the timing of industry and firm earnings information in security prices a re evaluation abstract this paper re evaluates evidence in ayers and freeman ayers f freeman r 1997 market assessment of industry and firm earnings information journal of accounting and economics 24 205 218 suggesting that investors anticipate industry wide components of earnings earlier than firm specific components and that post earnings announcement drift following annual earnings announcements is due primarily to firm specific components of earnings our tests indicate that post announcement drift is entirely attributable to coefficient bias due to measurement errors in the use of realized earnings changes as proxies for unexpected earnings also coefficient differences in the market s anticipation of subsequent year industry and firm specific earnings become insignificant when we introduce suitable controls for non linearity in the return earnings relation

the changing time series properties of earnings cash flows and accruals has financial reporting become more conservative abstract this paper documents changes in the patterns of earnings cash flows and accruals over the last four decades in the absence of a generally accepted definition of conservatism a number of measures of reporting conservatism are identified and examined these measures rely on the accumulation of nonoperating accruals the timeliness of earnings with respect to bad and good news characteristics of the earnings distribution and the market to book ratio the patterns are consistent with an increase in conservative financial reporting over time the findings have implications for accounting standard setting regulation of financial information and financial statement analysis

quality competition with motivated providers and sluggish demand we study incentives for quality provision in markets where providers are motivated semi altruistic prices are regulated and firms are funded by a combination of block grants and unit prices competition is based on quality and demand adjusts sluggishly health or education are sectors in which the mentioned features are the rule we show that the presence of motivated providers makes dynamic competition tougher resulting in higher steady state levels of quality in the closed loop solution than in the benchmark open loop solution if the price is sufficiently high however this result is reversed if the price is sufficiently low and below unit costs sufficiently low prices also imply that a reduction in demand sluggishness will lead to lower steady state quality prices below unit costs will nevertheless be welfare optimal if the providers are sufficiently motivated

ingredients of famine analysis availability and entitlements famines often take place in situations of moderate to good food availability without any significant decline of food supply per head the paper presents an alternative approach to famines which does not concentrate on availability but on people s ability to command food through legal means available in the society including the use of production possibilities trade opportunities entitlements vis a vis the state etc the approach is explained focusing on exchange entitlement mappings fluctuations in which can lead to big shifts in the intergroup distribution of food command the approach is then applied to the bengal famine of 1943 the ethiopian famine in wollo in 1973 and the bangladesh famine in 1974 and some general conclusions are drawn about the nature and classes of famines

earnings performance and the incremental information content of cash flows from operations this paper investigates whether the incremental information content of cash flows from operations increases when earnings are transitory we suggest that when the valuation implications of earnings are limited by the presence of transitory items cash flows from operations disclosures may play a larger role as an additional value signal we measure transitory items using earnings change scaled by beginning of period price ali 1994 and the earnings to price ratio ou and penman 1989 and ali and zarowin 1992 our analysis suggests that the incremental information content of accounting earnings decreases and the incremental information content of cash flows from operations increases with a decrease in the permanence of earnings

an empirical assessment of the residual income valuation model abstract this paper provides an empirical assessment of the residual income valuation model proposed in ohlson ohlson j a 1995 earnings book values and dividends in security valuation contemporary accounting research 11 661 687 we point out that existing empirical research relying on ohlson s model is similar to past research relying explicitly on the dividend discounting model we establish that the key original empirical implications of ohlson s model stem from the information dynamics that link current information to future residual income our empirical results generally support ohlson s information dynamics however we find that our empirical implementation of ohlson s model provides only minor improvements over existing attempts to implement the dividend discounting model by capitalizing short term earnings forecasts in perpetuity

quality and competition in recent years the practitioner literature in operations management has seen a dramatic surge in articles on quality management it reflects the increased emphasis on quality by u s firms which has been attributed largely to increased competition faced by them the question of how quality is influenced by competitive intensity however has not received much attention either in the practitioner or the academic research literatures the notion of competitive intensity itself has not been defined precisely in this paper we develop formal models of oligopolistic competition to investigate whether equilibrium levels of quality increase as competition intensifies we consider three different competitive settings i asymmetric duopolistic competition where the dominant firm s intrinsic demand potential decreases ii a symmetric duopoly where the firms are precluded from cooperating in setting quality levels and iii symmetric oligopolistic competition where the number of firms increases we find that the relation between equilibrium quality and competitive intensity depends on what is understood by increased competition and in addition the relation is contingent on the values of parameters describing the cost and demand structure for the industry

information in prices about future earnings abstract stock return over a period reflects the market s revision in expectation of future earnings accounting earnings over the same period however have limited ability to reflect such revised expectations therefore returns anticipate earnings changes and the earnings response coefficient from a regression of returns on contemporaneous earnings changes is biased toward zero we reduce this bias by including leading period returns in price earnings regressions the resulting estimated earnings response coefficient magnitudes suggest that the capital market on average views earnings changes to be largely permanent this is consistent with the random walk time series property of annual earnings

the value relevance of intangibles the case of software capitalization the value relevance of intangibles the case of software capitalization author s david aboody and baruch lev source journal of accounting research vol 36 studies on enhancing the financial reporting model 1998 pp 161 191 published by blackwell publishing on behalf of accounting research center booth school of business university of chicago stable url http www jstor org stable 2491312 accessed 14 09 2010 16 12

market based empirical research in accounting a review interpretation and extension a decade and a half of the most concerted and ambitious research effort in accounting history is evaluated here it is the search into the relationship between publicly disclosed accounting information and the consequences of the use of this information by the major group of usersequity investors as such consequences are reflected in characteristics of common stocks traded in major exchanges this research effort known as market based accounting research mbar obtained its impetus from major developments in finance theory during the late 1950s and early 1960s these were the portfolio selection theory and its offspring the capital asset pricing model capm and the concept of informationally efficient capital markets ecm subsequent developments in information economics agency theory and optimal incentive signaling models were quickly incorporated into mbar while the impetus to this line of research came from other disciplines accounting was not only a beneficiary but also to a modest extent a benefactor mbar is relevant to the study of capital market efficiency the capm information economics and regulation this contribution distinguishes mbar from most accounting areas whose contributions to other disciplines are negligible in

earnings quality in uk private firms comparative loss recognition timeliness abstract uk private and public companies face substantially equivalent regulation on auditing accounting standards and taxes we hypothesize that private company financial reporting nevertheless is of lower quality due to different market demand regulation notwithstanding a large uk sample supports this hypothesis quality is operationalized using basu s 1997 time series measure of timely loss recognition and a new accruals based method the result is not affected by controls for size leverage industry membership and auditor size or by allowing endogenous listing choice the result enhances understanding of private companies which are predominant in the economy it also provides insight into the economics of accounting standards

changes versus levels in earnings as explanatory variables for returns some theoretical considerations this paper considers theoretical aspects of the specification of an earnings variable to explain contemporaneous returns the traditional approach in market based accounting research centers on changes in earnings deflated by beginning of period price as the benchmark explanatory variable for returns the reasons for using this variable appear to follow a three step argument first unexpected earnings determine the theoretically correct concept of the earnings variable second the change in earnings approximates unexpected earnings because current earnings approximate expected earnings i e the random walk hypothesis applies 1 third the beginning of period price deflates the earnings change variable to make it dimensionally consistent with returns 2 while this argument seems overly heuristic we are unaware of a generally acceptable analysis that provides a more compelling argument this lack of rigor has recently become an issue because

a dynamic model of differentiated oligopoly with capital accumulation abstract we consider a dynamic model of differentiated oligopoly with capital accumulation we prove that the model may converge to either a steady state replicating the optimum of the static problem or a steady state driven by capital accumulation alone in the latter case the same steady state equilibrium is observed under both cournot and bertrand competition as well as social planning journal of economic literature classifications numbers c73 l13

the information content of earnings and prices a simultaneous equations approach abstract the price earnings relation can be characterized as a system of simultaneous equations earnings and prices can behave as if they are both endogenously determined because they are jointly affected by information that is difficult to specify explicitly specification tests provide evidence that both earnings changes and price changes are endogenous the price and earnings coefficients increase from ols to joint estimation and under a restrictive set of assumptions provide increasingly similar estimates of the permanent component of earnings the evidence is consistent with the contention that a portion of the single equation bias can be mitigated via joint estimation

dynamic r d with spillovers competition vs cooperation abstract we investigate dynamic r d for process innovation in a cournot duopoly where firms may either undertake independent ventures or form a cartel for cost reducing r d investments by comparing the profit and welfare performances of the two settings in steady state we show that private and social incentives towards r d cooperation coincide for all admissible levels of the technological spillovers characterising innovative activity we also evaluate the whole history of the dynamic system along the transition to the steady state showing that the conflict between private and social incentives does not necessarily emerge

does competition among public schools benefit students and taxpayers tiebout choice among districts is the most powerful market force in american public education naive estimates of its effects are biased by endogenous district formation i derive instruments from the natural boundaries in a metropolitan area my results suggest that metropolitan areas with greater tiebout choice have more productive public schools and less private schooling little of the effect of tiebout choice works through its effect on household sorting this finding may be explained by another finding students are equally segregated by school in metropolitan areas with greater and lesser degrees of tiebout choice among districts

the information content of losses abstract this study hypothesizes that because shareholders have a liquidation option losses are not expected to perpetuate they are thus less informative than profits about the firm s future prospects the results are consistent with the hypothesis they also show that the documented increase in the earnings response coefficent as the cumulation period increases appears to be due exclusively to the effect of losses the liquidation option effect extends to profitable cases where earnings are low enough to make the option attractive alternating explanations for the low informativeness of losses such as mean reversal of earnings are not supported by the tests

management by the numbers a formal approach to deriving informational and distributional properties of unmanaged earnings we explore the theoretical relation between earnings and market returns as well as the properties of earnings frequency distributions under the assumption that managers use unbiased accounting information to sequentially decide on real options their firms have and report generated earnings truthfully with the market pricing the firm based on those reported earnings we generate benchmarks against which empirically observed earnings returns relations and aggregate earnings distributions can be evaluated this parsimonious model shows a coherent set of results reported losses are less persistent than reported gains decision making diminishes the s shaped market response to earnings and earnings relate to returns asymmetrically in the way documented by basu 1997 furthermore the implied frequency distribution of aggregate earnings is neither symmetric nor necessarily single peaked instead it may exhibit a kink at zero and look similar to the plots reported by burgstahler and dichev 1997 however within our model none of these phenomena are due to reporting noise bias or some undesirable strategic managerial behavior they are the natural consequences of using past earnings as the basis for value increasing managerial decision making that in turn generates the future earnings on which future decisions will be based

permanent versus transitory components of annual earnings and estimation error in earnings response coefficients abstract previous research has generally estimated unexpected earnings as the change relative to the previous year assuming that shocks to annual earnings are purely permanent in the presence of transitory components of annual earnings we predict that using earnings changes as a proxy for unexpected earnings causes earnings response coefficients to be understated and the estimation error to be negatively cross sectionally correlated with persistence the negative correlation causes the association between earnings response coefficients and persistence to be overstated we use the ima 1 1 model to capture transitory components of annual earnings and obtain results that are consistent with our predictions

financial reporting tax costs and book tax conformity abstract we investigate the role of book tax conformity in firms financial reporting activities using a unique set of publicly traded firms that were forced to switch for tax purposes from the cash method to the accrual method prior to the mandated change little trade off existed between tax planning and financial reporting goals for these firms after the change recognition criteria for tax and financial reporting purposes became more alike increasing the trade off between financial reporting and tax objectives our results suggest that required use of the accrual method for tax purposes causes firms to defer income for financial statement purposes

misspecification of capital asset pricing this study documents empirical anomalies which suggest that either the simple one period capital asset pricing model capm is misspecified or that capital markets are inefficient in particular portfolios based on firm size or earnings price e p ratios experience average returns systematically different from those predicted by the capm furthermore the abnormal returns persist for at least two years this persistence reduces the likelihood that these results are being generated by a market inefficiency rather the evidence seems to indicate that the equilibrium pricing model is misspecified however the data also reveals that an e p effect does not emerge after returns are controlled for the firm size effect the firm size effect largely subsumes the e p effect thus while the e p anomaly and value anomaly exist when each variable is considered separately the two anomalies seem to be related to the same set of missing factors and these factors appear to be more closely associated with firm size than e p ratios

dynamic duopoly with adjustment costs a differential game approach abstract this paper develops a differential game model of duopoly in which firms incur costs associated with how fast they change their level of output the analysis solves for a subgame perfect equilibrium to the model in which the steady state level of output lies strictly between the static cournot and perfect competition solutions furthermore we demonstrate that the limit game in which the speed of adjustment parameter approaches zero does not tend toward the static cournot equilibrium

oligopoly games with local monopolistic approximation we propose an oligopoly game where quantity setting firms have incomplete information about the demand function at each time step they solve a profit maximization problem assuming a linear demand function and ignoring the effects of the competitors outputs despite such a rough approximation that we call local monopolistic approximation lma the repeated game may converge at a nash equilibrium of the game played under the assumption of full information an explicit form of the dynamical system that describes the time evolution of oligopoly games with lma is given for arbitrary differentiable demand functions provided that the cost functions are linear or quadratic in the case of isoelastic demand we show that the game based on lma always converges to a nash equilibrium this result compared with best reply dynamics shows that in this particular case less information implies more stability

the effects of accounting diversity evidence from the european union in this paper we investigate the financial statement effects of differences in accounting measurement practice in france germany and the united kingdom u k we find evidence of significant differences in financial ratios and the stock market valuation of accounting data the differences do not appear to be explained by the composition of the sample or by macroeconomic factors they are predictable given crosscountry differences in reporting philosophies and they are present for the components of net income which one would expect based on differences in accounting practice the differences across countries appear largely unaffected by legislation enacted in response to the european union eu directives which were intended to create an integrated set of reporting standards to serve as a basis for cross listing and facilitate cross border investment 1 this research provides descriptive evidence from a capital markets perspective on how cross country differences in measurement practices affect the comparability of the resulting accounting data europe provides a relevant context to examine this issue for several reasons first

accounting for changing prices the value relevance of historical cost price level and replacement cost accounting in mexico this paper investigates the value relevance of historical cost price level and replacement cost accounting using a sample of mexican firms from 1989 to 1995 it contributes to prior research by distinguishing between two distinct aspects of changing prices 1 the change in the general price level and 2 the change in the value of specific non monetary assets i select mexico to examine because it is unique in requiring and disclosing separately price level and replacement cost adjustments a sample of mexican firms also addresses a key reason cited for mixed results in previous assessments of the usefulness of price level and replacement cost accounting using united states data the effects of inflation are too weak to detect high rates of inflation in mexico ranging between 7 and 52 during the sample period mitigate that potential problem results indicate that replacement cost adjustments are relatively and incrementally relevant beyond historical cost and price level measures while price level adjustments are incrementally value relevant beyond historical measures

is comprehensive income superior to net income as a measure of firm performance abstract with the exception of financial firms we find no evidence that comprehensive income is more strongly associated with returns market value or better predicts future cash flows income than net income moreover the only component of comprehensive income that improves the association between income and returns is the marketable securities adjustment our results do not support the claim that comprehensive income is a better measure of firm performance than net income our results also raise questions about the appropriateness of items included in sfas 130 comprehensive income as well as the need for mandating uniform comprehensive income disclosures for all industries

the valuation of the foreign income of us multinational firms a growth opportunities perspective we demonstrate the value relevance of foreign earnings for us multinational firms by examining the associations between annual abnormal stock performance and changes in firms domestic and foreign incomes for 2570 tirm year observations between 1985 and 1993 both foreign and domestic earnings changes have significant positive associations with annual excess return measures however the association coefficient on foreign income is significantly larger than the association coefficient on domestic income we demonstrate this larger association coefficient for foreign income is consistent with differences in growth opportunities between domestic and foreign operations

choice competition and pupil achievement choice and competition in education have recently found growing support from both policy makers and academics yet evidence on the actual benefits of market orientated reforms is at best mixed moreover although the economic rationale for choice and competition is clear in existing work there is rarely an attempt to distinguish between the two concepts in this paper we study whether pupils in primary schools in england with a wider range of school choices achieve better academic outcomes than those whose choice is more limited and whether primary schools facing more competition perform better than those in a more monopolistic situation in simple least squares regression models we find little evidence of a link between choice and achievement but uncover a small positive association between competition and school performance yet this could be related to endogenous school location or pupil sorting in fact an instrumental variable strategy based on discontinuities generated by admissions district boundaries suggests that the performance gains from greater school competition are limited only when we restrict our attention to voluntary aided schools which have more freedom in managing their governance and admission practices do we find some evidence of a positive causal link between competition and pupil achievement jel i20 h70 r5

strategic incentives in dynamic duopoly abstract we compare steady states of open loop and locally stable markov perfect equilibria mpe in a general symmetric differential game duopoly model with costs of adjustment strategic incentives at the mpe depend on whether an increase in the state variable of a firm hurts or helps the rival and on whether at the mpe there is intertemporal strategic substitutability or complementarity a full characterization is provided in the linear quadratic case then with price competition and costly production adjustment static strategic complementarity turns into intertemporal strategic substitutability and the mpe steady state outcome is more competitive than static bertrand competition

earnings as an explanatory variable for returns in this paper we investigate whether the level of earnings divided by price at the beginning of the stock return period is relevant for evaluating earnings returns associations the primary model motivating this research relies on the idea that book value owners equity and market value are both stock variables indicating the wealth of the firm s equity holders the related flow variables after adjusting for dividends are respectively earnings divided by price at the beginning of the return period a p 1 and market returns it then follows that earnings divided by beginning of period price should be associated with stock returns although models based on a relation between market value and book value are used occasionally in the accounting research literature see for example landsman 1986 harris and ohlson 1987 and barth

firm size and the information content of prices with respect to earnings abstract beaver lambert and morse 1980 suggest that prices may be useful in forecasting future earnings we explore the information content of prices with respect to earnings by focusing on firm size and its relation to the predictive accuracy of price based earnings forecasts firm size proxies for the amount of information and for the number of traders and professional analysts processing the available information about an enterprise our empirical results are consistent with the hypothesis that price based earnings will outperform univariate time series forecasts by a greater margin for larger firms than for smaller firms

does competition between hospitals improve the quality of care hospital death rates and the nhs internal market payer driven competition has been widely advocated as a means of increasing efficiency in health care markets the 1990s reforms to the uk health service followed this path we examine whether competition led to better outcomes for patients as measured by death rates after treatment following heart attacks using data that until 1999 was not publicly available in any form on hospital level death rates we find that the relationship between competition and quality of care appears to be negative greater competition is associated with higher death rates controlling for patient mix and other observed characteristics of the hospital and the catchment area for its patients however the estimated impact of competition is small jel classification i1 l8 h4

optimal dynamic volume based price regulation abstract we consider a model of optimal price regulation in markets where demand is sluggish and asymmetric providers compete on quality using a spatial model which is suitable to investigate the health care and education sector we analyse within a dynamic set up the scope for price premiums or penalties on volume under the assumption of symmetric cost information we show that the socially optimal time path of quality provision off the steady state can be replicated by a simple dynamic pricing rule where the dynamic part of the rule is ex ante non discriminatory in the sense that the price premium or penalty on volume is common across providers despite their differing production costs whether the price schedule involves a penalty or a premium on volume relates to two concerns regarding production costs and consumer benefits which go in opposite directions price adjustments over time occur only through the price penalty or premium not time directly which highlights the simplicity and thus applicability of this regulation scheme

on cross sectional analysis in accounting research abstract this paper examines cross sectional analysis procedures common to many market based accounting research papers both the economic and econometric properties of levels and returns studies are discussed topics covered include the relations between the accounting studies and cash flow valuation models the role of expectations of accounting variables deflators spurious inference risk adjustment and its relation to growth size and leverage residual dependence dependence among explanatory variables and the effect of scale differences across firms major conclusions are that market value is the correct deflator in returns studies and that levels and returns studies are economically but not econometrically equivalent

a dynamic model of quality competition with endogenous prices abstract we develop a dynamic model of price and quality competition in order to analyze the effects of competition on quality provision and to which extent an unregulated market is able to provide a socially optimal quality level our model combines a differential game approach with a hotelling spatial competition framework and our analysis applies in particular to industries such as long term care health care child care and education if providers nursing homes hospitals schools nurseries use closed loop decision rules which imply strategic interaction over time we show that although increased competition leads to higher quality in the steady state quality provision is nevertheless lower than under open loop rules and also suboptimally low from a welfare perspective thus our analysis identifies dynamic strategic interaction between competing providers as a potential source of inefficiency in quality provision

fair value disclosures by bank holding companies abstract this paper examines the value relevance of fair value data disclosed under sfas 107 by banks for 1992 and 1993 collectively the evidence suggests differences between fair and book values of financial instruments are associated with market to book ratios however fair value disclosures for financial instruments other than securities are value relevant only in limited settings in addition only in 1992 are fair value variables associated with market to book ratios after incorporating existing historical cost information further analysis suggests the weaker 1993 results are not necessarily due to increased measurement error in fair value numbers

an evolutionary cournot model with limited market knowledge abstract in this paper we analyze a dynamic game of cournot competition with heterogeneous firms choosing between two different adaptive behavioral rules in deciding output strategies the underlying oligopoly structure is standard using a constant return to scale technology n firms produce homogeneous goods which are sold in a market characterized by constant price elasticity in this setup we assume that a fraction of firms employs a quite rough rule of thumb the so called local monopolistic approximation lma whereas the complementary fraction plays best reply br a more demanding strategy in terms of information and computation requirements the model is first considered with exogenously fixed fractions of firms in the two complementary groups then it is generalized by considering an endogenous evolutionary switching process between the two behavioral strategies based on profit driven replicator dynamics the role of the number of firms information costs and inertia or anchoring attitude in production decisions is analyzed as well as the influence in the evolutionary process of random noise in the demand function and memory of past profits global properties of the oligopoly with evolutionary pressure between behavioral rules are discussed with particular regard to cases in which the nash equilibrium is unstable

assessing competition in hospital care markets the importance of accounting for quality differentiation quality differentiation is especially important in the hospital industry where the choices of medicare patients are unaffected by prices unlike previous studies that use geographic market concentration to estimate hospital competitiveness this article emphasizes the importance of quality differentiation in this spatially differentiated market i estimate a random coefficients discrete choice model that predicts patient flow to different hospitals and find that demand responses to both distance and quality are substantial the estimates suggest that patients do not substitute toward alternative hospitals in proportion to current market shares implying that geographic market concentration is an inappropriate measure of hospital competitiveness

experimental design in tests of linear factor models for various reasons cross sectional tests of linear factor models have employed the returns on portfolios of assets as opposed to individual securities there is a good deal of flexibility in how one goes about choosing which portfolios to examine the experimental design this article points out that some choices can lead to collinearity among factor loadings with potentially harmful consequences for power a diagnostic procedure for detecting collinearity is discussed and several illustrations of the procedure on existing tests of linear factor models are used to illustrate their value to the researcher finally a series of experiments is carried out to validate the diagnostics and to confirm their assessment of the experimental design in the models examined

optimal price setting in pay for performance schemes in health care abstract the increased availability of process measures implies that the quality of health care is in some areas de facto verifiable optimal price setting for verifiable dimensions of quality is well described in the theoretical literature on incentive design we seek to narrow the large gap that remains between actual price setting behaviour in pay for performance schemes and the incentive design literature we present a stylised model for hospital price setting for process measures of quality and show that optimal hospital prices should reflect the marginal benefit of the expected health gains the weight given to patients benefit relative to profits and the opportunity cost of public funds based on published estimates we derive the optimal prices for three measures of quality that have been incentivised in the english national health service since april 2010 treatment in an acute stroke unit rapid brain imaging and thrombolysis with alteplase we then compare the optimal prices with the actual prices offered to hospitals in england under the best practice tariffs scheme for emergency stroke care

on the dynamic efficiency of bertrand and cournot equilibria abstract this paper compares bertrand and cournot equilibria in a differentiated duopoly with r d research and development competition it shows that cournot competition induces more r d effort than bertrand competition however the price is lower and output is larger in bertrand than in cournot competition furthermore the bertrand equilibrium is more efficient than the cournot equilibrium if either r d productivity is low or spillovers are weak or products are very different if r d productivity is high spillovers are strong and goods are close substitutes then the bertrand equilibrium islessefficient than the cournot equilibrium journal of economic literatureclassification number l13

why have measures of earnings quality changed over time the properties of earnings have changed dramatically over the past 40 years prior studies interpret this trend as a decline in earnings quality but disagree on whether it results from changes in the real economy or changes in accounting standards i find that each new cohort of listed firms exhibits lower earnings quality than its predecessors mainly because of higher intangible intensity i conclude that the trend of decline in earnings quality is due more to changes in the sample of firms than to changes in generally accepted accounting principles gaap or in the earnings quality of previously listed firms

insider trading earnings changes and stock prices this study empirically examines the relation between reportable insider trading and the information captured by annual unexpected earnings for a large sample of firms spanning a ten year period 1978 87 each observation is assigned to one of four groups based on the direction of net insider trading buy sell and the sign of unexpected earnings for each of these groups 15 month cumulative abnormal returns are regressed on annual unexpected earnings the slope coefficient is the largest for the group where insiders are net purchasers and the sign of unexpected earnings is positive this is consistent with an inference that insider buying interactively confirms the favorable information captured by positive unexpected earnings and this interaction reduces the noise in unexpected earnings the result with regard to the unfavorable information captured by the group with insider selling and negative unexpected earnings is similar but less pronounced the analysis also suggests that insider trading conveys information not fully captured by the year s earnings

is hospital competition socially wasteful we study the consequences of hospital competition for medicare beneficiaries heart attack care from 1985 to 1994 we examine how relatively exogenous determinants of hospital choice such as travel distances influence the competitiveness of hospital markets and how hospital competition interacts with the influence of managed care organizations to affect the key determinants of social welfare expenditures on treatment and patient health outcomes in the 1980s the welfare effects of competition were ambiguous but in the 1990s competition unambiguously improves social welfare increasing hmo enrollment over the sample period partially explains the dramatic change in the impact of hospital competition

on the efficiency of bertrand and cournot equilibria with product differentation in a differentiated products setting with n varieties it is shown under certain regularity conditions that if the demand structure is symmetric and bertrand and cournot equilibria are unique then prices and profits are larger and quantities smaller in cournot than in bertrand competition and as n grows both equilibria converge to the efficient outcome at a rate of at least 1n if bertrand reaction functions slope upwards and are continuous then even with an asymmetric demand structure given any cournot equilibrium price vector one can find a bertrand equilibrium with lower prices in particular if the bertrand equilibrium is unique then it has lower prices than any cournot equilibrium

the value relevance of german accounting measures an empirical analysis in this study we compare the value relevance of accounting measures for u s and german firms matched on industry and firm size and evaluate the incremental informativeness of earnings adjusted on the basis of a formula proposed by analysts german companies have been at the center of a controversy between the new york stock exchange nyse and the securities and exchange commission sec the controversy arises from the sec s insistence that to list on a u s stock exchange non u s companies must reconcile earnings and shareholders equity to u s generally accepted accounting practice u s gaap fuerbringer 1992 and jarrell 1992 41 the nyse s concern has been that

why do all the flights leave at 8 am competition and departure time differentiation in airline markets abstract theoretical models of spatial product differentiation indicate that firms face two opposing incentives 1 minimize differentiation in order to steal customers from competitors and 2 maximize differentiation in order to reduce price competition using data on u s airline departure times from 1975 when fares were regulated and 1986 when fares were not regulated we empirically estimate the effect of competition on differentiation we find a negative relationship in both periods in 1986 however reductions in exogenous scheduling constraints increase differentiation implying that firms may be differentiating their products where possible to reduce price competition this effect is not apparent in the 1975 data

dividend taxation in firm valuation new evidence in this paper we develop a residual income model showing how taxes on dividends affect the relative valuation of retained earnings versus contributed equity as well as the value of expected future earnings tests of predictions from our model for a sample of compustat firms from 197594 suggest that overall firm value and the relative valuation weights investors assign to retained earnings contributed equity and current earnings all critically depend on dividend taxes the findings also suggest that investors take a proprietary perspective in valuation and impute an unrecorded shareholder level tax liability on retained earnings the u s tax system subjects retained earnings to dividend taxes upon distribution to shareholders while contributed equity is returned to shareholders as a nontaxable return of capital from the shareholder s proprietary perspective therefore retained earnings should be valued on

asymmetric timeliness of earnings market to book and conservatism in financial reporting abstract using an accounting conservatism theory that reflects accounting s role in practice we investigate the relation between two extensively used measures of conservatism asymmetric timeliness of earnings and the market to book ratio mtb we predict and observe that when asymmetric timeliness is measured cumulatively over long periods its relation with end of period mtb is positive when asymmetric timeliness is measured over short periods its dependence on beginning of period composition of equity value ev is responsible for its negative association with mtb further asymmetric timeliness appears to measure conservatism more efficiently when it is estimated cumulatively over multiple periods

the inadequacy of the entitlement approach to explain and remedy famines 1988 the inadequacy of the entitlement approach to explain and remedy famines the journal of development studies vol 25 no 1 pp 112 116

intertemporal coordination with delay options abstract this paper studies equilibrium selection in intertemporal coordination problems with delay options the risk dominant action of the underlying one shot game is selected when frictions are arbitrarily small larger frictions introduce real option effects in the model and inhibit coordination

the association between stock returns and foreign gaap earnings versus earnings adjusted to u s gaap abstract this study examines the association between stock returns and foreign gaap earnings versus earnings adjusted to u s gaap using a sample of foreign firms with common stock or american depositary receipt adr traded in u s exchanges we compare the returns earnings relations between u s and foreign gaap based earnings results based on the ja test indicate that earnings based on foreign gaap are more closely associated with contemporaneous stock returns than earnings reconciled to u s gaap we find evidence that our results may be driven by institutional factors which are specific to foreign markets

politics economics agriculture and famines the chinese case abstract this paper is a study of the littleknown chinese famine of 1959 1961 which took place during the great leap forward this famine was caused by the revolutionary politics of the time which failed agriculture and killed at least 25 million people the crucial point is that the famine was most cruel in the cities where workers incomes were much higher than those of their counterparts in the countryside

international differences in the timeliness conservatism and classification of earnings in this paper we analyze differences in the timeliness of income recognition between the u s and u k gaap financial reporting regimes building on previous work in the area we focus on the links between current reported earnings and current and past changes in market value in the light of basu 1997 we present a formal model in which the response of reported earnings to changes in market value varies according to whether the value change is good news or bad this model yields a number of insights with regard to the definition and measurement of earnings conservatism we also report evidence indicating that controlling for cross jurisdictional classification differences affects comparisons of earnings timeliness and earnings conservatism specifically we find that apparent differences in conservatism between the u s and u k accounting regimes are sensitive to the inclusion or exclusion of extraordinary items in u k accounting earnings recent research documents significant variation in the information content of earnings across international gaap regimes e g alford et al tlancaster university tuniversity of manchester the research support of the eco

does eva beat earnings evidence on associations with stock returns and firm values this study tests assertions that economic value added eva is more highly associated with stock returns and firm values than accrual earnings and evaluates which components of eva if any contribute to these associations relative information content tests reveal earnings to be more highly associated with returns and firm values than eva residual income or cash flow from operations incremental tests suggest that eva components add only marginally to information content beyond earnings considered together these results do not support claims that eva dominates earnings in relative information content and suggest rather that earnings generally outperforms eva

endogenous quality choice price vs quantity competition two versions of a vertical product differentiation model one with fixed and the other with variable costs of quality are analyzed to study how the hypotheses of price versus quantity competition affect equilibrium solutions product differentiation arises under all the scenarios considered contrasting previous findings of symmetric quality choices under cournot behavior however to relax harsher market competition firms differentiate more under bertrand than under cournot a simple welfare measure also indicates that the economy is better off when firms compete on prices with fixed costs of quality not only consumer but also producer surplus is higher under price competition copyright 1993 by blackwell publishing ltd

pitfalls in cross section studies with integrated regressors a survey and new developments in cross section studies if the dependent variable is i 0 but the regressor is i 1 the true slope must be zero in the resulting unbalanced regression a spuriously significant relationship ma

econometrics of the basu asymmetric timeliness coefficient and accounting conservatism a substantial literature investigates conditional conservatism defined as asymmetric accounting recognition of economic shocks news and how it depends on various market political and institutional variables studies typically assume the basu 1997 asymmetric timeliness coefficient the incremental slope on negative returns in a piecewise linear regression of accounting income on stock returns is a valid conditional conservatism measure we analyze the measure s validity in the context of a model with accounting income incorporating different types of information with different lags and with noise we demonstrate that the asymmetric timeliness coefficient varies with firm characteristics affecting their information environments such as the length of the firm s operating and investment cycles and its degree of diversification we particularly examine one characteristic the extent to which unbooked information such as revised expectations about rents and growth options is independent of other information and discuss the conditions under which a proxy for this characteristic is the market to book ratio we also conclude that much criticism of the basu regression misconstrues researchers objectives

capital market effects of u s canada gaap differences canadian firms that list securities on u s stock exchanges are generally required to provide a reconciliation of reported income measured using canadian generally accepted accounting principles gaap to reported earnings measured using u s gaap this paper examines both the magnitudes and the information content of the reported reconciliations between canadiangaap income and u s gaap income two recent studies of cross country gaap differences do not address u s canada differences because of perceived similarities between gaap in the two countries amir harris and venuti 1993 and mcqueen 1993 if u s canada gaap differences are in fact unimportant then no further examination is warranted professional bodies however are

relative valuation roles of equity book value and net income as a function of financial health abstract this study tests predictions that pricing multiples on and incremental explanatory power of equity book value net income increase decrease as financial health decreases tests using a sample of 396 bankrupt firms and tests using a larger pooled sample both yield inferences consistent with predictions findings are robust to inclusion of controls for industry size return on equity and volatility of equity returns equity book value and net income multiples and incremental explanatory power vary predictably across three illustrative industries selected based on the likely extent of unrecognized intangible assets

on the markovian efficiency of bertrand and cournot equilibria we characterize and compare closed loop feedback price and quantity strategies within a full fledged dynamic model of oligopolistic competition in which production requires exploitation of a renewable productive asset unlike previous papers on the strategic exploitation of productive assets we allow for imperfect product substitutability which enables us to deal with price competition we show that the traditional result that the bertrand equilibrium is more efficient than the cournot equilibrium does not necessarily hold in a markovian environment either in the short run or at the stationary equilibrium or using the discounted sum of welfare as a criterion for relative efficiency

initial evidence on the role of accounting earnings in the bond market we document that 1 the incidence of bond trade increases during the days surrounding earnings announcements 2 there is a bond price reaction to the announcement of earnings and 3 there is a positive association between annual bond returns and both annual changes in earnings and annual analysts forecast errors all of these effects are larger when earnings convey bad news or when the underlying bond is more risky taken together our results suggest that the nonlinear payoff structure of bond securities affects the role of accounting earnings in the bond market

competition in a duopoly with sticky price and advertising abstract this paper develops a differential duopolistic game where price is sticky and firms can invest in market enlarging promotional activities which have a public good nature one finding indicates that advertising and not output as in fershtman and kamien econometrica 55 1987 1151 1164 is responsible for the higher stationary price found in the open loop equilibrium relative to the linear feedback one that is free riding is more intense when firms play linear markov feedback strategies however the collusive outcome can be approximated and opportunism eliminated if firms can engage in preplay negotiations where they select a nonlinear markov perfect strategy for output and advertising achieving the collusive outcome requires as in the folk theorem for infinitely repeated games the discount rate to be sufficiently small

accounting for the impairment of long lived assets evidence from the petroleum industry abstract we investigate write downs of assets of oil and gas firms due to the application of the sec full cost ceiling test during the period of the largest decline in oil and gas prices since this test was mandated the correlation between the write down amounts and contemporaneous returns is statistically significant but it is lower than the correlation with lagged returns this and other evidence suggests that although the market perceived that some of the decline in asset value occurred in the quarter in which the write down was recorded much of the share market price adjustment due to this decline occurred earlier

competition and quality in health care markets a differential game approach we investigate the effect of competition on quality in health care markets with regulated prices taking a differential game approach in which quality is a stock variable using a hotelling framework we derive the open loop solution health care providers set the optimal investment plan at the initial period and the feedback closed loop solution providers move investments in response to the dynamics of the states under the closed loop solution competition is more intense in the sense that providers observe quality in each period and base their investment on this information if the marginal provision cost is constant the open loop and closed loop solutions coincide and the results are similar to the ones obtained by static models if the marginal provision cost is increasing investment and quality are lower in the closed loop solution when competition is more intense in this case static models tend to exaggerate the positive effect of competition on quality