testing for asymmetric information in insurance markets the first goal of this paper is to provide a simple and general test of the presence of asymmetric information in contractual relationships within a competitive context we also argue that insurance data are particularly well suited to such empirical investigations to illustrate this claim we use data on contracts and accidents to investigate the extent of asymmetric information in the french market for automobile insurance using various parametric and nonparametric methods we find no evidence for the presence of asymmetric information in this market

an earnings prediction approach to examining intercompany information transfers abstract we assess potential information transfers by examining the association between the earnings announcements of early and late announcers in an industry our earnings prediction models are statistically significant much more frequently than would be expected by chance the models suggest potential positive information transfers on average but there is substantial cross industry variation in the strength of this relation we find that the greatest price reactions by nonannouncers to same industry earnings announcements occur in industries with the greatest earnings comovement

empirical implications of alternative models of firm dynamics abstract this paper considers two models of firm behavior that allow for heterogeneity among firms idiosyncratic or firm specific sources of uncertainty and discrete outcomes exit and or entry both the characteristics of firm level panel data sets and the nature of the questions we characteristically ask of them imply that models with these features are likely to underlie most detailed empirical work on microdata sets the models we consider are a bayesian learning model due to jovanovic 20 and a model of research and exploration due to ericson and pakes 11 the paper provides a simple set of empirical procedures to help determine which if either of these two models might be appropriate for alternative data sets we conclude by checking for the implications of the two models on an eight year panel of wisconsin firms the results indicate that one model is consistent with the data on manufacturing firms while the other is consistent with the data on retail trade journal of economic literature classification numbers c52 l60 l80

relating inertia and experience in technology markets an analysis of households personal computer choices this article empirically analyses how households pc purchasing behaviours change with market experience we find that households generally exhibit inertia in their pc purchases the level of inertia is increasing as a function of experience on the pc market and for households switching brands the likelihood of buying a lesser known brand increases with experience regardless of the brand of the previous purchase these findings are consistent with the predictions of a simple learning model and extend our understanding of how market experience affects purchasing behaviour to an important technology product with implications that may apply to other similar products

cast demographics unobserved segments and heterogeneous switching costs in a television viewing choice model abstract an accurate television viewing choice model is an important tool for television executives and advertisers the authors present a new viewing choice model which differs from the traditional rust alpert model in three ways 1 it introduces a new show characteristic the demographic characteristics of a show s cast 2 it allows the preferences over the traditional show categories to be a function of both observable and unobservable individual characteristics and 3 it allows the cost of switching among the viewing alternatives to vary across show types and individual characteristics cross validated predictive testing shows that this model fits the data better than the rust alpert model does furthermore the authors demonstrate that network executives can improve ratings by using this model the authors predict that by following their scheduling strategies in particular by broadcasting comedies after 10 00 p m abc cbs and nbc could have increased their average ratings by 12 9 7 5

dynamic price competition in auto insurance brokerage we analyze brazilian data on auto insurance and document that a about 20 of policies are sold without brokerage commission b over 40 are sold at the highest fee allowed and c the remaining contracts are associated with a spread out distribution of fees static models cannot rationalize these findings we develop a dynamic model of price competition with search and switching costs that reproduces them we use the equilibrium structure to estimate the model parameters and infer the brokers expected earnings the frequency that insurees switch brokers and the counterfactual effects of a price ceiling policy

information trading volume and international stock return comovements evidence from cross listed stocks we investigate the joint dynamics of returns and trading volume of 556 foreign stocks cross listed on u s markets heterogeneous agent trading models rationalize how trading volume reflects the quality of traders information signals and how it helps to disentangle whether returns are associated with portfolio rebalancing trades or information motivated trades based on these models we hypothesize that returns in the home u s market on high volume days are more likely to continue to spill over into the u s home market for those cross listed stocks subject to the risk of greater informed trading our empirical evidence provides support for these predictions which confirms the link between information trading volume and international stock return comovements that has eluded previous empirical investigations

the earnings announcement premium around the globe abstract u s stocks have been shown to earn higher returns during earnings announcement months than during non announcement months we document that this earnings announcement premium exists across the globe moreover it is not isolated to a few countries of the 20 countries with enough data to conduct a within country analysis nine exhibit a significantly positive premium a cross country analysis finds that the premium is strongest in countries with the greatest increase in idiosyncratic volatility around the time of their firms earnings announcements suggesting that uncertainty over the earnings information to be disclosed is a primary driver of the global announcement premium

contagious speculation and a cure for cancer a nonevent that made stock prices soar a sunday new york times article on a potential development of new cancer curing drugs caused entremed s stock price to rise from 12 063 at the friday close to open at 85 and close near 52 on monday it closed above 30 in the three following weeks the enthusiasm spilled over to other biotechnology stocks the potential breakthrough in cancer research already had been reported however in the journal nature and in various popular newspapers including the times more than five months earlier thus enthusiastic public attention induced a permanent rise in share prices even though no genuinely new information had been presented a central tenet of f inancial economics is that an asset should trade at the risk adjusted present value of its expected future cash f lows these expected future cash f lows exist in people s minds and do not normally lend themselves to direct observation an equilibrium price in a frictionless market does not tolerate disagreements among market participants if some people deem the price too low they will buy the asset if others think it is too high they will sell it short if necessary although the efficient markets hypothesis predicts that price changes are unpredictable it associates them with changes in traders beliefs about future cash f lows or the appropriate discount rate beliefs change with the arrival of new information thus in hindsight at least we should be able to ascribe price changes to the arrival of specific new information we examine this view in the context of a series of news reports in the media pertaining to entremed enmd a biotechnology company and other members of its sector the sunday may 3 1998 edition of the new york times reports on a recent breakthrough in cancer research and mentions enmd a company with licensing rights to the breakthrough kolata 1998 the story s impact on the stock prices was immediate huge and to a large extent permanent the new news content of the times story was nil though the substance of the story had been published as a scientific piece in nature boehm et al 1997 and in the popular press including the times itself wade 1997 more than five months earlier in november 1997

inertia and variety seeking in a model of brand purchase timing previous research on state dependence indicates that a brand s purchase probabilities vary over time and depend on the levels of inertia and variety seeking and on the identity of the previously purchased brand brand choice probabilities obtained from models such as the logit and the probit are however fixed over time conditional on the previous brand purchased and on the levels of marketing variables consequently state dependence has largely been studied as a time invariant phenomenon in brand choice models with the levels of inertia and variety seeking assumed to be constant over time to account for the time varying nature of state dependence would require a model in which brand switching probabilities depend upon interpurchase times one modeling framework that can account for this dependence is based on the hazard function approach the proposed approach works as follows all other factors being equal an inertial household purchasing a brand on a particular occasion is most likely to repurchase that brand on the next occasion if the household switches it will be to a brand located perceptually close in attribute space to the previously purchased brand in other words an inertial household has the highest switching hazard for the same origin and destination brands with a progressively lower hazard rate for brands perceptually located farther and farther away from the origin brand the amount by which the hazard is lowered depends upon the perceptual distance and the inertia level of the household on the other hand if the household is variety seeking the most likely brand purchased would be a brand located farthest away from the previously purchased brand in attribute space in other words the hazard rate of repurchase is the lowest with the rate increasing with the distance of the destination brand from the origin brand and the level of that household s variety seeking tendency the effects of inertia and variety seeking are therefore incorporated at the attribute level into a brand purchase timing model in doing so we attempt to provide greater insight into the nature of state dependence in models of purchase timing our model and estimation procedure will enable us to distinguish between households that are inertial and those that are variety prone in addition to accounting for state dependence the model also accounts for the effects of unobserved heterogeneity among households in their brand preferences and in their sensitivities to marketing activities a majority of studies in marketing using the hazard function approach to investigate purchase timing have not accounted for heterogeneity in marketing mix effects the study integrates recent methods that incorporate the effects of inertia and variety seeking in brand choice models with a semi markov model of purchase timing and brand switching the proposed model enables us to 1 infer market structure via a perceptual map for the sample households and 2 investigate implications for the introduction of a line extension we provide empirical applications of the proposed method using three different household level scanner panel data sets we find that differing levels of inertia and variety seeking characterize the three data sets the findings are consistent with prior beliefs regarding these categories in addition our results indicate that the nature of interbrand purchase timing behavior depends upon the extent of inertia or variety seeking in the data we are also able to characterize the structure of the three product markets studied this provides implications for interbrand rivalry in the market further we demonstrate how the model and results can be used to predict the location of a line extension in the perceptual space of households finally we obtain implications for the timing of brand promotions

identifying the hand of past distinguishing state dependence from heterogeneity a basic problem in social science is to ascertain the importance of initial endowments on subsequent outcomes of a dynamic process interest in this topic centers on two distinct issues a do initial endowments have a temporally persistent effect on outcomes i e is there heterogeneity b are the effects of initial endowments attenuated or accentuated by subsequent experiences of the process being studied or by related processes i e is there state dependence these two questions show up in a variety of contexts 1 the importance of family background on a person s subsequent education and earnings is a hotly debated topic do market or nonmarket mechanisms reinforce or diminish initial endowments 2 the incidence of criminal activity is concentrated among a small population of repeated offenders are certain persons prone to criminality or does crime breed crime 3 are persons who experience unemployment more likely to experience future unemployment due to loss of work experience or market stigma 4 does early entry into an industry confer an advantage of incumbency or does it merely proxy the basic managerial and innovative ability of early entrants many formal models of state dependent processes or processes with persistent effects of initial conditions have been formulated invariance of steady states to initial endowments was viewed as a desirable feature of an economic model in the 1960 s and 1970 s path dependent synergism and nonergodicity are fashionable features of models today is the choice between models with long run dependence on initial conditions and those without solely a matter of intellectual esthetics can data discriminate between these two classes of models how many economically extraneous statistical regularity conditions have to be imposed in order to distinguish between these models how many and what kind of maintained assumptions are required in order to let the data speak on these important questions in this paper i focus on one nonergodic model that receives much attention in the literature the model of duration dependence and heterogeneity discussed by herbert silcock 1954 and also examined by tony lancaster 1979 chris elbers and geert ridder 1982 myself and burton singer 1984 and myself and bo honore 1989

corporate social responsibility and media coverage abstract in this study we examine whether firms that act more socially responsible receive more favorable media coverage and we consider whether firms use csr to actively manage their media image we focus on all news stories about a firm not just those that report on specific csr initiatives and find that more socially responsible firms receive more favorable news reportage overall i e they have a more positive media image these findings are robust after controlling for potential endogeneity further consistent with firms actively managing their media image we find a stronger relation between csr and media favorability when incentives to improve a firm s media image are high e g among firms in sin industries during periods of low investor sentiment and prior to seasoned equity offerings finally we find that for firms that demonstrate superior social responsibility and receive more favorable news reporting there is a significant interaction between social responsibility and media favorability that increases decreases a firm s equity valuation cost of capital our results are consistent with the media slanting their reporting in favor of good performing csr firms overall we contribute to the literature by showing that firms can influence their media coverage through a relatively subtle channel csr performance

a new database on the structure and development of the financial sector this article introduces a new database of indicators of financial structure and financial development across countries and over time the database is unique in that it combines a wide variety of indicators that measure the size activity and efficiency of financial intermediaries and markets it improves on previous efforts by presenting data on the public share of commercial banks introducing indicators of the size and activity of nonbank financial institutions and constructing measures of the size of bond and primary equity markets this article introduces a new database the first to provide comprehensive measures of the development structure and performance of the financial sector this database is the first to define and construct indicators of the size and activity of nonbank financial intermediaries such as insurance companies pension funds and non deposit money banks it is also the first to include indicators of the size of primary equity markets and primary and secondary bond markets in constructing the database authors carefully deflate measures and match stock and flow variables

how important is the financial media in global markets this article studies differences in the information content of 870 000 news announcements in 56 markets around the world in most developed markets a firm s stock price moves much more on days with public news about the firm in contrast in many emerging markets volatility is similar on news and non news days we examine several hypotheses for our findings cross country differences in stock price reactions are best explained by insider trading followed by differences in the quality of the news dissemination mechanism our findings are useful for quantifying the extent of insider trading and how the financial media affects international markets jel g14 g15 public news announcements are a major mechanism for disseminating information to investors each day the financial media releases thousands of articles covering companies in markets worldwide investors use this news to estimate assets fundamental values despite the perceived importance of the

the missing link the ricardian approach to the factor endowments theory of trade this paper views all interpersonal trade as ricardian while all international trade reflects each country s factor endowment the model provides the logical link betwe en heckscher ohlin and ricardo the strength of the model is that it allows simpler and more robust theorems about trade welfare and fac tor payments factor price equalization holds universally and stolper samuelson is not tied to the number of goods or factors a key resul t is that the old mill theorem that the small country gains all from trade is incorrect trade patterns with three factors and two goods a re completely characterized copyright 1988 by american economic association

paying attention or paying too much in medicare part d we study whether people became less likely to switch medicare prescription drug plans pdps due to more options and more time in part d panel data for a random 20 percent sample of enrollees from 2006 2010 show that 50 percent were not in their original pdps by 2010 individuals switched pdps in response to higher costs of their status quo plans saving them money contrary to choice overload larger choice sets increased switching unless the additional plans were relatively expensive neither switching overall nor responsiveness to costs declined over time and above minimum spending in 2010 remained below the 2006 and 2007 levels

tenure dependence in consumer firm relationships an empirical analysis of consumer departures from automobile insurance firms a typical pattern in markets featuring long term consumer firm relationships is for departure probabilities to decline with tenure a crucial question is whether this actually implies increasing consumer preference for firms if so firms should actively try to convince consumers to remain through the early periods of the relationship and should enter new markets quickly however the pattern can also be explained by selection on unobserved heterogeneity the challenge is to use the data available in these markets generally details on the consumers of one firm to distinguish between these explanations i rely on individual price histories in auto insurance findings include an economically relevant level of both relationship effects and heterogeneity but a much more important role for heterogeneity

modeling heterogeneity and state dependence in consumer choice behavior in frequently purchased consumer goods markets consumer brand choices exhibit substantial persistence across purchase occasions in this article i estimate a choice model that admits of both heterogeneity in preferences and true state dependence as sources of this persistence using nielsen scanner data on ketchup i find evidence for true state dependence in the choice process even after controlling for a rich heterogeneity structure simulation of the model indicates that the long term effect of a promotion induced purchase on future purchase probabilities is positive but small

what do chinese macro announcements tell us about the world economy we examine the effect of scheduled macroeconomic announcements made by china on world financial and commodity futures markets all announcements related to chinese manufacturing and industrial output move stock markets energy and industrial commodities as well as commodity currencies news about chinese domestic consumption leaves most markets unaffected suggesting that market participants view the announcements primarily as a signal of the state of the global economy rather than merely of china s domestic demand the market response to unexpectedly strong output announcements is not consistent with investors being concerned about tightening of chinese macroeconomic policy instead the world markets view strong chinese output as a rising tide that lifts all boats jel classification e44 g14 g15

a microeconomic mechanism for economic growth this paper constructs a dynamic general equilibrium model in which economic growth is explained by the evolution of the division of labor the relationships among the accumulation of human capital the evolution of the division of labor endogenous comparative advantage trade dependence the market structure and economic growth are investigated

services as experience goods an empirical examination of consumer learning in automobile insurance accurate is information at initial purchase how rapidly do consumers learn from product experiences and how much impact does learning have on purchase decisions i answer these questions for the case of automobile insurance using a panel of 18 595 consumers from one firm my principal findings are patterns of consumer departures following claims point to learning consumers enter the firm overly optimistic about its quality and are generally disappointed by experience and the impact of learning is mitigated by the slow arrival of claims and the development of lock in jel d12 d83 g22 l15

the gains from specialization and population size abstract this note combines three ideas the association of more people with new goods the comparative advantages of individuals and economic happiness people may not be happier in a larger knowledge economy but the gains from specialization are necessarily larger

intra industry information transfers associated with earnings releases abstract the impact that a firm s earnings releases have on the stock prices of other firms in its industry is examined for an identifiable sub set of firms the results are consistent with a significant information transfer occurring between the earnings release firm and the other firms in its industry this subset is identified by examining the impact of the release on the stock price of the announcing firm the magnitude of this impact is more significant for a sample of firms which have a larger percentage of their revenues in the same line of business as the earnings release firm vis a vis a sample with a lower percentage of their revenues from the same line of business alternative interpretations of the empirical results are also discussed the research findings have implications for information content and market efficiency research and for research on policy issues associated with disclosure regulation

sovereign risk and deposit dynamics evidence from europe abstractthe unprecedented expansion of sovereign balance sheets since the beginning of the global crisis has given a new meaning to the term sovereign risk developments in europe since early 2010 revealed new challenges for the functioning of private banks in an environment of heightened sovereign risk and may have contributed to deleveraging the article uses an innovative way of measuring the perception of sovereign risk and its impact using an extension of a common market discipline framework it shows that exposure to sovereign risk may have limited the ability of banks in europe to collect deposits potential identification issues between deposits and bank efficiency are controlled by using data envelopment analysis dea the results are robust to inclusion of conventional measures of bank performance and the sector wide holdings of foreign sovereign debt

unemployment dynamics and duration dependence a major issue in the analysis of unemployment durations concerns distinguishing genuine duration dependence of the exit rate out of unemployment from unobserved heterogeneity we present a method for the nonparametric estimation of both phenomena designed to be applicable to time series data on aggregate outflows from different duration classes the model explicitly takes into account that individual exit rates are affected by the business cycle and by seasonal effects the method is applied to u s data we find diverging duration effects among black and white individuals however except for white males duration dependence is dominated by unobserved heterogeneity

industry information diffusion and the lead lag effect in stock returns i argue that the slow diffusion of industry information is a leading cause of the lead lag effect in stock returns i find that the lead lag effect between big firms and small firms is predominantly an intra industry phenomenon moreover this effect is driven by sluggish adjustment to negative information and is robust to alternative determinants of the lead lag effect small less competitive and neglected industries experience a more pronounced lead lag effect the lead lag effect is related to the post announcement drift of small firms following the earnings releases of big firms within the industry

the division of labor coordination costs and knowledge this paper considers specialization and the division of labor a more extensive division of labor raises productivity because returns to the time spent on tasks are usually greater to workers who concentrate on a narrower range of skills the traditional discussion of the division of labor emphasizes the limitations to specialization imposed by the extent of the market we claim that the degree of specialization is more often determined by other considerations especially emphasized are various costs of coordinating specialized workers who perform complementary tasks and the amount of general knowledge available