was the emergence of the international gold standard expected evidence from indian government securities abstract the emergence of the gold standard has for a long time been viewed as inevitable we analyze agents expectations using the spread between gold and silver bonds issued by the indian government we find that bimetallism was credible until france surprised markets by suspending domestic operation of bimetallism triggering a run away from silver thereafter markets began demanding a premium to hold silver bonds indicating their belief that silver would depreciate in the future as more countries moved on gold

mean variance utility functions and the demand for risky assets an empirical analysis using flexible functional forms in a recent study levy and markowitz 15 demonstrate that at least for some utility functions expected utility can be approximated by a judiciously chosen function defined over mean and variance in addition to resurrecting mean variance analysis from the limbo into which it was placed by the criticisms of borch 10 and others the analysis by levy and markowitz yields a more direct approach to portfolio analysis than that provided by the current empirical literature the current portfolio literature is concerned with notions of efficient sets and systematic risk rather than with utility functions and mean variance while much has been gained from a utility free methodology it is ultimately predicated upon a separation theorem and hence an environment with zero transactions costs but security markets are not costless and the separation theorem may not hold in that event a utility dependent approach to portfolio analysis could potentially lead to more powerful results especially if such an approach could be empirically implemented

additional aspects of rational insurance purchasing the purchase of insurance provides an individual with the ability to shift risk associated with either timeless or temporal uncertain prospects see dreze and modigliani 1972 previous insurance decision analysis can be further divided into cases in which the insurance contract is exogenously specified see mossin 1968 smith 1968 and cases in which the optimal form of contract is to be determined see raviv 1979 brennan and solanki 1981 this note is concerned with extending some of the results for timeless uncertain prospects with the insurance contract exogenously specified many of the properties associated with the purchase of insurance for timeless uncertain prospects are analyzed by mossin 1968 for different forms of contracts see also gould 1969 utilizing the arrow pratt measure of absolute risk aversion the effect of wealth upon the optimal amount of insurance is determined for the different forms of contracts recent work by ross 1981 demonstrates that in situations where individuals face more than one timeless uncertain prospect and they can purchase insurance only for a subset of these prospects then a more risk averse individual in the arrow pratt this paper examines the use of the arrowpratt and ross measures of risk aversion it is shown that in situations where the individual faces more than one uncertain prospect and can purchase insurance only for a subset of these prospects then in many cases the arrow pratt and ross measures of risk aversion are not sufficient to describe the behavior of the individual in purchasing insurance

optimal insurance in incomplete markets this paper examines the theory of optimal insurance purchasing in the presence of uninsurable background risk existing theorems concerning the optimal level of insurance and the optimal form of an insurance contract are shown to hold only under restricted market and risk assumptions in particular conditions sufficient for the optimality of full coverage or sufficient for the optimality of deductible policies depend on the correlation between insurable and uninsurable risks these results may provide a partial explanation why existing theory is often contradicted by observable behavior

the incentive implications of incomplete insurance the multiplicative case abstract when states of nature are not completely verifiable and payments in a pareto efficient insurance scheme contribute multiplicatively to wealth the insured may be better off in the insured against event depending upon the behavior of relative risk aversion

the mispricing of u s treasury bonds a case study this article documents an apparent pricing anomaly involving 94 percent 30 year treasury bonds during the months of may and june 1986 during this period the price of the 94s rose sharply relative to the prices of other long term treasury bonds and created a potential arbitrage opportunity in addition owners of the 94 bonds were able to borrow at a zero interest rate bypledging their bonds detailed examination reveals that this relative pricing anomaly cannot be attributed to changes in the level or term structure of interest rates or to differences between the bonds with respect to liquidity taxation or duration

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

salomon brothers and the may 1991 treasury auction analysis of a market corner abstract in may 1991 the treasury sold 12 29 billion in two year notes through improper bidding salomon brothers gained control of at least 86 percent of the issue this study investigates the impact of salomon s attempted corner by examining the postauction price behaviour of the two year note based on a no arbitrage relation the results show that the two year note was substantially overpriced for approximately six weeks following the auction the typical mispricing during this period is estimated at 0 16 to 0 25 percent of par in dollar terms the aggregate misvaluation averaged 20 30 million and by controlling the supply of the issue salomon stood to gain substantially from the squeeze

the impact of centralization on pharmaceutical procurement prices the role of institutional quality and corruption abstractthe impact of centralization on pharmaceutical procurement prices the role of institutional quality and corruption regional studies this paper deals with the open issue regarding centralized versus decentralized public procurement strategy using a unique dataset on tender prices of selected drugs for hospital usage provided by a sample of 52 italian local health service providers aziende sanitarie locali asls between 2009 and 2012 the paper tests which procurement system centralized decentralized or hybrid performs better controlling for several covariates including measures of institutional quality and corruption it finds that centralized and hybrid procurers pay lower prices than decentralized units moreover the results show that in areas in which institutional quality is lower or corruption is higher the effect of centralization in terms of negotiating lower prices is much stronger with savings of up to 60 of the price paid by asls that procure independently

a reexamination of option values implicit in callable treasury bonds abstract longstaff 1992 and edleson fehr and mason 1993 examine option values implicit in callable treasury bonds and report a significant puzzle implied option values are frequently negative using an alternative approach we reexamine this issue and find that implied option values are generally positive and in contrast to previous studies instances of option values sufficiently negative to overcome the bid ask spread are rare we explain the findings in other studies by showing that the method used may lead to the appearance of a negative option value when the true value is positive

the demand for life insurance an application of the economics of uncertainty a comment objective function in this comment the demand for insurance equations are derived once again but this time the derivation will be direct without use of the taylor approximation it is demonstrated that campbell s approximate functions do not converge in the limit to the exact solutions for logarithmic utility functions for this class of utility functions campbell s approximate solution dictates nonoptimal holdings of life insurance for virtually all policies whose load factors are greater than zero the reason for this is that campbell s approximations contain utility derivatives only up to the second order as will be shown for the logarithmic utility function third and higher derivatives are significant the organization of this note is as follows first the optimal amount of insurance coverage i will be derived and compared with campbell s alternative ins second it is demonstrated that ins does not approximate i as the time horizon at becomes infinitely small i e as at 0 lim 1 ins third it is shown that at one point where the bequest and utility functions are identical and where insurance is sold with no load a 0 ins and i coincide fourth the optimal i and approximate ins life insurance coverage and their difference are calculated for some realistic parameter values finally a general result on approximations is given at the outset it is useful to reintroduce the problem notation and assumptions of campbell a wage earner of age x and retirement age r has present value of wage income from x to r rhx h and current marketable assets of w2 w at instant x he faces a lottery with probability 1 qat he survives at time x at and has wealth w h and utility function v and with probability qat he dies has wealth w and bequest utility function b the assumption is made that both the utility and the bequest functions are increasing and concave i e v 0

arbitrage and the expectations hypothesis this paper shows that all traditional forms of the expectations hypothesis can be consistent with the absence of arbitrage if markets are incomplete a key implication is that the validity of the expectations hypothesis is purely an empirical issue the expectations hypothesis cannot be ruled out on a priori theoretical grounds one of the oldest and best known models in finance is the expectations hypothesis of the term structure introduced by fisher 1896 more than a century ago the expectations hypothesis has become a standard framework for explaining how yields of different maturities are related and it provides an important empirical benchmark from a theoretical perspective however the expectations hypothesis is not generally viewed as a viable model of the term structure in particular cox ingersoll and ross 1981 show that the traditional expectations hypothesis is actually a set of mutually exclusive propositions and offer a proof that most forms of the expectations hypothesis admit arbitrage recently mcculloch 1993 and fisher and gilles 1998 present counterexamples to the cox et al proof showing that the traditional forms of the expectations hypothesis can be consistent with the absence of arbitrage they acknowledge however that their counterexamples are somewhat contrived and view them as economically implausible these results leave the impression that the expectations hypothesis is only consistent with the absence of arbitrage in pathological cases of little practical interest in this paper we argue that the expectations hypothesis is much more theoretically defensible than commonly believed an important point often overlooked is that the cox et al 1981 results are developed in an economic setting where bonds are redundant securities in the more realistic case where bond prices display security specific variation and there is mounting evidence of this traditional forms of the expectations hypothesis can hold quite generally without arbitrage only weak conditions guaranteeing the existence of an equivalent martingale measure need be satisfied for the various forms of the expectations hypothesis to hold without arbitrage a key

arbitrage bounds in markets with noisy prices and the puzzle of negative option prices implicit in bonds abstract the term structure of interest rates has occupied economists for many years this is testimony to the importance of the term structure or equivalently valuation operator and to the difficulty of obtaining reliable estimates of it until recently it was not possible to reconcile the theoretical existence of a multiplicity of valuation operators in an incomplete bond market and the empirical nonexistence of even a single one mackay and prisman estimating valuation operators in incomplete market with noises can noise complete the market working paper 1996 tackle this problem in this paper an amendment to and a generalization of their methodology is presented the amendment preserves the linearity of valuation operators and allows use of efficient linear programming techniques further it facilitates an admissible consideration of the puzzle of negative option prices embedded in bonds the empirical results presented in this paper were obtained using data on extendable government of canada bonds the results indicate that although the gap between the lowest and the highest prices assigned to a cash flow by different valuation operators is significant it is not sufficient to resolve the above mentioned puzzle

trader rationality in the exercise of futures options abstract we examine the rationality of investor exercise behavior by analyzing two years tendered exercise notices for treasury bond futures options we conclude that exercise behavior is generally rational but document numerous failures to exercise as well as some exercises that should not have occured both at and prior to expiration the most frequent type of error is failing to exercise suggesting that traders do not monitor their positions with sufficient care finally we show that investors use information arriving after trading closes but before exchange imposed exercise deadlines in forming their exercise decisions

tax policy the interest elasticity of saving and capital accumulation numerical analysis of theoretical models increasing disillusionment with traditional empirical methods is having a major impact on research methodology which is increasingly turning to simulation analysis based on theoretical models and assumed parameter values in research on saving and wealth accumulation there have been several recent studies consisting of simulation of theoretical models based on the life cycle model a particular focus has been tax policy and capital formation which is the area of concentration of this paper the aim is to analyze in a theoretical simulation context the impact on saving and wealth of an increase in the after tax rate of return to saving generated by a cut in the tax rate on income from capital this paper suggests that such simulation analysis while instructive as to the behavior of the class of models examined and as to the critical channels of influence does not yield a theoretical presumption in favor of cutting taxes on income from capital as a means of stimulating capital formation the development of this literature derives in part from disillusionment with traditional empirical methods many such papers begin by listing a litany of the problems involved in the usual type of empirical analysis before proceeding to simulation of theoretical structures the implicit conclusion at times appears to be that because of the daunting problems of standard empirical methodology the results derived from it can be ignored and that empirical magnitudes can perhaps be discovered by deductive means the temptation to think of the precise numerical results derived from theoretical simulation as empirical can be rather strong it needs to be reemphasized that empirical magnitudes can only be determined by empirical studies in section i the theoretical structure of a zero bequest life cycle model2 is outlined and several numerical simulations of this model are presented these simulations highlight interesting and nontrivial interactions of theoretical parameters and also demonstrate the difficulty involved in attempts to develop robust aggregate implications from such a framework for instance it is argued that summers claim to have developed a prima facie theoretical case for a high interest elasticity of savings 1981a p 537 does not stand up to sensitivity analysis a small change in the assumed rate of pure time preference or in other parametric assumptions generate otherwise plausible cases in which the interest elasticity of aggregate saving is low the experiments conducted in section i are partial equilibrium in the sense that the interest rate is changed exogenously which changes savings and hence the capital stock but the feedback effect of the capital international monetary fund this paper derives from chs 2 and 3 of my doctoral dissertation completed during a research fellowship at the brookings institution financial support was received from brookings and the social science research council i am grateful to henry aaron barry bosworth maxim engers irwin friend laurence kotlikoff franco modigliani joseph pechman duncan ripley robert shiller patricia stack and my supervisor albert ando for comments and guidance on earlier drafts none of the above institutions or individuals is responsible for the views expressed or any remaining errors for example see james tobin and walter dolde betsy white lawrence summers 1978 1981a b g moore alan auerbach and laurence kotlikoff and auerbach kotlikoff and j skinner 2it is popular to establish a sharp dichotomy between life cycle models and bequest models this taxonomy ignores the frequent references to the potential significance of bequests in the writings of the originators of the life cycle hypothesis a distinction between zero bequest life cycle models and life cycle models incorporating bequests is more accurate in terms of doctrinal history see for example albert ando and franco modigliani and modigliani and richard brumberg

the interdependence of individual portfolio decisions and the demand for insurance we analyze the individual s demand for insurance as a special case of general portfolio hedging activity the demand for insurance contracts is determined simultaneously with the demands for other assets in the portfolio we demonstrate that when the payoffs of the policy are correlated with the payoffs to the individual s other assets the demand for insurance contracts is generally not a separable portfolio decision we argue that this separability condition is not generally met because of significant interdependence of claims across different insurance policies furthermore our generalizations can reverse the standard prediction that wealthier individuals will demand less insurance

paper millionaires how valuable is stock to a stockholder who is restricted from selling it abstract many firms have stockholders who face severe restrictions on their ability to sell their shares and diversify the risk of their personal wealth we study the costs of these liquidity restrictions on stockholders using a continuous time portfolio choice framework these restrictions have major effects on the optimal investment and consumption strategies because of the need to hedge the illiquid stock position and smooth consumption in anticipation of the eventual lapse of the restrictions these results provide a number of important insights about the effects of illiquidity in financial markets

on the correspondence between multivariate risk aversion and risk aversion with state dependent preferences abstract this paper establishes the correspondence between multivariate risk aversion and risk aversion with state dependent preferences it shows that the prerequisite for comparability of risk aversion in the multivariate case namely identical ordinal preferences on the commodity space corresponds to identical properly defined reference sets in the case of state dependent preferences for comparable decision makers the condition that the utility function of one is a concave transformation of that of the other on the commodity space corresponds to the condition that the expected utility of one is a concave transformation of that of the other on the reference set

market manipulation price bubbles and a model of the u s treasury securities auction market this paper models the u s treasury securities auction market and demonstrates that mar ket manipulation can occur in a rational equilibrium it is a dynamic model with traders participating in a when issued market a treasury auction and a resale market manipu lations occur when dealers in the when issued market use their knowledge of the net order flow in order to corner the auction and squeeze the shorts from the when issued market this manipulation equilibrium generates bubbles in treasury security prices and specials in repo rates we also compare discriminatory and uniform price auction rules with respect to manipulation our analysis shows that manipulations can occur in long run equilibrium under discriminatory price auctions but not under uniform price auctions

portfolio claustrophobia asset pricing in markets with illiquid assets many classes of assets are illiquid or nonmarketable in that they cannot always be traded immediately thus a portfolio position in these becomes at least tem porarily irreversible we study the asset pricing implications of this type of illiquidity in an exchange economy with heterogeneous agents in this market one asset is always liquid the other asset can be traded initially but then not again until after a blackout period illiquidity has a dramatic effect agents abandon diversification and choose polarized portfolios instead the value of liquidity can represent a large portion of the equilibrium price of an asset jel g11 g12

portfolio turnpike theorems risk aversion and regularly varying utility functions models which incorporate both uncertainty and the dynamic behavior of economic agents are difficult to analyze 2 moreover even when a solution is obtained it can seldom be simply stated and rarely lends itself to straightforward interpretations an example of an appealingly understood result is a turnpike theorem which states that if the planning horizon is distant then the optimal policy can be approximated by a wealth independent policy our paper develops an analogous result in a stochastic intertemporal model of portfolio selection in fact we obtain necessary and some sufficient conditions for a turnpike the problem considered in this essay is that of an investor a von neumannmorgenstern expected utility maximizer who invests for a finite horizon and consumes only his terminal wealth at the beginning of the first period the investor allocates his wealth w among various assets and at the end of the first

special repo rates this article provides the causes and symptoms of special repo rates in a competitive market for repurchase agreements a repo rate is in effect an interest rate on loans collateralized by a specific instrument a special is a repo rate significantly below prevailing market riskless interest rates this article shows that specials can occur when those owning the collateral are inhibited whether from legal or institutional requirements or from frictional costs from supplying collateral into repurchase agreements specialness increases the equilibrium price for the underlying instrument by the present value of savings in borrowing costs associated with the repo specials this article characterizes competitive repurchase or repo markets and the equilibrium relationship between repo rates and the underlying cash market prices repurchase markets are often called financing markets since they are effectively vehicles for collateralized borrowing that are often used to finance the purchase of the underlying collateral this article provides causes and effects of specials meaning specific repo rates significantly below prevailing market interest rates for loans of similar maturity and credit risk the example of united states treasury instruments is emphasized because of the extensive use of the treasury repo market as a means of hedging against or speculating on changes in u s interest rates and because of the high incidence of specials in treasury repo rates numerous specific instru

the relative pricing of high yield debt the case of rjr nabisco holdings capital corporation the authors derive and investigate empirically arbitrage pricing restrictions among three bonds of rjr nabisco holdings capital corporation the three rjr bonds are virtually identical in all respects except for the form in which interest is paid the authors document large and persistent errors in the market pricing of the three bonds over a two year period the cash paying bond was consistently more expensive than either the pay in kind or deferred coupon bonds the magnitude of the pricing errors is too large to be explained by market imperfections copyright 1993 by american economic association

liquidity maturity and the yields on u s treasury securities the efrect8 of aaaet liquidity on expected retuma for ts with infinite maturities toc ka are eumined for bonda treuury notes and bills with matched maturities of lellll than 6 months the yield to maturity ill higher on notes which have lower liquidity the yield di1ferential between notes and billa is a decreuing and convex function of the time to maturity the results provide a robult confirmation of the liquidity effect in auet pricing this paper studies empirically the effects of the liquidity of capital assets on their prices amihud and mendelson 1986 1989 proposed that liquidity affects asset prices because investors require a compensation for bearing transaction costs transaction costs paid whenever the asset is traded form a sequence of cash outflows the discounted value of this cost stream proxies for the value 1088 due to illiquidity which lowers the asset s value for any given cash flow that the asset generates 1 as a result the return on assets should be an increasing function of their illiquidity other things equal for stocks the illiquidity effect is expected to be strong because their transaction cost sequence is infinite amihud and mendelson 1986 1989 demonstrated that common stocks with lower liquidity yielded significantly higher average returns after controlling for risk and for other factors these results on the importance of liquidity in the pricing of stocks raise additional questions i does the liquidity effect depend on the specific controls used by amihud and mendelson 1986 1989 1 ii does illiquidity have a similarly strong effect on the pricing of bonds whose maturities are finite and iii if liquidity affects bond yields how is this effect related to the bond s time to maturity

comparative risk aversion abstract even when some risk prospects have no certain equivalents increases in risk aversion are equivalent to concave transformations of the utility function strict or sharp increases in risk aversion correspond to concave and non linear or strictly concave transformations respectively

are negative option prices possible the callable u s treasury bond puzzle market prices for callable treasury bonds often imply negative values for the implicit call option the author considers a variety of possible explanations for these negative values including the treasury s track record in calling bonds optimally tax related effects tax timing options and bond liquidity none of these factors accounts for the negative values although the costs of short selling may explain why these apparent arbitrage opportunities persist over time why these implicit call values become negative in the first place remains a puzzle copyright 1992 by university of chicago press

the tips treasury bond puzzle we show that the price of a treasury bond and an inflation swapped treasury inflation protected securities tips issue exactly replicating the cash flows of the treasury bond can differ by more than 20 per 100 notional treasury bonds are almost always overvalued relative to tips total tips treasury mispricing has exceeded 56 billion representing nearly 8 of the total amount of tips outstanding we find direct evidence that the mispricing narrows as additional capital flows into the markets this provides strong support for the slow moving capital explanation of arbitrage persistence

negative nominal interest rates and the liquidity premium abstract this paper investigates the phenomenon whereby the most recently issued on the run us treasury bond is more heavily traded and thereby accrues a liquidity premium this premium is shown to be related to the time the asset will remain heavily traded and sufficient to cause negative forward nominal interest rates when compared with the prices of similar less liquid bonds

the relative pricing of u s treasury strips empirical evidence abstract we investigate pricing relations and the potential for arbitrage in the u s treasury strips market stressing the importance of reconciling quoted treasury data with actual market pricing conventions we document that stripping and reconstitution profits in the strips market are fleeting and rarely economically significant that matched maturity principal and coupon strips generally have different prices due at least in part to richness or cheapness in the underlying note or bond and that apparent negative forward rates in the strips market are concentrated in certain long maturity strips that do not actually exist at the time

the effect of government corruption on the efficiency of us commercial airports abstract in this paper we argue that the cost of providing public goods is affected by local government corruption because bureaucrats have no strong incentives to pursue mandated tasks under a corrupt environment commercial airports in the united states are chosen to demonstrate such impacts of corruption we first develop a theory which predicts the impacts of corruption on productivity and variable input allocation of airports we then test the predictions by estimating a stochastic variable cost frontier model which incorporates both technical and allocative efficiency of airports the empirical evidence confirms the theoretical predictions by revealing the following 1 airports are less productive in more corrupt environments and 2 airports tend to use more contracting out to replace in house labor in more corrupt environments the findings can be applied to the context of other public goods and have important policy implications for reforming governance structure of public good provision

a note on market efficiency institutional practice and economic constraints in the experience of the canadian bond market abstract for many years government of canada bonds with high coupons traded at much higher yields than those with lower coupons this apparent market inefficiency virtually disappeared over a short period of time during 1993 several events occurred in 1993 which relate to the narrowing of the spread this paper shows the earlier yield spread to be consistent with restrictions on the trading of strip bonds it also finds it difficult to defend the hypothesis that the higher yield spread represented unexploited profit opportunities

negative option values are possible the impact of treasury bond futures on the cash u s treasury market abstract this paper uses a unique financial instrument in the u s treasury market to study the price behavior of the put option embedded in the november 2009 14 callable u s treasury bond we find that beginning in august 1993 the estimated option value was persistently negative on nearly every day for the ensuing eight months we show that the anomalous pricing behavior arose because the underlying callable bond became the cheapest to deliver issue against u s treasury bond futures contracts hence this paper provides direct evidence that derivative assets can significantly distort pricing in the primary asset market

is corruption an efficient grease this paper tests whether corruption may be an efficient grease in the wheels of an otherwise deficient institutional framework it analyzes the interaction between aggregate efficiency corruption and other dimensions of governance for a panel of 69 countries both developed and developing using two measures of corruption and two other aspects of governance we observe that corruption is less detrimental to efficiency in countries where institutions are less effective it may even be positively associated with efficiency in countries where institutions are extremely ineffective we thus find evidence for the grease the wheels hypothesis in its weak and strong forms

approximate aggregation under uncertainty abstract for a collection of agents with von neumann morgenstern preferences a price independent income distribution and identical probability beliefs there exists a von neumann morgenstern approximate aggregator the risk tolerance of the approximate aggregator is equal to the sum of the individual agent risk tolerances at prices which yield constant risk free contingent consumption the application of the approximate aggregator to standard asset pricing models in finance is discussed briefly

evaluation of callable bonds finite difference methods stability and accuracy the purpose of this paper is to evaluate numerically the semi american callable bond by means of finite difference methods this study implies three results first the numerical error is greater for the callable bond price than for the straight bond price and too large for real applications secondly the numerical accuracy of the callable bond price computed for the relevant range of interest rates depends entirely on the finite difference scheme which is chosen for the boundary points thirdly the boundary scheme which yields the smallest numerical error with respect to the straight bond does not perform best with respect to the callable bond the callable bond is a straight coupon bond with the provision that allows the debtor to buy back or to call the bond for a specified amount the call price plus the accrued interest since the last coupon date at some time the call date s during the life of the bond three types of callable bonds can be observed in financial markets the american callable bond may be repurchased at any time on or before the final redemption day in contrast to the european or semi american counterparts which may only be called at one or several specific dates respectively in the case of semi american bonds the debtor gives the bondholder two months notice the callable bond can be viewed as a compound security which consists of an otherwise identical straight bond and of an embedded call option which is not traded and the price of which is therefore not observable the embedded call option which is written on the underlying straight bond can be viewed as being sold by the initial

the optimal deductible for an insurance policy when initial wealth is random individual wealth typically includes risky assets often some of these risks are insurable but other risks such as market valuation of stocks inflation and other general economic conditions are usually not insurable a series of recent papers by kihlstrom romer and williams 1981 ross 1981 nachman 1982 and pratt 1982 have shown that the introduction of background risk requires stronger definitions of risk aversion we will use some of these results to examine the choice of the optimal deductible in an insurance contract when initial wealth is random an examination of insurance purchases within a broader portfolio is considered by doherty 1981 and by mayers and smith 1983 these papers use a mean variance framework to examine the separability of the insurance decision in general portfolio relationships have nontrivial implications for insurance buying strategies in particular correlation between insurable and noninsurable risk may affect the optimal level of insurance coverage deductible insurance is considered mainly because of its widespread use by many insurers furthermore deductibles the literature concerning the choice of optimal deductibles for insurance policies assumes that wealth is nonstochastic except for the value being insured however a decision maker s asset portfolio might easily contain other sources of risk some of which might be uninsurable this paper examines the choice of a deductible insurance contract in the presence of uninsurable background risk existing theorems concerning the optimality of full coverage are shown to hold only under restricted conditions concerning the correlation of insurable risk with other risky assets more general propositions are established and the effects of risk aversion are considered

relative risk aversion around the world abstract in this letter the hypothesis of constant relative risk aversion is examined for 15 countries using property liability insurance data for more than half the cases it is shown that crra can not be rejected following that the degree of relative risk aversion is estimated and found to usually lie between one and two

eight questions about corruption this paper will discuss eight frequently asked questions about public corruption 1 what is corruption 2 which countries are the most corrupt 3 what are the common characteristics of countries with high corruption 4 what is the magnitude of corruption 5 do higher wages for bureaucrats reduce corruption 6 can competition reduce corruption 7 why have there been so few recent successful attempts to fight corruption 8 does corruption adversely affect growth

volume volatility and the dispersion of beliefs i examine a two period noisy rational expectations model of a futures market and show that the dispersion of expectations about a weighted average of future prices measures both the additional volatility and the additional expected volume of trade associated with noisy information the role played by dispersion helps clarify several stylized facts concerning volume and price behavior specifically dispersion can be a factor contributing to the positive correlation between volume and absolute price changes and the positive correlation between consecutive absolute price changes article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

strategic trading behavior and price distortion in a manipulated market anatomy of a squeeze abstract this paper investigates an attempted delivery squeeze in a bond futures contract traded in london using cash and futures trades of dealers and customers we analyze their strategic trading behavior price distortion and learning in a market manipulation setting we argue that marked differences in settlement failure penalties in the cash and futures markets create conditions that favor squeezes we recommend that regulators require special flagging of forward term repurchase agreements on the key deliverables that span futures contract maturity dates and that exchanges mark to market their contract specifications more frequently or consider a cash settled contract on a basket of bonds

tax induced clientele effects in the market for british government securities abstract this paper develops a new methods for measuring tax effects in bond markets and presents empirical results for british government securities the basic idea is to construct a least cost portfolio which for investors in a given tax bracket dominates a given bond a portfolio is said to dominate a bond if it provides cash flows which are at least as great in every period and has a lower price in effect our method calculates an upper bound on the value of a bond to investors in a given tax bracket the results demonstrate i the existence of clientele effects and ii the absence of an effective tax rate

the design of an optimal insurance policy almost every phase of economic behavior is affected by uncertainty the economic system has adapted to uncertainty by developing methods that facilitate the reallocation of risk among individuals and firms the most apparent and familiar form for shifting risks is the ordinary insurance policy previous insurance decision analyses can be divided into those in which the insurance policy was exogenously specified see john gould jan mossin and vernon smith and those in which it was not see karl borch 1960 and kenneth arrow 1971 1973 in this paper the pioneering work of borch and arrow the derivation of the optimal insurance contract form from the model is synthesized and extended

risk sensitivity in bargaining with more than two participants abstract in two person bargaining over riskless outcomes where the outcome is chosen according to the nash solution or the kalai smorodinsky solution an increase in a player s risk aversion is to the advantage of the opponent it is shown in this note that for the n person nash solution an increase in risk aversion is to the player s own disadvantage but needs not be advantageous to all the opponents for the n person kalai smorodinsky solution the increase is to the player s own disadvantage and to the advantage of all the opponents

liquidity reconstitution and the value of u s treasury strips an apparent pricing anomaly exists in the market for u s treasury strips zerocoupon strips created from principal payments typically trade at significantly higher prices than otherwise identical zero coupon strips created from coupon payments in addition to documenting this phenomenon this study demonstrates that differences in liquidity and differences in reconstitution characteristics explain much of this price variation u s treasury strips are zero coupon bonds created from either the principal or individual coupons of u s treasury bonds if the maturity date and face value are identical the cash flows for a strip derived from a principal payment are identical to the cash flows for a strip derived from a coupon payment however the two instruments almost always trade at significantly different prices for a recent sample 5 31 91 the mean percentage difference in price is greater than 1 2 with some differences greater than 2 7 this is an apparent anomaly since securities with identical cash flows should trade at the same price although coupon strips and principal strips have identical cash flows at maturity closer inspection reveals two differences the two instruments have different degrees of liquidity and different reconstitution characteristics previous studies have documented the effect of liquidity on prices in other markets amihud and mendelson 1986 1989 find that common stocks with differences in liquidity have significantly different risk adjusted rates of return silber 1991 studies restricted stock offerings and documents substantial price discounts on these illiquid securities vis a vis identical stocks that trade in the open market 1 in a study of u s treasury bills and treasury bonds with remaining maturities of less than six months amihud and mendelson 1991 find that differences in liquidity contribute to differences in prices between matched pairs of bills and bonds of the same

price informativeness and predictability how liquidity can help information asymmetry and liquidity concentration has been widely discussed in literatures this study shows how liquidity influences not only forecasting performances of term structure estimation but also information transmission and price adjustment across markets our analysis helps understanding how extreme market movements affect one another this study examines and provides a rationale for incorporating liquidity in estimating term structure forecasting performance can be greatly enhanced when conditioning on trading liquidity it reduces information asymmetry in the sense of easley and o hara 2004 and burlacu et al 2007 we adopt a time series forecasting model following diebold and li 2006 to compare behaviour of forecasted price errors our findings indicate that forecasted price errors in markets with less depth would influence those with more information asymmetry induces volatile trading first and then price adjustment is transmitted to another market due to insufficient market dep

a global stock and bond model six fundamental risk factors four for stocks and two for bonds explain most of the common volatility of individual stocks and bonds worldwide some of the risk factors have a strong international component and others are more purely national the cross national component of the risk factors tends to be stronger within the european union than worldwide the model proposed in this article can be used for integration of worldwide asset selection and asset allocation decisions

how does liquidity affect government bond yields the paper explores the determinants of yield differentials between sovereign bonds using euro area data there is a common trend in yield differentials which is correlated with a measure of aggregate risk in contrast liquidity differentials display sizeable heterogeneity and no common factor we propose a simple model with endogenous liquidity demand where a bond s liquidity premium depends both on its transaction cost and on investment opportunities the model predicts that yield differentials should increase in both liquidity and risk with an interaction term of the opposite sign testing these predictions on daily data we find that the aggregate risk factor is consistently priced liquidity differentials are priced for a subset of countries and their interaction with the risk factor is in line with the model s prediction and crucial to detect their effect

the pareto principle of optimal inequality the pareto principle is often viewed as a mild requirement compatible with a variety of value judgements in particular it is generally thought that it can accommodate different views on the desirable degree of equality we show that this is generally not true in intertemporal models where some uncertainty prevails to do so we formalize the concept of inequality aversion we show that different degrees of inequality aversion are not possible in typical models of time consistent dynamic decision under uncertainty

bidder behavior in multiunit auctions evidence from swedish treasury auctions we analyze a unique data set on multiunit auctions which contains the actual demand schedules of the bidders as well as the auction awards in over 400 swedish treasury auctions first we document that bidders vary their prices bid dispersion and the quantity demanded in response to increased uncertainty at the time of bidding second we find that bid shading can be explained by a winner s curse driven model in which each bidder submits only one bid despite the fact that the bidders in our data set use much richer bidding strategies third we explore the extent to which the received theories of multiunit auctions are able to offer insights into the bidder behavior we observe our empirical evidence is consistent with some of the predictions of the models of auctions that emphasize private information the winner s curse and the champion s plague while the models of multiunit auctions serve as useful guideposts our empirical findings also point to several new areas of research in multiunit auctions

the decline in idiosyncratic values of us treasury securities abstract unique features and market frictions can lead to idiosyncratic pricing for some us treasury securities this study uses a linear programming lp model to measure aggregate idiosyncratic pricing of t notes and t bonds from 1980 to 2016 we document an average idiosyncratic pricing of 0 11 per 100 par as compared to an average bid ask spread of 0 08 further idiosyncratic pricing declined dramatically from the early 1980s to the 2010s empirical evidence suggests that the 1986 tax reform act increasing issue sizes and improving market liquidity contribute to the decline at the individual security level we identify factors contributing to and mitigating idiosyncratic pricing

constant absolute risk aversion preferences and constant equilibrium interest rates this paper constructs a general equilibrium model with endogenous stochastic production and establishes that the equilibrium interest rate can be constant in a closed production economy when the preferences are represented by constant absolute risk aversion utility functions the results in this paper and their limitations are compared and contrasted with related contributions in the financial economics literature in this paper an intertemporal allocation problem with endogenous stochastic production is solved for consumption function and the interest rate preferences are assumed to be of constant absolute risk aversion type there are a number of stochastic constant returns to scale production techniques with independently and identically distributed shocks it is shown that the wealth dynamics of agent can be then approximated by a square root diffusion process which is a special case of constant elasticity of variance diffusion with this as the starting point the consumption function and interest rates are derived and discussed at equilibrium the interest rate is shown to be a constant and consumption is shown to be drawn from a distribution which belongs to the constant elasticity of variance diffusion class restrictions are placed on the form of the problem so that results make economic sense the assumption of a constant interest rate has been made frequently in the asset pricing literature we provide a plausible equilibrium model in which this assumption is valid the findings are compared with those of bhattacharya 1 constantinides 2 rubinstein 8 and stapleton and subrahmanyam 10 in subsequent sections this paper is organized as follows in the next section the characteristics of the economy are described section ii develops the dynamic optimization problem facing the consumer in the economy in section iii the optimal consumption function is derived and discussed section iv contains a result on the equilibrium interest rate in this section it is shown that the equilibrium interest rate is a constant and its properties are analyzed in section v a discussion of the results is provided

a reexamination of the value of tax options this article reexamines the value of tax trading when the tax rate on long term realizations is less than that on short term realizations in particular the value of the option to realize long term capital gains and repurchase stock in order to increase one s tax basis and restart the option to realizefuture losses short term is examined empirically our estimate of the incremental value of restarting which is based on the results of simulations of several alternative tax trading policies over a large number of independent return sequences is generally much smaller than that reported by constantinides 1984 the incremental value of restarting is shown to depend critically on the particular pattern of realized returns and the assumed tax treatment of unrealized capital gains at the end of the simulation period the effects of stockprice volatility transaction costs portfolio offset rules and realization cutoff levels on the value of tax trading are also investigated

the on the run liquidity phenomenon abstract we test the implications of a model of multi asset speculative trading in which liquidity differentials between on the run and off the run u s treasury bonds ensue from endowment shocks in the presence of two realistic market frictions information heterogeneity and imperfect competition among informed traders and a public signal our evidence suggests that i off on the run liquidity differentials are economically and statistically significant even after controlling for several of the bonds intrinsic characteristics such as duration convexity repo rates or term premiums and ii off on the run liquidity differentials are smaller immediately following bond auction dates and larger when the uncertainty surrounding the ensuing auction allocations is high when the dispersion of beliefs across informed traders is high and when macroeconomic announcements are noisy consistent with our model

the cost of corruption in the italian solid waste industry the article investigates the link between corruption and efficiency using a rich micro level data set on solid waste collection activities in 529 italian municipalities observed over the years 2004 2006 to test the impact of corruption on cost efficiency we estimate a latent class stochastic frontier model accounting for technological heterogeneity across units the results of our estimates show that corruption significantly increases inefficiency a finding that is robust to the inclusion of alternative local corruption indicators and other control variables such as geographical demographic and political factors finally we find that the impact of corruption tends to be greater in the southern regions of the country and in those municipalities that are less involved in recycling activities

special repo rates an empirical analysis duffie 1996 examines the theoretical impact of repo specials on the prices of treasury securities and concludes that all else the same an issue on special will carry a higher price than an otherwise identical issue we examine this hypothesis and find strong evidence in support of it we also examine whether the liquidity premium associated with on the run issues is due to repo specialness and find evidence of a distinct effect finally we investigate whether auction tightness and percentage awarded to dealers are related to subsequent specialness and find that both variables are generally significant underlying the cash market for u s treasury securities is the financing or repo market at any given time the repo rate for most treasury issues the general collateral rate is the same but a few issues are typically on special an issue on special has associated with it a repo rate that is less than the prevailing general collateral rate as a result the owner of a security that is on special is able to obtain below market financing rates via a repurchase agreement duffie 1996 examines the theoretical causes of repo specials and their impact on the prices of treasury securities in the context of a general equilibrium model his primary conclusion is that specialness will be priced in the cash market meaning that all else the same an issue on special or likely to go on special will carry a higher price than an otherwise identical issue we investigate this hypothesis using data on repo specials and find clear evidence in support of it we conclude that specialness is priced and that the magnitude of the cash market premium reflects both the future duration and magnitude of repo specialness we also examine whether the liquidity premium associated with on therun issues is due to repo specialness and find evidence of a distinct effect finally as a test of duffie s model we investigate whether auction tightness and percentage awarded to nonbank primary dealers are related to subsequent specialness the evidence is consistent with predictions with both variables generally significant

the self regulation of commodity exchanges the case of market manipulation influential economists argue that government regulation of manipulative practices in financial markets is unnecessary because exchanges have incentives to take nearly first best precautions against the exercise of market power this article shows that the theoretical arguments underlying this proposition are weak because exchange members are likely to ignore the effects of manipulation on inframarginal traders and price informativeness competition between exchanges may be limited and collective action problems preclude efficient exchange intervention for these reasons exchanges will likely take few precautions against market power an examination of the history of self regulation at 10 exchanges prior to the passage of laws proscribing manipulation shows that they took few if any measures to curb manipulation since the characteristics of manipulation imply that it can be deterred efficiently through the use of harm based sanctions this theory and evidence strongly suggest that self regulation is a

corruption and inefficiency theory and evidence from electric utilities we investigate the determinants of the efficiency of firms with a focus on the role of corruption we construct a simple theoretical model where corruption increases factor requirements of firms because it diverts managerial effort away from factor coordination we then exploit a unique dataset comprising firm level information on 80 electricity distribution firms from 13 latin american countries for the years 1994 to 2001 as predicted by the model we find that more corruption in the country is strongly associated with more inefficient firms in the sense that they employ more inputs to produce a given level of output the economic magnitude of the effects is large the results hold both in models with country and firm fixed effects the results survive several robustness checks including different measures of output and efficiency and instrumenting for corruption other elements associated with inefficiency are public ownership inflation and lack of law and order but corruption appears to play a separate and more robust role

some stronger measures of risk aversion in the small and the large with applications the arrow pratt measures of risk aversion for von neumann morgenstern utility functions have become workhorses for analyzing problems in the microeconomics of uncertainty they have been used to characterize the qualitative properties of demand in insurance and asset markets to examine the properties of risk taking in taxation models and to study the interaction between risk and life cycle savings problems to name just a few applications equally importantly they have generated the linear risk tolerance class of utility functions which has provided canonical examples in such diverse areas as portfolio theory and the theory of teams despite these successes there have been a number of areas for which the results have been weaker than hoped it is natural to use the risk aversion measures to compare the behavior of individuals in risky choice situations for example consider the individual portfolio choice problem in a two asset world with a riskless asset and a risky asset if individual a has a uniformly higher arrow pratt coefficient of risk aversion than individual b then b will always choose a portfolio combination with more wealth invested in the risky asset but suppose that both assets are risky now there is no obvious sense in which the more risk averse individual can be said to hold a less risky portfolio but it seems strange that such a simple alteration should destroy the analytics which support the basic intuition similarly consider the basic insurance problem if one individual a is more risk averse than another b in the arrow pratt sense it follows that a will pay a larger premium to insure against a random loss than will b typically though an individual evaluates partial rather than total insurance that is only some gambles can be insured against and others must be retained in this case even when the gambles which are retained are independent from those which are insured it is no longer true that the individual whose arrow pratt measure of risk aversion is higher will pay a larger insurance premium the situation is no better when we consider comparative statics exercises for a single individual decreasing absolute risk aversion in the sense of arrow and

relative risk aversion revisited through cross sectional analysis of the asset holdings of individual households this study adds to the evidence available on relative risk aversion it utilizes the national longitudinal surveys nls 1 which have advantages over the data bases used in previous studies assumptions about relative risk aversion are made in a number of theoretical economic and financial models 2 an empirical study by cohn lewellen lease and schlarbaum clls 1975 concluded that relative risk aversion declined as wealth increased across households while a second empirical study by friend and blume f b 1975 concluded from mixed evidence that relative risk aversion remained relatively constant as wealth increased the present study finds that by restricting the sample to higher wealth households and by defining wealth narrowly patterns consistent with decreasing or constant relative risk aversion emerge and these are compatible with the earlier studies however the use of a broader based sample and a more comprehensive measurement of wealth alters the conclusions and a pattern indicative of increasing relative risk aversion emerges thus the paper cautions that constant or decreasing relative risk aversion assumptions in theoretic models may not be realistic descriptions of the risk attitudes of typical u s households first the literature on relative risk aversion will be reviewed second the model used to estimate the coefficient of relative risk aversion will be discussed the third section will present empirical results and contrast them with those of earlier studies finally the material will be summarized and the conclusions indicated

using micro surveys to measure and explain corruption summary this paper discusses survey techniques aimed at a better measurement of corruption at the micro level and argues that with appropriate survey methods and interview techniques it is possible to collect quantitative micro level data on corruption public expenditure tracking surveys service provider surveys and enterprise surveys are highlighted with several applications these surveys permit measurement of corruption at the level of individual agents such as schools health clinics or firms they also permit the study of mechanisms responsible for corruption including capture of public funds and bribery 2005 elsevier ltd all rights reserved

the valuation of options on coupon bonds abstract we derive simple closed form expressions for european options on coupon bonds using the general equilibrium term structure framework of cox ingersoll and ross the properties of these options are very different from those implied by the black scholes model for example bond call and put values can move in the same direction as the value of the underlying bond changes this has important implications for hedging interest rate risk with bond options furthermore bond option values can be decreasing functions of interest rate volatility as well as their time to expiration we also examine the properties of american bond options

discriminatory versus uniform treasury auctions evidence from when issued transactions abstract we use when issued transactions data to assess the treasury s current experiment with uniform auctions when issued volume is higher under uniform as compared to discriminatory auctions suggesting a higher information release which should reduce pre auction uncertainty and the winner s curse under uniform auctions when issued volatility falls after the auction and again after the outcome announcement the pattern is the opposite for discriminatory auctions this is further evidence that uniform auctions increase pre auction information and lower the short squeeze a direct comparison of markups in uniform and discriminatory auctions yields mixed results

a note on the generalised measures of risk aversion abstract this paper is concerned with generalised scalar measures of risk aversion a measure r which may meaningfully be applied to both unidimensional risks risk in income or wealth and multidimensional risks has been constructed in case of identical preferences we have also constructed an alternative measure of risk aversion r which is shown to be related to the khilstrom mirman measure this relationship explains the nature of the khilstrom mirman measure

governance and growth a simple hypothesis explaining cross country differences in productivity growth cross country evidence shows that a subset of developing countries isgrowing very rapidly taking advantage of opportunities to catch up atthe same time that other developing countries are growing slowly we arguethat this is due to differences in the quality of governance inparticular we show that productivity growth is higher in better governedcountries

arbitrage pricing transaction costs and taxation of capital gains abstract this paper examines one of the few cases of seemingly redundant securities sets of three government bonds with the same maturity date within the bounds on relative bond prices established by tax exempt investors in a market with proportional transaction costs the taxation of capital gains on the basis of realization has a significant impact on relative prices the empirical evidence supports the tax option effect discussed by constantinides and ingersoll but does not generally support the segmented tax clientele equilibrium discussed by schaefer

the optimal insurance contract in a competitive market abstract the author reviews some earlier work on optimal insurance contracts by arrow and mossin he then shows that some results in this work carry over to any premium system which satisfies the additivity condition inherent in a competitive market

manipulation of the commodity futures market delivery process an analysis of the futures market delivery end game specifies necessary and sufficient conditions for long and short traders to manipulate futures prices at contract expiration the empirical and welfare implications of manipulation are derived as well manipulation is most likely to occur in markets where economic frictions such as transportation and transactions costs make it inefficient to return excessive deliveries to their original owners these consumption distortions induce price changes that favor manipulators manipulation may also occur in markets where such costs are unimportant but the necessary conditions for the manipulation of a frictionless market are very restrictive copyright 1993 by university of chicago press

explaining differences in productive efficiency an application to belgian municipalities the purpose of this paper is to measure and explain variations in productive efficiency of municipal governments in belgium technical efficiency is evaluated using a non parametric method based on the free disposal hull fdh reference technology we first calculate input output and graph farrell efficiency measures for a cross section of all 589 belgian municipalities in a second stage of the analysis we explain the calculated differences in efficiency in terms of variables related to the structural characteristics of municipalities and to the institutional environment

the case of the negative nominal interest rates new estimates of the term structure of interest rates during the great depression throughout the 1930s and early 1940s u s treasury bonds and notes appeared to have negative nominal yields as they approached maturity but negative nominal interest rates are impossible in a world in which one can always hold cash the resolution to this puzzle is that treasury securities in addition to making coupon payments gave the owner the right to buy a new security on a future date this paper describes the institutional environment that led to the apparent negative nominal interest rates develops a method for valuing the exchange privilege and computes accurate measures of the yield to the coupon bearing component of these composite bond options these corrected bond and not yields are then used to calculate new estimates of the term structure of interest rates from 1929 to 1949

the recovery of risk preferences from actual choices since its introduction the expected utility hypothesis has been widely used in the construction of economic models more recently attention has focused on the conditions under which it is possible in principle to recover individual investors risk preferences from their demand for assets dybvig and polemarchakis 2 this paper represents a first attempt to recover preferences operationally from data on the actual demand for assets numerous difficulties are encountered in attempting to measure preferences toward risk in a real world setting preferences are revealed through the choices of an individual but in an uncertain world these choices also depend on his expectations of future events hence an immediate problem arises in separating the influences of each on such decisions problems can also arise in measuring other variables such as wealth which influence choices because of these difficulties efforts to classify and measure an individual s risk preferences have been confined to direct assessments in hypothetical environments e g kahneman and tversky 4 and keeney and raiffa 5 pp 203 212 2 in these studies the authors assumed that stated preferences are accurate indicators of actual behavior the question remains however whether individuals actually behave in the way their assessments predict the purpose of this note is to make some progress in answering this question in it an experiment is described which infers an individual s risk preferences from his actual choices in a real world environment specifically the risk aversion of a dealer in u s government securities is assessed directly and then estimated statistically from his actual demand for bills in the weekly treasury auctions the distribution of returns used in the analysis are calculated from the forecasts made by the dealer himself in addition to introducing new procedures for measuring preferences this study provides insights into the reliability of direct assessments in predicting the actual behavior

what drives private saving around the world the authors investigate the policy and non policy factors behind saving disparities using a large panel data set and an encompassing approach including several relevant determinants of private saving they extend the literature in several dimensions by 1 using the largest data set on aggregate saving assembled to date 2 using panel instrumental variable techniques to correct for endogeneity and heterogeneity 3 performing robustness checks on changes in estimation procedures data samples and model specification their main empirical findings a private saving rates show considerable inertia are highly serially correlated even after controlling for other relevant factors b private sector rates rise with the level and growth rate of real per capita income so policies that spur development are in indirect but effective way to raise private saving rates c predictions of the life cycle hypothesis are supported in that dependency ratios generally have a negative effect on private saving rates d the precautionary motive for saving is supported by the finding that inflation conventionally taken as a summary measure of macroeconomic volatility has a positive impact on private saving holding other facts constant e fiscal policy is a moderately effective tool for raising national saving f the direct effect of financial liberalization are largely detrimental to private saving rates greater availability of credit reduces the private saving rate financial depth and higher real interest rates do not increase saving

financial innovation and the role of derivative securities an empirical analysis of the treasury strips program the role that financial innovation plays in financial markets is very controversial to provide insight into this role we examine how market participants use the highly successful treasury strips program we find that investors use the option to create treasury derivative strips primarily to make markets more complete and take advantage of tax and accounting asymmetries although liquidity related factors help explain differences in the prices of treasury bonds and strips we find little evidence that the option to strip and reconstitute securities is used for speculative or arbitrage related purposes the role of financial innovation is a central issue for both policymakers and researchers in finance 1 critics argue that financial innovations often have no economic role beyond allowing some investors to take highly leveraged speculative or arbitrage related positions in contrast advocates argue that the introduction of new products makes financial markets more complete reduces frictions and transaction costs and leads to a more optimal allocation of risk in the economy to better understand the role played by financial innovation this paper examines how investors use the successful separate trading of registered interest and principal of securities strips program of the u s treasury this program allows investors to strip treasury notes and bonds to create separate discount bonds and to reconstitute previously stripped notes and