multiple equilibria and deterrence in airline markets we use data from the us airline industry to estimate a model of entry deterrence we model the interaction among airlines as a repeated static game where we allow for a very general form of heterogeneity we consider a menu of three alternative games that describe the strategic interaction among airlines simultaneous and sequential move games and a sequential move game with deterrence investments following bernheim 1984 deterrence investments include all investment that raises barriers to entry and for which the incumbent must incur some investment costs we show that the profits that incumbents can make in the sequential game both with and without deterrence investments are larger than those that they can make if the game is played simultaneously thus we find that on average it is profitable for all firms to deter new entrants with the exception of united airlines remarkably united airlines was under bankruptcy protection during the period of analysis suggesting that its deterrence investments were not credible overall we find that the data is explained better by a model where firms make deterrence investments thus we cannot reject the hypothesis that incumbents deter entrants in the airline industry

new product introduction and incumbent response strategies their interrelationship and the role of multimarket contact in this article the author studies the determinants of both new product introduction and incumbent response strategies in a single integrated framework building on previous research in strategic

the resurgence of inflation in brazil 1974 1986 abstract this paper examines various factors which contributed to the resurgence of inflation in brazil in the 1970s and 1980s and the reasons for the failure of ortodox austerity programs to control it the evidence seems to black the school of thought which considers the best explanation for the recent inflationary experience to lie with the spread of formal and informal indexing leading to an inertial type of inflation the latter has led some economists to recommend heterodox methods of inflation control an epilogue briefly describes brazil s recent attempt to apply such methods

household formation housing prices and public policy impacts abstract this paper specifies and estimates a model of housing demand that explicitly includes the decision of individuals to form independent households parameter estimates reveal a considerable response of headship rates not only to income but also to housing prices analysis of housing policies ignoring the endogeneity of household formation is thus potentially biased the model is employed to evaluate the effects of a housing voucher program simulated responses indicate that such a program creates a substantial additional demand for housing due to its positive impact on the propensity of young and elderly persons to live independently

chapter 4 competitive marketing strategies game theoretic models publisher summary this chapter reviews the key developments in the understanding of competitive marketing strategies product price advertising and distribution competition are all addressed while the emphasis is on models the chapter surveys the empirical literature as well there is a significant amount of empirical work to report but the ratio of theoretical to empirical work is nevertheless unpleasantly large much progress has been made in the last ten years or so in the study of competitive marketing strategies most of this chapter has been theoretical using simple models of firm and consumer behavior these models serve the function of demonstrating rigorously the existence of certain effects factors which need to be considered in analyzing real world competition

optimal control of a dual service rate m m 1 production inventory model we analyse a dual source production inventory model in which the processing times at a primary manufacturing resource and a second contingent resource are exponentially distributed we interpret the contingent source to be a subcontractor although it could also be overtime production we treat the inventory and contingent sourcing policies as decision variables in an analytical study and additionally allow the primary manufacturing capacity to be a decision variable in a subsequent numerical study our goal is to gain insight into the use of subcontracting as a contingent source of goods and whether it can fulfill real world managers expectations for improved performance we prove that a stationary non randomised inventory and subcontracting policy is optimal for our m m 1 dual source model and moreover that a dual base stock policy is optimal we then derive an exact closed form expression for one of the optimal base stocks which to our knowledge is the first closed form solution for a dual source model we use that closed form result to advantage in a numerical study from which we gain insight into how optimal capacity subcontracting and inventory policies are set and how effectively a contingent source can reduce total cost capacity cost and inventory cost we find that i the contingent source can reduce total cost effectively even when contingent sourcing is expensive and ii contingent sourcing reduces capacity cost more effectively than it does inventory cost

multinomial logit market share models equilibrium characteristics and strategic implications we specify and analyze the conditions under which the mnl market share models are appropriate for equilibrium analysis our results show that a linear price response function as is often used in empirical research in conjunction with the typical concavity assumed in a large range of marketing response functions would yield an interior equilibrium solution we then consider the optimal reactions on pricing and marketing spending to entry and potential market expansion in the context of the mnl models we demonstrate that the entry of a new brand evokes a decrease in the equilibrium prices of the existing brands as a defensive reaction this is true in both an expanding market as well as a fixed market however while new entry into a fixed market would trigger the incumbents to lower the marketing expenditure we show that firms tend to raise marketing activities as they experience market expansion consequently there exist distinct possibilities that marketing efforts for the existing brands increase in view of entry in an expanding market further managerial and marketing implications for endogeneity of the number of firms are explored

economies of scale and barriers to entry dixit has recently presented a model in which established firms select capacity to discourage entry but cannot employ threats they would not rationally execute after entry entry deterrence in a slight modification of this model involves the classical limit price output under linear or concave demand however the capital cost of a firm of minimum efficient scale is an upper bound on the present value of the monopoly profit stream that can be shielded from entry it is argued that this suggests the general unimportance of entry barriers erected by scale economies

structural changes in brazil s industrial economy 1960 1980 abstract this paper examines the structural changes in brazil s economy which can be observed through various censuses and input output tables in the period 1960 to 1980 the paper shows how the country s economy became more vertically integrated in those years even though it has become more outward oriented since the early days of import substitution it also considers the relations between the distribution of income and economic structure both at present and in a possible future situation of redistribution

a prelaunch diffusion model for evaluating market defense strategies this paper describes the development and application of a marketing model to help set an incumbent s defensive marketing strategy prior to a new competitor s launch the management problem addressed is to assess the market share impact of a new entrant in the residential australian long distance telephone call market and determine the factors that would influence its dynamics and ultimate market appeal the paper uses probability flow models to provide a framework to generate forecasts and assess the determinants of share loss we develop models at two levels of complexity to give both simple robust forecasts and more detailed diagnostic analysis of the effect of marketing actions the models are calibrated prior to the new entrant s launch enabling preemptive marketing strategies to be put in place by the defending company the equilibrium level of consideration of the new entrant was driven by respondents strength of relationship with the defender and inertia while trial was more price based continued use of the defender depends on both service factors and price the rate at which share loss eventuates is negatively related to the defender s perceived responsiveness saving money being the only reason to switch and risk aversion prelaunch model forecasts validated six months after launch using both aggregate monthly sales data and detailed tracking surveys are shown to closely follow the actual evolution of the market the paper provides a closed form multistate model of the new entrant s diffusion a methodology for the prelaunch calibration of dynamic models in practice and insights into defensive strategies for existing companies facing new entrants

sunk costs and strategic commitment a proposed three stage equilibrium dixit s i980 paper in this journal the role of investment in entry deterrence has attracted considerable interest from economists concerned with constructing a modern theory of strategic behaviour towards entry in fact the paper has spawned quite an industry of commitment models in which the equilibrium payoffs in some final period game can be influenced by strategic commitments made by the players in an earlier period for similar models with important insights into strategic entry deterrence see eaton and lipsey i980 i98i schmalensee i98i the purpose of this note is to argue that when the instrument of stragetic commitment takes the form of sunk costs which both entrant and incumbent have to bear as it does in dixit s paper and in many other examples a three stage model rather than the two stage model presented by dixit is required although the proposed equilibrium differs from dixit s its qualitative features are the same it may or may not be profitable to deter entry and if it is the first mover may still prefer to play an accommodation strategy and allow entry to take place following dixit we restrict our attention to the asymmetric case in which one firm the incumbent makes the first move the two stage game involves the first mover sinking part of its costs in advance so that in the second stage equilibrium it will have a current cost advantage over the entrant which must incur the full cost of producing any desired output level the second period cost asymmetry ensures the incumbent a lar ger share of the post entry market which may be sufficient to deter entry altogether the problem with the two stage game lies in the nature of sunk costs sunk costs by definition are committed before the production period takes place if they were expended as a flow simultaneously with production they would not be sunk the installation of capacity is the natural example employed by dixit and well illustrates the point if installed capacity is a sunk cost which it must be for the incumbent to acquire any strategic advantage at all then the entrant s installed capacity is equally sunk and must also be committed before the production period takes place given this observation the post entry final period equilibrium should not be modelled as if the entrant were simultaneously incurring both variable and sunk costs but the incumbent only incurs variable costs this implies too great an asymmetry in favour of the incumbent the final period equilibrium should involve both firms incurring only variable

differences in income and poverty within brazil regional disparities in living standards within brazil have received increasing attention in recent years this paper indicates that although costs of living adjustments narrow spatial differences large regional disparities remain particularly upon comparing the northeast and the southeast the application of price indices reduces urban rural variations more than regional differences drastically narrowing the urban rural gap in food consumption poverty is nevertheless much more concentrated in the rural areas than in the urban areas although regional differences in its incidence are more striking than the urban rural divergencies this paper has not primarily concerned the policy implications of these income differentials but tries to highlight the importance of measuring cost of living differences and thus obtaining more accurate measures of income and poverty levels

macroeconomic adjustment and human nutrition abstract the macroeconomic adjustments made by most developing countries over the past decade to cope with economic crises have in many cases had severe effects on the poor these effects have often been ignored in planning but it is important to address them both to avoid human suffering and to facilitate economic growth this article provides a brief synthesis of current knowledge about the short term effects of macroeconomic adjustment policies on the nutritional status of the poor and proposes action to improve the nutrition effects of future adjustment programmes

modelling the choice of tenure and building type a multinomial logistic mnl model and a naive nested logistic model are estimated to relate differences in household size age income and housing prices to differences in the choice of tenure and building type the estimated models show that the demand for lower density options decreases with a reduction in household size and increases with increasing age and real income higher rents increase the demand for owner occupied single family detached houses higher price levels for the ownership option shift demand toward all of the higher density options particularly toward high rise rental apartments the key assumption underlying the mnl model is examined and shown to not hold true however the differences in the predictions made by the two models are too small to matter in the study of the choices among the major building types issues regarding the choice of models are discussed in the conclusions

brazilian socioeconomic development issues for the eighties since 1964 brazil has experienced rapid economic growth exclusionary politics and a persistently unequal distribution of income after 1973 rapid growth was maintained only at the cost of accelerating inflation and massive foreign borrowing while a process of political liberalization was begun a change in economic development strategy could increase the number of jobs created per unit of capital invested concentrate benefits on those who have least profited from the growth process to date decrease imports and increase the productivity of the poor such a strategy the outlines of which can be found in brazil s third national development plan makes good social as well as economic sense

defensive marketing strategies this paper analyzes how a firm should adjust its marketing expenditures and its price to defend its position in an existing market from attack by a competitive new product our focus is to provide usable managerial recommendations on the strategy of response in particular we show that if products can be represented by their position in a multiattribute space consumers are heterogeneous and maximize utility and awareness advertising and distribution can be summarized by response functions then for the profit maximizing firm it is optimal to decrease awareness advertising it is optimal to decrease the distribution budget unless the new product can be kept out of the market a price increase may be optimal and even under the optimal strategy profits decrease as a result of the competitive new product furthermore if the consumer tastes are uniformly distributed across the spectrum a price decrease increases defensive profits it is optimal at the margin to improve product quality in the direction of the defending product s strength and it is optimal at the margin to reposition by advertising in the same direction in addition we provide practical procedures to estimate 1 the distribution of consumer tastes and 2 the position of the new product in perceptual space from sales data and knowledge of the percent of consumers who are aware of the new product and find it available competitive diagnostics such as the angle of attack are introduced to help the defending manager this article was originally published in marketing science volume 2 issue 4 pages 319 360 in 1983

investment in lumpy capacity abstract investment in lumpy capacity is usually fraught with uncertainty divergent opinions about the future can then lead to adverse selection optimistic competitions tend to be the ones that expand few firms correct this bias formally they rely instead on payback criteria portfolio planning risk sharing and self restraint

resource allocation to defensive marketing and manufacturing strategies abstract in this paper we investigate the coordinated use of marketing and manufacturing strategies to formulate a defensive business strategy for an incumbent firm upon market entry while defensive marketing strategies have been researched extensively little has been done on defensive manufacturing strategies and even less on coordinating these two we propose a formulation for the joint formation of a defensive strategy by the marketing and production functions under budget constraint considerations the incumbent firm may allocate its resourcesto advertising and distribution expenditures as well as to manufacturing investments to reduce the unit production cost the incumbent firm has also the option of simply allocating all of its resources purely to advertising and distribution we show that while there exist cases where the optimal reaction to entry involves investments in manufacturing improvements there are also cases where defense is in marketing strategies alone we identify the market conditions that promote such reactions to entry and also provide sensitivity analysis

third world cities the changing national settlement system this is a review of recent literature on trends in urbanization in developing countries the author examines the decline in the pace of urbanization in the middle east and latin america changes in migration related to changes in spatial structure a trend toward a more polycentric form of metropolitan development around some major urban centers a decline in the pace of metropolitan expansion associated with economic recession and the failure of regional policy to affect urbanization trends annotation

an equilibrium analysis of defensive response to entry using a coupled response function model we determine the optimal response to competitive entry in a market characterized by a market share attraction model the response of an incumbent is limited to changes in prices advertising and distribution expenditures brand positions are assumed to be fixed we also assume that the entrant s position is chosen exogenously and that the sales potential of the market is constant after proving the existence of a unique nash equilibrium we show that the optimal response depends on the relative market share of the incumbents the response by nondominant brands with market shares less than 50 mirrors the prediction by decoupled response function models reduce price advertising and distribution spending for the dominant brand having a market share of 50 the response is to reduce price and increase marketing spending this finding explains previous empirical results that could not be addressed by the decoupled models

modeling competitive pricing and market share anatomy of a decision support system even with today s high emphasis on management decision support systems relatively little has been published on the motivations tribulations and post mortems that generally accompany the development of such systems this paper reports in a mixture of narrative style and more formal model exposition how a computerized decision support system for optimal price determination was developed implemented and finally applied to a broad range of industry problems

excess capacity and entry some empirical evidence recent articles by spence i977 dixit i979 and schmalensee i98i have elaborated on wenders i97i1 proposition that excess capacity can act as a barrier to entry the intent of all of these treatments is to suggest that firms may rationally invest in excess capacity with the expectation that excess capacity will be seen by potential entrants either as a signal of aggressive intent or as a credible threat 2 when excess capacity does not lead to creation of a credible threat it may still act as a barrier to entry by shifting the risk return perceptions of potential entrants enough to divert the potential entrants investments into other industries 3 alternatively investment in excess capacity by incumbent firms may reduce the prospects of an active market for the used equipment of a defunct entrant and thereby help to convert fixed costs into sunk costs consequently raising entry barriers 4 this paper represents an exploratory effort to investigate empirically the prevalence and efficiency of excess capacity in deterring entry first a simple and traditional model of entry is presented this is followed by the description of the data used to explore the excess capacity investment concept a combined results and comments section follows the description of the data

note competitive price and positioning strategies brand positioning and brand pricing are important strategic decisions for marketing managers such decisions are interrelated and depend upon competitive brand positions and prices however any unilateral decisions may encourage repositioning and price adjustment by competitors thus leading to either new market equilibria or a price positioning war this paper examines such price and positioning decisions in a competitive environment by extending the defender consumer model to more complex equilibria we assume that the brands are already in the market and that positions are sticky in the sense that brands cannot leapfrog one another among the insights for such incumbent brands are if prices are symmetric and held constant firms seek to reposition toward the center of the market but price advantages by central firms can mediate that central tendency such that an equilibrium exists with positive profits if brand positions are held constant the nash equilibria for prices exist and are unique and category profits the sum of brand profits are maximized for maximum brand differentiation for two and three brand markets the subgame perfect nash equilibrium where positioning decisions are made with foresight on the price equilibria causes firms to unilaterally seek maximum brand differentiation but for four or more brands greater foresight and or cooperation appears necessary to reach the point of maximum brand differentiation these results apply where the defender consumer model is an exact description of consumer response and where the competitive reaction assumptions hold in any empirical situation such forces might be softened resulting in differentiated but not maximally differentiated brands

product and price competition in a two dimensional vertical differentiation model in this paper the one dimensional vertical differentiation model shaked and sutton shaked a j sutton 1982 relaxing price competition through product differentiation rev econom stud 49 3 13 moorthy moorthy k s 1988 product and price competition in a duopoly marketing sci 7spring 141 168 is extended to two dimensions and an analysis of product and price competition is presented a two stage game theoretic analysis in which two firms compete first on product positions and then on price is conducted closed form equilibrium solutions are obtained for each stage in which competitors are unrestricted in their choices of price or product positions a significant finding of this research is that unlike the one dimensional vertical differentiation model firms do not tend towards maximum differentiation although this solution is possible under certain conditions when the range of positioning options on each of the dimensions is equal maxmin product differentiation occurs that is in equilibrium the two firms tend to choose positions which will represent maximum differentiation on one dimension and minimum differentiation on the other dimension

determinants of canadian headship rates this article shows how regional differences in household formation relate to differences in income and housing prices it presents an assessment of the effect of housing prices and income expectations on household formation decisions gender differences are revealed differences between spatial and temporal variation in headship rate changes are illustrated along with the inappropriateness of using coefficients obtained through cross sectional analysis in forecasting exercises or impact assessments normative conclusions are developed

rural labor legislation and permanent agricultural employment in northeastern brazil abstract permanent annual or longer term agricultural employment declined relative to temporary daily weekly or seasonal employment during the 1960s in a sugar cane producing region in northeastern brazil but increased rapidly during the 1970s predictions from economic theory are combined with observations about the economic forces at work during the period to argue that in the absence of government intervention permanent employment would likely have risen during both decades the argument renders the introduction of the brazilian rural labor statute rls of 1963 a strong candidate explanation for the decline of permanent employment in the 1960s the rls s employment stability provision which required employers to make severance payments to workers with at least one year tenure dismissed without just cause not only increased the expected cost of permanent contracts but also changed the very nature of permanent employment prior to the legislation employers induced permanent workers to be subject to them by giving them premium wage and benefits packages and threatening to dismiss them if caught shirking in subjection severance pay provisions made such threats incredible the elimination of farmers ability to derive subjection benefits from permanent employees reduced even further the incentive to hire workers under permanent contracts

pioneers marketing mix reactions to entry in different competitive game structures theoretical analysis and empirical illustration pioneers marketing mix reactions to new entries are recognized as important determinants of the outcome of pioneerlate mover competition particularly in price inelastic markets such as those for pharmaceuticals cigarettes and luxury goods managers in such markets are interested in better understanding when to accommodate i e decrease marketing spending or retaliate i e increase spending in nonprice marketing variables such as advertising and salesforce in addition the reallocation of marketing resources toward advertising indicated by a pull strategy or salesforce indicated by a push strategy upon entry is strategically important to managers previous theoretical research shows that pioneers should retaliate in both static and growing markets results from empirical research are mixed in that they support both accommodation and retaliation in growing markets empirical research also shows that a pioneer accommodates retaliates with its low high elasticity marketing mix variable contrary to prior research however some pioneers have successfully accommodated late movers in growing markets and in some cases have accommodated with their stronger marketing mix variables and also retaliated with their weaker marketing mix variables for example bristol myers squibb s capoten accommodated the entry of merck s vasotec in the growing ace inhibitors market with its more powerful variable salesforce but also retaliated with its less potent variable advertising moreover not much is known about how the pioneer s marketing mix allocation should change i e toward pull vs push strategies in response to new entries we seek to better explain the pioneer s reactions and predict its shift in marketing mix allocation upon new entry we note that prior research s predictions on the pioneer s reactions are based on a limited number of key factors such as product market characteristics and the pioneer s elasticities prior to a new entry in this paper we extend previous research by adding two other critical factors namely the impact of new entry on the pioneer s elasticities and margin and different competitive game structures to better predict and explain the pioneer s reactions we develop analytical results on the pioneer s reactions in price advertising and salesforce in different competitive games both nash and different leader follower games in these results we identify the conditions under which the pioneer should accommodate or retaliate or not react to a late mover s entry and shift its marketing mix allocation toward pull versus push strategies we empirically illustrate some of the analytical results using data from a pharmaceutical category we show that a pioneer who adopts a follower leader role with respect to a marketing mix variable in a static growing market and witnesses a decrease an increase in own elasticity and margin upon a new entry generally should accommodate retaliate in that variable however we are also able to show that there are cases where these general reactions don t hold thus for example it is possible for a pioneer to find it optimal to accommodate in a growing market or to retaliate even when its elasticity decreases upon entry depending on the combination of competitive game the impact of entry on elasticities and margin and market growth in this way our results point to the fact that it is necessary to look not only at one factor at a time but instead examine the combination of all the factors we explain the empirical support for both accommodation and retaliation in growing markets by showing that the pioneer should accommodate retaliate a late mover with its competitively low high elasticity marketing mix variable competitively high low elasticity variables are not are likely to be significantly reduced by a new entry in the anticipated competitive game with regard to reallocation of the pioneer s marketing mix we show that the change in the pioneer s marketing mix allocation should follow the change in the relative marketing mix effectiveness after new entry this in turn depends on the structure of competition the impact of the late mover on its elasticities and margins and the competitor s marketing mix elasticities in addition to own elasticities the results can guide managers on how factors such as competitive structure changes in elasticities and margin and market growth impact the pioneer s marketing mix decisions and on when to accommodate retaliate or not react to a late mover s entry and shift marketing mix allocation toward pull versus push strategies

poverty and distorted industrialization in the brazilian northeast abstract dramaric federal intervention and extensive industrialization in the brazilian northeast have not overcome its stagnant economy and society after centuries of isolation and dependence on sugar exports the northeast was integrated economicallu into brazil during 1930 1960 and since then it has been partially industrialized the regional economy however is weakly integrated and highly unequal leaving local markets small industrial growth remains keyed to other parts of brazil and dependent politics distort the region s relations with brasilia social inequality is extreme prospects for the future are bleak

the role of obsolescence and inventory costs in providing commitment this paper modifies the cournot and stackelberg models to allow the firms to sell less than they have produced and to store the unsold portion of their output as inventory even if one of the firms can choose its output before the other if it is costless to carry unsold goods forward then the cournot outcome emerges we show however that costs of carrying the inventory forward endow the firms with a limited degree of commitment to sell what they have produced this partially restores the first mover advantage if the firms choose their outputs simultaneously the cournot outcome emerges and has locally consistent conjectures

who benefits from industrial decentralization social power in the labour market income distribution and spatial policy in brazil storper m 1984 who benefits from industrial decentralization social power in the labour market income distribution and spatial policy in brazil reg studies 18 143 164 brazil has one of the world s most spatially concentrated industrial economies the level of concentration can be partly explained by the characteristics of its labour market the process of bargaining between workers and employers that underlies wage determination and labour supply formation in greater sao paulo has until recently been tilted in favour of employers allowing them an unusual level of power this condition affects all segments of the urban labour market whether modern or informal stable or unstable employers are thus able to continue to concentrate industry in sao paulo without fear of augmenting workers power advocates of national spatial policies based on decentralization have not accounted for the socio economic causes and consequences of industry decentralization on the welfare of workers premature decentr

prices parents and young people s household formation an economic theory of young people s decision to live apart from parents is presented and used to structure econometric analyses of the processes of leaving the parental home and returning to it which employ data from the british household panel survey for the first half of the 1990s the econometric estimates support the predictions of the theory in particular tighter housing markets as indicated by higher regional relative house prices significantly retard home leaving especially the formation of partnerships and encourage returns to the parental home young people with larger current income are more likely to leave but less likely to return to the parental home

commentary defensive marketing strategies for every new product and service entrant there are usually many incumbents who must defend their positions in the market hence defensive strategy is as least as critical as new product strategy our 1983 article argued that defensive strategy critically depends on the distribution of buyer preferences and the position of the new entrant relative to the position of the incumbent in a multidimensional attribute space since the appearance of our 1983 article in marketing science research in defensive strategy has progressed in both prescriptive and descriptive directions subsequent research on defensive strategy has also addressed empirical methodological theoretical and substantive issues today defensive strategy is more important than ever with shorter new product life cycles persistent service innovation remarkable technological change global competition and the invention of new channels of distributions

response to competitive entry a rationale for delayed defensive reaction empirical studies examining responses to new product entries come to the puzzling conclusion that in general an incumbent reacts to a new entrant after a significant delay even easy to implement price cuts are observed after significant lag following entry these findings seem to contradict the existing literature that either implicitly assumes or strongly advocates immediate defensive responses to limit competitive encroachment when a competing firm enters the market consumers may be uncertain about the entering firm s product quality the incumbent firm through rigorous tests may fully know the entrant s quality suppose the incumbent aggressively lowers price this may cause the consumers to wonder if indeed the entrant s quality is high in other words an incumbent s reaction may cause the consumers to make inferences about the entrant s quality such strategic implications of the incumbent s reactions have to be carefully analyzed before determining the optimal response by the incumbent in this paper we propose a conceptual framework for understanding differences in the magnitude and timing of incumbents responses to competitive entries we consider a model in which a monopolist incumbent firm faces competitive entry the incumbent firm knows the true quality of the entrant with certainty although consumers are aware of the incumbent s product quality through their prior experience they are initially uncertain of the entrant s product quality in such a situation a high quality entrant has the incentive to signal her true quality through her strategic price choice however the uncertainty about the entrant s quality is favorable to the incumbent in the sense that consumers believe with a high probability that the entrant s quality is low as a result the strategic incentives facing the incumbent and the entrant oppose each other while the entrant wants to signal her high quality the incumbent wants to prevent her from doing so we demonstrate that one way the incumbent can prevent the quality signaling is to select a higher than his optimal competitive duopoly price in other words the incumbent can prevent or jam the entrant s quality signaling by choosing a price higher than his optimal competitive price when consumers are fully informed about the entrant s true quality though the signal jamming price is lower than the monopoly price the price is substantially higher than the competitive price this marginal reduction in the incumbent s price from the pre entry monopolistic price represents a muted or lack of response by the incumbent to the competitive entry however once the entrant s quality gets revealed in subsequent periods through consumer usage and word of mouth the entrant has no incentive to engage in quality signaling and the incumbent has no incentive to jam it therefore the market reverts to the complete information competitive prices and the incumbent lowers his price considerably this temporal pattern of muted price reduction in the first period followed by a sharp price reduction in the second period corresponds to a delayed defensive reaction in our model although the empirical studies suggest that the delayed reaction may arise due to factors such as managerial inertia or indecision we demonstrate that such a behavior is indeed an optimal strategy for a profit maximizing firm thus our model reconciles empirical results with the equilibrium outcome of a strategic analytical framework furthermore in an experimental setting we test the predictive power of our framework and establish that consumers indeed form conjectures about the entrant s quality based on the incumbent s reactions in the first experimental study we find strong support for the notion that the incumbent s price reaction may indicate entrant s quality in a follow up study we observe that whenever the incumbent lowers prices respondents judge the quality of the entrant to be higher as compared to the case when prices are the same or increased the managerial implication of this paper is that well established incumbent firms should be cautious in the implementation of their defensive responses to product introductions of uncertain quality by competitors of particular concern are situations where the reactions are easily observable by consumers a strong reaction may suggest that the incumbent takes the competitive threat seriously leading consumers to believe in the quality of the competitor s product

misleading comparisons of homeownership rates when the variable effect of household formation is ignored explaining rising homeownership and the homeownership gap between blacks and asians in the us despite ominous signs of housing market stress in the us the homeownership rate reached an all time high in 2006 the conventional definition of homeownership which is based on the share of households and ignores the effects of variable household formation confounds the measurement of success in achieving homeownership it is found that from 1990 to 2006 declining household formation led to an elevated homeownership rate in the us and that this effect varies substantially between racial ethnic groups asians who achieve high homeownership rates have the lowest propensity to form independent households in sharp contrast to african americans asians do not have better access per capita to owner occupied housing than do blacks the conventional measure of homeownership is an incomplete measure of homeownership opportunity because it fails to account for variable household formation the changing population mix in the us includes groups with different propensities for household formation thus confusing future assessments of homeownership and the housing market

defensive marketing strategies an equilibrium analysis based on decoupled response function models the entry of a new product attacker into a competitive market is likely to provoke responses from some or all of the existing products defenders this paper investigates the development of optimal defensive strategies based on an understanding of the possible reactions of all the defenders to an optimal attack following lane lane w j 1980 product differentiation in a market with endogenous sequential entry bell j econom 11 1 spring 237 260 we assume that n products each enter sequentially with perfect foresight on subsequent entry then based on new technology an unanticipated attacker enters the n defenders respond in price but not position according to lane s model once this equilibrium is obtained advertising and distribution response functions scale sales we show that under these decoupled response function models of advertising and distribution uniformly distributed tastes and nonincreasing market size the optimal defense for all existing brands is to decrease their respecti

the economic determinants of young people s household formation the paper derives predictions about the impact of the price of housing young adults income and parental income on the probability that a young adult in the united kingdom lives apart from his her parents it shows that the predicted effect of the price of housing is intimately related to the price elasticity of housing demand it uses longitudinal data on a cohort of britons born in 1958 surveyed in the national child development study to estimate dynamic models of first departure from the parental home and particularly to estimate the impact of housing price on the timing and destination of first departure excerpt

competitive positioning in markets with nonuniform preferences we investigate the nature of competitive equilibrium for brands competing in a multi attribute product space when consumer preferences for product attributes follow nonuniform distributions we establish subgame perfect equilibria in a two stage game where firms choose positions in the first stage and prices in the second stage two types of entry scenarios are investigated in the first the number of brands is given exogenously and all of them choose positions simultaneously in the second scenario firms enter in sequence and the early entrants can choose strategies to deter the entry of later entrants we find the equilibria for two three and four brands for consumer preferences that follow a beta distribution nonuniform distributions result in equilibrium configurations that are substantially different from those obtained for uniform consumer distributions in the two brands case for sufficiently concentrated distributions we find asymmetric position equilibria with one firm at the corner of the market and one firm at an interior position in the case of three brands for sufficiently concentrated preferences we find symmetric equilibria that do not yield maximal differentiation we also establish an equilibrium for the case of four competing brands in addition we characterize entry deterring positioning strategies and examine how they vary with the distribution of consumer preferences

decomposing canada s growing housing affordability problem do city differences matter this article examines the role of eight factors that affect the prevalence and incidence of housing affordability problems geography demography migration immigration ethnicity income recipients income source employment and education it develops bivariate probit models that use the 1991 and 1996 canadian census public use microdata to predict the joint probability that a household spends more than half of its income on housing and that its income is below the poverty line the conclusions show that city and regional differences are negligible after the effects of the factors common to all the cities have been accounted for changing employment levels and sources of household income are the most important factors explaining the prevalence and growth of housing poverty while single parents have the highest incidence the growth of the problem is mostly in the young non family households migration immigration and ethnicity play a role that is independent of the other factors education has almost n

perceptual position and competitive brand strategy in a two dimensional two brand market brand positioning and competitive reaction are important determinants of optimal brand strategy analyses of brand strategy have focused on optimal pricing and positioning issues using either empirical models of perceptions and preferences game theory to examine competition or both however the important issues of advertising and distribution strategy have not been fully addressed this paper analyzes competition and strategy between two brands that compete in a two dimensional market with advertising and distribution spending in addition to prices and product positions in particular for a unimodal taste distribution of ideal points we show how optimal competitive nash equilibrium marketing mix levels and profits depend on the positions of both brands brands can reposition to increase profit and under what conditions these strategies imply minimum versus maximum differentiation positioning equilibria and how the intensity of advertising and distribution competition affect equilibrium brand positions

entrepreneurship and growth creative and equilibrating events this paper investigates the constraints on the growth of creative and equilibrating entrepreneurial events the empirical material is drawn from the greek economy it was observed that the two different levels of entrepreneurial events involve constraints of different kinds this paper analyses those constraints and their significance for entrepreneurial growth