some aspects of the taxation of capital gains abstract the analysis of the effects of capital gains taxation requires a careful modelling both of the details of the tax code and the imperfections in the capital market under the standard assumptions concerning perfect capital markets and under the standard idealizations of the tax code there are several strategies by which rational investors can avoid note only all taxes on their capital income but also all taxes on their wage income these strategies leave individuals consumption and bequests in each state of nature and at each date unchanged from what they would have been in the absence of taxes although certain detailed provisions of the tax code may limit the extent to which rational investors can avail themselves of these tax avoidance activities there are ways in a perfect capital market by which the effects of these restrictions can be ameliorated accordingly any analysis of the effects of capital taxation must focus on imperfect capital markets if individuals face limitations on the amounts which they can borrow and or if there are limitations on short sales then under some circumstances there is a locked in effect individuals do not sell securities which they would have sold in the absence of taxation but under other circumstances individuals are induced to sell securities that they otherwise would have held in order to take advantage of the asymmetric treatment of short term losses and long term gains a policy of realizing gains as soon as they become eligible for long term treatment dominates the policy of postponing the realization of capital gains provided the gains are not too large a simple general equilibrium model is constructed within which it is shown that the taxation of capital gains may increase the volatility of asset prices and lead individuals not to trade when they otherwise would while the analysis casts doubt on the significance of the welfare losses resulting from these exchange inefficiencies there are circumstances in which the tax leads to production inefficiencies e g terminating projects at other than the socially optimal date finally we argue that the focus of some recent policy debates on the short run revenue impact of a decrease in the tax rate on capital gains is misplaced even when the short run revenue impact is positive consumption may increase thus exacerbating inflationary pressures and private savings may decrease thus leading to a lower level of investment in the private sector moreover there is some presumption that the long run revenue impact is negative our analysis has some important implications for empirical research in particular it suggests that the impact of the tax is not adequately summarized by a single number such as the effective tax rate representing the average ratio of tax payments to capital gains moreover the impact of the tax cannot be assessed by looking only at reported capital gains and losses

new evidence of the impact of dividend taxation and on the identity of the marginal investor this paper examines the impact of a major change in dividend taxation introduced in the united kingdom in july 1997 the reform was structured in such a way that the immediate impact fell almost entirely on the largest investor class in the united kingdom namely pension funds we find significant changes in the valuation of dividend income after the reform in particular for high yielding companies these results provide strong support for the hypothesis that taxation affects the valua tion of companies and that pension funds were the effective marginal investors for high yielding companies

ex day behavior tax or short term trading effects this study examines the behavior of share prices around the ex dividend dates before and after the introduction of the 1988 income and corporation taxes act that reduced substantially the tax differential between dividends and capital gains in the united kingdom we find that in the pre 1988 period when the differential taxation of dividends and capital gains is high ex day returns are positive and significant in contrast in the post 1988 period ex day returns are in most cases negative and insignificant further analysis reveals that while ex day returns are significantly related to dividend yield and to the length of the settlement period they are not affected by the commonly used measures of transaction costs such as the bid ask spread and trading volume or by the day of week month of the year type of dividend distribution or number of days to the actual receipt of the cash dividend we conclude that taxation affects significantly ex day share prices in the previous studies have documented that the risk adjusted abnormal returns on the ex dividend dates are positive and significantly related to the dividend yield the interpretation of these findings is however controversial the question relates to what category of investors sets ex day prices elton and

the ex dividend day behavior of canadian stock prices tax changes and clientele effects with some simple assumptions the ex dividend day price drop and the associated dividend can be used to measure the market s marginal tax rate previous research has estimated the implied tax rate for the u s this paper extends the analysis to canada where the tax treatment of dividends and capital gains is completely different from that in the u s the paper also presents estimates from 1970 80 to include four distinct periods when the tax treatment was different hence we include an implied test of market efficiency as well as those for the relevance of taxes and the existence of tax based dividend clienteles

dividend stripping risk exposure and the effect of the 1984 tax reform act on the ex dividend day behavior this article investigates the importance of risk exposure and the effects of the 1984 tax reform act on the ex dividend day behavior the tax reform appears to have inhibited short term trading activities by increasing the risk exposure of incorporated traders moreover stocks for which existing listed options permitted the reduction of risk through hedged dividend stripping strategies were affected much less from the new tax code than their nonoptionable counterparts this implies that risk affects investors dividend yield choice and that the ex dividend day behavior may be caused in part by the existence of risk premia copyright 1989 by the university of chicago

globesity the effects of globalization on obesity and caloric intake abstract we examine the effect of globalization in its economic and social dimensions on obesity and caloric intake namely the so called globesity hypothesis our results suggest a robust association between globalization and both obesity and caloric intake a one standard deviation increase in globalization is associated with a 23 8 percent increase in obese population and a 4 3 percent rise in calorie intake the effect remains statistically significant even after using an instrumental variable strategy to correct for some possible reverse causality and ommited variable bias a lagged structure and corrections for panel standard errors however we find that the primary driver of the globesity phenomenon is the social rather than the economic dimension of globalization and specifically the effect of changes in information flows and social proximity on obesity a one standard deviation increase in social globalization increased the percentage of obese population by 13 7 percent

return autocorrelation and institutional investors abstract we propose and test the hypothesis that trading by institutional investors contributes to serial correlation in daily returns our results demonstrate that nyse particles and individual security daily return autocorrelationsare an increasing function of the level of institutional ownership moreover the results are consistent with the hypothesis that institutional trading reflects information and increases the speed of price adjustment the relation between autocorrelation and institutional holdings does not however apparent to be driven by market frictions or rational time varying required rates of return we conclude that institutional investors correlated trading patterns contribute to axial correlation in daily returns

upstairs market for principal and agency trades analysis of adverse information and price effects this paper directly tests the hypothesis that upstairs intermediation lowers adverse selection cost we find upstairs market makers effectively screen out information motivated orders and execute large liquidity motivated orders at a lower cost than the downstairs market upstairs markets do not cannibalize or free ride off the downstairs market in one quarter of the trades the upstairs market offers price improvement over the limit orders available in the consolidated limit order book trades are more likely to be executed upstairs at times when liquidity is lower in the downstairs market

the impact of obesity on wages abstract previous studies of the relationship between body weight and wages have found mixed results this paper uses a larger data set and several regres sion strategies in an attempt to generate more consistent estimates of the effect of weight on wages differences across gender race and ethnicity are explored this paperjnds that weight lowers wages for white females ols esti mates indicate that a difference in weight of two standard deviations roughly 65 pounds is associated with a difference in wages of 9 percent in absolute value this is equivalent to the wage effect of roughly one and a half years of education or three years of work experience negative cor relations between weight and wages observed for other gender ethnic groups appear to be due to unobserved heterogeneity i introduction several previous studies have found among females a negative cor relation between body weight and wages there exist three broad categories of ex planations for this finding the first explanation is that obesity lowers wages for example by lowering productivity or because of workplace discrimination the sec ond is that low wages cause obesity this would be true if poorer people consume

dividend effects in israel a puzzle abstract we examine whether stock returns on ex dividend days in the tel aviv stock exchange tase reflect the differential taxation of dividends and capital gains tase data offer significant advantages over data used by prior studied less frictional trading and identifiable tax rates we find that stock prices on the tase on ex dividend days exhibit significant abnormal returns surprisingly we find no evidence of short term trading around ex dividend days to exploit these profit opportunities

health behavior health knowledge and schooling the positive correlation between schooling and good health is well documented one explanation is that schooling helps people choose healthier life styles by improving their knowledge of the relationship between health behaviors and health outcomes that is schooling improves the household s allocative efficiency in producing health this empirical study uses direct measures of health knowledge to test this explanation part of the relationship between schooling and the consumption of cigarettes alcohol and exercise is explained by differences in health knowledge however most of schooling s effects on health behavior remain after differences in knowledge are controlled for

dividend yield and expected returns abstract previous research examining the relation between dividend yield and equity returns documents a u shaped pattern arising from the positive capm adjusted average excess return of zero dividend firms in contrast this paper reports that zero dividend firms earn negative average excess returns relative to firms of similar size despite the apparent conformity of these results to the predictions of after tax asset pricing models the negative size adjusted excess returns cannot be drive solely by tax effects these excess returns which are concentrated in the initial zero dividend years and approach 1 per month are attributed to possible dividend expectation effects rather than taxes

taxes and dividends the uk evidence abstract this paper provides empirical evidence on the simultaneous effects of both corporation and personal income taxes on dividend payment adjustments and on the behaviour of share prices on the ex dividend dates the results show that companies set their dividend policies to minimise their tax liability and to maximise the after tax return of their shareholders in particular firms that are unable to deduct the advanced corporation tax from their tax liability are found to pay low dividends in addition consistent with the tax hypothesis we find that the differential taxation of dividends and capital gains results in a decrease in ex day share prices by significantly less than the amount of the dividend there is no evidence of a tax induced dividend clientele

smart fund managers stupid money we develop a model of mutual fund manager investment decisions near the end of quarters we show that when investors reward better performing funds with higher cash flows near quarter ends a mutual fund manager has an incentive to distort new invest ment toward stocks in which his fund holds a large existing position the short term price impact of these trades increase the fund s reported returns higher returns are rewarded by greater subsequent fund inflows which in turn allow for more investment distortion the next quarter because the price impact of trades is short term each subsequent quar ter begins with a larger return deficit eventually the deficit cannot be overcome thus our model leads to the empirically observed short run persistence and long run rever sal in fund performance in doing so our model provides a consistent explanation of many other seemingly contradictory empirical features of mutual fund performance jel classification d82 g2 g14

ex dividend day stock price behavior the case of the 1986 tax reform act this paper analyzes the behavior of stock prices around ex dividend days after the implementation of the 1986 tax reform act that dramatically reduced the difference between the tax treatment of realized long term capital gains and dividend income in 1987 and completely eliminated the differential in 1988 we show that this tax change had no effect on the ex dividend stock price behavior which is consistent with the hypothesis that long term individual investors have no significant effect on ex day stock prices during this time period the results indicate that the activity of short term traders and corporate traders dominates the price determination on the ex day

new evidence that taxes affect the valuation of dividends this paper uses british data to examine the effects of dividend taxes on investors relative valuation of dividends and capital gains british data offer great potential to illuminate the dividends and taxes question since there have been two radical changes and several minor reforms in british dividend tax policy during the last 30 years studying the relationship between dividends and stock price movements during different tax regimes offers an ideal controlled experiment for assessing the effects of taxes on investors valuation of dividends using daily data on a small sample of firms and monthly data on a much broader sample we find clear evidence that taxes affect the equilibrium relationship between dividend yields and market returns these findings suggest that taxes are important determinants of security market equilibrium and deepen the puzzle of why firms pay dividends financial economists have long been puzzled by corporate dividend behavior many individual investors should value a dollar of corporate dividends less than a dollar of corporate retentions because the former gives rise to greater tax liabilities corporations however face equal costs of paying out dividends and retaining earnings miller and modigliani 31 demonstrated that in the absence of taxes dividend policy should have no effect on share valuation if dividends are tax penalized however a value maximizing firm should pay no dividends widespread dividend payments to taxable investors are therefore surprising in 1981 dividend tax revenues in the united states were estimated to exceed 20 billion dollars indeed some have interpreted the large volume of dividends paid as evidence against the rational behavior postulates typically used by economists the dividend question has stimulated a large theoretical and empirical literature concerned with the qluestion of investors valuation of dividends in particular the question of how taxes affect the market valuation of dividends has generated considerable controversy numerous studies including auerbach 2 litzenberger and ramaswamy 24 26 morgan 34 and rosenberg and marathe

large block transactions the speed of response and temporary and permanent stock price effects abstract the paper investigates how quickly prices attain new equilibrium levels after large block transactions and measures the associated temporary and permanent price effects we find that prices adjust within at most three trades with most of the adjustment occurring in the first trade the temporary price effect for seller initiated transactions is related to block size but the temporary price effect observed for buyer initiated transactions is no larger than that observed in 100 share trades most of the price effect associated with block trades is permanent and is related to block size regardless of the initiating party

portfolio rebalancing and the effective taxation of dividends and capital gains following the tax reform act of 1986 abstract the tax reform act tra of 1986 among other things equalized the nominal taxation of dividend and capital gains income the evidence is consistent with the hypothesis that ordinary investors rebalanced their portfolio holdings in response to the new taxes such rebalancing appears to have concentrated on liquid stocks indicating that transaction costs are an important consideration for ordinary investors involved in restructuring their portfolio holdings the tax clientele relationships that existed prior to the new act were distorted temporarily but have reappeared by 1988 interestingly investors post reform effective tax rates still give a preference to capital gains as they did prior to the tax reform

the behavior of stock prices around institutional trades all trades executed by 37 large investment management firms from july 1986 to december 1988 are used to study the price impact and execution cost of the entire sequence package of trades that we interpret as an order we find that market impact and trading cost are related to firm capitalization relative package size and most importantly to the identity of the management firm behind the trade money managers with high demands for immediacy tend to be associated with larger market impact financial economists have long studied the equity trading process and its impact on stock prices much prior empirical research isolates individual trades and analyzes the behavior of the stock price around each trade see for example kraus and stoll 1972a holthausen leftwich and mayers 1987 1990 keim and madhavan 1991 petersen and umlauf 1991 hausman lo and mackinlay 1992 and chan and lakonishok 1993 evaluating the behavior of stock prices around trades provides a means of discriminating among various hypotheses as to the elasticity of the demand for stocks yields an estimate of the cost of executing trades and a measure of the liquidity of a market and permits tests of different models of the determination of quotes and transaction prices for many institutional investors however even a moderately sized position in a stock may represent a large fraction of the stock s trading volume accordingly an investment manager s order is often broken up into several trades it is often misleading therefore to consider an individual trade as the basic unit of analysis in the study of trading activity and its effects on prices this paper uses the record of trades executed by 37 large investment manage

the ex dividend day behavior of stock prices a re examination of the clientele effect a comment in a recent article in this journal kalay 5 has written an extensive comment on our 1970 article 2 concerning marginal stockholder tax rates and the clientele effect while we are flattered that our article is viewed of sufficient importance to gain this attention 12 years after it was written we do have reservations about kalay s comments we are principally concerned with his interpretations of relevant transaction costs and the role they play in setting equilibrium

identifying the interaction between stock market returns and trading flows of investor types looking into the day using daily data abstract this paper introduces a new method for identifying the simultaneity between returns and trading flows the proposed method enables us to identify the intraday interaction using daily data and provides measures of the information content of trading flows and their instantaneous response to public information and information revealed by market prices applying this method to daily data on investor types from the korea stock exchange we find significant intraday bi directional interaction between flows and returns and their latent common drivers altering some of the results of the previous literature based on cholesky assumptions thus we obtain a number of new insights concerning the behavior of investor types

sraffa marshall and the principle of continuity this article addresses piero sraffa s critique of alfred marshall s supply anddemand framework and sraffa s later book production of commodities taking into account an aspect that has been relatively neglected in the literature namely the ontology underlying the conceptions of sraffa and marshall this ontological dimension can be best understood through sraffa s critique of the principle of continuity the principle of continuity was used by marshall as a methodological justi cation for the use of partial equilibrium methods in the analysis of supply and demand in a context where different causes are deeply interconnected sraffa acknowledges the existence of interconnectedness but rejects marshall s methodology which is based on the principle of continuity as it becomes clear in his unpublished manuscripts which are examined here

reduction of constraints on arbitrage trading and market efficiency an examination of ex day returns in hong kong after introduction of electronic settlement previous research documents positive ex dividend day returns in excess of one percent in the unique institutional setting of hong kong where neither dividends nor capital gains are taxed short term arbitrage trades around the ex day were hampered by physical settlement procedures after the recent switch to an electronic settlement system which enables such trades ex day abnormal returns have declined to an insignificant 0 17 percent this drop is more pronounced for high yield stocks which are more likely to attract dividend capture trading the evidence points to the crucial role of short term traders in ensuring the pricing efficiency of financial markets the role of short term traders in financial markets is a matter of considerable controversy the debate on this issue has heightened in the wake of the recent asian currency crisis which some governments blamed on the activities of short term traders critics contend that short term traders engage in speculation leading to excessive and debilitating volatility in market prices others argue that short term traders perform a useful role by increasing valuable liquidity berkman and eleswarapu 1998 report that regulatory changes on the bombay stock exchange curbing short term trading had a measurably adverse impact on asset values supporters of short term traders also argue that these traders make a key contribution to the efficiency of financial markets by constantly scouring the markets for arbitrage opportunities this study examines the impact of the

liquidity investment style and the relation between fund size and fund performance using stock transactions data along with detailed stockholdings for a comprehensive sample of u s actively managed equity mutual funds from 1993 to 2002 this paper empirically examines the effect of liquidity and investment style on the relation between fund size and fund performance consistent with chen hong huang and kubik 2004 i find a significant inverse relation between fund size and fund performance further this inverse relation is stronger among funds that hold less liquid portfolios the inverse relation between fund size and fund performance is also more pronounced among growth and high turnover funds that tend to have high demands for immediacy overall this paper s findings suggest that liquidity is an important reason why fund size erodes performance

determinants of portfolio performance in order to delineate investment responsibility and measure performance contribution pension plan sponsors and investment managers need a clear and relevant method of attributing returns to those

trading cost the critical link between investment information and results 1983 trading cost the critical link between investment information and results financial analysts journal vol 39 no 3 pp 39 44

seasonality estimation in thin markets the greater availability of daily data in the u s has led to a number of studies of the seasonality of daily stock index returns while the studies recognized the potential impacts of nontrading and price adjustment delays in general no formal analyses of such impacts were presented in this paper analytic results are presented for the articulation between these phenomena the implications of the analysis are discussed and shown to be consistent with a sample of u k index data a modified form of the negative weekend effect is found to be present in the u k data analyzed tests for the presence of seasonality in equity returns have been carried out by a number of authors at both the monthly and daily return levels at the monthly level rozeff and kinney 18 discovered evidence of seasonality in the u s while officer 15 detected the presence of seasonality in australian data fama 7 carried out some early work on u s daily data and more recent contributions have been made by cross 5 french 9 and gibbons and hess 10 while these studies recognized the presence of thin trading and its potential impacts upon the experimental results no formal analyses were presented in this paper we derive analytic results for the articulation between seasonality and nontrading effects section i the implications of this analysis are tested using a sample described in section ii of u k daily index data2 in section iii section iv discusses the implications of the results for capital market efficiency finally

a direct test of methods for inferring trade direction from intra day data this study directly tests the ability of several competing methods to identify market buy and sell orders using intra day quote and trade prices and identifies factors that affect the accuracy of the methods lee and ready s 1991 algorithm performs about the same as the tick test but the performance of both methods is worse than expected the results show that the use of either algorithm to classify trades can lead to significantly biased estimates of effective spreads and signed volume but the tick test provides better estimates of effective spreads and signed volume than lee and ready s method i introduction the use of intra day prices in empirical studies of securities markets is increasingly common and studies frequently require trades be identified as buyer or seller initiated unfortunately most data sets do not identify trade direction methods have however been proposed that allow trade direction to be inferred from adjacent prices and quotes the accuracy of these methods and the implica tions for microstructure research are still unresolved issues in large part because trade direction is unobservable in most financial data sets this study directly tests the ability of several competing methods to iden tify market buy and sell orders using intra day quote and trade prices the tests are conducted using the torq database a unique data set the new york stock exchange makes available to researchers that contains information on trades quotes and orders using the tick tests and lee and ready s lr hereafter 1991 method to classify trades as buys or sells and comparing the results to the direction of the actual orders i directly test the accuracy of the classification algorithms the tests also identify the factors that affect the accuracy of the clas sification methods additional tests demonstrate that using these algorithms can lead to biased inferences in two of their most common applications estimating effective spreads and signed volume trading test results also show that the tick

ex dividend stock price behavior and arbitrage opportunities this paper investigates the relation between ex dividend stock price behavior and arbitrage oppor tunities in a continuous trading frictionless economy the authors demonstrate that it is possible for the ex dividend stock price drop to differ from the dividend and still short term traders cannot gene rate arbitrage profits the argument is independent of transactions c osts the relevance of this insight to estimating the marginal tax br acket based on ex dividend stock price drops is explored furthermore this insight is also applied to the area of option pricing in which the special class of escrowed dividend stock price processes is stud ied the authors show that most elements from this class of stock pri ce processes generate invalid option pricing formulas copyright 1988 by the university of chicago

marginal stockholder tax effects and ex dividend day price behavior evidence from taxable versus nontaxable closed end funds almost all research on the movement of stock prices on ex dividend days has found that prices decline by less than the dividend though this is consistent with tax effects several papers have argued that this phenomenon could be caused by market microstructure effects in this paper we make use of a natural experiment that provides support for the tax explanations of ex dividend behavior some closed end funds have taxable and some have nontaxable dividend distributions both types are subject to taxes on capital gains the implication of this for ex dividendday price behavior is very different between these two types of funds if taxes matter this paper demonstrates that the direction of ex dividendday price behavior is consistent with a tax explanation and that ex dividend day price behavior changes as theory would suggest with changes in the tax law

the costs and determinants of order aggressiveness abstract this paper examines the costs and determinants of order aggressiveness aggressive orders have larger price impacts but smaller opportunity costs than passive orders price impacts are amplified by large orders small firms and volatile stock prices to minimize the implementation shortfall the optimal strategy is to enter buy sell orders at the bid ask aggressive buy sell orders tend to follow other aggressive buy sell orders and occur when bid ask spreads are narrow and depth on the same opposite side of the limit book is large small aggressive buys are more likely than sells to be motivated by information

institutional investors and stock market volatility statement of responsibility on t p reads xavier gabaix parameswaran gopikrishnan vasiliki plerou h eugene stanley

what lies behind socio economic inequalities in obesity in spain a decomposition approach the expansion of obesity stands as a major food related health concern arguably driven by a socio economic vector however alongside its prevalence still scant evidence has examined on the underlying factors that explain the emergence socio economic inequalities in obesity this paper makes use of evidence form spain to empirically address the hypothesis of the existence of income related inequalities in the probability of suffering obesity in spain using data from 2003 besides quantifying inequalities we take advantage of a concentration index methodology that allows a decomposition of the cross section explanatory factors our findings provide suggestive evidence of significant socio economic inequalities in the probability of being obese in spain however in decomposing such inequalities we find that education attainment and other demographic covariates appear to have a prominent influence hence rather than the so called pure income effect we conclude that socio economic inequalities in obesity result from the additional influence of other confounding observed and unobserved effects

the structure of the investment management industry revisiting the new paradigm will a new paradigm of investment management lead to concentration of the money management business will the merger trend continue will fees decline and what accounts for product proliferation in an industry that struggles to deliver on the implied promise of its products answers some that may surprise to these questions and more

options taxes and ex dividend day behavior a novel way of estimating the expected as opposed to the actual share price fall off is developed using option prices this method is applied to the uk traded options market using data from 1979 to 1984 the results show that a the average expected fall off implicit in option prices is around 55 to 60 of the dividend and significantly different from it the fall off also varied inversely with the dividend yield which is consistent with the prediction of the tax clientele hypothesis b the estimates of the expected fall off were not significantly different from the actual fall off c finally the results imply that the usual assumption made in valuing options on dividend paying stocks that the fall off is equal to the dividend would lead to downward biased estimates of the option value

sraffa wittgenstein and neoclassical economics the intellectual interaction of piero sraffa and ludwig wittgenstei n in the late 1920s is examined sraffa s critical treatment of themes in wittgenstein s tractatus is related to the former s 1926 laws of returns article and argued to have precipitated in part the latter s change in philosophy wittgenstein s later conclusions are argued to be applicable to the neoclassical account of preferences such that sraffa s original critique appears reformulated from the 1926 examination of partial equilibrium analysis in the wittgensteinian argument against autonomy of preferences a critique of atomistic individualism underlies sraffa s thinking in the original interaction with wittgenstein copyright 1988 by oxford university press

dividends taxes and common stock prices the ex dividend day behavior of common stock prices before the income tax this study examines the ex dividend day behavior of common stock prices before the enactment of the federal income tax on ex dividend days during the pre tax period stock prices fell on average by the full amount of the dividend the data are consistent with the hypothesis that i investors in the pre tax period value dividends and capital gains as perfect substitutes and ii the differential taxation of dividends and capital gains has since caused investors to discount the value of taxable cash dividends in relation to capital gains

tax induced trading around ex dividend days abstract this paper investigates trading volume around ex dividend days for taxable distributions cash dividends it is found that trading volume increases significantly around the ex dividend day this increase is more pronounced for high yield actively traded stocks and after brokerage commissions became negotiable the results are consistent with the hypothesis that short term traders have an impact on ex day price behavior at least for taxable distributions for non taxable distributions stock splits and stock dividends we find negative abnormal volume around ex day

consumption volatility production volatility spot rate volatility and the returns on treasury bills and bonds abstract the study documents a relation between the expected holding period premiums on treasury bills and the ex ante conditional volatilities of consumption spot one month interest rate and industrial production a model portraying the relation as a risk and return phenomenon is presented and tested consistent with the model the coefficients of the relation appear to depend on the sensitivity of the realized premium to the ex post shocks in consumption industrial production and the spot rate the model fits the data better than the traditional term premium models

piero sraffa on utility and the subjective method in the 1920s a tentative appraisal of sraffa s unpublished manuscripts the paper reconstructs sraffa s assessment of utility based and individualistic explanations of demand in marshallian economics in the light of some fresh evidence provided by sraffa s unpublished manuscripts of the 1920s it is shown that sraffa criticised the standard marshallian explanation of individual consumption choices emphasised the independent measurement requirement in explanation lacked enthusiasm for the heuristic potentialities of the subjective method in economic theorising and strove for an analysis of the phenomena of interdependence in the sphere of production as well as in the sphere of consumption

tax reform and ex dividend day behavior this paper investigates the effect of a major canadian tax reform on the ex dividend day behavior of companies on the toronto stock exchange the results are inconsistent with the hypothesis that price changes on ex dividend days reflect the relative taxation of dividends and capital gains for the representative investor but are consistent with the hypothesis that ex dividend day price behavior reflects short term trading activities

dynamic trading policies with price impact abstract in this paper we analyze the optimal policy for a risk averse agent who wants to sell a large block of shares of a risky security in the presence of price impact and transactions costs our framework reduces to the standard merton portfolio problem in the absence of any market frictions optimal liquidation results in revenue distributions which are substantially different from those generated by a naive strategy the main tradeoff involves choosing between revenue distributions which have high means versus those which have low variances furthermore our results suggest that the effective liquidity of a security depends on its return distribution and on the characteristics of the agent carrying out the trade as well as on the price impact function

price and volume effects of changes in msci indices nature and causes abstract using changes in the msci standard country indices for 29 countries between 1998 and 2001 we document that stock returns and volumes exhibit index effects in international markets similar to those detected by the studies of us stocks the stocks added to the indices experience a sharp rise in prices after the announcement and a further rise during the period preceding the actual change though part of the gain is lost after the actual change date the stocks that are deleted from the indices on the other hand witness a steady and marked decline in their prices trading volumes increase significantly and remain at high levels after the change date for the added stocks there are also considerable cross country variations in these effects tests using data on various measures reflecting the different hypotheses fail to turn up any evidence in support of information effects our evidence appears to be more supportive of the downward sloping demand curve hypothesis there is some evidence of price pressure and mild evidence of liquidity effect particularly in japan and uk

stealth trading which traders trades move stock prices usingaudit trail data for a sample of nyse firms we show that medium size trades are associated with a disproportionately large cumulative stock price change relative to their proportion of all trades and volume this result is consistent with the predictions of barclay and warner s 1993 stealth tradinghypothesis we find that the source of this disproportionately large cumulative price impact of medium size trades is trades initiated by institutions this result is robust to various sensitivity checks our findings appear to confirm street lore that institutions are informed traders 2001 elsevier science s a all rights reserved

can money flows predict stock returns money flow is defined as the difference between uptick and downtick dollar trading volume despite little published research regarding its usefulness the measure has become an increasingly popular technical indicator our analysis demonstrates that money flows are highly correlated with same period returns we also found strong evidence of money flow momentum in that lagged money flows can be used to predict future money flows most important is our finding that money flows appear to predict cross sectional variation in future returns their predictive ability is sensitive however to the method of money flow measurement e g the exclusion or inclusion of block trades and the forecast horizon

the upstairs market for large block transactions analysis and measurement of price effects this article develops a model of the upstairs market where order size beliefs and prices are determined endogenously we test the model s predictions using unique data for 5 625 equity trades during the period 1985 to 1992 that are known to be upstairs transactions and are identified as either buyer or seller initiated we find that price movements prior to the trade date are significantly positively related to trade size consistent with information leakage as the block is shopped upstairs further the temporary price impact or liquidity effect is a concave function of order size which may result from upstairs intermediation

implications of the discreteness of observed stock prices stock prices on the organized exchanges are restricted to be divisible by 1 8 therefore the true price usually differs from the observed price this paper examines the biases resulting from the discreteness of observed stock prices it is shown that the natural estimators of the variance and all of the higher order moments of the rate of returns are biased an approximate set of correction factors is derived and a procedure is outlined to show how the correction can be made the natural estimators of the beta and of the variance of the market portfolio on the other hand are nearly unbiased the behavior of stock prices has been an issue of interest to the financial economist for many years this interest resulted in a growing number of empirical studies which attempt to estimate this behavior e g blattberg and gonedes 2 fama 6 fama and roll 7 8 barnea and downes 1 to date stock price behavior is estimated under the assumption that the observed trading price is the true equilibrium price however observed stock prices and stock price changes on the organized exchanges are restricted to multiples of 1 8 of a dollar 1 therefore if the true distribution of stock prices is continuous an observed trading price can be different from the true price this paper examines the biases in estimating the moments of stock price changes caused by the discreteness of observed stock prices the major focus of the paper is in noting this problem providing a model which explains the source of these biases and quantifying their size section i demonstrates that due to the discrete nature of observed stock prices the natural estimators for the variance and for the higher order moments of the rate of returns are biased upward this bias is larger for stocks with lower prices and smaller standard deviation for instance assuming that the standard deviation a is 0 001 the stock price is one dollar the true probability distribution of stock prices is lognormal and the observed prices are as close as possible to the true prices then the natural estimator of r has expectation 0 01400 hence it is biased upward by 1300 significant biases have important implications in option pricing we derive an approximate set of correction factors which can be applied to the

return predictability following large price changes and information releases abstract we examine return behavior following large price change events unconditional post event abnormal returns are found to be unimportant as we condition on other criteria related to the quality of information like volume and public announcements the abnormal returns become large the type of news provides further refinement if the news relates to earnings or analyst recommendations then the 20 day abnormal returns become much larger ranging from 3 to 4 for positive events and about 2 25 for negative events finally an out of sample trading strategy confirms investor under reaction and generates significant abnormal annualized returns of the order of 12 18

volume for winners and losers taxation and other motives for stock trading capital gains taxes create incentives to trade our major finding is that turnover is higher for winners stocks the prices of which have increased than for losers which is not consistent with the tax prediction however the turnover in december and january is evidence of tax motivated trading there is a relatively high turnover for losers in december and for winners in january we conclude that taxes influence turnover but other motives for trading are more important we were unable to find evidence that changing the length of the holding period required to qualify for long term capital gains treatment affected turnover investors responding to the tax incentives in the capital gains laws should produce predictable patterns in the volume of trading in a stock but not necessarily in its price this study uses past price patterns as a proxy to measure the incentives to sell or avoid selling a stock and observes trading volumes to estimate the extent to which investors respond to these incentives past price patterns may influence trading volumes for other non tax related reasons as well these are also considered we find that past prices influence current incentives to trade through both tax and non tax motives winners tend to have higher abnormal volumes than losers this would be expected if non tax related motives were predominant however the influence of tax related motives on trading volume is shown by seasonal variations in the relationship between past price changes and turnover as predicted by tax induced trading theories the volume of losers is higher than normal in december and the volume of winners is higher than normal in january we found no evidence that trading volume was affected by changes in the length of the holding period required to qualify for long term capital gains investors reactions to capital gains taxes are important for several reasons first a comprehensive understanding of investor behavior would include both price and volume understanding the relationship between taxes and volume is a fruitful and convenient method of contributing to this subject the resource allocation consequences of capital gains taxes are controversial in part because

a microstructure analysis of ex dividend stock price behavior before and after the 1984 and 1986 tax reform acts this article extends ex dividend research by explicitly modeling trading at bid and ask quotations this refinement distinguishes between buying and selling for long term investors and short term dividend capture traders it also explicitly incorporates the bid ask spread and eliminates some potential measurement errors that may bias returns marginal conditions are tested during 1983 and 1988 periods that span the 1984 and 1986 tax reform acts results for long term investors are consistent with the elimination of favorable capital gains tax rates at observed prices tax neutral short term traders cannot profit corporate dividend capture traders face profit opportunities during 1983 that disappear by 1988 copyright 1996 by university of chicago press

investor tax rationality and the relationship between dividend yields and equity returns an explanatory note abstract recently in this journal it is contended that the empirically observed relationship between stock returns and dividend yields cannot be reconciled with tax rationality in response this present note re examines the theoretical basis for this conclusion we conclude that the empirical evidence of market behavior may at present be interpreted as consistent with investor tax based rationality that capitalizes the firm s earnings on an after personal tax basis

dividend capture in nasdaq stocks abstract we examine the importance of dividend capture trading in nasdaq stocks by testing for cross sectional relations between ex day abnormal returns and bid ask spreads throughout we find that ex day returns and spreads are positively related the relation increases across dividend yield quintiles and is strongest in high yield stocks the relation does not appear in a sample of non ex dividend days these findings indicate that dividend capture trading affects the ex day returns of at least some particularly high yield nasdaq stocks and that dividend capture trading is important for understanding ex dividend day returns

optimal replication of options with transactions costs and trading restrictions this paper analyzes the strategy that minimizes the initial cost of replicating a contingent claim in a market with transactions costs and trading constraints the linear programming and two stage backward recursive models developed are applicable to the replication of convex as well as nonconvex payoffs and to a portfolio of options with different maturities the paper s formulation conveniently accounts for fixed and variable transactions costs lot size constraints and position limits on trading the article shows that in the presence of trading frictions it is no longer optimal to revise one s portfolio in each period at the optimum cash flows in excess of the desired ones may be generated the optimal policy trades off the curvature of the payoff that is generated against the terminal slack

do demand curves for currencies slope down evidence from the msci global index change traditional portfolio balance theory derives a downward sloping currency demand function from limited international asset substitutability historically this theory enjoyed little empirical support we provide direct evidence by examining the exchange rate effect of a major redefinition of the msci international equity index in 2001 and 2002 the index changes implied large changes in the representation of different countries in the msci world index and therefore produced strong exogenous equity flows by index funds our event study shows a strong announcement effect in which countries with a decreasing equity representation vis a vis the u s depreciated against the dollar

the price dynamics of common trading strategies a deterministic trading strategy can be regarded as a signal processing element that uses external information and past prices as inputs and incorporates them into future prices this paper uses a market maker based method of price formation to study the price dynamics induced by several commonly used financial trading strategies showing how they amplify noise induce structure in prices and cause phenomena such as excess and clustered volatility

social interactions and the contemporaneous determinants of individuals weight obesity and overweight are central issues in the public health debate in most developed countries in this debate some of the socio economic determinants of obesity and overweight are still relatively unexplored this paper presents an empirical examination of the possible influence of social interactions on contemporaneous obesity and over underweight a joint estimation model for obesity and self image is applied to a sample for spain taken from the european union household panel for 1998 the results suggest that obesity might be in part a social phenomenon connected to individuals social life

transparency and liquidity a study of block trades on the london stock exchange under different publication rules this article examines whether reducing a market s transparency by delaying the publication of prices for block trades has any impact on liquidity the analysis uses a sample of 5987 blocks from the london stock exchange that cover three different publication regimes immediate 1987 88 90 minutes 1991 92 and 24 hours 1989 90 delaying publication does not affect the time taken by prices to reach a new level which is rapid under all regimes spreads differ across years but their size relates more closely to market volatility than to speed of publication there is therefore no gain in liquidity from delayed publication

the cost of institutional equity trades presented are an overview of the findings from the recent literature on the cost of u s equity trades for institutional investors and new evidence on trading costs from a large sample of institutional trades the findings discussed have important implications for policymakers and investors implicit trading costs are economically significant equity trading costs vary considerably and vary systematically with trade difficulty and order placement strategy and whether a trade price represents best execution depends on detailed data for the trade s entire order submission process especially information on pretrade decision variables such as the trading horizon

volume autocorrelation information and investor trading this study investigates whether the widely documented daily correlated trading volume of stocks is driven by individual investor trading institutional trading or both we find that at least 95 of nyse and amex stocks exhibit statistically significant positive serial correlation volume autocorrelation decreases with the level of institutional ownership of a stock we also show that the rate of arrivals of new information to the market contributes to the clustering of trades when there is high information flow to the market institutional trading generates a more pronounced effect on volume autocorrelation than individual investor trading our results are broadly consistent with the predictions of trading volume patterns suggested by most theoretical models of stock trading and by empirical research on investor trading

volume and turn of the year behavior abstract this paper studies the trading characteristics of listed companies by size and year end behavior there were no transactions on nearly 25 of the days for the smallest decile even at the turn of year which is an active trading period for small companies as a result of low levels of trading and the regulations governing exchange specialists transaction prices and quotations of small listed companies may require several days to fully reflect equilibrium price changes the data confirm the existence of a year end seasonal pattern in rates of return for small companies and suggest that there may be a seasonal pattern for large companies as well

cross border investing with tax arbitrage the case of german dividend tax credits german dividends typically carry a tax credit which makes the dividend worth 42 86 more to a taxable german shareholder than to a tax exempt or foreign shareholder this results in a penalty for foreign investors who buy and hold german dividend paying stocks i document that as a result of the credit the ex day drop exceeds the dividend by more than one half of the tax credit and show that futures and option prices embed more than one half of the tax credit the existence of the credit creates opportunities for cross border tax arbitrage in which foreign holders of german stock transfer the dividend to german shareholders and implies that it is tax efficient for foreign investors to hold derivatives rather than investing directly in german stocks the empirical findings are consistent with costly tax arbitrage activity by german investors who face tax risk due to antiarbitrage rules since dividend tax credits exist in many other countries the findings are potentially of broad interest

on the strategic behavior of large investors a mean variance portfolio approach abstract one key assumption of markowitz s model is that all traders act as price takers in this paper we extend this mean variance approach in a setting where large investors can move prices instead of having an individual optimization problem we find the investors nash equilibrium and redefine the efficient frontier in this new framework we also develop a simplified application of the general model with two assets and two investors to shed light on the potential strategic behavior of large and atomic investors our findings validate the claim that large investors enhance their portfolio performance in relation to perfect market conditions besides we show under which conditions atomic investors can benefit in relation to the standard setting even if they have not total influence on their eventual performance the two investors two assets setting allows us to quantify performance and do sensitivity analysis regarding investors market power risk tolerance and price elasticity of demand finally for a group of well known etfs we empirically show how price variations change depending on the volume traded we also explain how to set up and use our model with real market data

keynes on atomism and organicism this paper examines john maynard keynes s early unpublished paper miscellanea ethica and concludes that keynes developed an atomist view of economic agents based on the assumption that the individual mind is an organic unity the paper argues this view was part of keynes s subjectivist critique of the realist tenets of g e moore s principia ethica and that keynes retained this view of the agent in the treatise on probability the biography of f y edgeworth the critique of j tinbergen and the general theory the paper concludes that the recent literature arguing that keynes adopted an organicist view of agents in the economy lacks foundation copyright 1989 by royal economic society

institutional trades and intraday stock price behavior abstract this paper examines the price effect of institutional stock trading using a unique data set that reports the transactions large and small of 37 large institutional money management firms the direction of each trade and the identity of the management firm behind each trade are known although institutional trades are associated with some price pressure we find that the average effect is small there is also a marked asymmetry between the price impact of buys versus sells we relate our findings to various hypotheses on the elasticity of demand for stocks the cost of executing transactions and the determinants of market impact although market capitalization and relative trade size influence the market impact of a trade the dominant influence is the identity of the money manager behind the trade

ex dividend day trading who how and why evidence from the finnish market abstract this study examines the ex dividend day trading behavior of all investors in the finnish stock market consistent with dynamic dividend clientele theories investors with a preference for dividend income buy shares cum dividend and sell ex dividend the reverse is true for investors with the opposite preference investors also engage in overnight arbitrage earning on average a 2 overnight return on their invested capital trades at the investor level reveal that idiosyncratic risk is an important determinant in the choice of stock for short term ex day trading furthermore transaction costs and dividend yield jointly determine whether the volume of short term trading activity is nonzero