intertemporal pricing and price discrimination a semiparametric hedonic analysis of the personal computer market we apply a smooth coefficient semiparametric model to a unique high frequency data set to examine the intertemporal pricing of personal computers furthermore we test whether firms charge differential component prices for their top performance personal computers and whether premium firms charge both a premium for all their computers and a premium for their top performance ones we find nonlinear effects in the pricing of personal computer components we also find that firms in general do not charge differential prices for the components of their top performance computers in addition high quality firms charge higher premia only for their most advanced products copyright 2006 john wiley sons ltd

identifiability of household equivalence scales through exact aggregation some empirical results general and commodity specific equivalence scales are estimated with canadian microdata the former are identifiable when exact aggregation is imposed however these identifiability restrictions can be tested as can homogeneity and symmetry in the model employed here exact aggregation is not rejected but homogeneity and symmetry are the estimated equivalence scales exhibit increasing returns to scale in family size they also rise with age exhibit strong regional effects and rural households scales are generally lower than those of urban households since scales are sensitive to imposing homogeneity and symmetry restrictions caution should be exercised in using such equivalence scales for policy purposes

the impact of international outsourcing on unionization and wages evidence from the apparel export sector in central america it is often assumed that manufacturing workers in developing countries as recipients of outsourced jobs would achieve economic benefits and organizational power the author argues that job growth in developing countries through outsourcing to competing firms has often actually resulted in declining unionization and lower wage rates relative to traditional integrated manufacturing firms using time series data on union membership from 1980 2003 for honduras and el salvador as well as 2004 household survey data for el salvador he examines the determinants of unionization rates and wages in the manufacturing sectors he finds that that competitive outsourcing hurts labor at the plant level in three ways 1 it reduces labor s strike leverage by geographically dispersing the production process 2 it increases the threat of plant mobility by decreasing plant level investments and 3 it increases labor costs relative to total costs which creates an incentive for employers to keep wages low and unions out

clusters chains and compliance corporate social responsibility and governance in football manufacturing in south asia a recent concern in the debate on corporate social responsibility csr in developing countries relates to the tension between demands for csr compliance found in many global value chains gvcs and the search for locally appropriate responses to these pressures in this context an emerging and relatively understudied area of interest relates to small firm industrial clusters local clusters offer the potential for local joint action and thus a basis for improving local compliance on csr through collective monitoring and local governance this article explores the interrelationship between global governance exercised through gvc ties and local governance via cluster institutions in ensuring compliance with csr pressures it undertakes a comparative analysis of two leading export oriented football manufacturing clusters in south asia that have both faced common challenges on child labour the article shows that both forms vertical and horizontal governance have played a part in shaping the response of the two clusters on child labour moreover these two distinct forms of governance have also led to quite differentiated outcomes in terms of forms of work organization and child labour monitoring this raises broader questions on how global csr demands can locally be better embedded and the conditions under which football stitchers labour in these new work forms

the influence of household composition on household expenditure patterns theory and spanish evidence a concept of demographic separability is proposed that formalizes the notion that there are groups of goods adult goods that have little or no relationship to specific classes of household demographics the numbers or ages of children that there exist adult goods demographically separable from children is a necessary but not sufficient condition for the validity of rothbarth s method for measuring child costs we propose two different methods for testing demographic separability and present results from a 1981 survey of spain the econometric evidence is in fair agreement with the theoretical presuppositions

responsible retailing the practice of csr in banana plantations in costa rica during the last 10 years or so a number of corporate social responsibility csr initiatives have been introduced in global supply chains which aim to improve the conditions of workers engaged in producing goods for export this article discusses the observations of csr in practice in the costa rican united kingdom uk banana chain the banana chain makes for an interesting case study because there are dominant corporate actors at each end who are in a position to influence the conditions experienced by workers on banana plantations at the top of the chain there are four major uk supermarket groups who control access to the retail market and as self appointed guardians of consumer interest are demanding that producers adopt more socially responsible practices at the other end banana production is highly integrated and controlled by three large north american agri businesses who have developed their own social and environmental certification programmes costa rica also makes for an interesting country to locate the study as it has a tradition of state led policies to protect worker rights yet in spite of csr commitments made by both supermarkets and producers that emphasise health and safety and the country s established labour law this article shows that there are problems for workers when they are forced to meet demanding production schedules furthermore it suggests that whilst supermarkets continue to drive down consumer prices and put pressure on producers to reduce costs a downward spiral of working conditions is created regardless of the csr policies in place however this article also identifies that changes to supermarket behaviour is possible when consumer trust is at stake

on measuring child costs with applications to poor countries the theoretical basis for measuring child costs is discussed and detailed consideration is given to two straightforward procedures for calculation engel s food share method and rothbarth s adult good method each of these methods embodies different definitions of child costs so that the same empirical evidence can generate quite different estimates depending on the method used it is shown that true costs are generally overstated by engel s method and understated by rothbarth s procedure although the latter unlike the former can provide a sensible starting point for cost measurement our estimates from sri lankan and indonesian data suggest that children cost their parents about 30 40 percent of what they spend on themselves

household equivalence scales and interpersonal comparisons recent papers have used household equivalence scales to construct measures of welfare inequality this procedure rests on an often implicit value judgement namely that if after adjustment for demographic characteristics two households are on the same indifference curve they are equally well off that value judgement is not compelling and there are situations in which it is ethically repugnant this is particularly likely if tastes are functions of past experience and income

poverty and household size the widely held view that larger families tend to be poorer in developing countries has influenced research and policy the scope for size economies in consumption cautions against this view we find that the correlation between poverty and size vanishes in pakistan when the size elasticity of the cost of living is about 0 6 this turns out to be the elasticity implied by a modified version of the food share method of setting scales by contrast some measures of child nutritional status indicate an elasticity of unity consideration of the weight attached to child versus adult welfare may help resolve the non robustness of demographic profiles of poverty excerpt

equivalent expenditure functions and expenditure dependent equivalence scales abstract this paper presents and investigates a new class of equivalent expenditure functions that is a generalization of the one that corresponds to exact independent of base equivalence scales it provides less restrictive household demands especially for children s goods and has associated equivalence scales that may depend on expenditure we show that under certain conditions equivalent expenditure functions and the associated expenditure dependent equivalence scales can be uniquely estimated from demand data we estimate them using canadian data and find that the resulting scales are both plausible and expenditure dependent the estimated equivalence scales for households with children decline significantly as expenditure increases

corporate responsibility in scandinavian supply chains this article examines corporate responsibility in the supply chains of four of the largest scandinavian multinational corporations ikea nokia novo nordisk and statoilhydro and offers two key findings first these scandinavian companies have all implemented responsible supply chain practices where suppliers in developing nations and the communities of these suppliers are engaged as key stakeholders and treated as partners second these supply chain practices all share the common bond of having honesty and the establishment of trust based relationships at their foundation as a result these scandinavian companies have developed a cooperative advantage in their ability to form successful long term partnerships in their respective supply chains

global apparel production and sweatshop labour can raising retail prices finance living wages this paper provides some empirical evidence on issues raised by the global antisweatshop movement we first consider the relationship between wage and employment growth finding no consistent trade off between them we then measure the share of labour costs in the production of garments in the us and mexico we find that the retail price increases necessary to absorb the costs of raising wages substantially are small well within the range of price increases that polls suggest us consumers are willing to pay we close by considering some implications of these results copyright 2004 oxford university press

non linearities and equivalence scales this paper focuses on the estimation and testing of equivalence scales in the context of a demand system with nonline ar logarithmic expenditure effects in its budget share equations the authors show that such nonlinearity enables one to identify the scal es without demographic separability restrictions on preferences and to avoid false rejection of the hypothesis that the scales are independ ent of the base utility level the empirical analysis is based on micro data drawn from the u k family expenditure survey copyright 1993 by royal economic society

equivalence scales in a rank 3 demand system abstract in the context of a rank 3 demand system equivalence scales measuring the cost of demographic characteristics independently of the base utility level can be identified from cross section data without demographic separability restrictions although this can also be achieved with a rank 2 demand system that contains a nonlinear log expenditure term in its budget shares tests performed in a nested framework suggest that the rank 3 demand system approach is empirically superior the informative structure of the rank 3 demand system is used to estimate a detailed pattern of demographic costs including the cost of single parenthood and economies of scale within the family

contemporaneous and intertemporal child costs equivalent expenditure vs equivalent income scales abstract parents may provide for their children by drawing on savings or borrowing as well as by reducing current consumption this means that child costs may be partly paid from reducing consumption in periods when the children themselves are not in the family static comparisons of consumption costs between households with and without children are therefore affected by the extent to which parents are willing and able to meet child costs through intertemporal transfers this paper analyses the implications of this argument for the estimation of adult equivalent scales and provides empirical illustrations using individual household data

suppliers compliance with mncs codes of conduct behind the scenes at chinese toy suppliers despite increased academic and practitioner interest in codes of conduct there has been little research into the actual compliance of suppliers in developing countries with the codes of conduct of multinational corporations mncs this paper addresses this lack by analysing chinese suppliers level of compliance with swedish toy retailers codes of conduct based on unannounced and unofficial interviews with employees of chinese suppliers the study shows that all of the nine studied suppliers breached some of the standards in the toy retailers codes with over two thirds of the suppliers not complying with the majority of the studied standards while there are different explanations of this lack of compliance the main explanation seems to be that chinese suppliers successfully deceive toy retailers monitoring organisations by decoupling the formal monitored part of their organisation from the actual operational part of their organisation the paper concludes with a discussion of how to increase compliance with mncs codes of conduct

life cycle expenditure allocations and the consumption costs of children abstract in this paper we assess whether it is changing needs or intertemporal substitution that dominate household expenditure responses to the presence of children over the life cycle we construct lifetime expenditure paths for households with different demographic profiles and consider the shape of these paths and some possible implications for welfare measures simulated expenditure paths based on consistent single period and multi period models indicate that it is indeed changing needs that dominate such paths in periods when children are present in the household however allowing for intertemporal substitution is still shown to be important since it can introduce new information relevant to the calculation of household welfare

on estimating the cost of characteristics indices from consumer demand analysis we examine the information content of relative equivalence scales using a multiperiod framework and argue that in the absence of independence of base ib these scales can be uniquely identified from demand analysis only when the transformations of preferences through time are the same for all household types a property termed as intertemporally invariant base iib utility restrictions imposed by iib on conditional demands are tested empirically and found rejected within the context of a rank 3 demand system applied to individual household data drawn from the u k family expenditure survey 1970 86 welfare implications of false iib assumptions are also empirically investigated jel classification d1 a propos de l estimation du cout des indices caracteristiques a partir de l analyse de la demande des consommateur ce memoire examine le contenu informationnel des echelles d equivalence relative en utilisant un cadre d analyse sur plusieurs periodes et suggere que en l absence d une independance de la base ib ces echelles peuvent etre identifiees d une maniere univoque seulement si les transformations de preferences dans le temps sont les memes pour tous les types de menages on nomme cette propriete utilite de base invariante dans le temps iib les restrictions verifiables imposees par iib sur les demandes conditionnelles sont verifiees empiriquement et sont rejetees dans le contexte d un systeme de demande de rang 3 applique aux donnees des menages individuels dans une etude des depenses des menages de la grande bretagne 1970 86 les implications de faux postulats iib sont analysees empiriquement

equivalence scales and the costs of disability abstract the impact of disability on household welfare is estimated by equivalence scales using data from the 1986 1987 fes disability survey three methods of identifying scales from cross section data are considered these imply a series of restrictions that are tested on quadratic logarithmic engel curves the results indicate that there are substantial consumption costs associated with physical disability

governance and trade in fresh vegetables the impact of uk supermarkets on the african horticulture industry production of fresh vegetables for export has grown rapidly in a number of countries in sub saharan africa over the last decade this trade brings producers and exporters based in africa together with importers and retailers in europe large retailers in europe play a decisive role in structuring the production and processing of fresh vegetables exported from africa the requirements they specify for cost quality delivery product variety innovation food safety and quality systems help top determine what types of producers and processors are able to gain access to the fresh vegetables chain and the activities they must carry out the control over the fresh vegetables trade exercised by uk supermarkets has clear consequences for inclusion and exclusion of producers and exporters of differing types and for the long term prospects for the fresh vegetables industry in the two major exporting countries studied kenya and zimbabwe

impacts of corporate code of conduct on labor standards a case study of reebok s athletic footwear supplier factory in china this study examines the social impacts of labor related corporate social responsibility csr policies or corporate codes of conduct on upholding labor standards through a case study of csr discourses and codes implementation of reebok a leading branded company enjoying a high profiled image for its human rights achievement in a large taiwanese invested athletic footwear factory located in south china i find although implementation of reebok labor related codes has resulted in a race to ethical and legal minimum labor standards when notoriously inhumane and seriously illegal labor rights abuses were curbed chinese workers were forced to work harder and faster but earned less payment and the employee elected trade union installed through codes implementation operated more like a company union rather than an autonomous workers organization representing worker interests in order to explain the paradoxical effects of reebok labor related codes on labor standards i argue the result is determined by both structural forces and agency related factors embedded in industrial national and local contexts to put it shortly i find the effectiveness of reebok labor related codes is constrained not only by unsolved tension between reebok s impetus for profit maximization and commitment to workers human rights but also by hard nosed competition realities at marketplace and chinese government s insufficient protection of labor rights despite drawing merely from a single case study these findings illuminate key determinants inhibiting the effectiveness of labor related csr policies or codes in upholding labor standards and hence two possible way outs of the deadlock 1 sharing cost for improving labor standards among key players in global supply chain and 2 combining regulatory power of voluntary codes and compulsory state legislations

greener than thou the political economy of fish ecolabeling and its local manifestations in south africa summary developing country governments and industries have been reluctant to support ecolabels fearing their potentially protectionist effects this reluctance has been countered by international organizations such as fao and ecolabel initiatives with assurances of transparency non discrimination and technical assistance the analysis of the marine stewardship council msc label shows that developing country fisheries and small scale ones in particular have been marginalized furthermore the msc certification of the hake industry in south africa illustrates that ecolabeling is sought in the context of competitive pressures and specific political economies not simply on the basis of value free science and systemic management this article concludes that developing country producers need dedicated systems of standards and verification procedures not only special flexibilities

the role of global dynamic managerial capability in the pursuit of international strategy and superior performance we develop the construct of global dynamic managerial capability gdmc and identify its underlying sources 1 international human capital 2 international social capital and 3 international managerial cognitions consistent with dynamic capabilities view and upper echelons theory we suggest that gdmc leads to global asset orchestration which in turn results in superior company performance in a two stage process first gdmc leads companies to adopt global strategies that spread the risk of internationalizations across different entry modes and geographic regions second the re configuration of global assets positively influences subsequent firm performance and thus mediates the relationship between gdmc and performance recognizing the triad of factors that form global dynamic managerial capability is crucial when selecting future managers of multinational corporations hence firms with increasing international exposure both domestically via foreign competition and internationally via foreign market presence may seek to compose their upper echelons with a suitable combination of international human and social capital as well as internationally diverse cognitions in the pursuit of sustained competitive advantage

mattel inc global manufacturing principles gmp a life cycle analysis of a company based code of conduct in the toy industry over the last 20 years multinational corporations mncs have been confronted with accusations of abuse of market power and unfair and unethical business conduct especially as it relates to their overseas operations and supply chain management these accusations include among others worker exploitation in terms of unfairly low wages excessive work hours and unsafe work environment pollution and contamination of air ground water and land resources and undermining the ability of natural government to protect the well being of their citizens mncs have responded to these accusations by creating voluntary codes of conduct which commit them to specific standards for addressing these issues these codes are created at both the industry wide and the individual company level unfortunately these codes have generated little credibility and public trust because their compliance claims cannot be independently verified and they lack transparency and full public disclosure in this article we present a case study of the voluntary code of conduct by mattel inc the world s largest toy company the code called the global manufacturing principles gmp confronts the general criticism leveled against voluntary codes of conduct by a creating detailed standards of compliance b independent external monitoring of the company s compliance with its code of conduct and c making full and uncensored public disclosure of the audit findings and company s response in terms of remedial action we present a detailed account of how mattel s voluntary code of conduct was created implemented and ultimately abandoned over 9 years we provide an evaluative analysis of the company s gmp compliance throughout its life span which suggests a bell shaped curve where early top management commitments were met with pockets of resistance from operational groups who were concerned about balancing gmp compliance efforts with traditional performance criteria the early stage response from mattel s top management was quick and supported with the requisite resources as a result the compliance process accelerated becoming increasingly more robust and effective the success of code compliance and increased transparency in public disclosure energized field managers with a sense of professional satisfaction and publicly recognized accomplishments the decline in gmp compliance was equally steep when all the easily attainable targets had been reached at the company operated plants addressing vendor plants compliance presented a new set of challenges which taxed corporate resources and management commitment it would seem that value based and ethics oriented considerations i e doing the right thing for the right reason were no longer the driving force for mattel s management mattel did not see any economic benefit from its proactive stance when competitors did not seem to suffer adverse consequences for not following suit the final contributing factor to the code s abandonment was a widely publicized series of product recalls which absorbed top management s attention

the rank and model specification of demand systems an empirical analysis using united states microdata a rank three demand system is estimated with united states consumer expenditure survey microdata a unique price data set is also used which permits the analysis of effects of systematic errors in price variables it is found that errors in price variables bias test results for the rank three hypothesis in particular towards rejection other test results are affected to a lesser extent estimating smaller systems of demand equations even when conditioning on excluded goods yields significantly different results another important conclusion is that model specification is statistically significantly different for households of varying family sizes and housing tenure statuses jel classifications c31 d12 le rang et la specification du modele des systemes de demande une analyse empirique utilisant des microdonnees americaines on calibre un systeme de demande de rang trois a l aide de microdonnees americaines tirees de la united states consumer expenditures survey un ensemble unique de prix est utilise afin de permettre l analyse des effets d erreurs systematiques dans les variables de prix il appert que les erreurs dans les variables de prix distorsionnent les resultats du test de l hypothese de rang trois en faveur d un rejet d autres resultats de tests sont affectes a un moindre degre si l on calibre de plus petits systemes d equations de demande meme en posant des conditions sur des biens exclus des resultats qui different de maniere significative s ensuivent une autre conclusion importante est que la specification du modele est differente de maniere statistiquement significative pour les menages selon la taille de la famille et le statut domiciliaire

multi stakeholder regulation privatizing or socializing global labor standards summary this paper evaluates leading non governmental labor regulation initiatives in the united states and europe it comparatively assesses the codes of conduct and monitoring systems within these initiatives discusses their different models of regulation and proposes criteria for evaluating their effectiveness it identifies critical factors which appear to support more effective non governmental regulation such as substantive participation of local stakeholders public transparency of methods and findings and mechanisms that bring market pressures to bear on multi national corporations and simultaneously support processes of multi stakeholder problem solving within factories and global supply chains

children and household economic behavior this paper looks at some of the methodological issues that arise in modeling the effects of children on household behavior and presents some estimates for selected areas for our purposes household behavior will be taken to refer to household decisions on labor supply the allocation of expenditure to different periods and the decision as to what to do with the difference between income and expenditure i shall be concerned mainly with the effects of dependent children and i restrict attention largely to western societies excerpt

estimates of semiparametric equivalence scales within the semiparametric framework introduced by pendakur 1999 we introduce a new loss function to estimate equivalence scales this loss function uses all available information from the total expenditures of both the reference and nonreference households and as such it produces more reliable estimates using canadian family expenditure data for 1996 we apply this loss function to obtain equivalence scale estimates for a variety of expenditure share categories such as food fuel and clothing copyright 2006 john wiley sons ltd

what is the income cost of a child exact equivalence scales for canadian two parent families this note asks how much income does it take to preserve the prechild standard of living for all members of the postchild household equivalence scales for canadian two parent families are estimated using a complete demand system approach and imposing the condition of equiva lence scale exactness independent of a base blackorby and donaldson 1993 lewbel 1989 this approach has several advantages 1 it is formally grounded in economic theory 2 the income required for children can be estimated without ignoring the well being of the children themselves 3 the estimates obtained appear reasonable relative to others currently available in the literature

mapping research topics and theories in private regulation for sustainability in global value chains the globalization of production and trade has contributed to the rise in complex global value chains where the reach of state regulation is limited as an alternative private regulation developed and administered by companies industry associations and nongovernmental organizations has emerged to safeguard economic environmental and social sustainability in producer countries and along the value chain the academic literature on private regulation in global value chains has grown over the last decade but currently few major reviews of the research have been undertaken this paper examines peer reviewed research in the relevant disciplines published in academic journals up to december 2011 our goal is to identify and classify the topics and theories in the global value chain literature we conclude that the number of articles explicitly examining private regulation in a global value chain context is relatively small when considering the importance and growth of these chains in the world s economy we also conclude that agriculture forestry and apparel manufacturing are the most often studied economic sectors in contrast other sectors such as the information communication and technology with their complex global value chains and often problematic environmental and social conditions are understudied

testing the rank of engel curves with endogenous expenditure abstract we find that the endogeneity of consumer expenditure tends to increase the estimated rank of engel curves this result based on nonparametric procedure is in line with previous results obtained in the context of parametric specifications

what do we learn about consumer demand patterns from micro data the aim of this paper is to assess the importance of using micro level data in the econometric analysis of consumer demand to do this we utilize a time series of repeated cross sections covering some 4 000 households in each of 15 years employing a number of different aggregation procedures we conclude that aggregate data alone are unlikely to produce reliable estimates of structural price and income coefficients however once certain aggregation factors as well as trend and seasonal components are included an aggregate model is not necessarily outperformed across all demand equations in terms of forecasting ability jel d12 c52 c31 the purpose of this paper is to develop a complete consumer demand system based on a time series of individual household data and to use it to measure the biases introduced into the study of consumer de mand behavior when aggregate data are used in place of the appropriate microeco nomic data we assess the suitability of ag gregate data through the impact on income and price elasticities and by evaluating the ability of both micro and aggregate based models to forecast aggregate consumer de mand the biases introduced by the use of aggregate data depend upon the way that household characteristics interact with in come and price effects and on departures of demand systems from linearity we explore the structure of microeconomic demand sys tems and the role of household characteris tics in the behavior of consumer demand both for the light this may shed on the pattern of future demands and for the im plications this behavior has for issues of aggregation consumer demand patterns typically found in micro data sets vary considerably across households with different household characteristics and with different levels of income we model this variability by making intercept and slope parameters in the budget share equations of our demand sys tem depend on household characteristics and by allowing for nonlinear total log expenditure terms in fact in theory consistent demand systems it is total ex penditure rather than disposable income that is allocated across goods we find that this general framework leads to a well specified data coherent demand system which is a quadratic extension of the popu lar almost ideal model of angus s deaton and john muellbauer 1980 the micro level estimates are shown to be sensitive to the treatment of endogeneity of total expen diture and to the specification of interaction terms with household characteristics in ad dition this specification is also shown to possess many attractive features for the evaluation of aggregate models

labour leverage in global value chains the role of interdependencies and multi level dynamics the global segmentation of production and distribution has resulted in highly complex global value chains gvcs where vertical and horizontal dynamics are equally important in determining working conditions and providing points of leverage for labour borrowing notions of multi level governance we propose an analytical framework for describing and explaining success and failure of labour agency when attempting to improve working conditions along gvcs our starting point is that the high complexity of gvcs and the absence of a global overarching authority have been balanced by the emergence of governance mechanisms of different forms and at different levels an assessment of these mechanisms which emphasize process over institutions reveals how different types of interactions and interdependencies along gvcs impact on labour s use of power we argue that in order to fully situate labour agency within governance debates any future research agenda needs to be driven by micro level bottom up approaches

from chain liability to chain responsibility this article examines whether the involvement of stakeholders in the design of corporate codes of conduct leads to a higher implementation likelihood of the code the empirical focus is on occupational safety and health osh the article compares the inclusion of osh issues in the codes of conduct of 30 companies involved in international framework agreements ifas agreed upon by trade unions and multinational enterprises with those of a benchmark sample of 38 leading multinational enterprises in comparable industries it is found that codes of the ifa group have a higher implementation likelihood in osh than the codes of the benchmark group further european firms culturally more used to stakeholder involvement score higher than their us and japanese competitors and hence are more capable of addressing the safety and health issues in international supply chains the implementation likelihood of codes seems closely related to the type of corporate csr approach