credit constraints and the phenomenon of child labor abstract this paper develops an overlapping generations general equilibrium model where inefficient child labor arises due to credit constraints it derives a positive relationship between inequality in the distribution of income and the incidence of child labor looking at policy implications it shows how trade sanctions against countries using child labor may fail to reduce the incidence of child labor it discusses some alternative policies to reduce the incidence of child labor

international technology transfer and the technology gap abstract we build a quality ladders product cycle model that explores how the quality of technology transferred through foreign direct investment fdi is linked to innovation and imitation when the absorptive capacity of ldcs is limited successful imitation of low quality levels makes fdi involving high quality levels possible through reduction of the technology gap a subsidy to imitation or a tax on low quality fdi production encourages imitation relative to innovation thus releasing the constraint faced by foreign firms seeking to produce in the south these forces that stimulate high quality fdi raise southern welfare through lower prices faster innovation and higher wages

asymmetric international minimum quality standards and vertical differentiation this paper develops a two country model of a vertically differentiated duopoly that spans two countries which are not integrated without additional costs equilibrium qualities prices profits and consumer s surplus are compared when 1 minimum quality standards are identical and 2 standards differ across countries both markets turn out to be connected by the quality choices of the two firms both firms prices in the two countries and their profits are lower whereas consumer s surplus and the two offered qualities are higher in both countries if no firm is forced out of the country s market with the more demanding minimum quality standard copyright 1995 by blackwell publishing ltd

the induced innovation hypothesis and energy saving technological change we develop a methodology for testing hicks s induced innovation hypothesis by estimating a product characteristics model of energy using consumer durables augmenting the hypothesis to allow for the ine uence of government regulations for the products we explored the evidence suggests that i the rate of overall innovation was independent of energy prices and regulations ii the direction of innovation was responsive to energy price changes for some products but not for others iii energy price changes induced changes in the subset of technically feasible models that were offered for sale iv this responsiveness increased substantially during the period after energy efficiency product labeling was required and v nonetheless a sizable portion of efficiency improvements were autonomous

toward a theoretical model of voluntary overcompliance abstract we explain why some firms voluntarily overcomply with environmental regulation in our model all consumers value environmental quality but differ in their willingness to pay which depends on their income levels publicly available information on environmental performance of firms enables consumers to identify clean firms firms participate in a two stage duopoly game where they first choose their levels of cleaning technology and next engage in price competition the market gets segmented by income levels a minimum standard binding on the dirty firm has the effect of improving the performance of the cleaner firm a subsidy obtains the same competitive outcome

globalization r d and the ipod cycle abstract this paper constructs a dynamic scale free north south model of trade with endogenous innovation in the north a local sourcing targeted race and an outsourcing targeted r d race take place simultaneously within each industry the former results in the winner firm manufacturing in the north while the latter culminates in the winner firm s immediate outsourcing to the south generating the ipod cycle we study three aspects of globalization reductions in the resource requirement in outsourcing targeted r d increased subsidies to outsourced production and reduced southern imitation due to trips each event boosts outsourcing targeted r d and increases the frequency of ipod cycles the aggregate innovation rate rises despite a possible fall in local sourcing targeted r d and the north south relative wage decreases

the economics of child labor if child labor as a mass phenomenon occurs not because of parental selfishness but because of the parents concern for the household s survival the popular argument for banning child labor loses much of its force however this assumption about parental decision making coupled with the assumption of substitutability in production between child and adult labor could result in multiple equilibria in the labor market with one equilibrium where children work and another where adult wage is high and children do not work the paper establishes this result and discusses its policy implications copyright 1998 by american economic association

abstinence from child labor and profit seeking abstract opponents of child labor suggest that demand driven mechanisms can eliminate such practices if consumers prefer adult labor products they suggest that labeling will drive out child labor products i show that under bertrand competition even with complete information this is unlikely when products are differentiated only by labor type such a scheme requires at least three firms and child labor costs at least as large as adult labor costs with additional lines of differentiation child labor is eliminated only when the adult labor costs are smaller thus while labeling may reduce child labor it is unlikely to eliminate it

quality leadership when regulatory standards are forthcoming in many markets governments set minimum quality standards while some sellers compete on the basis of quality by exceeding them such quality leadership strategies often win public acclaim especially when they involve environmental attributes using a duopoly model of vertical product differentiation we show that if the high quality firm can commit to a quality level before regulations are promulgated it induces the regulator to weaken standards and welfare falls our results raise doubts about the social benefits of corporate self regulation and highlight the dangers of lengthy delays between legislative mandates for new regulations and their implementation

income distribution and macroeconomics this paper analyzes the role of wealth distribution in macroeconomics through investment in human capital it is shown that in the presence of credit markets imperfections and indivisibilities in investment in human capital the initial distribution of wealth affects aggregate output and investment both in the short and in the long run as there are multiple steady states this paper therefore provides an additional explanation for the persistent differences in per capita output across countries furthermore the paper shows that cross country differences in macroeconomic adjustment to aggregate shocks can be attributed among other factors to differences in wealth and income distribution across countries

child labor in the global economy few issues in developing countries draw as much popular attention as child labor this paper begins by quantifying the extent and main characteristics of child labor it then considers the evidence on a range of issues about child labor fundamentally child labor is a symptom of poverty low income and poor institutions are driving forces behind the prevalence of child labor worldwide this study concludes by assessing the policy options to reduce worldwide child labor

child labor cause consequence and cure with remarks on international labor standards although the literature on child labor is enormous it lacks a common theoretical foundation in this paper analytical survey of this field is provided keeping in mind that this is an area where the primary reason for theorizing is ultimately to influence policy overall it is noted that the literature on child labor is an illustration of abundance and anarchy although empirical writings on child labor are numerous they are not usually founded on theory it is argued that there is much that can be done in curbing the issue of child labor several theories were studied in this paper including collaborative intervention such efforts include public action which alters the economic environment such that the parents of their own accord prefer to withdraw the child from labor force another strategy involves the government a legal intervention is enforcing a total ban on the subject although such interventions have good intentions some of them may not be feasible in general it is better to take economy wide measures against child labor and if there is to be a sector specific ban it should be based on the working conditions of that sector rather than the destination of the goods

intellectual property rights and foreign direct investment abstract this paper develops a product cycle model with endogenous innovation imitation and foreign direct investment fdi we use this model to determine how stronger intellectual property rights ipr protection in the south affects innovation imitation and fdi we find that stronger ipr protection keeps multinationals safer from imitation but no more so than northern firms instead the increased difficulty of imitation generates resource wasting and imitation disincentive effects that reduce both fdi and innovation the greater resources absorbed in imitation crowd out fdi reduced fdi then transmits resource scarcity in the south back to the north and consequently contracts innovation

is product boycott a good idea for controlling child labor a theoretical investigation abstract a popular form of action to curb child labor and uphold international labor standards in general is a product boycott by consumers there are labeling agencies that inform us if for instance a carpet or a hand stitched soccer ball is free of child labor the presence of a consumer boycott will typically mean that products tainted by child labor will command a lower price on the market than ones certified to be untainted it is popularly presumed that such consumer activism is desirable the paper formally investigates this presumption and shows that consumer product boycotts can in a wide class of situations have an adverse reaction that causes child labor to rise rather than fall this happens under weak and plausible assumptions hence there has to be much greater caution in the use of consumer activism and one has to have much more detailed information about the context where child labor occurs before using a boycott

strategic choice of quality when quality is costly the persistence of the high quality advantage in a two firm two stage model of vertical product differentiation i show that for every convex fixed cost function of quality the firm that chooses the higher quality at the first stage earns the higher profits the result holds for the pure strategy equilibrium in the simultaneous quality game and it holds as well if firms choose their qualities in sequential order

the regulating power market on the nordic power exchange nord pool an econometric analysis abstract what differentiates the structure of nord pool from other power exchanges around the world is the way the balance from the spot market is maintained until the actual physical delivery takes place via the regulating power market in norway this paper reveals the pattern of the prices on the regulating power market by analysing the cost of being unable to fulfil the commitments made on the spot market some power producers with unpredictable fluctuations e g wind will need to buy regulation services the disclosed pattern implies that these producers must pay a limited premium of readiness in addition to the spot price this premium is independent of the amount of regulation the level of the premium of readiness for down regulation is shown to be strongly influenced by the level of the spot price on the other hand it is demonstrated that the premium for up regulation is less correlated to the spot price furthermore it is found that the amount of regulation affects the price of regulating power for up regulation more strongly than it does for down regulation the disclosed cost of using the regulating power market is a quadratic function of the amount of regulation this asymmetric cost may encourage bidders with fluctuating production to be more strategic in their way of bidding on the spot market by using such strategies the extra costs for example wind power needed to counter unpredictable fluctuations may be limited

epa s voluntary 33 50 program impact on toxic releases and economic performance of firms abstract this paper examines the motivations for participation in the voluntary 33 50 program and the program s impact on the toxic releases and economic performance of firms in the u s chemical industry it demonstrates that the benefits due to public recognition and the potentially avoided costs of liabilities and compliance under mandatory environmental regulations provide strong incentives for participation after controlling for sample selection bias and the impact of other firm specific characteristics this paper shows that program participation led to a statistically significant decline in toxic releases over the period 1991 93 the program also had a statistically significant negative impact on the current return on investment of firms but its impact on the expected long run profitability of firms was positive and statistically significant

multinational firms and technology transfer the authors construct an oligopoly model in which a multinational firm has a technology superior to those of local firms in the host country workers employed by the multinational acquire knowledge of the superior technology and can spread their knowledge to local firms by switching employers the multinational chooses to pay a wage premium to prevent local firms from hiring away its workers if the local firms are sufficiently disadvantaged or if there are enough local firms diffusion of the superior technology benefits local firms at the expense of workers whose wages suffer the host government might have an incentive to attract foreign direct investment even when technology transfer will not result because of the wage premium local employees of the multinational firm earn also foreign direct investment with technology transfer may reduce the total economic rent the host country earns

foreign direct investment and decoupling between energy and gross domestic product in developing countries on a sample of 20 developing countries we noticed a clear decline in the energy intensity as foreign direct investment increases the reason for that probably is the use of modern technologies that came with foreign direct investment i e a leapfrogging over the old fashioned traditional technologies in use in these countries

on the interaction between vertical and horizontal product differentiation an application to banking the author studies the conditions under which banks offer remote access note there exists interaction between location and taste for remote access offering remote access is an instrument to partially segment depositors according to their taste for that technology the interaction between location and taste for remote access enhances this effect different equilibria emerge as the result of two effects first introducing remote access steals depositors from the opponent as the product specification becomes more appealing second deposit rate competition is affected as remote access determines the substitutability of banks copyright 1996 by blackwell publishing ltd

are labels effective against child labor abstract in this paper we investigate the impact of introducing a label certifying the absence of child labor in the export production of the south when most eligible producers in the south can obtain the label its impact is considerably reduced by a displacement effect whereby adult workers replace children in the export sector while children replace adults in the domestic sector the label is then unable to create a price differential in the south between goods produced under the label and those produced without it when only a small fraction of eligible producers have access to the label the south exports both labeled and unlabeled goods to the north in this case labeled producers generally gain while those without a label generally loose from the introduction of the label ex ante welfare may fall in the south if the probability of getting a label when one qualifies is small the impact on child labor is in general ambiguous

information and the provision of quality differentiated products governments often enact information provision policies to overcome asymmetric information of product qualities we show that increasing awareness among consumers of the quality of a good can but will not always encourage firms to produce goods with higher levels of quality even if product qualities increase social welfare may fall as information provision results in too much product differentiation we show that the effectiveness of emission taxes and output subsidies are affected by the level of consumer knowledge of product quality and we identify conditions under which information provision is welfare enhancing relative to these price instruments jel l15 q58 i introduction in the past 20 years consumers have become increasinglyconscious ofthe undesirable health and safety attributes of the products they consume and surveys suggest that a growing percentage of consumers are willing to pay more for higher quality products such as organic foods and household cleaners and detergents that contain less toxic ingredients guber 2003 other high quality products facing higher demand include energy efficient products like extended life lightbulbs and improved home insulation often these highquality products provide private benefits that are excludable to buyers as well as public benefits that are nonrival and nonexcludable for example reduced pesticide and chemical residue on food may lower the risk of cancer while also reducing contaminated run off that degrades ground and surface water quality extended life lightbulbs and improved home insulation may reduce an individual s utility bill while also reducing greenhouse gas emissions from lower energy consumption although interest in these types of high quality productsisgrowing demand isoften relatively small market shares of organic produce for

frontrunners and laggards the strategy of environmental regulation under uncertainty the extant literature on the political economy of environmental regulation does not provide a unified theoretical explanation for three salient stylized facts first companies voluntarily invest to reduce the environmental burden that they cause under threat of regulation second ex ante estimates of the compliance cost tend to be systematically higher than ex post estimates finally regulators use limited information provided by the industry i construct a game theoretic model of environmental regulation under uncertainty with a benevolent regulator in equilibrium companies undertake voluntary action to induce regulation that raises barriers to entry this profit driven behavior is not always socially detrimental however as the regulator obtains a credible commitment to production and a more accurate estimate of the compliance cost additionally the results provide a selection explanation for the mismatch between ex ante and ex post cost estimates if companies condition compliance on the installation cost only low cost companies install in equilibrium the analysis combines regulatory capture with social welfare maximization to explain the curious combination of voluntary action and low ex post compliance cost without serious information collection by the regulator

self regulation taxation and public voluntary environmental agreements an increasingly popular instrument for solving environmental problems is the public voluntary agreement va in which government offers technical assistance and positive publicity to firms that reach certain environmental goals prior papers treat such agreements as a superior low cost instrument that can be used to preempt a threat of traditional inefficient regulation we present a more general model in which public vas may instead be weak tools used when political opposition makes environmental taxes infeasible we explore the conditions under which taxes public vas and unilateral industry actions are to be expected and the welfare implications of the various instruments notably we also show that welfare may be reduced by the introduction of public vas 2002 elsevier b v all rights reserved

power tac a competitive economic simulation of the smart grid sustainable energy systems of the future will need more than efficient clean low cost renewable energy sources they will also need efficient price signals that motivate sustainable energy consumption as well as a better real time alignment of energy demand and supply the power trading agent competition power tac is a rich competitive simulation of future retail power markets this simulation will help us to understand the dynamics of customer and retailer decision making and the robustness of market designs by stimulating researchers to develop broker agents and benchmark them against each other this will provide compelling actionable information for policymakers and industry leaders we describe the competition scenario in detail and we demonstrate behaviors that arise from the interaction of customer and broker models

income inequality human capital accumulation and economic performance we show that greater income equality implies higher human capital accumulation and economic performance in an overlapping generations model with heterogeneity in income and talent given liquidity constraints and declining marginal utility individuals with a given level of talent receive education if their initial income is higher than a threshold level and the threshold is lower for more talented individuals assuming the more talented create more human capital when educated greater initial income equality for one generation then imply not only higher aggregate human capital accumulated by that generation but an improvement in all subsequent generations initial income distributions

morphological analysis of energy services paving the way to quality differentiation in the power sector abstract the activation of the still predominantly passive demand side is necessary to further guarantee a stable power system in the short term and ensure capacity adequacy in the long run a system with a high share of generators with nearly no marginal costs requires new services that facilitate transmitting the right economic signals to the system stakeholders to this end we refine the notion of energy services and propose a framework to systematically design quality differentiated energy services for consumers this approach facilitates a value based economic assessment of energy services that deviates from the marginal cost paradigm we further illustrate pricing options for these new energy service products and outline infrastructural needs and additional use case specific product properties moreover we discuss how the morphological approach can be formalised using a mathematical programming formulation and introduce a complexity measure that facilitates assessing potential adoption obstacles for end consumers additionally we illustrate the practical applicability of these findings by using a prototypical implementation of a decision support system to foster differentiated energy services we recommend a more lenient regulatory regime lowering the barriers for new market entrants

innovation and wage effects of international outsourcing abstract we investigate the effects of increased outsourcing of production to a low wage country such international outsourcing lowers the marginal cost of production and thus increases profits creating greater incentives for innovation a reduction in the resource requirement in adapting technology relative to improving products or an expansion in the portion of production that can be outsourced generates a greater extent of international outsourcing a lower relative wage and a faster rate of innovation an increase in production taxes in the north production subsidies in the south or a subsidy to adapting technologies has similar effects

private voluntary standards in the food system the perspective of major food retailers in oecd countries abstract the paper examines the main economic and institutional incentives which have driven major oecd food retailers in their use of private voluntary standards and discusses their growing role in shaping the agri food system it is based on interviews with quality and safety directors of major oecd retailers and a brief survey of retailers actual buyer practices though not all retailers are included these firms account for over 70 of retail food sales in oecd countries we find that the growing voice of civil society changing legal and institutional frameworks increased market concentration and buying power as well as their integration with financial markets has provided the setting for development of private standards while food safety and quality standards are seen as key to maintaining and improving reputation as well as against legal liabilities additional standards such as labour environmental and animal welfare are also gaining ground as strategies for customer loyalty and market shares the grass roots retailer move in the harmonization of food safety standards is seen as an initial step towards a global approach to managing the food system with harmonization of other standards likely in the future given their buyer power these developments can be viewed as a way of governing the food system and will be important for both oecd and non oecd food and agricultural sector evolution in the coming years

aggregation and imperfect competition on the existence of equilibrium we present a new approach to the theory of imperfect competition and apply it to study price competition among differentiated products the central result provides general conditions under which there exists a pure strategy price equilibrium for any number of firms producing any set of products this includes products with multi dimen sional attributes in addition to the proof of existence we provide conditions for uniqueness our analysis covers location models the characteristics approach and probabilistic choice together in a unified framework to prove existence we employ aggregation theorems due to prekopa 1971 and borell 1975 our companion paper caplin and nalebuff 1991 introduces these theorems and develops the application to super majority voting rules we present a new approach to the theory of imperfect competition and apply it to study price competition among differentiated products the central result is that there exists a pure strategy price equilibrium for any number of firms producing any set of products in addition to the proof of existence we provide conditions for uniqueness our model both unites diverse strands of the earlier literature and opens up uncharted areas for future analysis in particular we expand the traditional one dimensional framework to allow for multi dimen sional product differentiation our approach involves twin restrictions on consumer preferences one on individuals preferences the other on the distribution of preferences across society these are generalizations of the restrictions supporting 64 majority rule presented in caplin and nalebuff 1988 to prove existence we apply a new technique of aggregation this technique is valuable in a variety of other problems in the companion paper we use the aggregation result to generalize our earlier work on 64 majority rule and to characterize the relationship between the distribution of human capital and the distribution of income caplin and nalebuff 1991 there are additional applications in statistics and in search theory we begin with a brief review of the early literature on imperfect competition describing in more detail the existence problem and previous solutions section 3 presents our twin assumptions and shows that they cover many standard cases in section 4 we introduce the aggregation theorem and use it in the analysis of demand functions the proof of existence of equilibrium is in section

a signaling model of environmental overcompliance abstract we present a theory of unilateral regulatory overcompliance as a signaling device firms that have a competitive advantage in the use of a cleaner but more costly technology overcomply in order to signal to an imperfectly informed benevolent government that compliance costs are low thereby triggering tougher regulation we identify the conditions under which such an overcompliance signaling equilibrium arises showing that there may be over overcompliance in that firms may overcomply even when tougher regulation is not socially desirable we also discuss the differential implications of the signaling theory as compared to other theories of unilateral regulatory overcompliance

foreign direct investment and the nature of r d the authors find that the role foreign direct investment fdi plays in international technology transfer itt hinges on whether substitute channels of itt such as imitation exist for the host country if fdi is the sole channel of itt a faster flow of fdi to the south increases the rates of innovation imitation and itt so fdi generates dynamic benefits if fdi and imitation coexist as channels of itt however then fdi merely substitutes for imitation targeting northern firms a faster flow of fdi to the south then leaves the rates of innovation imitation and itt essentially unaffected so fdi generates mostly static benefits

duopoly and quality standards abstract in the absence of sunk costs a low quality producer benefits from a mildly restrictive quality standard whereas a high quality producer suffers from it consumers welfare increases if the firm producing the higher quality does not increase its quality significantly in response to the increase in quality by its rival a sufficiently severe standard causes exit from the industry when there are no sunk cost the high quality producer exits first

licensing versus direct investment implications for economic growth we develop a symmetric two country model of foreign direct investment fdi that captures the internalization decision and its implications for both the rate and magnitude of innovations when mode choice licensing versus fdi is fixed a subsidy to multinational production increases the rate but decreases the size of innovations when mode can switch the rate and size of innovations both increase provided the subsidy is not too large although innovation size decreases for industries where firms already were choosing fdi innovation size increases for industries where firms switch from licensing to fdi because multinationals choose larger innovations than licensors 2002 elsevier science b v all rights reserved

voluntary environmental agreements good or bad news for environmental protection abstract there has been growing interest in the use of voluntary agreements vas as an environmental policy tool this article uses a simple model to determine whether vas are likely to lead to efficient environmental protection we consider cases where polluters are induced to participate either by a background threat of mandatory controls the stick approach or by cost sharing subsidies the carrot approach the results suggest that the overall impact on environmental quality could be positive or negative depending on a number of factors including the allocation of bargaining power the magnitude of the background threat and the social cost of funds