the nature of diversified business groups a research design and two case studies diversified business groups dominate the private sectors of most of the world s economies several of these economies have undergone sudden policy changes that significantly increase domestic competitive intensity the authors demonstrate how the changes in corporate scope that accompany such competitive shocks can be used to weigh the importance of different explanations for the existence of diversified business groups the authors illustrate their reasoning by studying the restructuring of two of india s largest business groups following a comprehensive post 1991 package of policy reforms the case studies also elucidate aspects of the restructuring process that should inform larger sample empirical analyses copyright 1998 by blackwell publishing ltd

competitive targeted advertising with price discrimination this paper investigates the eects of price discrimination by means of targeted advertis ing in a duopolistic market where the distribution of consumers preferences is discrete and where advertising plays two major roles it is used by rms as a way to transmit relevant information to otherwise uninformed consumers and it is used as a price discrimination device we compare the rms optimal marketing mix advertising and pricing when they adopt mass advertising non discrimination strategies and targeted advertising price discrim ination strategies if rms are able to adopt targeted advertising strategies we nd that the symmetric price equilibrium is in mixed strategies while the advertising is chosen deter ministically our results also unveil that as long as we allow for imperfect substitutability between the goods rms do not necessarily target more ads to their own market in par ticular rms optimal marketing mix leads to higher advertising reach in the rival s market than in the rms own market provided that advertising costs are su ciently low in relation to the consumer s reservation value the comparison of the optimal marketing mix under mass advertising strategies and targeted advertising strategies reveals that targeted adver tising might constitute a tool to dampen price competition in particular if advertising costs are su ciently low in relation to the value of the goods we obtain that average prices with non discrimination mass advertising are below those with price discrimination and targeted advertising regardless of the market segment accordingly when i goods are imperfect substitutes ii advertising is not too expensive and iii targeted advertising constitutes an eective price discrimination tool price discrimination through targeted advertising may be detrimental to social welfare since it boosts industry pro ts at the expense of consumer surplus

districting and government overspending theories of government spending driven by a common pool problem in the fiscal revenues pool predict that greater districting of a political jurisdiction raises the scale of government this paper presents evidence on this and related predictions from a cross section of city governments in the united states the main finding is that when other plausible determinants of government spending are controlled for greater districting leads to a considerably greater scale of government activity the results also show that at large electoral systems do not and forms of government that concentrate powers in the office of the executive do break this relationship

education and propaganda tradeoffs to public education provision in nondemocracies abstract nondemocratic regimes face a tradeoff when investing in public education education promotes human capital acquisition expanding the tax base yet it also enhances political sophistication and participation at a cost to nondemocratic regimes to relax this tradeoff a regime can disseminate propaganda through its education system i show that even bayesian citizens can be influenced by propaganda by deterring political opposition propaganda can induce nondemocracies to invest in education when they otherwise would not improving social welfare when propaganda is too strong however it can generate a backlash using cross country and survey data i find evidence consistent with the predictions

organizational efficiency and monopoly power the case of french industrial groups abstract in this paper we examine the respective roles of efficiency and of market power considerations in explaining why industrial groups are the predominant form of organization in specific industries our econometric analysis of french industrial groups suggests that administrative and organizational efficiency is an adequate explanation for the existence of these groups and that rivalry between groups differently integrated and diversified is more likely to be the case than collusion

group loyalty and the taste for redistribution interpersonal preferences preferences that depend on the characteristics of others are typically hard to infer from observable individual behavior as an alternative approach this paper uses survey data to investigate interpersonal preferences i show that self reported attitudes toward welfare spending are determined not only by financial self interest but also by interpersonal preferences these interpersonal preferences are characterized by a negative exposure effect individuals decrease their support for welfare as the welfare recipiency rate in their community rises and racial group loyalty individuals increase their support for welfare spending as the share of local recipients from their own racial group rises these findings help to explain why levels of welfare benefits are relatively low in racially heterogeneous states

organizational choices for efficiency and market power abstract we examine the role of strategic consideration in the choice of organizational structures characterizing large corporations these considerations bridge the gap between the research on transaction costs and organizational forms and the research on strategic entry deterrence and threats an illustrative model is presented and we derive propositions which look promising for providing empirical benchmarks

financial reforms and income inequality abstract using a panel of 62 countries for 1973 2005 we assess the impact of financial reforms on income inequality we find that removal of policies towards directed credit and excessively high reserve requirements and improvements in the securities market reduce inequality

community composition and voter support for tax limitations evidence from home rule elections complaints about high taxes have stimulated taxpayer demands for explicit statutory or constitutional constraints on the taxing and spending powers of state and local governments although fiscal controls have long been a part of our system of government in the united states the recent tax revolt movement commonly is thought to have its roots in the late 1970s with the approval of proposition 13 in california voter discontent has produced a large number of new controls enacted during the last two decades why do voters need to impose explicit tax and expenditure constraints on the actions of their elected officials a major objective of this paper is to evaluate in a new setting the rationale for the existence of tax limitations direct evidence regarding the determinants of voter support for fiscal limitations is sparse despite the persistent clamoring for additional fiscal controls there have been few empirical studies that address the question of why voters desire tax and spend limits most of the existing studies were conducted over a decade ago citrin 6 courant gramlich and rubinfeld 8 and ladd and wilson 23 examined micro based survey data to identify factors that led taxpayers to support state imposed limitations on local governments although these three studies analyzed survey responses about tax limitation efforts in different states the common findings indicate that support for the constraints comes from individuals who want reduced taxes but prefer the existing level of spending the responses suggest that limitation supporters either are seeking increased municipal efficiency or as suggested by courant et al are suffering from free lunch illusion

the cost channel reconsidered a comment using an identification robust approach we re examine the empirical relevance of the cost channel of monetary policy e g ravenna andwalsh 2006 employing recently developed moment conditions inference meth ods including identi cation robust procedures using us data our results suggest that the cost channel e ect is poorly identi ed and we are thus unable to corroborate the previous results in the literature

informative advertising with differentiated products in this paper we study the role of promotional expenditures by sellers in a model of product differentiation advertising conveys full and accurate information about the characteristics of products heterogeneous consumers who have no source of information other than advertisements seek to purchase the products that best fit their needs despite the roles played by advertising in improving the matching of products and consumers and in increasing the elasticity of demand faced by each firm we find that the market determined levels of advertising are excessive given the extent of diversity in the market we derive a promotional equilibrium based on a specific information transmission technology paying explicit attention to the structure of consumer information and its impact on firms demand curves this allows us to study the effects of changes in the advertising technology including an increased ability to target messages to specific groups of consumers on the equilibrium in the product market we find that decreased advertising costs may reduce profits by increasing the severity of price competition

advertising in competitive markets in this paper small firms sell a homogeneous good to small consumers under conditions of free entry but consumers receive price information only through firms advertising in equilibrium every firm on the continuous price distribution buys less advertising than is socially optimal the result is robust if firms advertise in just one medium if readers of different advertising media are positively correlated excess advertising can occur in media used exclusively to advertise discount prices copyright 1991 by american economic association

research note consumer addressability and customized pricing the increasing availability of customer information is giving many firms the ability to reach and customize price and other marketing efforts to the tastes of the individual consumer this ability is labeled as consumer addressability consumer addressability through sophisticated databases is particularly important for direct marketing firms catalog retailers such as l l bean and land s end credit card issuing banks and firms in the long distance telephone market we examine the strategic implications of consumer addressability on competition between database direct marketing firms we address questions such as in a competitive environment how should firms invest in addressability will future improvements in the degree of addressability increase or mitigate the intensity of competition between the firms will greater addressability always be beneficial for firms we model competition between two firms in a market where consumers differ on a horizontal attribute of product differentiation the market comprises consumers located on a linear attribute space and firms located at the ends of the line we represent the degree of addressability or the reach of a firm s database as the proportion of consumers at each point in the market who are in the firm s database consequently the firm can offer these consumers customized prices consumer addressability creates two effects that govern the competition between firms a surplus extraction effect because a firm might address a consumer who is not reached by its competitor and a competitive effect that is created by the set of consumers who can be addressed by both firms the key results of the paper pertain to when the addressability decision is endogenous when the extent of market differentiation or consumer heterogeneity in preferences for a product brand attribute as well as the incremental cost of addressability are sufficiently large firms make symmetric investments in equilibrium given high costs firms choose sufficiently low levels of addressability low addressability and high levels of market differentiation both help reduce price competition which facilitates symmetric choice of addressability by the firms in equilibrium however when market differentiation and the cost of incremental addressability become small firms face the prospect of destructive competition as a result they strategically differentiate in their choice of addressability to mitigate this competition interestingly even in the extreme case when incremental addressability is costless not every firm chooses full addressability in equilibrium this has useful implications for direct marketing given that the advances in information technology should improve the ability of firms to address their consumers it might indeed not be desirable for all direct marketing firms to indefinitely pursue greater addressability as costs of doing so decline the analysis also shows an interesting effect of market differentiation in addressable markets equilibrium profits can decrease with an increase in market differentiation when the marginal cost of addressability is sufficiently high finally we discuss the competitive outcome that would result when firms compete with addressable as well as uniform posted prices

ethnic diversity social sanctions and public goods in kenya abstract this paper examines ethnic diversity and local public goods in rural western kenya the identification strategy relies on the stable historically determined patterns of ethnic land settlement ethnic diversity is associated with lower primary school funding and worse school facilities and there is suggestive evidence that it leads to poor water well maintenance the theoretical model illustrates how inability to impose social sanctions in diverse communities leads to collective action failures and we find that school committees in diverse areas do impose fewer sanctions on defaulting parents we relate these results to the literature on social capital and economic development and discuss implications for decentralization in less developed countries

community composition and collective action analyzing initial mail response to the 2000 census this paper analyzes how community heterogeneity influences resident decisions to undertake actions generating public benefits the decision in question is completing and returning the 2000 census questionnaire an action which secures a significant amount of federal grants for the community the model developed to explain this action allows members of societal groups to differentially value public benefits that accrue to other group members racial generational and socioeconomic class heterogeneity all predict significantly lower response rates at the county level the potential for endogenous sorting into heterogeneous counties implies that the magnitude of true behavioral effects exceeds these estimates

reducing public private sector pay differentials the single spine pay policy as a natural experiment in ghana empirical studies have documented the existence of the public private pay differentials in both developed and developing countries the implementation of policies aiming to reduce this gap has however been mitigated or inconclusive this paper exploits the single spine pay policy sspp in ghana as a natural experiment to examine the effectiveness of wage policies in developing countries the sspp was implemented in 2010 by the government of ghana to address the public private sector wage gap and improve productivity in the public sector using a quantile treatment effect approach based on a difference in difference did estimation we show that the sspp has yet to reduce the wage gap between the public and private sectors across the entire distribution of earnings in ghana the improvement observed is only at the lower tail of the distribution of earnings however the sspp has a larger effect on the earnings of female workers than that of males in the education and health services sector suggesting that the policy was successful in reducing the gender wage gap in that sector moreover the sspp has decreased the productivity of workers across the distribution of earnings mainly due to a decrease in the effort of female public sector workers nevertheless the sspp has had some successes and could be improved by putting in place a good managerial quality in the government agencies in addition it is important that the government pays much attention to various macroeconomic factors that have challenged the success of the sspp

the role of local officials in new democracies evidence from indonesia this paper shows that the body of appointed officials that a new democracy inherits from the previous regime is a key determinant of the extent of electoral fraud and clientelistic spending in new democracies i develop a model that predicts that appointed officials have stronger incentives to influence voters during national level elections because of their career concerns i test the implications of the model using data from indonesia s transition to democracy both the pattern of alignment of electoral results between village and district levels and the pattern of subsequent turnover of appointed village heads corroborate the predictions of the model

risk capital financing and the separation of ownership and control in business groups abstract this paper analyses business groups composed of legally independent firms connected through a network of cross shareholdings a model which allows to calculate the value of the firms of a group and the integrated ownership shares held by an outside stockholder is described a taxonomy for the collection of risk capital generalizing the one which applies for a single firm is proposed the connection between the process of raising risk capital and the separation of ownership from control in business groups is demonstrated and given a formal mathematical description empirical evidence relating to the amount of risk capital collected by italian business groups in the 80s and to the extent of the divorce between ownership and control is also provided

ethnicity and conflict an empirical study this paper examines the impact of ethnic divisions on conict the empirical specication is informed by a theoretical model of conict esteban and ray 2011 in which equilibrium conict is related to just three distributional indices of diversity ethnic polarization ethnic fractionalization and a greenberg gini index constructed across ethnic groups our empirical ndings verify that these distributional measures are signicant correlates of conict the underlying theory permits us to use these results to make inferences about the relative importance of public goods in conict as well as the extent of within group cohesion in conictual activity these eects are further strengthened as we introduce country specic measures of group cohesion and the relative importance of public goods and combine them with the distributional measures exactly as specied by the theory

dynamic pricing when to entice brand switching and when to reward consumer loyalty this article develops a theory of dynamic pricing in which firms may offer separate prices to different consumers based on their past purchases brand preferences over two periods are described by a copula admitting various degrees of positive dependence when commitment to future prices is infeasible each firm offers lower prices to its rival s customers when firms can commit to future prices consumer loyalty is rewarded if preference dependence is low but enticing brand switching occurs if preference dependence is high our theory provides a unified treatment of the two pricing policies and sheds light on observed practices across industries

targeted advertising strategies on television the personal video recorder pvr facilitates the use of targeted advertising by allowing companies to monitor television viewing behavior and to build demographic profiles of viewers from the data that are collected our research explores the extent to which an advertiser should allocate resources to increase the quality of its targeting we present a game theoretic model that extends the conventional measurement of targeting quality by exploring the trade off between two measures accuracy and recognition accuracy measures the likelihood that any target segment prediction is correct while recognition conversely measures the likelihood that any member of the target segment is identified we find that the relative resources allocated to improving accuracy and recognition depend upon the size of the population of viewers the propensity of viewers to skip commercials the overall cost of airing commercials and the competitive environment furthermore the incentives to improve accuracy are markedly different from those to improve recognition although improving accuracy does not affect the extent of price competition improving recognition leads to intensified price competition and reduced profitability in the product market thus when facing a competitor that pursues a strategy to improve its recognition of potential customers an advertiser should choose to reduce its investment in recognition and increase its investment in accuracy

estimating the performance effects of business groups in emerging markets business groups confederations of legally independent firms are ubiquitous in emerging economies yet very little is known about their effects on the performance of affiliated firms we conceive of business groups as responses to market failures and high transaction costs in doing so we develop hypotheses about the effects of group affiliation on firm profitability affiliation could either boost or depress firm profitability and members of a group are likely to earn rates of return similar to other members of the same group using a unique data set compiled largely from local sources we test for these effects in 14 emerging markets argentina brazil chile india indonesia israel mexico peru the philippines south africa south korea taiwan thailand and turkey we find evidence that business groups indeed affect the broad patterns of economic performance in 12 of the markets we examine group affiliation appears to have as profound an effect on profitability as does industry membership yet strategy scholars have a much clearer grasp of industries than of groups moreover membership in a group raises the profitability of the average group member in several of the markets we examine this runs contrary to the wisdom conventional in advanced economies that unrelated diversification depresses profitability overall our findings suggest that the roots of sustained differences in profitability may vary across institutional contexts conclusions drawn in one context may well not apply to another copyright 2001 john wiley sons ltd

targeted advertising the role of subscriber characteristics in media markets this paper seeks to establish the importance of targeted advertising in media markets using zip code level circulation for us daily newspapers i show that newspapers facing more competition have lower circulation prices but higher advertising prices than similar newspapers facing little or no competition i explain this by showing that newspapers in more competitive markets are better able to segment readers according to their location and demographics this leads to greater homogeneity in the characteristics of subscribers and raises advertisers willingness to pay for such readers the results imply a substantial benefit to advertisers and media firms from targeted advertising

the political economy of benefits and costs a neoclassical approach to distributive politics this essay offers a rational political explanation for the notorious inefficiency of pork barrel projects with an optimization model of legislative behavior and legislative institutions the model emphasizes the economically arbitrary from a welfare point of view importance of the geographic incidence of benefits and costs owing to the geographic basis for political representation we explore the implications of a legislator s objective function and derive conditions under which a representative legislature will select an omnibus of projects each of which exceeds the efficient scale

history based price discrimination and entry in markets with switching costs a welfare analysis abstract we analyze history based price discrimination in an asymmetric industry where an incumbent protected by switching costs faces an entrant who does not have access to information about consumers purchase histories we demonstrate that consumer surplus is higher with uniform pricing than with history based price discrimination we find that the entry decision is invariant to whether the incumbent implements history based pricing or uniform pricing this implies that the potential abuse of market dominance imposed by history based price discrimination is exploitation not exclusion finally we establish that the profit gain to the incumbent from history based pricing exceeds the associated loss to consumers

war and local collective action in sierra leone abstract we study the brutal 1991 2002 sierra leone civil war using nationally representative household data on conflict experiences postwar economic outcomes local politics and collective action individuals whose households directly experienced more intense war violence are robustly more likely to attend community meetings more likely to join local political and community groups and more likely to vote tests using prewar controls and alternative samples suggest that selection into victimization is unlikely to be driving the results more speculatively the findings could help partially explain the rapid postwar political and economic recoveries observed in sierra leone and after several other recent african civil wars

third degree price discrimination in oligopoly all out competition and strategic commitment price discrimination by imperfectly competitive firms may intensify competition leading to lower prices for all consumers the tradeoff of consumer groups welfare that is characteristic of monopolistic discrimination need not arise this escalation of competition may make firms worse off and as a result firms may wish to avoid the discriminatory outcome under conditions similar to those in which unambiguous price and welfare effects may arise unilateral commitments not to price discriminate including the adoption of everyday low pricing or no haggle policies may raise firm profits by softening price competition

competitive promotional strategies this article analyzes the equilibrium pricing strategies of brands engaged in a pricing game each brand has a monopoly market loyal consumers and competes with others in a common market called brand switchers in the case of a duopoly it is shown that the behavior of the brand switchers characterizes the equilibrium behavior of the duopolists this article focuses on two key comparative statics namely the depth of discounts away from a regular high price and the probability of giving a deal or the frequency of deals how these properties vary with the size of the loyal markets and the behavior of the brand switching population is discussed copyright 1988 by the university of chicago

customer poaching and advertising this paper is a first look at the dynamic effects of customer poaching in homogeneous product markets where firms need to invest in advertising to generate awareness when a firm is able to recognize customers with different purchasing histories it may send them targeted advertisements with different prices it is shown that only the firm which advertises the highest price in the first period will engage in price discrimination a practice that clearly benefits the discriminating firm this poaching gives rise to the race for discrimination effect through which price discrimination may act actually to soften price competition rather than intensify it as a result all firms may become better off even when only one of them can engage in price discrimination this paper offers a first attempt to evaluate the effects of price discrimination on the efficiency properties of advertising in markets with low or no advertising costs allowing firms to price discriminate leads them to provide too little advertising which is not good for consumers and overall welfare only in markets with high advertising costs might firms overadvertise regarding the welfare effects price discrimination is generally bad for welfare and consumer surplus though good for firms

an empirical analysis of the relationship between brand loyalty and consumer price elasticity this empirical paper explores the relationship between consumer brand preference or loyalty and price elasticity in purchase behavior this behavior is conceptualized as resulting from two distinct but related decisions namely a brand choice decision and a purchase quantity decision we argue that loyal consumers will be less price sensitive in the choice decision than nonloyal consumers however this direction is expected to be reversed in the quantity decision with loyal consumers expected to be more price sensitive than nonloyal consumers we model the choice and quantity decisions jointly using the limited dependent variable framework described in krishnamurthi and raj the data used are diary panel data on a frequently purchased product class from burke and caffeinated ground coffee scanner data from iri we show that loyals are less price sensitive than nonloyals in the choice decision but more price sensitive in the quantity decision managerial implications of the differing elasticities are disc

anonymous market and group ties in international trade abstract history provides many examples of cohesive groups dispersed over several countries who exploit the ties between their members to gain entry into foreign markets the phenomenon is well established empirically and noteworthy because it suggests the importance of informational barriers in international transactions we present a simple model where output is produced through a joint venture and agents have complete information domestically but are unable to judge the quality of their match abroad a minority of individuals otherwise identical to all others can exploit complete information in international matches between group members if they so choose group ties increase aggregate trade and income but hurt the anonymous market because they deprive it disproportionately of the group s more productive members

dynamic and targeted bundle pricing of two independently valued products abstract bundling is when two or more products are offered as a single unit and at a price lower than the sum of the individual prices of the products we study a multi segment market in which a retailer aims to clear the inventory of an item by bundling it with a second product which is independently valued we investigate the question of how dynamic and segment specific bundle pricing impacts retailer s revenue we develop a revenue model that integrates the dynamic and segment specific aspects of the pricing decisions and present a computational study to analyze their revenue impact relative to a price promotion for the individual item only the computational results indicate that the bundle offers are most effective when the initial inventory of the item under consideration is high the results also demonstrate that dynamic pricing is beneficial when the initial inventory of the item is low an additional revenue improvement is observed when the price of the bundle is dynamically optimized in the computational study segment specific pricing is observed to have no direct impact on revenue when prices are static segment specific and dynamic pricing however can bring about substantial revenue improvements that are an increasing function of the initial inventory level of the item we consider the correlation in consumers valuations of the bundled products and show that dynamically priced and segment specific bundle offers yield a robust revenue performance mitigating the potentially revenue diminishing impact of positive correlation in consumers valuations of the products

forced coexistence and economic development evidence from native american reservations there are large differences in economic development across native american reservations today this paper asks whether these differences can be in part explained by the forced integration of historically autonomous sub tribal bands in the 19th century to measure forced integration i combine anthropological data on intra tribal political integration in pre reservation times with historical information on the constituent bands of each reservation exploring variation in how politically integrated tribes were before reservations and variation in how politically integrated reservations were at the time of their formation i find that forced integration lowers per capita incomes today by about 30 percent to account for potential selection into forced integration i exploit historical mining rushes as a source of exogenous variation in the government s incentive to combine bands onto reservations the iv strategy confirms the baseline results i also provide quantitative evidence on the channels through which forced integration affects incomes today

business groups and social welfare in emerging markets existing evidence and unanswered questions abstract this paper reviews existing studies of the role of emerging market business groups a ubiquitous but poorly understood organizational form i first suggest that understanding the definition of business groups is itself an interesting albeit under studied research issue i then argue that the existing evidence suggests that the performance effects of group affiliation are large and generally positive there is substantial evidence that part of this is due to welfare enhancing functions originating in the idea that groups substitute for missing outside institutions but that part is also due to welfare reducing minority shareholder exploitation evidence is lacking on the extent to which groups facilitate rent seeking or the exercise of market power evidence is also lacking on the extent to which groups hamper the future development of markets the paper identifies areas where research is needed before current competition policy experiments in countries like china india and korea can be evaluated

together or separate post conflict partition ethnic homogenization and the provision of public schooling abstract the partitioning of political jurisdictions is becoming an increasingly common component of agreements to end ethnic conflict although its impact on post conflict recovery remains unclear this paper studies the effects of the partition which ended the 1992 1995 bosnian war on the post war provision of public schooling i find that partitioned municipalities provide 58 more primary schools and 37 more teachers per capita driven mainly by convergent preferences for ethnically oriented schools however this arrangement delivers distributional consequences in partitioned municipalities ethnic majority children are more likely to complete primary schooling while for ethnic minority children it is the opposite

managerialism revisited in the light of bargaining game theory abstract this lecture proposes to view the modern firm as a coalition of shareholders employees and business partners rather than to identify it with a single maximizer such as an entrepreneur this view may be thought of as a revival of the original thought of managerialism but tries to go further by analyzing implications of the interactions of those agents on the behavior of the firm in a bargaining game theoretic framework the lecture reviews the literature on game theoretic approaches to the theory of the firm and discusses a few important theoretical and institutional issues

the impact of targeting technology on advertising markets and media competition an important component of advertising effectiveness is the quality of the match between advertisers and the intended recipients of ads traditionally media have been able to tighten such matches by providing content tailored for specific groups of consumers for example local media outlets attract audiences from their localities ensuring that when local advertis ers place ads they are mostly viewed by their potential customer base recently online adver tising has afforded new technologies that tar get consumers directly rather than indirectly through tailored content a leading example of such targeting is based on geographic loca tion as inferred from ip addresses so while the boston globe may have had an advantage in selling ads to boston advertisers now the new york times can offer boston based ads to consumers located in boston industry specula tion is that such technologies may spur higher demand for online advertising but that these technologies will benefit general outlets more than local newspapers 1 it may be problematic for the future of the local news industry if gen eral outlets gain at their expense to date there has been little analysis on how the market for advertising might be impacted by targeting 2 intuition suggests that an outlet

oligopolistic pricing and advertising abstract n sellers advertise a homogeneous good to m buyers whose only source of information is this advertising there is a unique nash equilibrium ne in which sellers choose a common advertising level and mix over prices this ne approaches marginal cost pricing as advertising costs decrease and approaches monopoly pricing as advertising costs increase more sellers induce lower prices and less advertising per seller however the social welfare effect can be negative for some advertising technologies the ne advertising level is generically less than socially optimal journal of economic literature classification numbers d00 d4 d43 d8 d83 i00 i1 i13 m37

economic versus cultural differences forms of ethnic diversity and public goods provision groups between group inequality bgi we show that elf cultural fractionalization cf and bgi measure different things and that the choice between them has an important impact on our understanding of which countries are most ethnically diverse furthermore empirical tests reveal that bgi has a large robust and negative relationship with public goods provision whereas cf elf and overall inequality do not diversity is widely held to make governance more difficult such diversity is associated with low production of public goods poor economic growth and high levels of corruption violence and civil conflict but diversity hardly sentences a country to poor political and economic outcomes latvia for example has better governance indicators than brazil and zambia has better governance indicators than nigeria even though these pairs of countries have similar levels of ethnolinguistic fractionalization elf why then do some countries cope more successfully with ethnic diversity than others this article addresses this question by focusing on the

hierarchies and markets abstract whereas previous empirical studies have found performance gains from the adoption of multidivisional organization in u s and u k companies this paper reports a reduction in profitability for german m form firms for several years following reorganization with no sign of an eventual positive gain these results emerge from a cross section analysis of 48 among the top 100 german companies we suggest the constrasting results may flow from certain legal and institutional features not present in the u s and u k attenuating potential gains and enlarging short run transactions costs these include the role of the banks the relative concentration of shareholdings and the dual system of company boards

segmentation advertising and prices this paper explores the implications of market segmentation on firm competitiveness in contrast to earlier work here market segmentation is minimal in the sense that it is based on consumer attributes that are completely unrelated to tastes we show that when the market is comprised by two consumer segments and when there is sufficient variation in the per consumer costs firms need to incur to access the different consumer populations then firms obtain positive profits in symmetric equilibrium otherwise the equilibrium is characterized by zero profits as a result a minimal form of market segmentation combined with advertising cost asymmetries across consumer segments give firms an opportunity to generate positive rents in an otherwise bertrand like environment

on the strategic choice of spatial price policy the strategic incentives with respect to the choice of price policy in spatial competition are analyzed in a duopoly model price discrimination emerges as the unique equilibriu m outcome in games with either simultaneous choice of policy and pric e or sequential choice where firms may commit first to uniform mill p ricing before the actual market stage nevertheless profits may be h igher with uniform pricing the authors models are applied to analyz e some common business practices that arise in geographical pricing like the basing point system and in the pricing of varieties or opti ons from a base product in a product differentiation context copyright 1988 by american economic association

pricing with customer recognition abstract this article studies the dynamic effects of behaviour based price discrimination and customer recognition in a duopolistic market where the distribution of consumers preferences is discrete consumers are myopic and firms are forward looking in the static and first period equilibrium firms choose prices with mixed strategies when price discrimination is allowed forward looking firms have an incentive to avoid customer recognition thus the probability that both will have positive first period sales decreases as they become more patient furthermore an asymmetric equilibrium sometimes exists yielding a 100 0 division of the first period sales as a whole price discrimination is bad for profits but good for consumer surplus and welfare