisation gains are unchanged one exception is exploration activities where we find that a major increase in non opec reserves could remove the cartelisation gains to opec completely in this case the opec countries could find themselves better off without the cartel

liquidity credit quality and the relation between volatility and trading activity evidence from the corporate bond market this paper investigates the roles of illiquidity and credit risk in determining the relations between price volatility of a bond and its trading frequency and trade size based on a large transaction dataset from october 2004 to june 2012 we find a positive relation between volatility and trading frequency and a negative relation between volatility and trade size consistent with the prediction of the search based theory the relations are much stronger for illiquid and risky bonds furthermore both liquidity and credit risk become more important in times of stress and their effects are reinforcing results strongly suggest that search frictions and credit risk are important factors driving the relation between volatility and trading activity in the corporate bond market

interest rates and credit risk this paper explores the effects of shifts in interest rates on corporate leverage and default we develop a dynamic model in which the relationship between firms and their outside financiers is affected by a moral hazard problem and entrepreneurs initial wealth is scarce the link between leverage and default risk comes from the lower incentives of overindebted entrepreneurs to guarantee firm survival the need to finance new investment with outside funding pushes firms leverage ratio above some state contingent target towards which they gradually adjust through earnings retention the dynamic response of leverage and default to interest rate rises and cuts is both asymmetric and heterogeneously distributed across firms both rises and cuts increase the aggregate default rate in the short run however a higher interest rate reduces firms target leverage and hence produces lower default rates in the longer run this helps rationalize some evidence regarding the risk taking channel of monetary policy

the s shaped value function as a constrained optimum almost since the expected utility hypothesis euh was first introduced evidence has accumulated that decision makers systematically violate it in various ways one early response to the evidence was to develop ad hoc alternatives the best known of which is prospect theory daniel kahneman and amos tversky 1979 1 more recent responses have relaxed the independence axiom or other axioms underlying the euh see mark machina 1987 for a very readable survey of the evidence and responses despite the high intellectual caliber of much of this work there is an important sense in which it has been retrograde theory is adjusted to the evidence by weakening not strengthening its predictive power in other areas such as the theory of the firm or the theory of money economists have followed a different research strategy more subtle constraints such as transactions costs or informational imperfections are sought to explain data that seem anomalous according to received theory when successful such a strategy more clearly delineates the realm in which the older theory is applicable and makes new testable predictions outside that realm thus theory is progressively strengthened to my knowledge only jonathan leland 1986 1988 has adopted such a progressive strategy in a theoretical investigation of euh anomalies the key assumptions of his approximate expected utility theory aeu are 1 inexperience and or cognitive limitations make the true utility function inaccessible so some approximation must be used but 2 decision makers efficiently allocate finite resources so as to minimize the resulting errors he formalizes these assumptions which he applies to probability assessments as well as to utilities in terms of a constraint on the number n of steps allowed in a step function approximation with the optimal approximation defined as that minimizing expected squared error his aeu theory is able to explain many of the major euh anomalies and reduces to ordinary euh in areas in which relevant experience accumulates for example in competitive markets as noted by peter knez vernon l smith and arlington w williams 1985 and don l coursey john l hovis and william d schultze 1987 the prevalence and magnitude of anomalies seems to decline in such settings the purpose of this note is to present a variant on leland s aeu i propose an approximate utility function or value function in which utility increments are weighted by a sensitivity function the resource constraint is that overall sensitivity is limited but prior to observable decisions it can be allocated freely along the continuum of potential wealth increments my approach has three advantages it predicts an s shaped value function when agents maximize expected sensitivity at actual choice opportunities given very plausible assumptions regarding the distribution of such opportunities recall that the assumption that decision makers maximize an s shaped value function such as that depicted in figure 1 is the centerpiece of prospect theory economics department university of california santa cruz ca 95064 i appreciate the comments of jonathan leland amos tversky and two anonymous referees on earlier drafts of this paper the usual caveat definitely applies ithe authors of prospect theory call their model descriptive as opposed to normative but do not consider it ad hoc because of its connections with the psychophysical literature however no substantial connections of prospect theory with generally accepted economic principles for example optimality have previously been demonstrated it is in this narrow economist s sense that i use the term ad hoc the more recent work of ariel rubinstein 1988 and tversky and kahneman 1986 underscores the difficulty of reconciling such a descriptive approach to the expected utility hypothesis

substitutability experience and the value disparity evidence from the marketplace abstract recent empirical evidence suggests that important disparities exist between willingness to pay and compensation demanded for the same good these results which clearly contradict closely held economic doctrines have led some influential commentators to call for an entirely new economic paradigm to displace conventional neoclassical theory this study examines the generality of these experimental findings by going to a well functioning marketplace and examining more than 350 individual decisions across two incentive compatible elicitation mechanisms the data suggest that behavior of individuals with intense experience approaches neoclassical predictions any observed wta wtp disparity amongst this group is negligible

opec s response to international climate agreements this paper studies a game between a group of countries that have agreed to participate in an international climate agreement the signatories and opec the purpose of the signatories is to design carbon taxes that maximize their total net income given a goal on global carbon emissions as a response to the climate agreement opec imposes an oil tax on its member states that maximizes opec s profits within a numerical model we find the subgame perfect equilibrium of a game in which each player chooses when to fix his decision variables it is shown that in equilibrium the group of signatories chooses to be the leader and opec chooses to be the follower it is demonstrated however that for both agents the order of move is of minor numerical importance hence the players have limited incentives for strategic behaviour

buyer exuberance and price premium it has been demonstrated that the real estate market disciplines irrational price premiums however the persistence of price premiums begs the question of what causes price premiums in the first place this paper seeks to examine two explanations for price premiums the conventional information asymmetry explanation and the buyer exuberance explanation as motivated by behavioural studies the results show that information asymmetry explains price premiums and this finding is robust across two sub hypotheses tested namely information differences arising from market familiarity and product characteristics in addition we find that price premiums are also caused by buyer exuberance specifically exuberance arising from representativeness purchasing power and anchoring effects

moody s and s p ratings are they equivalent conservative ratings and split rated bond yields we examine the relative impact of moody s and s p ratings on bond yields and find that at issuance yields on split rated bonds with superior moody s ratings are about 8 basis points lower than yields on split rated bonds with superior s p ratings this suggests that investors differentiate between the two ratings and assign more weight to the ratings from moody s the more conservative rating agency moody s becomes more conservative after 1998 and the impact of a superior moody s rating becomes stronger furthermore the differential impact of the two ratings is more pronounced for the more opaque rule 144a issues

coal policies and trade barriers abstract the purpose of this paper is to treat in some depth recent work performed by the iea secretariat in analysing barriers to coal trade in member countries the concept of the producer subsidy equivalent pse as a measure of financial transfers to the coal industry is described along with its advantages and limitations as illustration summary results for the years 1982 1988 are given the paper concludes with a discussion of the arguments for and against maintaining support for domestic coal production

risk perception and the financial system i examine how a country s financial system influences assessments of firm level risk consistent with theories of financial intermediation i find that firms located in a country with a bank oriented financial system are perceived as posing a lower credit risk and correspondingly are assigned higher credit ratings than otherwise similar firms in a market oriented setting even after considering elements of a country s legal infrastructure that relate to creditor protection and insolvency proceedings the financial system remains an important determinant of credit rating assignment the results are robust to the inclusion of several firm level controls including financial performance industry ownership concentration political connections and the ease with which the firm s assets can be monitored

generalising a pricing effect in an extensive field experiment with fast moving branded consumer goods price elasticities are found to be much the same for different products or brands for prices going up or coming down at different speeds and irrespective of the brand s previous pricing history these results differ radically from the view that individual products and brands have their own distinct elasticities copyright 1990 by blackwell publishing ltd

shocks plausible shocks in world energy in the 1990s this paper contrasts the calm developments in world energy markets in the 1990s with three unlikely yet plausible shocks and their implications for energy consumers and producers a series of nuclear disasters followed by worldwide closure of nuclear power generation a collapse in the aging world tanker capacity and a set of ominous climatic events resulting in an international decision to cut co2 emissions are considered in turn

the impact of diverse measures of default risk on uk stock returns a number of recent papers examine the relationship between default risk and equity returns and the results are mixed these studies employ different measures of default risk and we find that correlations between eight diverse measures of default risk tend to be less than 50 nonetheless we find that the relationship between stock returns and diverse measures of default risk tends to be consistent default risk is a significant determinant of stock returns and this relationship is hump backed as predicted by garlappi and yan 2011

internal ratings systems implied credit risk and the consistency of banks risk classification policies abstract this paper aims at improving our understanding of internal risk rating systems irs at large banks of the way in which they are implemented and at verifying if irs produce consistent estimates of banks loan portfolio credit risk an important property of our work is that the size of our data set allows us to derive measures of credit risk without making any assumptions about correlations between loans by applying carey s carey mark 1998 credit risk in private debt portfolios journal of finance liii 4 1363 1387 non parametric monte carlo re sampling method we find substantial differences between the implied loss distributions of two banks with equal regulatory risk profiles both expected losses and the credit loss rates at a wide range of loss distribution percentiles vary considerably such variation will translate into different levels of required economic capital our results also confirm the quantitative importance of size for portfolio credit risk for common parameter values we find that tail risk can be reduced by up to 40 by doubling portfolio size our analysis makes clear that not only the formal design of a rating system but also the way in which it is implemented e g a rating grade composition the degree of homogeneity within rating classes can be quantitatively important for the shape of credit loss distributions and thus for banks required capital structure the evidence of differences between lenders also hints at the presence of differentiated market equilibria that are more complex than might otherwise be supposed different lending or risk management styles may emerge and banks strike their own balance between risk taking and the cost of monitoring that risk

monetary compensations in climate policy through the lens of a general equilibrium assessment the case of oil exporting countries this paper investigates the compensations that major oil producers have claimed for since the kyoto protocol in order to alleviate the adverse impacts of climate policy on their economies the amount of these adverse impacts is assessed through a general equilibrium model which endogenizes both the reduction of oil exportation revenues under international climate policy and the macroeconomic effect of carbon pricing on middle east s economy we show that compensating the drop of exportation revenues does not offset gdp and welfare losses because of the time profile of the general equilibrium effects when considering instead compensation based on gdp losses the effectiveness of monetary transfers proves to be drastically limited by general equilibrium effects in opened economies the main channels of this efficiency gap are investigated and its magnitude proves to be conditional upon strategic and policy choices of the middle east this leads us to suggest that other means than direct monetary compensating transfers should be discussed to engage the middle east in climate policies

the declining credit quality of u s corporate debt myth or reality in recent years the number of downgrades in corporate bond ratings has exceeded the number of upgrades leading some to conclude that the credit quality of u s corporate debt has declined however an alternative explanation of this apparent decline in credit quality is that the rating agencies are now using more stringent standards in assigning ratings an ordered probit analysis of a panel of firms from 1978 through 1995 suggests that rating standards have indeed become more stringent implying that at least part of the downward trend in ratings is the result of changing standards bond ratings play a key role in corporate financing and investment decisions a corporation that can issue higher rated bonds usually receives better terms than one that can issue only lower rated bonds by law or policy some investors can purchase only bonds with an investment grade rating a restriction which in some asset pricing models would affect the relative prices of financial assets numerous articles in the popular press have presumed that the credit quality of the debt of u s corporations has been declining over the last couple of decades the comprehensive study by lucas and lonski 1992 of moody s rating changes of corporate debt is consistent with this presumption to cite their statistics in 1970 moody s downgraded 21 issues and upgraded 23 issues but over the following years the number of bonds downgraded began to exceed by substantial margins the number of bonds upgraded and by 1990 moody s downgraded 301 issues and upgraded only 61 their study includes both investment and noninvestment grade bonds but internal data from donaldson lufkin jenrette confirm that this trend also applies to investment grade bonds alone in a somewhat different context grundy 1997 documents similar trends in the ratings of preferred shares over the 1965 to 1990 period as the credit quality of a firm s corporate debt decreases that firm will face a greater probability of financial distress which at the extreme translates into bankruptcy there is some debate as to the effect of financial dis

bond illiquidity and excess volatility we find that the empirical volatilities of corporate bond and cds returns are higher than implied by equity return volatilities and the merton model this excess volatility may arise because structural models inadequately capture either fundamentals or illiquidity our evidence supports the latter explanation we find little relation between excess volatility and measures of firm fundamentals and the volatility of firm fundamentals but some relation with variables proxying for time varying illiquidity consistent with an illiquidity explanation firm level bond portfolio returns which average out bond specific effects significantly decrease excess volatility the author 2013 published by oxford university press on behalf of the society for financial studies all rights reserved for permissions please e mail journals permissions oup com oxford university press

using hicksian surplus measures to examine consistency of individual preferences evidence from a field experiment this paper pits neoclassical theory against prospect theory by investigating several clean tests of the competing hypotheses consistent with previous work the field experimental data suggest that prospect theory adequately organizes behavior among inexperienced consumers whereas consumers with intense market experience behave largely in accordance with neoclassical predictions the data indicate that the convergence in values occurs entirely because of lower hicksian equivalent surplus values

viewpoint on the generalizability of lab behaviour to the field abstract we can think of no question more fundamental to experimental economics than understanding whether and under what circumstances laboratory results generalize to naturally occurring environments in this paper we extend levitt and list 2006 to the class of games in which financial payoffs and doing the right thing are not necessarily in conflict we argue that behaviour is crucially linked to not only the preferences of people but also the properties of the situation by doing so we are able to provide a road map of the psychological and economic properties of people and situations that might interfere with generalizability of laboratory result from a broad class of games

structural shifts in credit rating standards i examine the time series variation in corporate credit rating standards from 1985 to 2007 a divergent pattern exists between investment grade and speculative grade rating standards from 1985 to 2002 as investment grade standards tighten and speculative grade loosen in 2002 a structural shift occurs toward more stringent ratings holding characteristics constant firms experience a drop of 1 5 notches in ratings due to tightened standards from 2002 to 2007 credit spread tests suggest that the variation in standards is not completely due to changes in the economic climate rating standards affect credit spreads loose ratings are associated with higher default rates

financial structure and aggregate economic activity an overview this paper surveys literature that explores the possible links between the financial system and aggregate economic behavior the survey is in two parts the first reviews the traditional work and the second discusses new research copyright 1988 by ohio state university press

credit ratings and stock liquidity we analyze contemporaneous and predictive relations between credit ratings and measures of equity market liquidity and find that common measures of adverse selection which reflect a portion of the uncertainty about future firm value are larger when credit ratings are poorer we also show that future rating changes can be predicted using current levels of adverse selection collectively our results validate widely used microstructure measures of adverse selection and offer new insights into the value of credit ratings and the specific nature of the information they contain copyright 2006 oxford university press

is there cyclical bias in bank holding company risk ratings abstract this paper examines whether bank holding company bhc risk ratings are asymmetrically assigned or biased over business cycles from 1986 to 2003 in a model of ratings determination which accounts for bank characteristics financial market conditions past supervisory information and aggregate macro economic factors we find that bank exam ratings exhibit inter temporal characteristics first exam ratings exhibit some evidence of examiner bias for several periods analyzed when the business cycle turns examiners sometime depart from standards that they set during the previous phases of the cycle however this bias is not widespread or systematic second exam ratings exhibit some inertia our results suggest that examiners rate on the side of not changing rather than upgrading or downgrading an institution s exam rating third we find robust evidence of a secular trend towards more stringent examination bhc ratings standards over time

the information content of municipal bond rating changes a note municipal bond rating changes have positive social value if they signal previously unavailable information on changes in municipal financial soundness weinstein 11 has found that rating changes for corporate bonds do not appear to contain relevant new information his finding is consistent with that of pinches and singleton 7 that stock price adjustments occurred several months prior to a corporate bond rating change rating agencies apparently respond to changes in corporate financial and operating conditions several months after the information is impounded in bond and stock prices 1 however as a result of institutional differences between corporate and municipal bond markets it is possible that rating changes for municipal bonds do convey new information this note examines the information content of municipal bond rating changes by evaluating municipal bond price adjustments during the period surrounding a rating change the joint hypothesis tested is that municipal bond rating changes convey information to investors which is relevant for assessing equilibrium values of the securities and that the municipal bond market is efficient so that valuation changes occur simultaneously with rating changes the following section examines the institutional setting of the municipal bond market in order to specify why information content of bond rating changes might be anticipated remaining sections of the paper describe sample selection derivation of test data findings and discussion

monetary shocks equity returns and volatility a firm level panel data analysis abstractthis article studies the impact of monetary policy shocks on equity returns and their volatility among nine industries and their affiliated firms in the united states we use an extension of the traditional capm as the analytical framework and approximate policy shocks with the unexpected component of the federal funds rate data on the characteristics of firms and industries are obtained from compustat and the center for research in security prices covering a sample period from 1987 to 2009 our results clearly show that responses to policy shocks vary by industry and across firms furthermore credit availability matters in certain industries and small financially constrained and bank dependent firms are found to be more vulnerable to unexpected federal funds rate shocks

investment under uncertainty testing the options model with professional traders abstract an important class of investment decisions is characterized by unrecoverable sunk costs resolution of uncertainty through time and the ability to invest in the future as an alternative to investing today the options model provides guidance in such settings including an investment decision rule called the bad news principle the downside investment state influences the investment decision whereas the upside investment state is ignored this study takes a new approach to examining predictions of the options model by using the tools of experimental economics our evidence drawn from student and professional trader subject pools is broadly consonant with the options model

scientific numerology preference anomalies and environmental policymaking recently an abundance of experimental evidence has been gathered that is consonant with the notion that individual preferences are inconsistent and unstable these empirical results potentially undermine the theoretical foundation of welfare economics as the degree of preference lability claimed suggests that perhaps no optimization principles underlie even the most straightforward of choices yet policymakers in the environmental arena continue to prescribe policies based on economics based methods that are constructed on the very principles that have been directly refuted are policymakers creatures of habit that move at glacial speed or is there something deeper behind their inertness in this study i explore this issue within the u s context and argue that there is some rationality behind current public policy decisionmaking i then explore whether the empirical evidence supports the view that policymakers should take preference anomalies seriously as a case study i focus on some of my recent findings on preference inconsistencies in the marketplace

cross listed bonds information asymmetry and conservatism in credit ratings we propose information asymmetry as an additional explanation for rating conservatism because information asymmetry is likely higher for cross listed bonds than for u s bonds we expect and find that cross listed bonds are rated more conservatively than u s domestic bonds at issuance further cross listed bonds receive less frequent upgrades and take longer to be upgraded after issuance because lower ratings might also reflect higher default risk based on agencies private information we conduct additional tests to discriminate between the rating conservatism and private information explanations the results are consistent with ratings conservatism and inconsistent with the private information explanation

are credit ratings procyclical abstract this paper studies the influence of the state of the business cycle on credit ratings in particular we assess whether rating agencies are excessively procyclical in their assignment of ratings our analysis is based on a model of ratings determination that takes into account factors that measure the business and financial risks of firms in addition to indicators of macroeconomic conditions utilizing annual data on all us firms rated by standard poor s we find that ratings do not generally exhibit excess sensitivity to the business cycle in addition we document that previously reported findings of a secular tightening of ratings standards are not robust to a more complete accounting of systematic changes to measures of risk

debt maturity and asymmetric information evidence from default risk changes asymmetric information models suggest that a borrower s choice of debt maturity depends on its private information about its default probabilities that is borrowers with favorable information prefer short term debt while those with unfavorable information prefer long term debt we test this implication by tracing the evolution of debt issuers default risk following debt issuances we find that short term debt issuance leads to a decline inborrowers asset volatility and an increase in their distance to default the opposite is true for long term debt issues the results suggest that borrowers private information about their default risk is an important determinant of their debt maturity choices

optimal retirement with unemployment risks abstract this paper investigates the optimal retirement of an individual in the presence of involuntary unemployment risks and borrowing constraints in a complete market with frictions we use an intensity model and loading factors to illustrate the involuntary unemployment risks and frictions in unemployment insurance markets using reasonably calibrated parameters we observe that high involuntary unemployment intensity and loading factors could be important explanations for the empirical findings emphasized in recent studies we also find that an individual with high leisure demand after retirement reduces consumption during retirement and increases stockholdings as retirement time approaches

political economy of the kyoto protocol the kyoto protocol negotiated in december 1997 is the first international treaty to limit emissions of greenhouse gases but kyoto does not mark the conclusion to international cooperation on climate change it is really just a beginning this paper shows that in the aggregate the benefits of undertaking the kyoto reductions should exceed the corresponding costs provided these are achieved cost effectively but although kyoto seeks to promote cost effectiveness it may yet prove very costly moreover the agreement may not even achieve the reductions that it promises either because emissions will relocate to the countries that are not required to stay within kyoto prescribed ceilings or because paper trades will be promoted by the protocol s mechanisms more fundamentally kyoto does not deter non compliance and it only weakly deters non participation these flaws need to be mended but the nature of the problem makes that an especially difficult task copyright 1998 by oxford university press

have rating agencies become more conservative implications for capital structure and debt pricing rating agencies have become more conservative in assigning corporate credit ratings over the period 1985 to 2009 holding firm characteristics constant average ratings have dropped by three notches this change does not appear to be fully warranted because defaults have declined over this period firms affected more by conservatism issue less debt have lower leverage hold more cash are less likely to obtain a debt rating and experience lower growth their debt spreads are lower than those of unaffected firms with the same rating which implies that the market partly undoes the impact of conservatism on debt prices this evidence suggests that firms and capital markets do not perceive the increase in conservatism to be fully warranted

limits to oil pricing scenario planning as a device to understand oil price developments abstract the bad record of oil price forecasting indicates that conventional oil market models should be critically reassesed scenario planning may be one alternative approach this approach does not contradict other theories of the market but it claims that no single discipline is able to tell the whole truth about the market the sp approach stresses and clarifies the role of uncertainty it argues that without a cross disciplinary approach with an adequate choice of parameters at the right level of in depth discussion the analysis may either lose essential imput or drown in detail as an example of the methodology an analysis of the oil market in the 1990s is presented this shows low upper and lower limits for the price can be constructed and which actual price development can be expected in a combination of economic and political reasoning

does rating analyst subjectivity affect corporate debt pricing we find evidence of systematic optimism and pessimism among credit analysts comparing contemporaneous ratings of the same firm across rating agencies these differences in perspectives carry through to debt prices and negatively predict future changes in credit spreads consistent with mispricing moreover the pricing effects are the largest among firms that are the most opaque likely exacerbating financing constraints we find that masters of business administration mbas provide higher quality ratings however optimism increases and accuracy decreases with tenure covering the firm our analysis demonstrates the role analysts play in shaping investor expectations and its effect on corporate debt markets

will opec lose from the kyoto protocol a range of energy economy models forecast losses to members of the organisation of petroleum exporting countries opec should the kyoto protocol come into force these forecasts are a powerful influence in the united nations framework convention on climate change negotiations they are used by opec to advance the agenda on the impacts of response measures covertly arguing for compensation for lost oil revenues arising from implementation of the protocol this paper discusses this issue and explores the key assumptions of these models and their uncertainties assumptions about carbon leakage future availability of oil reserves substitution innovation and capital turnover are considered the paper suggests that losses will not affect opec countries equally and that these losses are not likely to be as substantial as the models forecast a range of policy measures are proposed to lessen any impact the protocol may have on opec

dynamics of energy technologies and global change technological choices largely determine the long term characteristics of industrial society including impacts on the natural environment however the treatment of technology in existing models that are used to project economic and environmental futures remains highly stylized based on work over two decades at iiasa we present a useful typology for technology analysis and discuss methods that can be used to analyze the impact of technological changes on the global environment especially global warming our focus is energy technologies the main source of many atmospheric environmental problems we show that much improved treatment of technology is possible with a combination of historical analysis and new modeling techniques in the historical record we identify characteristic l such network e ects yield high barriers to entry even for superior competitors these simple observations allow three improvements to modeling of technological change and its consequences for global environmental change one is that the replacement of long lived infrastructures over time has also replaced the fuels that power the economy to yield progressively more energy per unit of carbon pollution from coal to oil to gas such replacement has d they also include endogenous generation of s we show that doing so can yield projections with lessened environmental impacts without necessarily incurring negative e ect on the economy arriving on that path by the year 2100 depends on intervening actions such as incentives to promote greater diversity in technology and lower barriers to entry for new infrastructures that could accelerate historical trends of decarbonization 1999 elsevier science ltd all rights reserved