the crowding hypothesis and comparable worth although women s pay and occupational distribution have improved during the past few years it is still true that women earn considerably less than men and that their occupational distribution is substantially different because progress has been slow toward equality in the labor market some have called for a comparable worth policy proponents of this approach argue that occupational segregation contributes to the earnings disparity between women and men one theoretical justification for this position is the crowding hypothesis this paper first explains this theory and presents a method used to test its principal hypothesis it then describes an extension of this design for estimating the phenomenon that comparable worth policies address empirical studies conducted in this area are viewed and new findings are presented finally limitations of this analysis are discussed i introduction

on the simple economics of advertising marketing and product design we propose a framework for analyzing transformations of demand such transformations frequently stem from changes in the dispersion of consumers valuations which lead to rotations of the demand curve in many settings profits are a u shaped function of dispersion high dispersion is complemented by niche production and low dispersion is complemented by mass market supply we investigate numerous applications including product design advertising marketing and sales advice and the construction of quality differentiated product lines we also suggest a new taxonomy of advertising distinguishing between hype which shifts demand and real information which rotates demand

revealed preference and its applications this note contains a short history of my work on the foundations of revealed preference emphasising the intellectual influence of sydney afriat i also present a few novel applications of revealed preference analysis drawn from some areas of applied economics

the welfare effects of third degree price discrimination with nonlinear demand functions the welfare effects of third degree price discrimination are analyzed when demand in one market is an additively shifted version of demand in the other market and both markets are served with uniform pricing social welfare is lower with discrimination if the slope of demand is log concave or the convexity of demand is nondecreasing in the price the demand functions commonly used in models of imperfect competition satisfy at least one of these sufficient conditions

the effects of comparable worth in the public sector on public private occupational relative wages if as appears likely comparable worth programs are confined to the public sector the level of publiclprivate relative pay may change and the structure of publiclprivate relative wages within occupations will almost certainly change the nature of these changes will determine the degree to which public wages conform more or less closely to the prevailing wage standard which requires that wages for public jobs be equivalent to wages for similar private sector jobs thus there will be implications for economic efficiency this study analyzes alternative scenarios involving comparable worth in the state and local government slg sector the results suggest that when comparable worth is implemented through special wage increases public sector wages are moved further from compliance with the prevailing wage standard this is because public wages are on average already on a par with privatesector wages however comparable worth tends to provide larger wage increases to those occupations where publiclprivate wages are relatively low and when the payroll budget under comparable worth is fixed at the same size as the payroll budget before comparable worth public wages could be moved closer to compliance with the prevailing wage norm

comparable worth in a decentralized labour market the case of ontario we document the application of pro active pay equity legislation to the private sector of the canadian province of ontario in the early 1990s we report substantial lapses in compliance among smaller firms where the majority of men and women work we also find that the pay equity law had no effect on aggregate wages in female jobs or on the gender wage gap this experience provides unique perspectives on 1 the tensions between the workings of a decentralized labour market and the principles of comparable worth and 2 the obstacles to its extension to the private sector jel classification j7 j3 l equite salariale dans un marche du travail decentralise le cas de l ontario les auteurs documentent l application de la loi d equite salariale mise en vigueur dans le secteur prive en ontario au debut des annees 1990 on fait etat de defaillances substantielles dans la mise en uvre de cette politique aupres des pme ou la majorite des hommes et des femmes travaillent l analyse revele que au niveau agrege la loi d equite salariale n a pas eu d effets sur les salaires dans les emplois feminins ou sur l ecart salarial entre les hommes et les femmes l experience ontarienne fournit des perspectives eclairantes sur 1 les tensions entre le fonctionnement d un marche du travail decentralise et les principes de salaire egal pour un travail de valeur comparable et 2 sur les obstacles a l extension de ces principes au secteur prive

wal mart and social capital economists increasingly recognize that markets exist within social and cultural contexts and that these contexts affect how resources are allocated to competing ends the social economics literature views individuals as both affected by and affecting the environment in which they live e g barrett 2005 durlauf and young 2001 contributors to this literature recognize that utility and happiness are relative concepts that depend on levels achieved by peers layard 2005 and acknowledge that both utility and happiness can increase with levels of social interaction kahneman and krueger 2006 further because social organization is typically characterized by multiple equilibria small changes in economic conditions can lead to dramatic changes in the behavior of and membership in social groups and networks barrett 2005 p 10 a far reaching economic change is the recent rise of big box retailing led by wal mart corp fishman 2006 while the chain s adverse impact on mom and pop type retail outlets has been well documented stone 1997 irvin and clark 2006 the second round effects of such store closings on local social capital or civic capacity have not been studied for example economic developers lament the fact that community civic capacity declines when locally owned banks go out of business or are taken over by national corporations yet systematic evaluation of this phenomenon has remained elusive because of the difficulty of measuring local social capital advances in the consistent measurement of county level social capital rupasingha goetz and freshwater 2006 now make it possible to examine rigorously the impact of

a general analysis of the output effect under third degree price discrimination ever since pigou s i929 classic work economists have been in widespread agreement that any theoretical analysis of the problems of price discrimination must address itself to the question of whether total output is greater or less in simple monopoly than it is in third degree price discrimination more than 50 years ago joan robinson i933 advanced the local adjusted concavity criterion to answer this question robinson considered a monopoly selling in two sub markets and advanced two fundamental propositions a if the more elastic demand curve is concave and the less elastic curve is a straight line or is convex then the total output will be greater under discrimination than under simple monopoly p i93 b if both curves are strictly concave or convex output under discrimination will be greater less than the simple monopoly output according to whether the adjusted concavity is smaller for the more less elastic demand curve p

industrial districts old wine in new bottles harrison b 1992 industrial districts old wine in new bottles reg studies 26 469 483 according to the theory of industrial districts a new wave of economic growth is being led in a number of regions in europe north america and east asia by spatially concentrated networks of mostly small and medium sized enterprises often using flexible production technology and characterized by extensive local interfirm linkages does this amount to a re emergence of the dominance of what urban and regional economists call agglomeration economies over the well known pressures on business to spatially disperse its operations neoclassical economic theorizing from marshall to perroux provides one perspective on the contemporary industrial district phenomenon another is afforded by granovetter s more recent elaboration of the ideas of embedding under and over socialization confronting each of these theoretical approaches with the other leads me to conclude that the industrial district prototypes involv

the trend in the male female wage gap in the united states despite the rise in the feminist movement the enactment of equal opportunity legislation and the rapid increase in women s labor force participation a substantial sex differential in wages has persisted in the united states for at least 4 decades measured by hourly earnings of year round workers this wage gap was 31 in 1955 widened to a 35 37 range by the 1960s and early 1970s and then narrowed to 33 by 1982 this paper examines the extent to which changes in the characteristics of men and women in the labor force and other factors can account for the observed pattern the main finding is that increases in women s labor force participation were initially associated with a declining skill level of employed women relative to employed men where skill is measured by years of schooling and job tenure more recently the work experience of employed women has been increasing which helps account for the recent narrowing trend in the wage gap during the 1970s the wage gap probably woul have narrowed m

third degree price discrimination in the presence of congestion externality this paper analyzes third degree price discrimination of a monopoly airline in the presence of congestion externality when all markets are served the model features the business passenger and leisure passenger markets where business passengers exhibit a higher time valuation and a less price elastic demand than leisure passengers our main result is the identification of the time valuation effect of price discrimination which can work in the opposite direction as the well known output effect on welfare this time valuation effect clearly explains why discriminating prices can improve welfare even when this is associated with a reduction in aggregate output

monopoly price discrimination and demand curvature this paper presents a general analysis of the eects of monopolistic third degree price discrimination on welfare and output when all markets are served su cient conditions involving straightforward comparisons of the curvatures of the direct and inverse demand functions in the dierent mar kets are presented for discrimination to have negative or positive eects on

can job evaluation improve women s wages systematic job evaluation or comparable worth programmes are often seen as a method to increase the relative wages of women this paper examines whether this is the case using two job evaluation studies from the university sector in sweden two different evaluation schemes were used in these studies the general result found in this analysis is that complete implementation of the evaluation results would lead to an increase in women s relative wages by between 2 and 6 this finding is however not uniform in the sense that all women would gain and all men would lose results indicate that about two thirds of women are winners and one third losers while the figures for men are approximately the reverse assuming that the job evaluations give a correct measure of productivity the results are also used in an analysis of wage discrimination and the crowding effect the findings indicate a significant crowding effect but are less conclusive with regard to discrimination

collective learning and relational capital in local innovation processes capello r and faggian a 2005 collective learning and relational capital in local innovation processes regional studies39 75 87 innovative capacity of firms has traditionally been explained through intra firm characteristics in the more recent literature much emphasis has been put on determinants that are external to the firm these external factors called knowledge spillovers refer to the positive externalities that firms receive in terms of knowledge from the environment in which they operate geographers and industrial economists underline the importance of knowledge spillovers as the paper underlines an important difference exists between the approach of knowledge spillover and that of socialized processes of local knowledge creation developed by regional economists while in the former the mere probability of contacts explains local knowledge transfer in the latter the channels through which knowledge spills over a local area are clearly identified in the relational capital of the area

trends in earnings differentials by gender 1971 1981 this paper clarifies trends in relative earnings by sex over the decade 1971 1981 and decomposes these trends to determine which factors contributed to a decline and which to an increase our analyses are based upon data from the annual demographic files of the current population survey for 1972 and 1982 this study is unique in that it estimates earnings functions in each year which are corrected for selectivity bias it is found that such a correction markedly raises the progress of white women relative to men among blacks the impact of the selectivity bias correction was to substantially lower the relative earnings increase of women however the coefficients on the selectivity variable were not significant the findings suggest declining sex role specialization and discrimination as conventionally measured over the decade on the other hand contrary to expectations the total effect of variables reflecting the sex composition of the individuals occupation worked to widen the sex differential over the period the sex differential was also adversely affected by a decline in the relative return to education especially for whites authors modified

the third sector and the regional development of social capital birch k and whittam g the third sector and the regional development of social capital regional studies there is a growing academic and policy interest in the third sector and its potential impact on regional development a key aspect of the third sector is its role in regional development through the promotion of social capital however there is considerable debate around the definition of the third sector that limits one s understanding of its impact the paper first disentangles a number of ambiguities to clarify the distinctions between the concepts before then exploring the relationship between the regional development of social capital and the various aspects of the third sector finally uk policy agendas and initiatives are considered in light of the earlier discussion birch k et whittam g le secteur tertiaire et le developpement regional du capital social regional studies le monde universitaire et la politique s interessent de plus en plus au secteur tertiaire et a son impact potentiel s

price discrimination and social welfare studies the effect of price discrimination on social welfare using methods from duality theory features of the reservation model presented quasi linear utility and consumers surplus upper and lower bounds on welfare change bounds on welfare change with optimal price discrimination from ebsco

regional social capital why it matters malecki e j regional social capital why it matters regional studies social capital refers to a culture of interaction among people with productive economic outcomes social capital promotes regional learning both within a region and beyond as it reinforces openness to the ideas of others regional cultures vary in the degree to which people individually and within their organizations trust and interact with one another which is why regional outcomes vary innovation learning and entrepreneurship key processes of regional development take place largely within and among people as members of companies and territorial organizations innovative milieus industrial districts and knowledge economies are among the regions with extraordinary pools of social capital malecki e j

implementing comparable worth a survey of recent job evaluation studies during the 1980 s equal pay for comparable worth has emerged as a major legislative issue especially at the state and local level in the wake of increasing implementation of comparable worth in the public sector efforts have been made to estimate the probable effect of nationwide implementation of comparable worth type legislation on the earnings gap between women and men see for example george johnson and gary solon 1984 these analyses have generally concluded that a comprehensive comparable worth policy would have very little effect on the sex based earnings gap this paper offers alternative estimates of the effect of comparable worth on the male female earnings gap based upon examination of four statelevel comparable worth studies iowa michigan minnesota and washington

local social capital and entrepreneurship we aim to contribute to the analysis of the role that spacebound social capital plays in local regional entrepreneurship we compare social capital with other forms of capital the conclusion is that in the main social capital can be analyzed in the same way as other capital but it has some important special attributes with these attributes as starting point we sketch an outline model of how the spatially defined producer surplus and consumer surplus form a place surplus and of the role played by social capital in the creation of the producer surplus a rereading of schumpeter shows that he was aware of several aspects of what we denominate entrepreneurship inhibiting and facilitating aspects of social capital finally we discuss some formal economic modeling approaches to the theoretical relationship between social capital and entrepreneurship

differential pricing when costs differ a welfare analysis this article analyzes the welfare effects of monopoly differential pricing in the important but largely neglected case where costs of service differ across consumer groups cost based differential pricing is shown to increase total welfare and consumer welfare relative to uniform pricing for broad classes of demand functions even when total output falls or the output allocation between consumers worsens we discuss why cost based differential pricing tends to be more beneficial for consumers than its demand based counterpart third degree price discrimination we also provide sufficient conditions for welfare improving differential pricing when costs and demands differ across consumer groups

a note on the effect of cost changes on prices in a recent article in this journal sumner 1981 took an ingenious approach to estimating the level of monopoly power in the cigarette industry he noted that differences in marginal costs exist in the industry due to varying levels of state taxes the sales prices established will satisfy the equation p i liq l mr mc where p price and q the elasticity of demand for the product in question if elasticity is a constant observing the change in marginal cost and the change in price enables one to infer the elasticity of demand perceived by the firm elasticity could then be used as a proxy for the firm s market power this technique turns out to be of very limited applicability however because it is extremely sensitive to the functional form assumed for the demand curve consider the general problem of a firm facing constant marginal costs of c in maximizing profits the firm solves

comparable worth limited coverage and the exacerbation of inequality citing relevant judicial decisions the author argues that any application of the comparable worth remedy for gender discrimination is likely to cover only certain groups of workers most likely to be covered are women who work for governmental or large private employers in female dominated jobs and least likely to be covered are women who work for small private employers the implementation of comparable worth would cause the wages of noncovered workers to fall relative to those of covered workers and they might even fall absolutely an analysis of 1979 current population survey data suggests that the women most likely to gain from comparable worth are fewer in number better paid and subjected to no greater discrimination than the women most likely to lose

learning and protection of proprietary assets in strategic alliances building relational capital one of the main reasons that firms participate in alliances is to learn know how and capabilities from their alliance partners at the same time firms want to protect themselves from the opportunistic behavior of their partner to retain their own core proprietary assets most research has generally viewed the achievement of these objectives as mutually exclusive in contrast we provide empirical evidence using large sample survey data to show that when firms build relational capital in conjunction with an integrative approach to managing conflict they are able to achieve both objectives simultaneously relational capital based on mutual trust and interaction at the individual level between alliance partners creates a basis for learning and know how transfer across the exchange interface at the same time it curbs opportunistic behavior of alliance partners thus preventing the leakage of critical know how between them copyright 2000 john wiley sons ltd

a structural model of social security s disability determination process we estimate a multistage sequential logit model reflecting the structure of the disability determination process of the social security administration ssa the model is estimated using household survey information exact matched to ssa records on disability adjudications from 1989 to 1993 under program provisions different criteria dictate outcomes at different steps of the determination process we find that without the multistaged structural approach effects of many important health disability and vocational factors are not readily discernible as a result split sample predictions of overall allowance rates from the sequential model perform considerably better than do those for the conventional allowed denied logit regression

industrial clusters knowledge integration and performance abstract scholars examining the phenomenon of industrial clusters have begun to regard them as social communities specializing in efficient knowledge creation and transfer in addition to neo classical arguments focusing on the advantages of localization we seek to contribute to this body of work by developing the argument that both the degree of knowledge integration between an industrial cluster s agents and the scope of their economic activities are key dimensions behind their economic performance we present a model that incorporates a hypothesized relationship between these three dimensions and argue that a formal test of this hypothesis constitutes a promising area of future empirical research in this field

welfare increasing third degree price discrimination when demand functions in different markets are derived from distributions of reservation prices that differ only in their means conditions exist such that third degree price discrimination leads to greater total output and greater total welfare welfare is higher with discrimination than with a uniform price when demand functions are derived from logistic distributions with different means welfare and consumer surplus are higher with discrimination for demands derived from a distribution related to the pareto in general whether discrimination increases total output depends on demand being more convex in markets in which prices fall with discrimination than in those in which prices rise

male female wage differentials and policy responses without implicating them for any of the contents of the paper i am grateful to the following for helpful discussions or comments andrea beller university of illinois david bloom harvard and columnbia glen cain university of wisconsin ron ehrenberg cornell victor fuchs stanford bob gregory australian national university jonathan leonard university of california berkeley roberta robb brock university and paul weiler harvard financial support of the humanities and social sciences committee of the research board of the universitu of toronto is eratefullu acknowlede ed

the implementation process of comparable worth winners and losers this paper provides a unique opportunity to observe how a public policy affected the earnings of various interest groups at different stages of implementation specifically we examine how the earnings of women union members and supervisory and professional staff were affected by various proposed and implemented comparable worth pay plans in iowa we find that large relative gains to women in the original proposed plans were reduced as the process evolved as a result some of the original gains to women were redistributed to union members supervisors and professionals

markets in hierarchies organizational and market influences on gender inequality in a state pay system a pivotal issue in sociological theories of labor markets as well as legal and policy debates on pay equity is the relative importance of market and organizational forces in determining pay differences between jobs held predominantly by men and those held predominantly by women this article develops two models of the market organization relationship an administered efficiency model and a bureaucratic politics model quantitative analyses of individual and job level data in a state government pay system indicate that the administered efficiency model does not adequately explain malefemale earnings differences documentary testimonial and interview data strongly suggest the significance of bureaucratic politics in the pay determination process we conclude that market forces influence wage rates but are heavily mediated by organizational factors unrelated to efficiency considerations in the type of organization studied here

the effects of third degree price discrimination in oligopoly retail firms and restaurants commonly offer senior citizen discounts i suspect this practice is not motivated by altruism rather the behavior can be better explained as profit maximizing price discrimination these firms are setting a low price in a market which probably has high elasticity of demand but why should the demand of senior citizens be more elastic than average one possibility is that elderly people have below average income and they would not eat out if restaurant prices were high perhaps a more plausible explanation is that retired people simply have more time on their hands to spend commuting across town to take advantage of discounts the purpose of these discounts may then be to lure senior citizens away from other restaurants rather than to get them out of the house the analysis of third degree price discrimination has a long history a c pigou 1920 joan robinson 1933 and two articles on the subject have recently appeared in this review richard schmalensee 1981 hal varian 1985 the industry structure in these analyses is monopoly but an explicit model of some form of competition is obviously needed to study discriminatory discounts meant to attract customers from rival firms and even discounts meant to get people out of the house may have an oligopoly analysis which is qualitatively different from their monopoly anlysis in this paper i present a simple duopoly model of a differentiated products industry i show that a firm s price elasticity of demand in a market can be expressed as the sum of two parts the industry demand elasticity and the cross price elasticity the first measures the tendency of consumers in a market to stay home when the price goes up the second the tendency to switch suppliers in the monopoly case in which the crossprice elasticity is zero and the collusive case in which the cross price elasticity is irrelevant discrimination between markets is due to differences in industry demand elasticity in the noncooperative oligopoly case equilibrium price differentials can be accounted for both by differences in cross price elasticity as well as differences in industry demand elasticity total industry output when the firms can discriminate between two markets is compared to what it would be if discrimination were impossible which regime has larger output depends on the sum of the adjustedconcavity condition and the elasticity ratio condition the first predominates when the rival products are poor substitutes and the firms have approximate monopoly power while the second predominates at the other extreme where the products are close substitutes and the firms have almost no market power the adjusted concavity condition compares the relative curvature of demands in the two markets and was originally discovered by robinson 1933 in her analysis of monopoly price discrimination the elasticity ratio condition compares the relative difference in industry demand elasticity between the two markets with the relative difference in cross price elasticity according to the elasticity ratio condition a discriminatory discount due to high industry elasticity of demand would be more likely to increase total output than one due to high cross price elasticity the effect of discrimination on profit is also discussed the distinction made here department of economics university of wisconsin madison madison wi 53706 this paper is a revision of part of my doctoral dissertation i am grateful to steve matthews ken judd and john panzar for guidance in this research i also thank seminar participants at wisconsin the justice department and the 1986 econometric society meetings in new orleans and the discussant martin perry the excellent comments of the referees improved the exposition of the paper

the limits of price discrimination we analyze the welfare consequences of a monopolist having additional information about consumers tastes beyond the prior distribution the additional information can be used to charge dierent prices to dierent segments of the market i e carry out third degree price discrimination we show that the segmentation and pricing induced by the additional information can achieve every combi nation of consumer and producer surplus such that i consumer surplus is non negative ii producer surplus is at least as high as pro ts under the uniform monopoly price and iii total surplus does not exceed the e cient gains from trade as well as characterizing the welfare impact of price discrimination we examine the limits of how prices and quantities can change under price discrimination we also examine the limits of price discrimination in richer environments with quantity discrimination and limited ability to segment the market

third degree price discrimination and consumer surplus this paper considers the effects of monopoly third degree price discrimination on aggregate consumer surplus discrimination is likely to reduce surplus relative to that obtained with a uniform price but surplus can rise under reasonable conditions if the ratio of the pass through coefficient to the price elasticity at the uniform price is higher in the market with the higher price elasticity then surplus is larger with discrimination for a large set of demand functions the relatively high pass through coefficient implies a large price reduction in this market with logit demand functions surplus is higher with discrimination if pass through is above 0 5

third degree price discrimination in linear demand markets effects on number of markets served and social welfare author affiliation victor kaftal department of mathematical sciences 839 c old chemistry building university of cincinnati cincinnati oh 45221 usa victor kaftal uc edudebashis pal department of economics 1204 crosley tower university of cincinnati cincinnati oh 45221 debashis pal uc edu corresponding author acknowledgment we are grateful to rick harbaugh laura razzolini david sappington and two anonymous reviewers debashis pal is also grateful to taft research center for financial support 1 introductiondoes monopolistic third degree price discrimination reduce social welfare the question has continued to intrigue economists and policy makers for more than half a century the seminal work of robinson 1933 shows that if a monopolist with a constant marginal cost sells in two distinct and independent markets having linear demands then welfare falls with third degree price discrimination almost half a century later schmalensee 1981 reexamines robinson s result and demonstrates that for any number of markets with linear demands third degree price discrimination lowers welfare schmalensee 1981 also establishes more generally that price discrimination increases welfare only if it increases aggregate output subsequently using ingenious duality approaches varian 1985 and schwartz 1990 generalize the results for correlated demands and nonlinear marginal costs 1it is therefore well known that for linear market demands and constant marginal costs monopolistic third degree price discrimination indeed lowers welfare it is important to note however that the welfare reducing effect of third degree price discrimination is derived under a crucial assumption it is assumed that if the monopolist is forced to charge the same price in all markets uniform pricing the monopolist would sell a positive quantity in each market in a recent article cowan 2007 considers various forms of nonlinear demands and presents the necessary and sufficient and or sufficient conditions for price discrimination to reduce welfare cowan 2007 however also assumes that all markets are served under uniform pricing yet when this assumption does not hold the welfare effects of monopolistic third degree price discrimination turn out to be significantly more intricate observe that when all markets are not served under uniform pricing price discrimination may increase welfare because price discrimination may serve markets that would not be served under uniform pricing thus relative to uniform pricing price discrimination has two countervailing effects on welfare aggregate welfare goes down in those markets that are originally served under uniform pricing whereas welfare goes up in those markets that are not served under uniform pricing therefore the additional welfare from the new markets under price discrimination may offset any loss of welfare in the markets that are originally served under uniform pricing the point is strongly emphasized in schmalensee s 1981 seminal work in the context of prescription drugs an identical sentiment is recently echoed in varian 2000 in the context of two markets the possibility of price discrimination opening up new markets is first analyzed graphically by battalio and ekelund 1972 layson 1994 also considers two markets but includes nonlinear demands and presents conditions for opening of new markets based on endogenous features such as elasticities in the context of patent policy opening of new markets by price discrimination is explicitly incorporated by hausman and mackie mason 1988 using two markets they show that price discrimination by a patent holder is socially desirable in many cases because it allows the patent holder to open new markets there is a related literature in spatial economics beginning with greenhut and ohta 1972 and holahan 1975 that deals with spatial price discrimination and market opening with linear demand

direct welfare analysis of relative price regulation abstract the paper synthesizes and develops the welfare analysis of regulating relative prices for example price differences of which banning price discrimination is a special case welfare results are derived directly by convexity arguments using functions of welfare levels the method is also used to obtain results about e ects on consumer surplus

comparable worth wage adjustments and female employment in the state and local sector our paper simulates the likely effects of a comparable worth wage adjustment policy in the state and local sector on female employment in the sector the simulation is based on estimates of within occupation male female substitution and across occupation occupational employment substitution that we obtain using data from the 1980 census of population