technology based smes in the go teborg region their origin and interaction with universities and large firms lindholm dahlstrand a 1999 technology based smes in the go teborg region their origin and interaction with universities and large firms reg studies 33 379 389 this paper investigates the local origins and continued regional interaction of a group of new technology intensive go teborg smes the results are based on an original survey of 52 such firms it finds that these go teborg smes were almost exclusively established as spin offs by founders who were previously working for another local firm or university local links and relationships especially with the previous employer and with chalmers university were initially important for their development with time however the importance of such links has tended to decline and instead wider national relationships are becoming more important lindholm dahlstrand a 1999 pme a la pointe de la technologie situees dans la region de goteborg gene se et synergie quant aux universites et aux grandes entreprises reg studies 33 379 389 c

making sense of the competitiveness debate the debate over national competitiveness is marked by some basic misperceptions with few exceptions those who use the term have a crude essentially mercantilist view of world trade in which competition among nations is just like competition between corporations not only do the authors and readers of reports on national competitiveness usually not understand comparative advantage they are unaware of the most basic adding up constraints economists however find it hard to believe that seemingly well informed people can really be this naive and assume that there must be more sophisticated ideas lying behind what they say the rationales offered by economists in turn offer false comfort to the would be sophisticates who like the term competitiveness they believe that they have transcended conventional economic theory when the fact is that they have failed to comprehend it in short the actual level of discussion is lower than any of the participants imagines copyright 1996 by oxford university press

anomalies risk aversion economists ubiquitously employ a simple and elegant explanation for risk aversion it derives from the concavity of the utility of wealth function within the expected utility framework we show that this explanation is not plausible in most applications since anything more than economically negligible risk aversion over moderate stakes requires a utility of wealth function that is so concave that it predicts absurdly severe risk aversion over very large stakes we present examples of how the expected utility framework has misled economists and why we believe a better explanation for risk aversion must incorporate loss aversion and mental accounting

upgrading in global value chains lessons from latin american clusters it has been shown that clustering helps local enterprises in industrial districts overcome growth constraints and compete in distant markets in advanced and less developed countries nevertheless recent contributions have stressed that more attention needs to be paid to external linkages and to the role played by global buyers to foster upgrading at cluster levels in this study we contribute to this debate focusing on the analysis of the relationships existing between clustering global value chains upgrading and sectoral patterns of innovation in latin america we find that sectoral specificities matter and influence the mode and the extent of upgrading in clusters integrated in global value chains

exporting manufactures human resources natural resources and trade policy whether a country s exports consist mainly of manufactures or mainly of primary products depends fundamentally on the skills of its labour force relative to the extent of its natural resources this proposition derived from a modified version of heckscher ohlin theory is supported by a strong cross country correlation between the manufactured primary export ratio and the skill land ratio cross country variation in trade policies is now only a minor cause of variation in the manufactured primary export ratio

the private sector in agricultural research systems will it fill the gap abstract this article examines whether the private sector can fill the gap of declining public research in developing countries economic theory suggests private for profit research will focus on areas where returns to research are appropriable and reasonable profits are generated actual private for profit research activities concentrate on countries and industries with large markets appropriable returns strong science infrastructure and favorable government policies governments and donors can promote private research by easing constraints to private entry and operations but if governments stop funding research on public goods and technologies with limited market potential the private sector is unlikely to fill the gap completely

sources procedures and microeconomic effects of innovation fabio arcangeli paul david frank engelman christopher freeman massimo moggi richard nelson luigi orsenigo nathan rosenberg michele salvati g n von tunzelman two anonymous referees and the participants at the meeting of the committee on distribution growth and technical progress of the italian national research council cnr rome november 16 1985 have helped with various redraftings a particularly grateful acknowledgment is for the insightful and patient help of moses abramovitz this work has been undertaken at the science policy research unit spru university of sussex as part of the research program of the designated research centre sponsored by the economic and social research council esrc earlier support to the research that led to this paper by the italian national research council cnr is also gratefully acknowledged the statistical research has been undertaken with the assistance of stephano brioschi ilaria fornari and giovannu prennushi

technological regimes and schumpeterian patterns of innovation this paper proposes that the specific pattern of innovative activities in an industry can be explained as the outcome of different technological learning regimes a technological regime is defined by the particular combination of technological opportunities appropriability of innovations cumulativeness of technical advances and properties of the knowledge base building upon the distinction between schumpeter mark i and schumpeter mark ii industries this paper provides empirical estimates of the relationships between indicators of the schumpeterian patterns of innovation concentration of innovative activities stability in the hierarchy of innovators and importance of new innovators and indicators of the variables defining technological regimes

competitiveness indices and developing countries an economic evaluation of the global competitiveness report developing countries policy makers worry about national competitiveness and closely watch indices ranking international competitive performance this paper analyzes from a development economics perspective if competitiveness is a legitimate concern and if the leading indices deserve the attention they get it assesses the best known index the global competitiveness report of the world economic forum and finds deficiencies at several levels its definitions are too broad the approach biased and the methodology flawed many qualitative measures are vague redundant or wrong these weak theoretical and empirical foundations reduce the value of the indices for analytical or policy purposes

the historical fertility transition a guide for economists the historical fertility transition is the process by which much of europe and north america went from high to low fertility in the nineteenth and early twentieth centuries this transformation is central to recent accounts of long run economic growth prior to the transition women bore as many as eight children each and the elasticity of fertility with respect to incomes was positive today many women have no children at all and the elasticity of fertility with respect to incomes is zero or even negative this paper discusses the large literature on the historical fertility transition focusing on what we do and do not know about the process i stress some possible misunderstandings of the demographic literature and discuss an agenda for future work jel i12 j13 n30

risk aversion and incentive effects new data without order effects holt and laury 2002 used a menu of ordered lottery choices to make inferences about risk aversion under various payment conditions the main results of that paper were a subjects are risk averse even for relatively small payments of less than 5 b risk aversion increases sharply with large increases in the scale of cash payoffs and c there is no significant effect from increasing the scale of hypothetical payment with a few exceptions noted in the paper all treatments began with a low payment choice followed by a choice with hypothetical payments that had been scaled up by 20 50 or 90 followed by a real cash decision with the same high payment scale 20 50 or 90 followed by a single final low 1 real payment choice those in the 90 treatment could earn amounts ranging from 9 00 to 346 50 in this task as glenn w harrison et al 2004 correctly note this design confounds order and treatment effects since the high real payment choice was always completed after the low real and high hypothetical payment tasks in a new experiment reported below we first seek to replicate harrison et al s finding that the order effect participating in a low payment choice before making a high payment choice magnifies the scale effect in a second treatment each subject completes the menu of lottery choices under just one payment condition 1 or 20 real or hypothetical thereby eliminating any order effects i new data

sectoral patterns of technical change towards a taxonomy and a theory abstract the purpose of the paper is to describe and explain sectoral patterns of technical change as revealed by data on about 2000 significant innovations in britain since 1945 most technological knowledge turns out not to be information that is generally applicable and easily reproducible but specific to firms and applications cumulative in development and varied amongst sectors in source and direction innovating firms principally in electronics and chemicals are relatively big and they develop innovations over a wide range of specific product groups within their principal sector but relatively few outside firms principally in mechanical and instrument engineering are relatively small and specialised and they exist in symbiosis with large firms in scale intensive sectors like metal manufacture and vehicles who make a significant contribution to their own process technology in textile firms on the other hand most process innovations come from suppliers these characteristics and variations can be classified in a three part taxonomy based on firms 1 supplier dominated 2 production intensive 3 science based they can be explained by sources of technology requirements of users and possibilities for appropriation this explanation has implications for our understanding of the sources and directions of technical change firms diversification behaviour the dynamic relationship between technology and industrial structure and the formation of technological skills and advantages at the level of the firm the region and the country

the value of mortality risk reductions pure altruism a confounder this paper examines public valuations of mortality risk reductions we set up a theoretical framework that allows for altruistic preferences and subsequently test theoretical predictions through the design of a discrete choice experiment by varying the tax scenario uniform versus individual tax the experimental design allows us to verify whether pure altruistic preferences are present and the underlying causes we find evidence of negative pure altruism under a coercive uniform tax system respondents lower their willingness to pay possibly to ensure that they are not forcing others to pay at a level that corresponds to their own higher valuations this hypothesis is supported by the observation that respondents perceive other individuals valuations to be lower than their own our results suggest that public valuations of mortality risk reductions may underestimate the true societal value because respondents are considering other individuals welfare and wrongfully perceive other people s valuations to be low

the internationalisation of r d by multinationals a trade off between external and internal proximity overseas production is frequently seen as a force inducing the decentralization of rd it should on the contrary be completed by the implementation of relations of proximity internal to the firm which they refer to as internal proximity from this perspective the multinational firm that manages dispersed r d units is seen as facing a tension an organizational trade off between external proximity and internal proximity copyright 1999 by oxford university press

cooperation between rivals informal know how trading it has long been recognized that it is difficult for an innovating firm to fully appropriate the benefits arising from its innovations and that desired research might therefore not be performed nelson 1959 pp 297 306 one sometimes possible solution to this dilemma is cooperative r d conducted by firms who share the costs and benefits of particular r d projects johnson 1973

the value of private versus public risk and pure altruism an experimental economics test in 1996 johannesson et al published a paper entitled the value of private safety versus the value of public safety based on the preliminary evidence from a hypothetical contingent valuation study for public and private safety these authors argue that consumers behave as pure altruists who consider the cost of a program that might be imposed on other voters when they determine their maximum willingness to pay for public safety programs the authors conclude that further empirical research in this area is warranted this article presents a set of laboratory economics experiments to test johannesson et al s conjecture under controlled conditions in which participants face an actual risk of financial loss the laboratory results extend those of johannesson et al s providing strong evidence of pure altruism in coercive settings involving public risks

risk aversion and expected utility theory a calibration theorem within the expected utility framework the only explanation for risk aversion is that the utility function for wealth is concave a person has lower marginal utility for additional wealth when she is wealthy than when she is poor this paper provides a theorem showing that expected utility theory is an utterly implausible explanation for appreciable risk aversion over modest stakes within expected utility theory for any concave utility function even very little risk aversion over modest stakes implies an absurd degree of risk aversion over large stakes illustrative calibrations are provided

the firms that feed industrial districts a return to the italian source italian industrial districts comprise a great variety of firms and are criss crossed by various networks and business groups although the vast majority of industrial district firms are relatively small it is a mistake to assume that they are organizationally symmetrical and that they mimic the supposedly dominant norms of the communities in which they are located larger firms frequently organize production among groups of smaller firms introduce technological innovations and expand existing markets copyright 1999 by oxford university press

multinational experience and the creation of linkages with local firms evidence from the electronics industry the paper focuses on the nature and determinants of multinational firms creation of linkages with local firms with specific reference to the electronics industry the study of the recent evolution of international operations in this sector seems to highlight a relevant and somewhat generalisable pattern of industrial organisation and dynamics it is argued that the nature and intensity of multinational companies involvement into linkages with local counterparts are strongly influenced by a combination of factors that are partially inter dependent but still rely on different decision making centres on the one hand host countries long term investment policies in the field of human capital training and accumulation and on the other hand firms decisions to take roots in local contexts through the creation of foreign subsidiaries it is further suggested that human capital and subsidiaries will particularly favour the development of collaborative linkages with local firms compared to previous work of the authors on this subject this paper utilises an expanded and updated data set covering international operations of the top european and us electronics companies over the 1984 1995 period and attempts a more detailed and in depth analysis concerning the nature determinants and evolution in time of international growth strategies

what percentage of innovations are patented empirical estimates for european firms abstract a 1993 survey on the innovative activities of europe s largest industrial firms obtained useable results on patenting activities for 604 respondents the data are used to calculate the sales weighted propensity rates for 19 industries the propensity rates equal the percentage of innovations for which a patent application is made the propensity rates for product innovations average 35 9 varying between 8 1 in textiles and 79 2 in pharmaceuticals the average for process innovations is 24 8 varying from 8 1 in textiles to 46 8 for precision instruments only four sectors have patent propensity rates for both product and process innovations combined that exceed 50 pharmaceuticals chemicals machinery and precision instruments regression results that control for the effect of industry sector show that patent propensity rates increase with firm size and are higher among firms that find patents to be an important method for preventing competitors from copying both product and process innovations the effect of secrecy is not so straightforward firms that find secrecy to be an important protection method for product innovations are less likely to patent as expected but secrecy has little effect on the propensity to patent process innovations the r d intensity of the firm has no effect on patent propensity rates for both product and process innovations the sector of activity has a strong influence on product patent propensities but very little effect on process patent propensities after controlling for the effect of other factors

islam authoritarianism and female empowerment what are the linkages most islamic countries are governed by authoritarian regimes and in most islamic countries women s economic social and political rights are significantly less than those of the men of their country these well known facts provide the basis for a highly original and important analysis by m steven fish 1 fish s major contribution is his suggestion that the relationships at issue are not merely a matter of spurious correlation but rather are indicative of a deep underlying causal pattern in a sophisticated cross national quantitative analysis he shows the following 1 even controlling for many other alleged influences on countries political systems countries with a largely islamic religious tradition have significantly more autocratic governments than do non islamic countries 2 controlling for level of economic development the condition of women is significantly worse in islamic countries than in others 3 in a more limited test even when controlling for economic development and islamic tradition a low level of women s rights may produce lower levels of democracy 4 more speculatively islamic states may be more autocratic so as to repress women s rights more effectively or autocratic government may permit and even require the repression of a range of human rights including those of women

collective efficiency growth path for small scale industry this study is concerned with the growth of small local industry in developing countries and explores one particular route for understanding and fostering such growth it focuses on the clustering of firms and the competitive advantage which they derive from local external economies and joint action captured in the concept of collective efficiency following a conceptual discussion the article explores the economic and institutional conditions which enhance or hinder collective efficiency this includes a case study which suggests that responding to opportunity and crisis requires shifting from mere reliance on external economies to joint action and from ascribed to earned trust

identifying significant characteristics of organic milk consumers a cart analysis of an artefactual field experiment the organic dairy category is one of the fastest growing categories of organic foods in the us organic milk consumers generally cite perceived health benefits and lower risk of food contamination as well as perceived superior quality and environmental sustainability of organic farming methods as the major motivations for preference of organic over conventional milk while the attributes of organic milk that are valued by consumers are fairly well known more ambiguity exists regarding the demographic characteristics of the typical organic milk consumer this research makes use of experimental data from 148 adult participants and use a classification and regression tree cart analysis a nonparametric modelling approach to identify how willingness to pay wtp for organic milk varies with the demographic profile of experiment participants the study finds that perceived taste of organic milk concern for the risk of consuming conventional milk being a primary shopper and the quantity of milk consume

innovation strategy choices in the urban economy this paper analyses how the innovation strategies of individual firms reflect the density diversity and international connectivity of their urban locations it makes three contributions theoretically it argues that observed strategies reflect a series of inter related choices and that each may be influenced differently by the knowledge dynamics of firms locations empirically it uses norwegian community innovation survey data to demonstrate how firms in the capital are less inclined to engage in innovation activities but also more likely to commit strongly once engaged than are comparable firms located elsewhere methodologically it illustrates how the results of sequential regressions on inter related strategy choices differ from those obtained using a more conventional estimation strategy implications for innovation policy and research are drawn

risk aversion and incentive effects comment charles a holt and susan k laury 2002 develop an experimental design to determine the risk attitude of an individual they use their observations to argue that increased incentives appear to change risk attitudes leading to greater risk aversion popular utility functions that do not allow for such effects are therefore misspecified building on this finding they estimate a flexible utility function that characterizes their aggregate data well but that does not assume constant absolute or relative risk aversion the basic holt and laury 2002 hl design should become an important tool for the interpretation and design of experiments in which risk attitudes could play a role however their most important result showing the effect of scaling up the stakes of the lottery choice task is confounded by a possible order effect an order effect occurs when prior experience with one task affects behavior in a subsequent task the primary methodological contribution of experiments in economics is to enhance control ideally such control makes the explanatory variables of interest in this case scale orthogonal to other explanatory variables such as order allowing clearer inferences about behavior than one could get from field econometric data we argue that not controlling for order effects results in a misspecification of utility functions that is as important as that of scale the subjects in the hl design were given sequences of three or four tasks as shown in table 1 task 1 involved choices over lotteries with a baseline level of prizes which we will refer to as the 1 scale task 2 involved hypothetical choices over prizes with a scaled up level of prizes either 20 50 or 90 task 3 repeated task 2 but with choices that involved real payoffs task 4 was a return to the baseline task with real 1 prizes in some sessions subjects were not given task 2 or task 3 what could one infer from the comparison of measured risk attitudes in the 1 and 20 tasks in hl unfortunately any observed difference could be due either to the scale of the prizes involved or the task order or some combination of both thus the effect of scale is intrinsically confounded with the possible effect of task order this is a logical flaw in their design which

structural reforms and technological behaviour abstract the opening up to foreign competition the deregulation of a vast array of markets and the privatization of public sector firms have been inducing major changes in the structure and behaviour of the latin american economies the aim of this paper is to describe some of these changes and to identify the new patterns of firm behavior the new institutional environment and the new policy agenda gradually emerging in the region in the field of science and technology as a result of recent trade liberalization and market deregulation efforts

network composition collaborative ties and upgrading in emerging market firms lessons from the argentine autoparts sector what types of relational and institutional mechanisms shape knowledge flows and the upgrading capabilities of emerging market firms in the face of economic liberalization we analyze the argentine autoparts sector to distinguish the relative impact of different types of network relationships on a firm s process and product upgrading a few social ties to international assemblers appear to be most beneficial for local suppliers although they may be insufficient to compensate fully for the negative effect of being located in a lower tier supplier customer relationships that are part of regular disciplined discussions for product and process improvements appear to be especially beneficial for upgrading

developments in non expected utility theory the hunt for a descriptive theory of choice under risk this article reviews recent developments in the economic theory of individual decision making under risk since the 1950s it has been known that individual choices violate the standard model of expected utility in predictable ways considerable research effort has now been devoted to the project of developing a superior descriptive model following an overview of non expected utility theories which distinguishes between conventional and non conventional approaches the paper seeks to assess these alternative models in terms of empirical success using laboratory and field data and theoretical usefulness the closing sections reflect on some new directions emerging in this literature

gatekeepers in regional networks of innovators the internal density of a local network is said to increase the regionspecific knowledge stock and might lead to a comparative advantage however it might also lead to a lock in situation if local trajectories are directed towards inferior solutions accordingly it is argued that successful clusters are characterised by the existence of gatekeepers i e actors that generate novelty by drawing on local and external knowledge we attempt to answer questions related to the role and characteristics of gatekeepers within regional innovation systems by applying social network analysis based on patent data for four east german regions the regional networks appear to be significantly dierent with respect to the overall degree of interaction and with respect to their relative outward orientation concerning the characteristics of gatekeepers we find that size does not play the major role for being a gatekeeper it is rather absorptive capacity that matters for gatekeepers it also shows that public research organisations serve the functions of a gatekeeper to a higher degree than private actors

long term determinants of the demographic transition 1870 2000 abstract this paper analyzes the long term economic determinants of the demographic transition using a large panel of countries since 1870 a simple theoretical framework accounts for the possibly nonmonotonic variations of fertility in the course of economic development as predicted by unified growth theory i find that primary schooling rather than income or health related variables is the most robust determinant of the fertility transition as regards the health transition both education and income are significant determinants of mortality rates but education alone accounts for the bulk of their time variation over the twentieth century thus education can be viewed as the main long term determinant of the demographic transition

self interest altruism and health risk reduction an economic analysis of voting behavior while classical economic theory suggests that the demand for private goods is motivated by economic self interest a growing body of literature suggests that the demand for public goods is driven both by self interest and by altruistic motives the political arena has been a major testing ground for this hypothesis recently a number of studies have tried to empirically isolate and determine the importance of economic versus ideological factors in explaining political choices by representatives kau and rubin 1979 peltzman 1984 kalt and zupan 1984 while congressional voting records have provided a rich source of data for empirical analysis a consensus opinion on the importance of self interest versus altruism has not been reached and remains controversial altruistic motivations have also been

what has driven the great fertility decline in developing countries since 1960 several developing countries are currently experiencing a significant fertility decline however academic economists have paid little attention to this transition this paper seeks to explain the fertility transition by infant mortality urbanisation income culture and educational attainment of females and males using annual data for 92 developing countries over the period 1960 2014 external instruments are used to deal with endogeneity the results suggest that increasing per capita income improved female education and increasing secularisation have been important determinants for declining fertility in the developing world

coping with the upheavals of globalization in the shea value chain the maintenance and relevance of upstream shea nut supply chain organization in western burkina faso summary market globalization has had only a weak impact on the regional shea nut supply chain in western burkina faso despite the boom in the shea trade and the arrival of leading foreign firms we show that despite the fact that wholesalers have kept the shea chain locked in an oligarchic organization for the last 50 years they still play an important role in the smooth functioning of the chain and in profit sharing down the chain to the rural poor we suggest that development actors should consider shea traders and their role in the coordination of the chain more carefully 2014 the authors published by elsevier ltd this is an open access article under the cc by nc sa license http creativecommons org licenses by nc sa 3 0

african enterprise clusters and industrialization theory and reality abstract using six case studies from africa this paper examines the theoretical argument that geographic and sectoral clustering enables enterprises to overcome constraints to growth and development findings were both theoretical and practical theoretically the study underscored the strength of the collective efficiency framework but found that certain anomalies could only be explained by other contextual variables grouping the six case studies revealed important differences among them and showed that each group plays its own part in the industrialization process groundwork clusters prepare the way industrializing clusters begin the process of specialization differentiation and technological development and complex industrial clusters produce competitively for wider markets the paper concludes with practical implications for african governments donors and the business community

recovery of a mexican cluster devaluation bonanza or collective efficiency abstract mexico as many other developing countries in latin america and elsewhere has been moving in the 1980s toward a liberalized trade regime after a long period of import substitution this paper analyzes the impact of trade liberalization on the cooperative behavior of shoe firms located in a cluster in guadalajara the empirical evidence shows that cooperation has increased it also suggests that cooperation positively influences firms performance and together with a favorable market environment contributes to the cluster s recovery the study is based on fieldwork carried out in guadalajara in 1996 qualitative information was collected through in depth interviews and quantified responses came from a questionnaire survey covering a sample of 63 shoe manufacturing enterprises

regional worlds from related variety in regional diversification to strategic coupling in global production networks this annual lecture paper bridges two influential but parallel literature strands on evolutionary economic geography eeg and global production networks gpn it argues that both strands are prem

the economics of technical change this paper reviews the recent rapidly growing literature on technical change in the economy it concentrates on innovations and their diffusion at firm and industry level since this was the area designated as relatively weak in earlier literature surveys the review argues that the extensive empirical evidence and theoretical analysis now available presents a basic challenge to neoclassical theory after indicating some weaknesses in the neo schumpeterian literature the paper concludes by advocating an experiment with a new form of assessment by neighboring disciplines to economics itself which would take full account of the fundamental issues at stake in this modern methodenstreit c 1994 academic press inc copyright 1994 by oxford university press

payoff dominance vs cognitive transparency in decision making i introduction there is a general question about how well laboratory markets work in eliciting true preferences given the low opportunity costs of making errors as in harrison 1989 vernon smith 1982 set out a series of conditions that must be adhered to if a laboratory market investigation is to provide insight into economic behavior in naturally occurring markets the opportunity cost question posed above is covered under smith s payoff dominance and reward saliency precepts for laboratory market experiments if the experimental setting is to elicit true preferences from the subjects the monetary payoffs in the experiment must be salient and dominate potential extraneous influences on subject behavior this paper reports on three series of experiments which employ the becker degroot marshak bdm mechanism to investigate the interaction between payoff dominance reward saliency and cognitive effort in the decision task the bdm mechanism is well suited to this task because it involves only individual choice is theoretically incentive compatible and offers a high degree of experimenter control over payoffs initial information and feedback on the results of decisions becker degroot and marschak 1964 introduced the following preference elicitation mechanism individuals state the most they would be willing to pay wtp 1 for a good then a random price is drawn from a distribution known to the individuals if the stated value is greater than or equal to the random price the individual buys the good at the randomly determined price otherwise the individual does not buy the good the bdm bidding mechanism can be shown to be incentive compatible the intuition is straightforward it is not in the individual s interest to understate true wtp if the random buying price falls between the stated wtp and the true wtp the individual has foregone a beneficial trade it is also not in an individual s interest to overstate true wtp if the random buying price is greater than the true value but less than the stated value the individual will be required to buy the good at a price greater than true wtp a more formal proof is easy to construct 2 let v the true value of one unit of the auction good b the bid submitted to purchase one unit of the good r the price randomly determined to be paid if the good is purchased p r probability that price r is randomly selected y sup o initial income u y utility a function of money income and the value of the good and e initial monetary balance provided in an experiment in the wtp version of the bdm auction the good is purchased if b greater than or equal to r with the subject paying only r and not purchased if b less than r in experiments using the bdm the subject cannot bid more than the experimental balance e so it must be that v less than e if the experiment is to be demand revealing assuming that subjects maximize expected utility they will submit bid b that maximizes eu integral of p r u y sup o e v r dr between limits b and 0 integral of p r u y sup o e dr between limits e and b the first integral describes the expected payoff for random prices r below the bid b and the second integral describes the expected payoff for random prices between the bid b and the maximum possible bid as limited by the balance e the maximum over b occurs when the derivative of eu with respect to b is zero in other words when deu db p b u y e v b u y e 0 so long as p b greater than 0 i e there is some probability the offered bid will be the price the above implies that the maximum occurs when b v in other words it is individually optimal to submit a bid b equal to one s true value v for the commodity although the bdm is incentive compatible in theory it is an empirical question whether it has this property in practice

a comparison of clustered and dispersed firms in the small scale clothing industry of lima abstract this study provides empirical evidence on the strength and type of clustering advantages contrasting the performance of small clustered firms with several control groups of dispersed producers in the garment industry of lima peru repeated measurement facilitates an evaluation of the ability of clustered firms to respond to pressures arising from the swift trade liberalization carried out in peru after 1990 the evidence suggests that clustering advantages have been significant particularly for the smallest firms cost reductions and information spillovers are the dominant type of advantages these are however passive advantages of clustering they largely arise at the level of transactions in goods and services and to a lesser extent in the transformation of inputs into output while significant these advantages are insufficient for sustaining competitiveness in the liberalized markets the garment cluster runs the risk of entropic death if information spillovers remain limited in origin and diversity and if interfirm cooperation does not cross local borders