an analysis of default risk in mobile home credit abstract there are approximately us 22 billion in outstanding receivables and an active secondary market for mobile home credit in the united states this important segment of the financing industry shares some attributes with traditional home mortgage financing and other attributes with consumer credit in this paper we draw on the mortgage literature to postulate the determinants of default risk for mobile home loans using multivariate logit models we investigate the relevance of payment history loan terms borrower characteristics economic conditions and legal constraints in analyzing loan defaults and delinquencies payment history emerges as the overwhelming factor in predicting the likelihood of default

the behavior of futures prices a review of theory and evidence how do futures prices behave the evidence indicates that they are typically a biased predictor of spot prices at maturity however the typical contention that this bias reflects the existence of a seasonal risk premium is not strongly supported by observations although futures markets are used by risk averse producers seeking the insurance offered by risk bearing speculators hedgers have been able to buy their insurance relatively cheaply in many cases even profiting from their futures trading speculators earnings seem to depend on their forecasting skills not on the mere existence of a risk premium other evidence suggests that the existence of a bias in a particular market owes more to the unique characteristics of the underlying commodity than to the market s structural characteristics tests of the random character of futures prices have found some degree of serial dependence but it is not clear whether these dependencies can be profitably exploited studies of the volatility of futures price indicate that volatility changes over the life of a contract the changes appear to depend upon distributions of the underlying state variables and the time to maturity with the seasonal state variable effect being dominant so that volatility may rise or fall over the contract s life multiperiod equilibrium pricing models of futures and forward contracts show that the futures and forward prices usually differ because of marking to market in the futures market unlike forward trading futures trading represents speculation on both the instantaneous interest rates and the spot prices consequently futures prices depend on the comovement of spot prices and interest rates

financial futures hedging via goal programming this paper presents multiperiod multiple objective goal programming as an alternative to the more conventional hedge ratio approaches to financial futures hedging the described model offers the potential benefits of i simultaneous achievement of multiple hedge related objectives i e minimization of transactions and margin opportunity costs regulation of cash flow and maximization of profits accruing from both the cash and futures positions and ii periodic modification and updating of the futures position as suggested by actual observed prices and interest rates throughout the hedging period to assess its overall effectiveness the model was applied to develop appropriate hedging strategies for three separate time periods each representing a unique interest rate trend i e upward movement downward movement and no change since real world implementation of the model requires the use of forecast data independent forecasts of both cash and futures prices were generated via 1 moving average 2 exponential smoothing and 3 random walk techniques in progressing through each of the 13 week time periods all forecasts were updated with the previous weeks actual price data revised forecasts and actual price data were then incorporated into the model constraints on a weekly schedule this approach in essence provided weekly futures activity recommendations based on the most recent price and interest rate developments observed at any point during the hedging period the realized gains or losses were then compared to the previously derived perfect foresight model results and to the traditional hedge ratio results this allowed for evaluation of the model s effectiveness under varying forecast methods and varying interest rate trends the results show that the goal programming model outperformed other strategies in most cases

the effects of decision making on futures price volatility existing literature on commodity futures price volatility emphasizes time to expiration and the resolution of uncertainty in this paper we stress the supply and demand inflexibilities arising from decision making a decision made on the supply demand side makes future supply demand responses less elastic therefore a shock arising after a decision is made is more effective in changing the futures price than a shock before the decision is made the results support the time to maturity hypothesis but do not conflict with the state variable hypotheses of futures price volatility evidence supporting the impacts of inflexibilities are presented for corn soybean and wheat contracts

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

an equilibrium analysis of hedging with liquidity constraints speculation and government price subsidy in a commodity market we develop a simple commodity model to analyze i the effects of hedgying with liquidity constraints due to producers inability to bear unlimited trading losses ii the role of speculation in the process of risk allocation between consumers and producers and iii the equilibrium implications of government price subsidies to the producers we find that 1 liquidity constraints can cause futures prices to exhibit mean reversion which then makes speculation profitable 2 speculation tends to make futures price volatility an increasing function of futures price and 3 government price subsidy if actively hedged by the producers serves to lower the futures risk premium and reduce futures volatility commodity spot and futures prices are determined by the following types of market participants producers consumers speculators and governments producers have generally taken short futures positions in order to hedge against price declines consumers have generally taken long futures positions in order to hedge against price increases speculators who neither produce nor intend to consume the commodity are present in the spot and futures markets for the purpose of making a profit governments play significant roles in the markets by providing producers with various support programs and in some cases by directly intervening in the markets to affect commodity prices or adjust inventory levels the traditional approach to commodity futures pricing has been based on the theory of storage 1 as fama and french 1987 1988 show this approach to commodity pricing is particularly useful for explaining the basis movement as a function of inventory levels based on the hypothesis that the marginal convenience yield on inventory declines at a decreasing rate as

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

price volatility trading volume and market depth evidence from futures markets the relations between volume volatility and market depth in eight physical and financial futures markets are examined evidence suggests that linking volatility to total volume does not extract all information when volume is partitioned into expected and unexpected components the paper finds that unexpected volume shocks have a larger effect on volatility further the relation is asymmetric the impact of positive unexpected volume shocks on volatility is larger than the impact of negative shocks finally consistent with theories of market depth the study shows large open interest mitigates volatility

the behavior of forward looking firms in the very short run the study develops a theory of very short run forward looking behavior allowing for forward trading and storage of final good and material input production and storage are separable from hedging decisions and depend only upon current forward and cash prices comparative statics are derived regarding production purchases and sales the hypotheses advanced are tested with monthly data pertaining to the u s soybean processing industry results suggest that in short run equilibrium futures prices of the soybean complex have had little influence on crushings or production but they have been important determinants of inventory levels

valuing the mortality risk of wildlife reintroduction heterogeneous risk preferences abstract this study is the first to value the mortality risk incurred from wildlife reintroduction we conducted choice experiments on wolf reintroduction in hokkaido japan in order to value the resulting mortality risk this process involves three unique factors the mortality risk is zero before the reintroduction the increment of the risk caused by the reintroduction is substantially small and the risk largely depends on citizens individual characteristics concerning reintroduction because of these factors the heterogeneity of risk preference is expected to be large in order to examine these heterogeneous risk preferences we use a random parameter logit model the estimation results confirm that considerable heterogeneous risk preferences exist finally the mean marginal willingness to pay to prevent the loss of one person per one billion people because of wolf reintroduction is several hundred yen

a generalized valuation model for fixed rate residential mortgages this paper uses option pricing techniques to rationally price mortgage instruments subject to both default and prepayment risk attention is given to terminations due to purely financial consideration of the mortgage contract itself as well as to personally induced terminations explicit inclusion of default in the mortgage valuation procedure also permits the valuation of insurance against such default qualitatively it is found that default differs significantly in the behavior from either prepayment or nonfinancial termination quantitatively however there is significant substitution between prepayment and default so that the addition of a default feature to the contract has only a modest impact on mortgage values unless there is substantial price volatility in the housing market or a high loan to value ratio copyright 1992 by ohio state university press

testing the martingale hypothesis in deutsche mark futures with models specifying the form of heteroscedasticity summary we examine the form of heteroscedasticity in deutsche mark futures price data and compare different specifications of the particular way that the variance is changing over time the martingale hypothesis is tested with daily and weekly rates of change of futures prices for the deutsche mark and some evidence is found against this hypothesis in analyses of daily data from 1981 to 1985 this rejection of the martingale hypothesis may be attributed to trading day effects in foreign currency prices and the resulting day of the week patterns in futures prices when the martingale hypothesis is tested with weekly data the null hypothesis is retained

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

valuing commercial mortgages an empirical investigation of the contingent claims approach to pricing risky debt this paper empirically investigates a contingent claims model of commercial mortgage pricing we find that the magnitude of the observed default premia for a sample of nonprepayable fixed rate bullet mortgages can be explained by the contingent claims model in addition the model explains a significant proportion of the period to period changes in the default premia however given an assumed negative correlation between building value changes and interest rate changes the model s risk structure tends to increase less steeply with increasing maturity than the observed risk structure since the seminal work of black and scholes 1973 corporate liabilities have been modeled as options on the total value of the firm this contingent claims approach to bond pricing was refined by merton 1974 to allow for cash dispersals prior to the bonds maturities and by brennan and schwartz 1980 and ingersoll 1987 to allow for interest rate uncertainty although variants of these bond pricing models are currently being used extensively on wall street they have not been tested extensively moreover empirical studies have not successfully accounted for the observed spread between the rates on risky and default free debt jones mason and rosenfeld 1984 empirically investigate a model that assumes a nonstochastic term structure of interest rates while ramaswamy and sundaresan 1986 examine a model with stochastic interest rates to price floating rate notes in both cases the models could not explain the observed default premia the relative lack of empirical analysis is due partly to the complicated nature of corporate bonds major corporations generally have a large number of different bond issues outstanding that have different priorities in the event that the firm goes bankrupt moreover the bonds can have a variety of covenants specifying sinking fund provisions conditions under which technical default will occur and other restrictions that can have an impact on their value although these complications do not preclude pricing various bond issues on a case by case basis they make it difficult to test systematically the accuracy of the pricing model

testing for weak form efficiency of crude palm oil spot and future markets new evidence from a garch unit root test with multiple structural breaks there is a sizeable literature that tests for weak form efficiency in commodity and energy spot and future prices while many studies now allow for multiple structural breaks to address the criticism that conventional unit root tests have low power to reject the unit root null in the presence of structural change the extant literature overlooks the fact that conventional unit root tests are biased in the presence of conditional heteroscedasticity we apply a recently developed generalized autoregressive conditional heteroscedasticity garch unit root test with multiple structural breaks to crude palm oil spot and future prices and find much more evidence against weak form efficiency than that found using tests that fail to allow for conditional heteroscedasticity our results point to the importance of allowing for heteroscedasticity when testing for efficiency in commodity and energy spot and future prices

electricity markets volatility estimates regularities and risk management applications the recent deregulation of the market for electric power in many parts of the us and canada has expanded the set of potential tools for managing the types of risks faced by both generators and consumers of electric power in particular manufacturing and other firms whose operations are powered by electricity now face on a continuing basis the engineering management decisions concerning whether they should buy or produce electricity and if they are to buy or sell electricity what types of contracts are optimum these types of risk management decisions typically involve futures forwards options and other financial derivatives the price and volatility of electric power are known to play an essential role in determining which of these instruments should be used however electricity as a commodity possesses certain special features not shared by other commodities and hence its risk properties are not yet well understood in this paper we consider and test certain hypotheses about the properties of electricity price using recent market data we find that electricity prices possess certain volatility and other systematic properties that can be characterized by the type and method of delivery of electricity these properties can be used by firms in formulating their optimal demand and supply schedules of electric power

nonresponse in contingent valuation reducing uncertainty in value inference this paper focuses on problems associated with nonresponse in contingent valuation surveys the results from a telephone follow up survey show that value inference can be considerably improved by information on nonrespondents attitudes

optimal storage by crop producers when post harvest marketing strategies are restricted by disallowing speculative purchases sales out of storage becomes an irreversible decision and the dynamic marketing problem becomes analogous to the optimal exercise of a financial option the optimal marketing strategy is to hold at low prices and to sell at high prices with a cutoff price function marking the boundary between low and high prices a method for estimating the cut off price function is developed and applied to illinois soybean prices the decision rule is demonstrated to result in substantial gains from storage copyright 2002 oxford university press

how does germany s green energy policy affect electricity market volatility an application of conditional autoregressive range models abstract based on a dynamic model for the high low range of electricity prices this article analyses the effects of germany s green energy policy on the volatility of the electricity market using european energy exchange data from 2000 to 2015 we find rather high volatility in the years 2000 2009 but also that the weekly price range has significantly declined in the period following the year 2009 this period is characterised by active regulation under the energy industry law enwg the eu emissions trading directive etd and the renewable energy law eeg in contrast to the preceding period price jumps are smaller and less frequent especially for day time hours implying that current policy measures are effective in promoting renewable energies while simultaneously upholding electricity market stability this is because the regulations strive towards a more and more flexible and market oriented structure which allows better integration of renewable energies and supports an efficient alignment of renewable electricity supply with demand

conditional convergence in us disaggregated petroleum consumption at the sector level abstractwe test for convergence in disaggregated petroleum consumption at the sector level for the united states using the recently proposed garch unit root test suitable for high frequency data we find evidence of convergence for just over half of the series including total petroleum consumption in each sector and approximately three quarters of the disaggregated petroleum consumption series in transportation

heteroskedasticity robust panel unit root tests this article proposes new unit root tests for panels where the errors may be not only serial and or cross correlated but also unconditionally heteroscedastic despite their generality the test statistics are shown to be very simple to implement requiring only minimal corrections and still the limiting distributions under the null hypothesis are completely free from nuisance parameters monte carlo evidence is also provided to suggest that the new tests perform well in small samples also when compared to some of the existing tests supplementary materials for this article are available online

could the global financial crisis improve the performance of the g7 stocks markets abstractfinancial crises are normally associated with negative effects on financial markets in this article we investigate whether the most recent global financial crisis gfc had any positive impact on the g7 canada france germany italy japan the united kingdom and the united states indices to conduct the analysis we employ the mean variance mv analysis capm statistics hurst exponent runs test multiple variation ratio test and stochastic dominance sd tests our mv and capm results conclude that most of the g7 stock indices are significantly less volatile the results from hurst exponent run tests and multiple variation ratio confirm that efficiency improved in the post gfc period finally our sd results conclude that there is no arbitrage opportunity and the markets are efficient due to the gfc and in general investors prefer investing in the indices after the gfc overall we conclude that the gfc led to markets that are more efficient and mature confirming that crises can also

modelling and forecasting mortgage delinquency and foreclosure in the uk in the absence of micro data in the public domain new aggregate models for the uk s mortgage repossessions and arrears are estimated using quarterly data over 1983 2014 motivated by a conceptual double trigger frame framework for foreclosures and payment delinquencies an innovation to improve on the flawed but widespread use of loan to value measures is to estimate difficult to observe variations in loan quality and access to refinancing and shifts in lenders forbearance policy by common latent variables in a system of equations for arrears and repossessions we introduce for the first time in the literature a theory justified estimate of the proportion of mortgages in negative equity as a key driver of aggregate repossessions and arrears this is based on an average debt equity ratio corrected for regional deviations and uses a functional form for the distribution of the debt equity ratio checked on irish micro data from the bank of ireland and bank of england snapshots of negative equity we systematically address serious measurement bias in the months in arrears measures neglected in previous uk studies highly significant effects on aggregate rates of repossessions and arrears are found for the aggregate debt service ratio the proportion of mortgages in negative equity and the unemployment rate economic forecast scenarios to 2020 highlight risks faced by the uk and its mortgage lenders illustrating the usefulness of the approach for bank stress testing for macroeconomics our model traces an important part of the financial accelerator the feedback from the housing market to bad loans and hence banks ability to extend credit

the samuelson hypothesis in futures markets an analysis using intraday data this paper considers the samuelson hypothesis which argues that the futures price volatility increases as the futures contract approaches its expiration utilizing intraday data from 20 futures markets in six futures exchanges we find strong support for the samuelson hypothesis in agricultural futures however the samuelson hypothesis does not hold for other futures contracts we also provide supporting evidence that the negative covariance hypothesis is the key factor for the empirical support of the samuelson hypothesis in addition our findings remain largely unaltered even after we control for seasonality and liquidity effects

the asian debt and development crisis of 1997 causes and consequences abstract interpretations of the asian crisis have coalesced around two rival stories the death throes of asian state capitalism story about internal real economy causes and the panic triggering debt deflation in a basically sound but under regulated system story that gives more role to external and financial system causes the paper presents the stories and assesses the evidence the evidence in particular the chronology of the crisis supports the second rather better than the first the paper discusses the interests driving capital account liberalization without a framework of regulation the single most irresponsible act of public authorities in the whole crisis us and uk financial firms allied with their treasuries and with the imf the wto and the oecd saw themselves at a chronic disadvantage in the asian system of long term relationships and patient capital this alliance supported by segments of asian political and financial elites achieved dramatic domestic financial sector liberalization and capital account opening in asia over the 1990s setting up the conditions for crisis paradoxically the crisis may be looked back upon not as the triumph of benign globalization and neoliberal economic doctrine but as the beginning of its end

the effect of risk characteristics on the willingness to pay for mortality risk reductions from electric power generation the objective of this study is to estimate willingness to pay wtp for the reduction of mortality risks caused by fossil fuel natural gas coal and oil versus nuclear electric power generation systems and to examine the influence of risk characteristics involved with electric power generation on wtp a choice experiment was conducted to achieve these objectives the attributes for nuclear risks in the experiment included the probability of disasters and the expected losses if a disaster occurs we find evidence of i a baseline effect where wtp is sensitive to hypothetical versus actual baseline expected mortality ii a labeling effect where surprisingly the term nuclear has no effect on wtp but the term fossil fueled power generation results in lower wtp and iii disaster aversion meaning that people focus on the conditional loss from a nuclear disaster not the probability we also find that the wtp for reducing deaths from a nuclear disaster is about 60 times the wtp for routine reducing fossil fuel generation related deaths

fairness in the contingent valuation of environmental public goods attitude toward paying for environmental improvements at two levels of scope abstract respondents to contingent valuation cv surveys give a variety of reasons for not wanting to pay money this variability is likely to reflect people s attitudes toward paying for the public good change their attitudes toward paying for public goods in general and a component that is independent of these attitudes but unique to particular beliefs about paying e g i can t afford to pay negative attitudes toward paying can contribute to an apparent insensitivity to different levels of the same public good in a telephone survey northern wisconsin property owners were asked about their wtp for four environmental public goods biodiversity indian spearfishing water quality and wolves at two levels of scope part and whole for water quality and spearfishing the part was a chain of lakes that was geographically nested within a larger region of lakes similarly the biodiversity whole represented a region comprising the smaller level of the public good the scope conditions for wolves were quantitatively nested levels of returning 300 and 800 wolves to northern wisconsin respondents beliefs about paying for each public good and level of scope were measured in order to test their generality across the different public goods and levels of scope negative attitudes toward paying that are general across public goods place restrictions on the use of cv for environmental public goods however negative attitudes that are tied to specific environmental public goods suggest that the valuation method might be difficult to implement in these cases only moreover negative attitudes toward paying that are either general or specific may contribute to perfect embedding when they are expressed across different levels of scope for the same public good respondents beliefs about paying for each public good were associated with an attitude toward paying for the respective good and an attitude toward paying for public goods in general at both levels of scope the general attitude was more explanatory of beliefs about paying for wolf reintroduction and spearfishing than were the specific attitudes the distribution of beliefs was sensitive to the type of good being valued but less so to the scope of the public good change contingent valuation practitioners should seek improvements in respondents perceptions of the fairness of the valuation process in order to facilitate citizens involvement in decisions about environmental public goods avenues for future research are proposed and discussed

assessing the information content of mark to market accounting with mixed attributes the case of cash flow hedges we examine how outsiders rationally interpret a reported loss on derivatives when the application of mark to market accounting to cash flow hedges creates a mixed attribute problem we find that because of the mixed attribute problem the information content of mark to market accounting is related to the information content of historical cost accounting in a very specific way this relationship allows us to identify the circumstances under which mark to market accounting facilitates and when it detracts from the objective of providing an early warning of potential financial distress we show that the reporting of an impending derivative loss by a distressed firm can actually lead outsiders to infer that the firm is in a better financial position than what they would have inferred under the silence associated with historical cost accounting without the mixed attribute problem mark to market accounting would always yield more accurate assessments of the firm s financial position

defaults on mortgage obligations and capital requirements for u s savings institutions abstract this paper analyzes credit risk for residential mortgages estimates of the hazard of mortgage default are presented based upon a large sample of conventional loans issued in the late 1970s mean returns are estimated together with variances and covariances for various loan to value ltv ratios and geographic groups these results are then used to analyze capital requirements for institutions holding mortgages we ask for a given bankruptcy risk how should capital requirements vary by ltv and geographical diversification the empirical results indicate that both factors have powerful effects upon bankruptcy risk thus capital requirements should vary substantially along these dimensions

volatility in electricity derivative markets the samuelson effect revisited this article proposes an empirical study of the samuelson effect in electricity markets our motivations are twofold first although the literature largely assesses the decreasing pattern in the volatilities along the price curve in commodity markets it has not extensively tested the presence of such a dynamic feature in electricity prices second the analysis of a non storable commodity enriches the literature on the behavior of commodity prices indeed it has been sometimes asserted that the samuelson effect results from the presence of inventories we examine the four most important electricity futures markets worldwide for the period from 2008 to 2014 the german nordic australian and us markets we also use the american crude oil market as a benchmark for a storable commodity negotiated on a mature futures market our analysis has two steps i in addition to the traditional tests we propose and test a new empirical implication of the samuelson effect price shocks should spread from the physical market to the paper market and not the reverse ii based on the concept of indirect storability we investigate the link between the samuelson effect and the storability of the commodity we find evidence of a samuelson effect in all of the electricity markets and show that storage is not a necessary condition for such an effect to appear these results should be taken into account for the understanding of the dynamic behavior of commodity prices for the valuation of electricity assets and for hedging operations

the determinants of default on insured conventional residential mortgage loans this paper presents empirical evidence on the determinants of default for insured residential mortgages a multinomial logit model is specified and estimated for regional aggregates constructed from cross sectional and time series data the results document the independent statistical significance of contemporaneous payment income and loan value ratios and unemployment rates as well as more commonly studied determinants of default such as age and the original loan value ratio

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

pricing mortgage default and foreclosure delay this paper extends current mortgage pricing models to recognize the impact that delays between default and foreclosure have on the value of default to the borrower and the resulting value of the mortgage to investors the model explicitly captures potential costs through postforeclosure deficiency judgments and benefits in the elimination of negative equity and free rent that must be weighed at the time of default in determining whether the ultimate put option via allowing foreclosure is in the money the results provide policy implications concerning the operation of the fha insurance program copyright 1997 by ohio state university press

non renewable resource prices deterministic or stochastic trends in this paper we examine temporal properties of 11 natural resource real price series from 1870 to 1990 recent studies by ahrens and sharma trends in natural resource commodity prices deterministic or stochastic j environ econom manage 33 1997 59 74 berck and roberts natural resource prices will they ever turn up j environ econom manage 31 1996 65 78 and slade grade selection under uncertainty least cost last and other anomalies j environ econom manage 15 1988 189 205 among others find that many non renewable resource prices have a stochastic trend we revisit this issue by employing a lagrangian multiplier unit root test that allows for two endogenously determined structural breaks with and without a quadratic trend contrary to previous research we find evidence against the unit root hypothesis for all price series our findings support characterizing natural resource prices as stationary around deterministic trends with structural breaks we additionally show that both pre testing for unit roots with breaks and allowing for breaks in the forecast model can improve forecast accuracy overall the results in this paper are important in both a positive and normative sense without an appropriate understanding of the dynamics of a time series empirical verification of theories forecasting and proper inference are potentially fruitless

evaluating the effect of alternative risk communication devices on willingness to pay results from a dichotomous choice contingent valuation experiment two versions of a contingent valuation questionnaire that differ only in the device used to communicate risks from hazardous waste were sent to california households both risk communication devices provide wtp functions which vary in a statistically significant fashion with the absolute risk reduction however these empirical results also demonstrate that different risk communication devices produce statistically different logit equations and hence estimates of willingness to pay wtp for reductions in exposure to hazardous waste the pros and cons of using each risk communication device in cvm surveys is also discussed

unit root properties of crude oil spot and futures prices in this article we examine whether wti and brent crude oil spot and futures prices at 1 3 and 6 months to maturity contain a unit root with one and two structural breaks employing weekly data over the period 1991 2004 to realise this objective we employ lagrange multiplier lm unit root tests with one and two endogenous structural breaks proposed by lee and strazicich 2003 minimum lagrange multiplier unit root test with two structural breaks review of economics and statistics 85 1082 1089 2004 minimum lm unit root test with one structural break working paper no 04 17 department of economics appalachian state university we find that each of the oil price series can be characterised as a random walk process and that the endogenous structural breaks are significant and meaningful in terms of events that have impacted on world oil markets

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

a simple multiperiod minimum risk hedge model a multiperiod hedging model is developed that is simpler than other multiperiod models in the literature the model permits periodic adjustment of the hedge while minimizing the producer s profit variance minimum risk hedge ratios are calculated for steers cows hogs corn and soybeans using the full model with hedge adjustments every two months these ratios are compared to those using the model without periodic hedge adjustments and to a simple single period model the results suggest that simple models may work well for simple hedges while the full model is best for more complex hedging situations such as cross hedges our purpose in this paper is to develop a multiperiod hedging model in which the hedge can be updated each period other multiperiod hedging models e g anderson and danthine karp have substantial data requirements which limit their use as viable hedging tools our aim is to develop a simpler model that will have practical application the model is used to calculate minimum risk hedge ratios for steers cows hogs corn and soybeans and these ratios are compared with hedge ratios based on a multiperiod model in which the hedge cannot be adjusted each period simple minimum risk hedge ratios also are computed for each commodity and compared with the other ratios

the credit constrained consumer an empirical study of demand and supply in the loan market this article presents an empirical analysis of credit constrained households in which models of both demand and supply sides of the market for loans are simultaneously estimated we develop a discrete choice logit model of the consumers decision on whether or not to apply for credit combining this with a reduced form logistic model for the banks credit granting decision we then estimate the model with cross sectional data as a nonlinear ordered sequential logit our findings shed light on the criteria used by banks in assessing credit applications and reveal the strong dependence of preferences on demographic characteristics the results also suggest that agents face significant fixed costs in applying for loans the fact that we jointly estimate models of both supply and demand sides of the credit market enables us to examine whether particular groups in the population are more frequently credit rationed because they tend to demand more loans or because they are viewed as bad credit risks by lenders

mortgage default and possession under recourse a competing hazards approach recent studies by ambrose buttimer and capone have stressed the fact that lender and borrower decisions after the initial default on amortgage may significantly affect the amount and timing of recoveries and hence more broadly the value and riskiness of mortgage loan portfolios this study uses microeconomic data from the uk to examine the timing decisions of mortgage lenders and borrowers when mortgages are in default the results suggest that salary and interest rates influence timing decisions more than loan to value ratios do and that lenders and borrowers accelerate the resolution of delinquent mortgages as the economic climate deteriorates

a contingent valuation estimate of the benefits of wolves in minnesota in this paper we estimate the willingness topay for a wolf management plan and a wolfdamage plan in minnesota using the contingentvaluation method the theoretical definition ofwillingness to pay for wolf protection iscomposed of use and non use values weincorporate a don t know response option in thedichotomous choice valuation questions a largenumber of respondents answered don t know themultinomial logit model is used todifferentiate between don t know and noresponses non use motives are importantfactors that explain willingness to pay we usethese benefit estimates in combination with twoalternative cost estimates to consider theefficiency of the wolf management and damageplans both plans have estimated benefitsgreater than costs