tax clienteles and optimal capital structure under uncertainty this article demonstrates that investors heterogeneous tax status implies that they value bonds differently at the margin due to asymmetric personal taxes high risk bonds generate a higher amount of taxable income than low risk bonds and are therefore held by investors in low tax brackets in such a setting firms can increase their value by choosing a capital structure that attracts a particular bondholder clientele the author analyzes how bondholder clienteles change as the uncertainty about a bond s final payoff is resolved over time and shows how tax clientele effects influence firms capital structure decisions copyright 1990 by the university of chicago

the economics of iron deficiency abstract this paper examines the evidence for a causal relationship between iron deficiency and a variety of functional consequences with economic implications motor and mental impairment in children and low work productivity in adults to the extent that we can be confident that iron deficiency does cause a consequence with economic implications this effect is quantified in economic terms illustrative calculations for 10 developing countries suggest that the median value of annual physical productivity losses due to iron deficiency is around 2 32 per capita or 0 57 of gdp median total losses physical and cognitive combined are 16 78 per capita 4 05 of gdp using a cost of 1 33 per case of anemia prevented from one of the few effectiveness studies of national fortification allows us to calculate the benefit cost ratio for long term iron fortification programs the median value is 6 1 for the 10 countries examined and rises to 36 1 including the discounted future benefits attributable to cognitive improvements this paper improves on previous work by including a much more thorough survey of the quantitative magnitudes involved and by incorporating effects of iron deficiency on cognition however more research is needed to verify the accuracy of the assumptions needed for this type of analysis

multivariate measures of well being and an analysis of inequality in the michigan data we demonstrate a multidimensional approach for combining several indicators of well being including the traditional money income indicators this methodology avoids the difficult and much criticized task of computing imputed incomes for such indicators as net worth and schooling inequality in the proposed composite measures is computed using relative inequality indexes that permit simple analysis of both the contribution of each welfare indicator and its factor components and within and between components of total inequality when the population is grouped by income levels age gender or any other criteria the analysis is performed on u s data using the michigan survey of income dynamics

poverty comparisons over time and across countries in africa abstract we use demographic and health surveys dhs to compare poverty at two or more points in time within and between african countries our welfare measure is an index resulting from a factor analysis of various household characteristics durables and household heads education an advantage of this measure is that for intertemporal and intraregional comparisons we need not rely on suspect price deflators and currency conversion factors the wide availability and similarity of questionnaires of the dhs facilitate comparisons over both time and countries our results generally show declines in poverty during the previous decade largely due to improvements in rural areas

the impact of inflation on the aggregate debt asset ratio this paper demonstrates that contrary to the results of previous studies the impact of inflation on the aggregate debt asset ratio cannot be determined theoretically however it is shown that inflation is likely to increase this ratio when personal income tax schedules are indexed to the price level and or when leverage related costs are relatively high and the personal tax rate on income from holding common stocks is relatively low studies concerning the effect of inflation on firms capital structure conclude that inflation enhances debt financing jaffe 9 modigliani and cohn 16 and modigliani 15 argue that nominal interest payments consist in part of true interest payments and in part of a compensation for the reduction in the real value of the principal the fact that firms are allowed to deduct their entire interest expense including the portion that is a return of principal reduces their cost of debt capital gordon 6 concludes that the equilibrium debt capital ratio rises when the inflation rate rises he argues that an increase in the nominal interest rate induced by inflation increases the tax advantage of debt financing thus debt financing becomes more attractive and a rise in leverage related costs is necessary to restore equilibrium gordon asserts that the increase in leveragerelated costs is brought about by an increase in the debt equity ratio all these studies however focus primarily on the tax benefits of debt financing to the corporation and implicitly assume that each firm has a unique optimal structure which may change with inflation in contrast miller 14 in a world without inflation concludes that firms are indifferent to their capital structure and that the aggregate debt equity ratio is determined by the ratio of the wealth of investors who for tax reasons choose to hold bonds to the wealth of those who choose to hold stocks this paper explicitly incorporates tax considerations of both investors and firms into the analysis of the effect of inflation on the aggregate corporate debtasset ratio it is demonstrated that the effect of inflation on the aggregate debtasset ratio cannot be determined theoretically however inflation is likely to increase this ratio when personal income tax schedules are indexed to the price level and or when leverage related costs are relatively high and the tax on income from holding common stocks is relatively low we consider an economy in which investors are subject to a progressive tax system income from corporate bonds

preferred habitat taxable tax exempt yield spreads and cycles in property liability insurance several theories seek to explain the spread between the yields on taxable and tax exempt bonds of comparable maturity this paper reconsiders the market segmentation theory by focusing on property and liability insurance companies plics plics can provide evidence on the market segmentation theory both because they are major participants in the market for longer term tax exempt bonds and because of their industry s pronounced profit cycle which causes wide variations in plics need fortax shields if investors have preferred habitats as per the market segmentation theory their preferences should cause plics purchases and sales of tax exempts to have different impacts on taxable tax exempts yield spreads at different maturities this paper finds strong evidence of market segmentation during the 1972 84 period when the industry experienced two extremely pronounced cycles and weaker evidence of market segmentation during the 1959 71 and 1985 89 periods copyright 1992 by ohio state university press

did steve forbes scare the us municipal bond market abstract this paper investigates the relationship of the daily spread between taxable and municipal securities to a daily indicator of the likelihood of a tax reform that would eliminate the preference now accorded to municipal securities the flat tax the probability of tax reform is proxied by the market price of the shares of steve forbes a champion of the flat tax in the iowa electronic market we find evidence that the indicator of tax reform s prospects was correlated with a decline in the spread on five and ten year maturity bonds although not for 30 year maturity bonds the correlations do not however survive in first difference form suggesting either that forbes prospects did not immediately affect expectations of future tax policy that the correlations are coincidental rather than causal or that the decreased signal to noise ratio obscures a real but small causal relationship

the trend and the measurement of world inequality over extended periods of accounting abstract the principal result of this paper is the demonstration of a method for measuring an index of e g nominal gnp over extended periods of time and the inequality thereof snap shot inequality for specific points in 1964 1972 and 1980 is also reported and decomposed for six subgroups in 122 countries

an empirical reconciliation of the miller model and the generalized capital structure models abstract this paper uses time series techniques to demonstrate the compatibility of miller s capital structure model miller m h 1977 journal of finance 32 261 276 with generalized capital structure models from 1970 through 1985 the miller model represents a long run equilibrium because deviations from the miller equilibrium revert toward a mean close to zero while transitory shocks to the leverage related costs of debt and bank borrowing costs explain short run deviations from the miller equilibrium the typical levels of leverage related costs of debt and bank borrowing costs over the sample period do not cause deviations from the miller equilibrium

selection criteria for models with non uniqueness abstract three objections are considered to the use of mccallum s rules for picking the minimal state set solution in rational expectations models with multiple equilibria it is shown that these difficulties can be resolved using the concept of expectational stability as a selection criterion

ranking income distributions a large variety of policy questions involve choices between social states and a consequent ordering of the feasible alternatives when these social states are related to the levels of welfare experienced by individuals or households two central issues stand out in determining the relative desirability of different social outcomes one of these is the essentially positive exercise of achieving comparability between households with different characteristics such as composition or preferences operating in different environments for example facing different price structures the other concerns the normative judgments implicit in the evaluation of alternative allocations of resourcesthe emphasis placed on inequality between households and the extent to which greater inequality can be compensated by higher average living standards this paper focuses on the second of these issues and in doing so we abstract from the problem of household comparability by considering a population of n households identical in all respects except for their incomes the question of ordering social states then becomes one of ranking income distributions over a group of anonymous households or individuals borrowing the usual assumptions imposed on consumer preferences we may suppose that a social ordering of income distributions can be represented by a welfare function 2

on non uniqueness in rational expectations models an attempt at perspective abstract many macroeconomic models involving rational expectations give rise to an infinity of solution paths even when the models are linear in all variables some writers have suggested that this non uniqueness constitutes a serious weakness for the rational expectations hypothesis one purpose of the present paper is to argue that the non uniqueness in question is not properly attributable to the rationality hypothesis but instead is a general feature of dynamic models involving expectations it is also argued that there typically exists in a very wide class of linear rational expectations models a single solution that excludes bubble or bootstrap effects one that occur only because they are arbitrarily expected to occur a systematic procedure for obtaining solutions free from such effects is introduced and discussed in addition this procedure is used to interpret and reconsider several prominent examples with solution multiplicities including ones developed by fischer black and john b taylor

partial multidimensional inequality orderings abstract the paper investigates how comparisons of multivariate inequality can be made robust to varying the intensity of focus on the share of the population that are more relatively deprived it is in the spirit of sen 1970 s partial orderings and follows the dominance approach to making inequality comparisons by focusing on those below a multidimensional inequality frontier we are able to reconcile the literature on multivariate relative poverty and multivariate inequality some existing approaches to multivariate inequality actually reduce the distributional analysis to a univariate problem either by using a utility function first to aggregate an individual s multiple dimensions of well being or by applying a univariate inequality analysis to each dimension independently one of our innovations is that unlike previous approaches the distribution of relative well being in one dimension is allowed to affect how other dimensions influence overall inequality our methods are also robust to choices of individual utility or aggregation functions we apply our approach to data from india and mexico to show inter alia how dependence between dimensions of well being can influence relative poverty and inequality comparisons between two populations

marginal tax rates evidence from nontaxable corporate bonds a note this study offers an alternative method of calculating marginal personal tax rates through the pairing of nontaxable industrial development and pollution control and taxable corporate bonds this procedure is shown to produce matched bond pairs that are comparable two hundred pairs of bonds are examined from the second quarter of 1973 through the second quarter of 1983 testing of the marginal tax rate relationships indicates that the marginal personal tax rate is less than the corporate statutory tax rate the examination of the relative pricing of taxable and nontaxable bonds provides an estimate of the marginal tax rates of bondholders who are indifferent between taxable and nontaxable bonds see for example gordon and malkiel 1 trczinka 6 and skelton 4 typically these implied marginal tax rates are calculated by comparing yield indices of taxable corporate bonds and nontaxable municipal bonds a potential problem with this method pointed out by trczinka 6 is that municipal and corporate bonds may not be of the same risk requiring some adjustment in the calculation another problem with this method is that the bond yield indices are computed from a sample of outstanding bonds introducing a potential yield to maturity bias associated with discount bonds skelton 4 an alternative procedure for calculating implied marginal tax rates is employed in this paper which avoids the problems of differential risks and the potential yield to maturity bias for discount bonds implied tax rates are calculated from pairs of newly issued bonds where each pair consists of one nontaxable corporate bond a tax exempt industrial development or pollution control bond and one taxable corporate bond 1 since only newly issued bonds are used in the computations the bias associated with capital gains and losses is avoided this study is organized into the following sections section i describes the data and the collection procedure the resultant implied marginal rates are presented in section ii summarizing and concluding remarks are provided in section iii

term structure effects on default risk premia and the relationship of default risky tax exempt yields to risk free taxable yields a note abstract the behavior of the default risk premium on bonds has caught the attention of many researchers some researchers have analyzed how default risk premia may vary with maturity it has been suggested that default risk premia are independent of maturity however recent research by rodriguez 1988 shows this to not hold for nonpar taxable bonds this research shows that the shape of the underlying term structure affects default risk premia for even par bonds in a systematic way furthermore the maturity dependent variation in equilibrium tax rates has a strong impact upon default risk premia behavior where equilibrium tax rates are derived from comparisons of taxable and tax exempt bonds the inclusion of the shape of the underlying term structure also has very important implications for the relation between taxexempt yields and taxable yields the slope and intercept terms of the relation between taxexempt and taxable yields are clearly dependent upon maturity a fact which has not been recognized before

relative risk in municipal and corporate debt the yields of municipal bonds and corporate bonds are often compared the ratios of municipal bond yields to corporate bond yields are thought by many to be indicative of the marginal tax bracket of the marginal holder of the bonds if for example the ratio is 60 the implication is that an investor in the fortypercent tax bracket will be indifferent between the fully taxed corporate and the fully tax exempt municipal this assumes that the two bonds are currently selling at par such comparisons have attracted increased attention since the publication of merton miller s seminal debt and taxes in this work miller indirectly suggests that the marginal tax bracket at work across tax exempt and taxable bonds is equal to the corporate tax rate while the ratio of yields seems to indicate that this is true for short term bonds the yields of long term taxexempts seem too high relative to long term taxables to confirm miller s hypothesis implicit in these comparisons and the conclusions drawn from them is the tenuous notion that the compared bonds are identical except for the taxability of the coupon for example some authors have questioned whether municipals and corporates are equally risky see trzcinka 1982 the purpose of this paper is to present preliminary evidence on the relative riskiness of the two classes of bonds

a note on non uniqueness in rational expectations models abstract mccallum has proposed a solution procedure for rational expectations models undetermined coefficients with the minimal set of state variables which can avoid the non uniqueness problem this procedure often requires some additional restrictions on the admissible values of the structural parameters in this note we show that in some cases these parameter restrictions may be defended with less ambiguity by considering the dynamics of the model rather than examining particular parameter values as suggested by mccallum

tax management and investment strategies of property liability insurers abstract the tax reform act tra of 1986 reduced the incentives for institutional investors to participate in the tax exempt bond market this paper develops a model of profit maximization incorporating the tra provisions applicable to property liability pl insurers the theory predicts that pl insurers will use underwriting losses to shelter taxable investment income and invest the balance of their portfolios in tax favored securities our empirical evidence reveals that insurers continued to invest in tax exempts following the tra suggesting that implicit tax rates are low enough to attract insurers into the long term tax exempt market however insurers reduced the proportions of income derived from tax exempt interest and dividends following the tra

option valuation of claims on real assets the case of offshore petroleum leases this paper extends financial option theory by developing a methodology for the valuation of claims on a real asset an offshore petroleum lease several theoretical and practical problems not present in applying option pricing theory to financial assets are addressed most importantly we show the necessity of combining option pricing techniques with a model of equilibrium in the market for the underlying asset petroleum reserves the advantages of this approach over conventional discounted cash flow techniques are emphasized the methodological development provides important insights for both company behavior and government policy promising empirical results are reported

banks firms and the relative pricing of tax exempt and taxable bonds abstract the traditional analysis of the relative pricing of tax exempt and taxable debt is a habitat theory of the term structure of interest rates in the traditional analysis the preferences of investors for particular maturities of debt lead to unique pricing relations at every point on the yield curve which are indicative of investor marginal tax brackets recent work by fama 1977 suggests that banks are potential arbitrageurs across tax exempt and taxable bond markets which force a particular equilibrium on the pricing of short term bonds miller 1977 suggests that the choice of debt or equity financing by firms in the aggregate forces a similar equilibrium on the pricing of all tax exempt and taxable bonds this paper exploits the institution of regulation q and its effects on the banking system to bring evidence to bear on the predictions of these three models

municipal debt and marginal tax rates is there a tax premium in asset prices we study the marginal tax rate incorporated into short term municipal rates using municipal swap market data using an affine model we identify the marginal tax rate and the credit liquidity spread in 1 week tax exempt rates as well as their associated risk premia the marginal tax rate averages 38 0 and is related to stock bond and commodity returns the tax risk premium is negative consistent with the strong countercyclical nature of after tax fixed income cash flows these results demonstrate that tax risk is a systematic asset pricing factor and help resolve the muni bond puzzle

what do normative indices of multidimensional inequality really measure we argue that normative indices of multidimensional inequality do not only measure a distribution s extent of inequity i e the gaps between the better off and the worse off but also its extent of inefficiency i e the non realized mutually beneficial exchanges of goods we provide a decomposition that allows quantifying these two parts of inequality exact formulas of the inequity and inefficiency components are provided for a generic class of social welfare functions the inequity component turns out to be a two stage measure which applies a unidimensional inequality measure to the vector of well being levels we critically discuss two prominent transfer principles viz uniform majorization and correlation increasing majorization in the light of the decomposition a decomposition of inequality in human development illustrates the analysis

robust multidimensional poverty comparisons we demonstrate how to make poverty comparisons using multidimensional indicators of well being showing in particular how to check whether the comparisons are robust to aggregation procedures and to the choice of multidimensional poverty lines in contrast to earlier work our methodology applies equally well to what can be defined as union intersection or intermediate approaches to dealing with multidimensional indicators of well being to make this procedure of some practical usefulness the paper also derives the sampling distribution of various multidimensional poverty estimators including estimators of the critical poverty frontiers outside which multidimensional poverty comparisons can no longer be deemed ethically robust the results are illustrated using data from a number of developing countries

taxable vs tax exempt bonds a note on the effect of uncertain taxable income for an investor to be indifferent between a municipal security and say a corporate security of equal risk the following would need to hold for par value bonds rte r 1 t where rte the yield on the municipal security r the yield on the corporate security and t the marginal tax rate of the investor if rte were greater than r 1 t rational investors would invest in municipal securities if it were less they would invest in corporates

default risk cannot explain the muni puzzle evidence from municipal bonds that are secured by u s treasury obligations fama 1977 and miller 1977 predict that one minus the corporate tax rate will equate after tax yields from comparable taxable and tax exempt bonds empirical evidence shows that long term tax exempt yields are higher than theory predicts two popular explanations for this empirical puzzle are that relative to taxable bonds municipal bonds bear more default risk and include costly call options i study u s government secured municipal bond yields which are effectively default free and nonmalleable these municipal yields display the same tendency to be too high i conclude that differential default risk and call options do not explain the municipal bond puzzle article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

robust multidimensional spatial poverty comparisons in ghana madagascar and uganda spatial poverty comparisons are investigated in three african countries using multidimensional indicators of well being the work is analogous to the univariate stochastic dominance literature in that it seeks poverty orderings that are robust to the choice of multidimensional poverty lines and indices in addition the study seeks to ensure that the comparisons are robust to aggregation procedures for multiple welfare variables in contrast to earlier work the methodology applies equally well to what can be defined as union intersection and intermediate approaches to dealing with multidimensional indicators of well being furthermore unlike much of the stochastic dominance literature this work computes the sampling distributions of the poverty estimators to perform statistical tests of the difference in poverty measures the methods are applied to two measures of well being the log of household expenditures per capita and children s height forage z scores using data from the 1988 ghana living standards study survey the 1993 national household survey in madagascar and the 1999 national household survey in uganda bivariate poverty comparisons are at odds with univariate comparisons in several interesting ways most important it cannot always be concluded that poverty is lower in urban areas in one region compared with that in rural areas in another even though univariate comparisons based on household expenditures per capita almost always lead to that conclusion

the effects of inflation and income taxes on interest rates some new evidence this paper reexamines the empirical relation between inflation and interest rates concentrating on the tax effect proposed by darby and feldstein using the random walk intercept model relative responses of taxable yields and tax exempt yields to expected infla tion are estimated the results show that for the sample period 1953 1982 the nominal yields on treasury bills rise at a rate greater than one for one with expected inflation while the nominal yields on default free municipal bonds rise approximately one for one with expected inflation thus the tax adjusted fisher hypothesis by darby and feldstein is empirically supported the components of treasury bills are also extracted and their variances are compared it is shown that variation of expected inflation is not overwhelmingly larger than that of the after tax real rate therefore on an after tax basis changes in the real rate explain a substantial portion of changes in the nominal rate of interest

tax induced intra year patterns in bonds yields the ratio of the yields on short term tax exempt and taxable bonds exhibits a sawtooth pattern that is consistent with the impacts of tax deferments from dates on which interest payments are received to dates on which the resulting tax payments are paid the effect of the tax deferment at turns of calendar years does not differ appreciably from the effect at the turn of any other tax quarter investors with tax payment schedules that differ from that of the investor that is indifferent between investing in taxable and tax exempt bolnds may benefit from tax related timing strategies for investing in these bonds issuers may benefit from tax related timing strategies for scheduling interest payments