swap rates and credit quality this article presents a model for valuing claims subject to default by both contracting parties such as swaps and forwards with counterparties of different default risk the promised cash flows of a swap are discounted by a switching discount rate that at any given state and time is equal to the discount rate of the counterparty for whom the swap is currently out of the money that is a liability the impact of credit risk asymmetry and of netting is presented through both theory and numerical examples which include interest rate and currency swaps this article presents a model for valuing claims subject to default by both contracting parties such as swaps and forwards this extends the valuation model for defaultable claims proposed by duffie and singleton 1994 to cases in which the two counterparties have asymmetric default risk the extension permits a reexamination of the impact of credit risk on swap rates while the valuation model applies to all forms of contingent claims in which both contracting parties are at risk to default such as forward contracts we focus on swaps for purposes of illustration for example consider a 5 year interest rate swap between a given party paying a floating rate such as the london inter bank offered rate libor and another counterparty paying a fixed rate replacing the given fixed rate counterparty with a lower quality counterparty whose bond yields are 100 basis points higher increases the swap rate by roughly 1 basis point using our model and typical parameters for libor rate processes this credit impact on swap rates is approximately linear within the range of normally encountered credit quality for a 5 year currency swap given a foreign exchange rate with 15 percent volatility our model shows the impact of credit risk asymmetry on the market swap rate to be roughly 10 fold greater than that for interest rate swaps that is approximately 10 basis points in swap rate per 100 basis points in bond yield credit spread the main goal of this article is to provide a simple and theoretically consistent model allowing such computations

renegotiation collective action clauses and sovereign debt markets abstract collective action clauses cacs are provisions specifying that a supermajority of bondholders can change the terms of a bond we study how cacs determine governments fiscal incentives sovereign bond prices and default probabilities in environments with and without contingent debt and imf presence we claim that cacs are likely to be an irrelevant dimension of debt contracts in current sovereign debt markets because of the variety of instruments utilized by sovereigns and the implicit imf guarantee nonetheless under a new international bankruptcy regime like that recently proposed by the imf cacs can increase significantly the cost of borrowing for sovereigns contrary to what is suggested in previous empirical literature

collective action clauses how do they affect sovereign bond yields abstract we study the effects of the adoption of collective action clauses cacs on government bond yields by exploiting secondary market data on sovereign bonds quoted in international markets from march 2007 to april 2011 cacs are assessed security by security using a panel data approach we find a u shaped effect of cacs on yields according to the credit rating of the issuer while the impact is negligible for the highest ratings a significant yield discount emerges for mid range ratings which is smaller for bad ratings and possibly insignificant for the worst ratings this relationship appears fairly robust across a number of checks this evidence may reflect the fact that cacs are valuable because they help with orderly restructuring unless the perceived probability of default is too small nevertheless at low ratings this effect can be weakened by an increasing risk of moral hazard

a model of the term structure of interest rates in an open economy with regime shifts abstract this paper presents a term structure model driven by three factors the foreign real interest rate the domestic inflation rate and the real exchange rate the model is designed to capture effects originating from exchange rate fluctuations and actions by central banks special attention is paid to regime shifts such as changes in the target inflation rate and devaluations an interesting result is that imperfect credibility of a target zone for the exchange rate mainly affects short term interest rates whereas a loss in an inflation target s credibility is likely to increase long term interest rates jel e43 f3 1997 elsevier science ltd

doing good but not that well a dilemma for energy conserving homeowners abstract in this paper the issue of market capitalization of energy efficient buildings is addressed by considering single family housing in sweden and through analyzing as to what extent the market price for a house is influenced by its energy performance are swedish homeowners doing well by doing good we make use of information provided by the swedish energy performance certificates for single family homes matched with data on the corresponding transaction prices household characteristics and attributes of the neighborhood the resulting database covering about 77 000 individual observations is used to analyze the relationship between the price of a house and its energy performance by means of a hedonic model unlike most other studies the energy performance is decomposed into energy consumption and several other variables characterizing the energy system the main question addressed is if there is a price premium for energy efficient housing in sweden our results differ from earlier studies and indicate no price premium related to the energy consumption but substantial premiums for housing attributes that improve the energy efficiency a likely explanation is that prospective buyers of new homes base their expectations about future energy consumption on those attributes rather than on the energy consumption of the previous owner

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

term premiums in bond returns abstract this paper examines expected returns on u s treasury bills and on u s government bond portfolios expected bill returns are estimated from forward rates and from sample average returns both estimation methods indicate that expected returns on bills tend to peak at eight or nine months and never increase monotonically out to twelve months reliable inferences are limited to treasury bills and thus to maturities up to a year the variability of longer term bond returns preempts precise conclusions about their expected returns

estimating the implicit price of energy efficiency improvements in the residential housing market a hedonic approach abstract in this study a hedonic price model has been used to examine the impact which efficiency improvements have on housing values our study represents an improvement over a previous attempt to examine this issue in that the independent variable used in our analysis is designed to reflect variation in structural efficiency levels among sample homes rather than variation in occupant lifestyles and preferences in addition a flexible functional form is used to prevent bias due to misspecification of the hedonic price equation the study results reveal that efficiency improvements are capitalized into housing prices in des moines iowa at the average efficiency level of homes in the sample an efficiency improvement which results in a 1 decrease in the level of expenditures necessary to maintain the house at 65 f in the average heating season will increase the expected selling price of the house by 11 63 the premium obtained for an equivalent efficiency improvement will be greater than 11 63 in a relatively efficient home and less than 11 63 in a relatively inefficient home without further information concerning the price expectations and discount rates utilized by des moines home buyers and the average remaining life of fuels saving investments in the sample it cannot be determined whether the housing market is pricing fuel savings efficiently regardless of whether or not the implicit price of fuel savings is the outcome of an efficient market information on this implicit price facilitates the estimation of an average resale value of fuel saving investments in addition the results of this study refute the hypothesis that efficiency improving investments are not capitalized into housing prices

recent developments in quantitative models of sovereign default the current crisis and discussions in the euro area in particular show that sovereign debt crises defaults are no longer confined to developing economies following crises in many latin american countries the literature on quantitative dynamic macro models of sovereign default has been advancing rapidly current debate should take note of the findings of this literature an extensive overview of which has been provided in this paper this paper also discusses the inherent difficulties as well as possibilities of integrating this type of model into standard business cycle models rbc and dsge models this is likely to be particularly helpful when using models to analyse upcoming issues in the euro area such as a suitable sovereign insolvency law or the assumption of joint liability

who should buy long term bonds according to conventional wisdom long term bonds are appropriate for conservative long term investors this paper develops a model of optimal consumption and portfolio choice for infinite lived investors with recursive utility who face stochastic interest rates solves the model using an approximate analytical method and evaluates conventional wisdom as risk aversion increases the myopic component of risky asset demand disappears but the intertemporal hedging component does not conservative investors hold assets to hedge the risk that real interest rates will decline long term inflation indexed bonds are most suitable for this purpose but nominal bonds may also be used if inflation risk is low

co ordination failure moral hazard and sovereign bankruptcy procedures we study a model of sovereign debt crisis that combines problems of creditor co ordination and debtor moral hazard solving the sovereign debtor s incentives leads to excessive rollover failure by creditors when sovereign default occurs we discuss how the incidence of crises might be reduced by international sovereign bankruptcy procedures involving contractibility of sovereign debtor s payoffs suspension of convertibility in a discovery phase and penalties in case of malfeasance in relation to the current debate this is more akin to the imf s sovereign debt restructuring mechanism than the collective action clauses promoted by others

analytic valuation formulas for range notes and an affine term structure model with jump risks abstract we derive analytic valuation formulas for range accrual notes and spread range accrual notes under an affine term structure model with jump risks we show that the value of a range accrual note can be significantly affected by the choice of interest rate model and the arrival intensity of jump risks we also show that misuse of the correlation between reference rates of a spread range accrual note may lead traders and risk managers to mispricing of the note

determinants of residential space heating expenditures in germany abstract we first examine the determinants of household expenditures on space heating and hot water supply in germany a number of socio economic characteristics of households are included along with building characteristics our analysis covers information on more than 12 000 households in germany for the years 1998 and 2003 the analysis continues by investigating whether different kinds of households are affected differently by increases in energy prices households in owner occupied properties are less affected compared to those in rented accommodation this could be because owners are more likely to have installed energy efficient heating and hot water supply systems and landlords have less of an incentive to improve the conditions of their rented accommodations an energy policy targeting especially the latter group might benefit not only households in rented accommodation but might also increase energy efficiency and reduce greenhouse gas emissions as well

continuous time methods in finance a review and an assessment i survey and assess the development of continuous time methods in finance during the last 30 years the subperiod 1969 to 1980 saw a dizzying pace of development with seminal ideas in derivatives securities pricing term structure theory asset pricing and optimal consumption and portfolio choices during the period 1981 to 1999 the theory has been extended and modified to better explain empirical regularities in various subfields of finance this latter subperiod has seen significant progress in econometric theory computational and estimation methods to test and implement continuous time models capital market frictions and bargaining issues are being increasingly incorporated in continuous time theory the roots of modern continuous time methods in finance can be traced back to the seminal contributions of merton 1969 1971 1973b in the late 1960s and early 1970s merton 1969 pioneered the use of continuous time modeling in financial economics by formulating the intertemporal consumption and portfolio choice problem of an investor in a stochastic dynamic programming setting merton 1973b also showed how such a framework can be used to develop equilibrium asset pricing implications thereby significantly extending the asset pricing theory to richer dynamic settings and expanding the scope of applications of continuous time methods to study problems in financial economics 1 within a span of about 30 years from the publication of merton s inf luential papers continuous time methods have become an integral part of financial economics indeed in certain core areas in finance such as e g asset pricing derivatives valuation term structure theory and portfolio selection continuoustime methods have proved to be the most attractive way to conduct research and gain economic intuition the continuous time approach in these areas has produced models with a rich variety of testable implications the econometric theory for testing continuous time models has made rapid strides in the last decade and has thus kept pace with the impressive progress on the theoretical front one hopes that the actual empirical investigations and estimation using the new procedures will follow suit soon

sovereign debt restructuring the judge the vultures and creditor rights what role did the us courts play in the argentine debt swap of 2005 what implications does this have for the future of creditor rights in sovereign bond markets the judge in the argentine case has it appears deftly exploited creditor heterogeneity between holdouts seeking capital gains and institutional investors wanting a settlement to promote a swap with a supermajority of creditors our analysis of argentine debt litigation reveals a judge mediated sovereign debt restructuring which resolves key issues of transition and aggregation two of the tasks envisaged for the imf s stillborn sovereign debt restructuring mechanism for the future we discuss how judge mediated sovereign debt restructuring together with creditor committees could complement collective action clauses in sovereign bond contracts

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

does strengthening collective action clauses cacs help does improving creditor coordination by strengthening cacs lead to efficiency gains in the functioning of sovereign bond markets we address this question in a model featuring both debtor moral hazard and creditor coordination under incomplete information conditional on default we characterize the interim efficient cac threshold and show that strengthening cacs away from unanimity results in interim welfare gains however once the impact of strengthening cacs on debtor s incentives is taken into account we demonstrate the robust possibility of a conflict between ex ante and interim efficiency we calibrate our model to quantify such a welfare trade off and discuss the policy implications of our results

the empirical implications of the cox ingersoll ross theory of the term structure of interest rates the one factor version of the cox ingersoll and ross model of the term structure is estimated using monthly quotes on u s treasury issues trading from 1952 through 1983 using data from a single yield curve it is possible to estimate implied short and long term zero coupon rates and the implied variance of changes in short rates analysis of residuals points to a probable neglected tax effect the term structure of interest rates is important to economists because the relationship among the yields on default free securities that differ in their term to maturity reflects the information available to the market about the future course of events the expectations hypothesis the liquidity preference hypothesis hicks 10 and the market segmentation hypothesis culbertson 6 are theories of the term structure that predict little more than that the implied forward rate is either equal to or not equal to the expectation of future spot rates cox ingersoll and ross 5 cir model the term structure of interest rates in a competitive equilibrium context their model has elements in common with the earlier hypotheses of the term structure however the cir model has a rich class of empirical implications not only for the pricing of default free securities but also for the pricing of bond options callable bonds and other types of financial claims this paper examines the extent to which the model in its simplest one factor form is descriptive of the prices of u s treasury bills bonds and notes traded from 1952 to 1983 section i describes the model and the parsimonious representation of bond prices which it implies section ii describes the data and section iii outlines the preliminary results obtained by fitting the model to observed data the final section outlines directions for future research

gaussian estimation of single factor continuous time models of the term structure of interest rates this article presents the first application in finance of recently developed methods for the gaussian estimation of continuous time dynamic models a range of one factor continuous time models of the short term interest rate are estimated using a discrete time model and compared to a recent discrete approximation used by chan karolyi longstaff and sanders 1992a hereafter ckls whereas the volatility of short term rates is highly sensitive to the level of rates in the united states it is not in the united kingdom the econometric estimation of continuous time models of the short term interest rate has been a relatively recent development in empirical finance see for example brown and dybvig 1986 melino and turnbull 1986 barone cuoco and zautzik 1991 babbs 1992 abken 1993 chen and scott 1993 das 1993 gibbons and ramaswamy 1993 pearson and sun 1994 lund 1994 pfann schotman and tschernig 1995 ait sahalia 1995 and broze scaillet and zakoian 1995 1 in an important study chan karolyi longstaff and sanders 1992a hereafter ckls develop a general framework to estimate and compare a range of different single factor term structure models for the short term interest rate their major conclusion is that term structure models with volatilities more highly sensitive to the level of interest rates than more generally used models have a closer empirical fit to the data in addition the functional form of the drift with or without mean reversion is of secondary importance to the correct specification of the conditional heteroskedasticity in ckls the continuous time models of the term structure are estimated using a discrete approximation we present in this article an alternative

throwing away a billion dollars the cost of suboptimal exercise strategies in the swaptions market abstract this paper studies the costs of applying single factor exercise strategies to american swap options when the term structure is actually driven by multiple factors using a multifactor string market model of the term structure we find that even when single factor models are recalibrated to match the market at every exercise date the exercise strategies they imply can be suboptimal based on estimates of notional amounts outstanding the total present value costs of following single factor strategies could be several billion dollars these results illustrate the importance of using well specified term structure models

the value of domestic building energy efficiency evidence from ireland abstract following the transposition of the eu energy performance of buildings directive into irish law all properties offered for sale or to let in ireland are obliged to have an energy efficiency rating this paper analyses the effect of energy efficiency ratings on the sale and rental prices of properties in the republic of ireland using the heckman selection technique we model the decision to advertise the energy efficiency rating of a property and the effect of energy efficiency ratings on property values our results show that energy efficiency has a positive effect on both the sales and rental prices of properties and that the effect is significantly stronger in the sales segment of the property market we also analyse the effect of energy efficiency across different market conditions and we find that the effect of the energy rating is generally stronger where market conditions are worse

generalized methods of moments we provide a brief overview of applications of generalized method of moments in finance the models examined in the empirical finance literature especially in the asset pricing area often imply moment conditions that can be used in a straight forward way to estimate the model parameters without making strong assumptions regarding the stochastic properties of variables observed by the econometrician typically the number of moment conditions available to the econometrician would exceed the number of model parameters this gives rise to overidentifying restrictions that can be used to test the validity of the model specifications these advantages have led to the widespread use of the generalized method of moments in the empirical finance literature

discretized reality and spurious profits in stochastic programming models for asset liability management in the literature on stochastic programming models for practical portfolio investment problems relatively little attention has been devoted to the question how the necessarily approximate description of the asset price uncertainty in these models influences the optimal solution in this paper we will show that it is important that asset prices in such a description are arbitrage free descriptions which have been suggested in the literature are often inconsistent with observed market prices and or use sampling to obtain a set of scenarios about the future we will show that this effectively introduces arbitrage opportunities in the optimization model for an investor who cannot exploit arbitrage opportunities directly because of market imperfections and trading restrictions we will illustrate that the presence of such arbitrage opportunities may cause substantial biases in the optimal investment strategy

arbitrage opportunities in arbitrage free models of bond pricing mathematical models of bond pricing are used by both academics and wall street practitioners with practitioners introducing time dependent parameters to fit arbitrage free models to selected asset prices we show in a simple one factor setting that the ability of such models to reproduce a subset of security prices need not extend to state contingent claims more generally we argue that the additional parameters of arbitrage free models should be complemented by close attention to fundamentals which might include mean reversion multiple factors stochastic volatility and or nonnormal interest rate distributions

a comparative evaluation of alternative models of the term structure of interest rates abstract in the paper alternative models of the term structure of interest rates are classified in two different approaches the no arbitrage and the general equilibrium approach it is maintained that the general equilibrium approach is superior on a theoretical ground for two main reasons first relevant variables such as the spot interest rate and the interest risk premium are endogenous second the relationship between the real and the financial side of the economy becomes a clear and important element in the understanding of the term structure as regards the applications however the advantages of the general equilibrium over the no arbitrage approach are not so clear the major role in the empiricil performance of alternative models is played by their ability to capture volatility at the current state of the literature there is no model that outperforms others in particular on the empirical side

the production of housing services and the derived demand for residential energy most studies of residential energy usage treat energy as a final consumer good this study explicitly considers the production of housing service flows from stocks of real estate and flows of operating inputs and considers the demand for residential energy as a factor input the empirical results based upon analysis of a sample of newly constructed dwellings and their occupants are used to evaluate the effects of energy price changes on the price of housing services and on the demand for housing and real estate thus indicating the extent of residential energy conservation in response to higher prices finally the results are used to analyze federal and state tax subsidies for residential energy conservation

energy performance ratings and house prices in wales an empirical study this paper investigates the effect of energy performance certificate epc ratings on residential prices in wales drawing on a sample of approximately 192 000 transactions the capitalisation of energy efficiency ratings into house prices is investigated using two approaches the first adopts a cross sectional framework to investigate the effect of epc rating on price the second approach applies a repeat sales methodology to investigate the impact of epc rating on house price appreciation statistically significant positive price premiums are estimated for dwellings in epc bands a b 12 8 and c 3 5 compared to houses in band d for dwellings in band e 3 6 and f 6 5 there are statistically significant discounts such effects may not be the result of energy performance alone in addition to energy cost differences the price effect may be due to additional benefits of energy efficient features an analysis of the private rental segment reveals that in contrast to the general market low epc rated dwellings were not traded at a significant discount this suggests different implicit prices of potential energy savings for landlords and owner occupiers

housing market capitalization of thermal integrity abstract the extent to which housing markets capitalize investments in energy efficiency is important to observe the uncertainty now associated with this process can lead households to allocate resources inefficiently in the production of thermal comfort by substituting more fuel inputs for less capital from a policy perspective the end result of this is the continued construction of units in the housing stock with sub optimal levels of energy efficiency this study is a cross sectional analysis of houses constructed through the energy efficient housing demonstration program of the minnesota housing finance agency values of investments in energy efficiency are derived from a hedonic regression which includes a vector of thermal integrity factors as an independent variable

housing market capitalization of energy saving durable good investments energy conservation in the residential sector depends in large measure upon the willingness of builders and homeowners to invest in the durable goods which result in an energy efficient house since these durable goods generally become attached permanently to the dwelling unit and since ownership of the unit is likely to change within the expected lifetime of the installed equipment the incentive to invest in conservation measures depends upon the efficiency of the housing market in capitalizing the financial benefits of future fuel savings this paper examines housing market efficiency in this regard by first estimating an hedonic price index with the annual fuel bill included as an explicit attribute of the structure then from the estimated hedonic price of a one dollar reduction in annual fuel costs and assumed fuel price escalation rates and remaining lifetimes of the equipment implicit housing market discount rates are calculated the relatively low estimated discount rates indicate that the housing market performs efficiently in capitalizing future fuel savings

unobservables in consumer choice residential energy and the demand for comfort a model of consumption of residential energy in dwellings is developed distinguishing between attributes of housing that provide direct benefits to consumers and attributes that serve as inputs in the production of final goods for example the thermal comfort of dwellings empirical estimates are made of the mode based upon the annual housing survey and the results are used to calculate the effects of changes in energy prices on the consumption of housing residential energy and other goods the analysis suggests that the adjustment process within the housing market permits a great deal of substitution in response to energy price changes copyright 1989 by mit press

nonparametric modeling of u s interest rate term structure dynamics and implications on the prices of derivative securities this paper develops a nonparametric model of interest rate term structure dynamics based on a spot rate process that permits only positive interest rates and a market price of interest rate risk that precludes arbitrage opportunities both the spot rate process and the mar ket price of interest rate risk are nonparametrically specified so that the model allows for maximal flexibility in fitting into the data marginal density of interest rates and historical term structure data are exploited to provide robust estimation of the nonparametric term structure model the model is implemented using u s data and the estimation results are compared to those in the available literature empirical results not only provide strong evidence that most traditional spot rate models and market prices of interest rate risk are misspecified but also confirm that the nonparametric model generates significantly differ ent term structures and prices of common derivatives

building energy efficiency a research branch made of paradoxes abstract the literature dealing with building energy efficiency has long since debated about the possible occurrence of the so called jevons paradox in a nutshell benefiting from energy savings due to transition to high performance buildings may the same savings cause a kind of rebound effect by acting as an incentive to increase consumptions on closer inspection this is not the only paradox affecting the research branch that focuses on the energy used by the buildings and the building industry a second paradox is that investments in energy efficient solutions may contribute to energy price control which in turn lends itself to make the same investments not profitable a third paradox lies in the need to adopt energy intensive materials in order to achieve substantial energy savings in operation hence sometimes we just substitute a certain amount of operating energy with a more or less commensurate amount of embodied energy here we argue that the joint consideration of the paradoxes mentioned above should not be neglected since it brings with itself several implications needing to be disentangled whether we aim to get further enhancements in this disciplinary field

are mortgage lenders guilty of the housing bubble a uk perspective existing theoretical models of house prices and credit rely on continuous rationality of consumers an assumption that has been frequently questioned in recent years meanwhile empirical investigations of the relationship between prices and credit are often based on national level data which is then tested for structural breaks and asymmetric responses usually with subsamples meen 1999 argues that local markets are structurally different from one another and so the coefficients of any estimated housing market model should vary from region to region we investigate differences in the price credit relationship for 12 regions of the uk markov switching is introduced to capture asymmetric market behaviours and turning points results show that credit abundance had a large impact on house prices in greater london and nearby regions alongside a strong positive feedback effect from past house price movements this impact is even larger in greater london and the south east of england when house prices are falling which are the only instances where the credit effect is more prominent than the positive feedback effect a strong positive feedback effect from past lending activity is also present in the loan dynamics furthermore bubble probabilities extracted using a discrete kalman filter neatly capture market turning points

a test of the cox ingersoll and ross model of the term structure we test the theory of the term structure of indexed bond prices due to cox ingersoll and ross cir the econometric method uses hansen s generalized method of moments and exploits the probability distribution of the single state variable in cir s model thus avoiding the use of aggregate consumption data it enables us to estimate a continuous time model based on discretely sampled data the tests indicate that cir s model for index bonds performs reasonably well when confronted with short term treasury bill returns the estimates indicate that term premiums are positive and that yield curves can take several shapes however the fitted model does poorly in explaining the serial correlation in real treasury bill returns article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

exploiting the conditional density in estimating the term structure an application to the cox ingersoll and ross model we propose an empirical method that utilizes the conditional density of the state variables to estimate and test a term structure model with known price formulae using data on both discount and coupon bonds the method is applied to an extension of a two factor model due to cox ingersoll and ross 1985 cir our results show that estimates based on only bills imply unreasonably large price errors for longer maturities we reject the original cir model using a likelihood ratio test and conclude that the extended cir model also fails to provide a good description of the treasury market

a theory of the nominal term structure of interest rates a model of the nominal term structure of interest rates is developed that has a positive and stationary process for the interest rate and delivers closed form expressions for the prices of discount bonds and european options on bonds unlike the one state variable version of the cox ingersoll and ross 1985 model this model even in its one state variable version allows the term premium to change sign as a function of the state and the term to maturity and also allows for shapes of the yield curve that are observed in the u s data but that are disallowed in the cox ingersoll and ross model article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

inflation real returns and capital investment we find evidence for the hypothesis of mundell 1963 and tobin 1965 that the expected real return component of interest rates is negatively related to the expected inflation component in the mundell tobin model the variation in expected real returns is caused by the variation in expected inflation our evidence suggests however that the variation in expected real returns is more fundamentally an outcome of the capital expenditures process equilibrium expected real returns vary directly with capital expenditures in order to induce equilibrium allocations of resources between consumption and investment this positive relation between expected real returns and real activity which comes out of the real sector combines with a negative relation between expected inflation and real activity which is traced to the monetary sector thus inducing the negative relation between expected inflation and expected real returns predicted by mundell and tobin but explained in terms of a model much different from theirs

on alternative interest rate processes abstract in this paper alternative interest rate processes are estimated for denmark germany sweden and the uk using the generalized method of moments gmm in line with the study by chan karolyi longstaff and sanders 1992 on us data there seems to be a positive relation between interest rate level and volatility for some countries in contrast to their study it is found that mean reversion plays an important role for the specification of the interest rate dynamics the results seem to be robust to the use of different moment conditions and simulations of the estimated models reveal that they are fairly able to capture non fitted moments as well in addition there is evidence of a structural change in the danish interest rate process in august 1985 which may be due to a change in monetary policy the small sample properties of the gmm estimators are also studied through simulations

collective action clauses in international sovereign bond contracts whence the opposition in the debate on strengthening the international financial architecture which peaked in 2002 after a series of emerging market sovereign debt crises the universal adoption of collective action clauses cacs was the most promising reform proposal academics and the official sector had been promoting cacs at least since 1995 yet market practice did not begin to change until 2003 this delay is often attributed to the opposition of investors and sovereign borrower to cacs this paper evaluates the publicly stated as well as the suspected private motives of the two sides to block the spread of cacs it draws on a wide range of existing evidence and adds some new theoretical considerations to show that there is no reason to be sceptical of cacs unless bailouts exist as an alternative crisis resolution mechanism this conclusion may be of interest purely for the sake of historical accuracy but more importantly it may help to better understand any potential future resistance by market participants e g in the process of introducing cacs in bonds governed by german law

tests of asset pricing with time varying expected risk premiums and market betas tests of asset pricing models are developed that allow expected risk premiums and market betas to vary over time these tests exploit the relation between expected excess returns and current market values using weekly data for 1963 through 1982 on ten common stock portfolios formed according to equity capitalization a single risk premium model is not rejected if the expected premium is time varying and is not constrained to correspond to a market factor conditional mean variance efficiency of a value weighted stock index is rejected and the rejection is insensitive to how much variability of expected risk premiums is assumed financial economists have studied valuation models in which securities expected returns are related to the covariances of unanticipated returns with the return on the market portfolio or with other risk factors empirical tests of such models typically have employed unconditional sample moments of returns recent studies provide mounting evidence that expected returns change over time with information such evidence presents an opportunity to develop new approaches for evaluating and implementing asset pricing models that exploit this time variation this paper presents new tests of financial valuation models in which expected returns are allowed to vary over time time series of relative

enhancing estimation for interest rate diffusion models with bond prices we consider improving estimating parameters of diffusion processes for interest rates by incorporating information in bond prices this is designed to improve the estimation of the drift parameters which are known to be subject to large estimation errors it is shown that having the bond prices together with the short rates leads to more efficient estimation of all parameters for the interest rate models it enhances the estimation efficiency of the maximum likelihood estimation based on the interest rate dynamics alone the combined estimation based on the bond prices and the interest rate dynamics can also provide inference to the risk premium parameter simulation experiments were conducted to confirm the theoretical properties of the estimators concerned we analyze the overnight fed fund rates together with the u s treasury bond prices supplementary materials for this article are available online

the behavior of interest rates implied by the term structure of eurodollar futures this paper considers an equilibrium model of the term structure that is determined by two stochastic factors a short term interest rate and a target level to which the short rate is expected to revert a kalman filter technique that uses a time series cross section of eurodollar futures prices is developed to estimate the parameters of the model the term structures of spot libor and eurodollar futures volatility are compared to that predicted by the model the empirical results indicate that the two factor specification represents a significant improvement over its one factor version copyright 1996 by ohio state university press

simulated likelihood estimation of diffusions with an application to exchange rate dynamics in incomplete markets abstract we present an econometric method for estimating the parameters of a diffusion model from discretely sampled data the estimator is transparent adaptive and inherits the asymptotic properties of the generally unattainable maximum likelihood estimator we use this method to estimate a new continuous time model of the joint dynamics of interest rates in two countries and the exchange rate between the two currencies the model allows financial markets to be incomplete and specifies the degree of incompleteness as a stochastic process our empirical results offer several new insights into the dynamics of exchange rates

empirical analysis of the yield curve the information in the data viewed through the window of cox ingersoll and ross this paper uses recent advances in bayesian estimation methods to exploit fully and efficiently the time series and cross sectional empirical restrictions of the cox ingersoll and ross model of the term structure we examine the extent to which the cross sectional data five different instruments provide information about the model we find that the time series restrictions of the two factor model are generally consistent with the data however the model s cross sectional restrictions are not we show that adding a third factor produces a significant statistical improvement but causes the average time series fit to the yields themselves to deteriorate

the value of energy efficiency and the role of expected heating costs the german energy performance of buildings directive requires sellers on the housing market to provide detailed information on expected yearly energy consumption per square meter energy performance eps this paper uses variation in local fuel prices and climate fuel types and building ages to analyse the relationship between expected energy cost savings from energy efficient building structure and house prices in a data set of listing prices from all regions of germany results suggest that heating cost considerations are less relevant than previously thought

a comparison of inflation forecasts interest rate models provide slightly better monthly forecasts and substantially better eight and fourteen month forecasts of inflation than a univariate time series model the livingston surveys underestimate eight and fourteen month inflation rates especially during the high inflation period of 1978 81 in contrast eight and fourteen month inflation forecasts extrapolated from one month interest rates show little bias and track ex post eight and fourteen month inflation rates better than the survey forecasts

real and nominal interest rates under uncertainty the fisher theorem and the term structure this paper examines the relation between nominal and real interest rates and the nominal and real term structure under uncertainty we show that two separate risk terms cause the fisher theorem to fail one risk term is related only to the variability of money prices while the other is related to the purchasing power riskiness of the nominal bond monetary policy can affect the value of both these risk terms we also show that the pure expectations hypothesis of the term structure fails for both real and nominal bonds because of risk premia even if the economy is neutral with respect to monetary policy monetary policy can alter the nominal term structure

inflation risk premia and the expectations hypothesis abstract we study the properties of the nominal and real risk premia of the term structure of interest rates we develop and solve the bond pricing implications of a structural monetary version of a real business cycle model with taxes and endogenous monetary policy we show the relation of this model with the class of essentially affine models that incorporate an endogenous state dependent market price of risk we characterize and estimate the inflation risk premium and find that over the last 40 years the ten year inflation risk premium has been has averaged 70 basis points it is time varying ranging from 20 to 140 basis points over the business cycle and its term structure is sharply upward sloping the inflation risk premium explains 23 42 of the time variation in the five ten year forward risk premium and it plays an important role in help explain deviations from the expectations hypothesis of interest rates

does energy efficiency matter to home buyers an investigation of epc ratings and transaction prices in england abstract this paper investigates whether energy performance ratings as measured by mandatory energy performance certificates epcs are reflected in the sale prices of residential properties this is the first large scale empirical study of this topic in england involving 333 095 dwellings sold at least twice in the period from 1995 to 2012 applying hedonic regression and an augmented repeat sales regression we find a positive relationship between the energy efficiency rating of a dwelling and the transaction price per square metre the price effects of superior energy performance tend to be higher for terraced dwellings and flats compared to detached and semi detached dwellings the evidence is less clear cut for rates of house price growth but remains supportive of a positive association overall the results of this study suggest that energy efficiency labels have a measurable and significant impact on house prices in england

pricing interest rate options in a two factor cox ingersoll ross model of the term structure solutions are presented for prices on interest rate options in a two factor version of the cox ingersoll ross model of the term structure specific solutions are developed for caps on floating interest rates and for european options on discount bonds coupon bonds coupon bond futures and euro dollar futures the solutions for the options are expressed as multivariate integrals and we show how to reduce the calculations to univariate numerical integrations which can be calculated very quickly the two factor model provides more flexibility in fitting observed term structures and the fixed parameters of the model can be set to capture the variability of the term structure over time article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

explorations into factors explaining money market returns in this article we measure and interpret the common factors that describe money market returns results are presented for both three and four factor models we find that the three factor model explains on average 86 percent of the total variation in most money market returns while the four factor model explains on average 90 percent of this variation using mimicking portfolios we provide an interpretation of the systematic risks represented by these factors in this article we attempt to measure and interpret the common factors that describe money market returns the factor approach we employ assumes that the covariance matrix of a set of random variables in this case excess returns can be decomposed into common or systematic components and idiosyncratic or nonsystematic components this decomposition into systematic and nonsystematic components is based on an assumption of a linear relationship between the returns of each security and a set of common factors this is the assumption of linear return generating models which form an integral part of the structure of many asset pricing theories for example arbitrage pricing theory apt as developed by ross 1976 the interpretation is that the common factors represent sources of systematic or nondiversifiable risk and the idiosyncratic component of returns represents diversifiable risks our focus here is not on testing a particular asset pricing model per se but on developing empirical evidence for the existence of stylized facts regarding money market returns the stylized facts take the form of the existence measurement and interpretation of the common factors that are found in money markets our attempt to measure and interpret these sources of systematic risk may eventually lead to the construction of observable eco

another look at models of the short term interest rate the short term rate of interest is fundamental to much of theoretical and empirical finance yet no consensus has emerged on the dynamics of its volatility we show that models which parameterize volatility only as a function of interest rate levels tend to over emphasize the sensitivity of volatility to levels and fail to model adequately the serial correlation in condi tional variances on the other hand serial correlation based models like garch models fail to capture adequately the relationship between interest rate levels and volatility we introduce and test a new class of models for the dynamics of short term interest rate volatility which allows volatility to depend on both interest rate levels and information shocks two important conclusions emerge first the sensitivity of interest rate volatility to interest rate levels has been overstated in the literature while this relationship is important adequately modeling volatility as a function of unexpected information shocks is also important sec ond we conclude that the volatility processes in many existing theoretical models of interest rates are misspecified and suggest new paths toward improving the theory

discrete time valuation of american options with stochastic interest rates we develop an arbitrage free discrete time model to price american style claims for which domestic term structure risk foreign term structure risk and currency risk are important this model combines a discrete version of the heath jarrow and morton 1992 term structure model with the binomial model of cox ross and rubinstein 1979 it converges weakly to the continuous time models in amin and jarrow 1991 1992 the general model is path dependent and can be implemented with arbitrary volatility functions to value claims with maturity up to five years the model is illustrated with applications to long dated american currency warrants and a cross rate swap from the quanto class article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

stochastic processes for interest rates and equilibrium bond prices default free bonds represent in essence money sold forward the investor gives dollars say to the government now in exchange for a contract which promises to pay with probability one a given number of dollars at maturity and possibly a stream of intermediate coupon payments prior to maturity only recently have financial economists begun to examine the pricing of those bonds in a portfolio context in that framework nominal liquidity premiums or risk premiums on long term default free bonds are attributable to uncertainty about taste technological and price level changes which may occur prior to maturity of the bonds and prior to each coupon payment if any to the extent that the investor is unable to diversify away that uncertainty there is a systematic risk attached to the marginal utility which he or she can derive from the use in consumption or investment of the dollar payoffs on the bonds in some term structure models the instantaneous or short term rate of interest denoted here as a function of time t by r t in nominal terms and r t in real terms can be taken as a sufficient statistic1 for the source of systematic uncertainty about the marginal utility of the proceeds to be derived from defaultfree bonds maturing beyond the next instant e g merton 1974 vasicek 1977 cox ingersoll and ross 1977 specific assumptions about tastes technology and utility functions lead to specific equilibrium stochastic processes for the instantaneous short term riskless rate and longer term bond prices which are modelled as functionally dependent upon maturity and that short term riskless rate if a closed form solution exists for the long term bond price as a function of maturity and the short term interest rate it will be conditional inter alia on the parameters of the stochastic process for that short term rate marsh 1981 proposed that the closed form solutions could be tested in terms of the restrictions implied cross sectionally on the parameters of the time series process for the returns or prices of longer term bonds each with a given term to maturity for an analogy outside the term structure literature think of the closed form solution given by black and scholes 1972 for the price of an option on a nondividend paying stock with lognormal price dynamics given the model the cross section of time series for the changes in prices for each of the several options written on the same stock are not unrestricted their dispersion is functionally linked to the same volatility parameter for the stock price thus the option model including

the impacts of energy efficiency policies meta analysis abstract this paper attempts to quantitatively summarize the existing empirical evidence on the effects of energy efficiency policies on energy demand and on the price of associated durable goods as well as to identify the main factors that systematically affect the estimated impacts to this end a meta regression analysis of the effects of energy efficiency policies is carried out on the basis of an extensive review of the existing literature selecting those studies that analyze the impact of energy efficiency policies with respect to a business as usual setting taking into account the econometric problems associated with this type of analysis intra class correlation cross sectional dependence publication bias in pursuit of robust outcomes the results show that the studies analyzing the effects of energy efficiency policies estimate a significant impact of these policies on energy demand 10 5 8 8 and the price of related durable goods 7 9 6 the main factors that influence results are the policy instrument the targeted sector the type of country the analyzed period the consideration of free riders and the type of analysis data and publication energy demand and the sector and analyzed period price of durables

real and nominal interest rates a discrete time model and its continuous time limit i provide a general equilibrium theory of the term structure of real interest rates in a discrete time economy i derive the prices for one period and two period real bonds and a simple recursive formula for general k period bonds and prove that the price formula with appropriately specified parameters converges to that of the cox ingersoll and ross model 1985 in addition i consider the behavior of nominal bond prices in a partial equilibrium setting in which an exogenous price level process is correlated with the real economy finally i provide an illustrative empirical investigation of the model the results indicate a significant correlation between the price level and the growth rate of consumption which does not support the money nuetrality assumption underlying cox ingersoll and ross s nominal bond prices and related empirical studies such as gibbons and ramaswamyu 1992 heston 1991 and pearson and sun 1991 article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies