estimates of the returns to quality and coauthorship in economic academia salaries of academic economists are studied to determine if individuals receive differential returns to publishing articles of varying quality and to coauthored versus single authored articles estimates based on detailed data and a flexible nonlinear least squares procedure indicate that substantial returns to quality exist and that an individual s return from a coauthored paper with n authors is approximately 1 n times that of a single authored paper

involuntary unemployment and implicit contracts this paper provides an explanation of involuntary umemployment arising as a consequence of asymmetric information between firms and workers involuntary unemployment is defined as a situation where ex post gains to trade exist a model of labor contracts is developed where the allocations are not ex post optimal it is shown that inferiority of leisure is a necessary and sufficient condition for the existence of involuntary unemployment

patterns of co authorship among economics departments in the usa given the steady increase in co authored papers in economics journals this paper reports a study of the patterns of co authorship between us universities and colleges a majority of institutions produce more co authored than single authored papers contacts with researchers from the same institution are still an important source of co authored papers even though slightly decreasing in frequency the determinants of co authorship outside the own institution are tested in a gravity model and it is found that distance and other geographical variables do not matter however the quality of co authors institutions measured by rankings of institutions has a significant impact on the number of co authored papers in top economics journals

collective bargaining in the public sector the effect of legal structure on dispute costs and wages this paper examines the impact of collective bargaining legislation on dispute costs and wages using a panel of canadian public sector contracts the authors results suggest that policymakers designing collective bargaining legislation face a trade off between reducing dispute costs and increasing wages dispute costs are lower under compulsory arbitration than under the right to strike or when no collective bargaining legislation exists hence a switch to compulsory arbitration could potentially make both the union and the employer better off by reducing dispute costs however the authors find that wages are higher under compulsory arbitration than under other legal structures copyright 1991 by american economic association

brokerage in sme networks this study focuses on sme networks of design and high tech companies in southeast netherlands by highlighting the personal networks of members across design and high tech industries the study attempts to identify the main brokers in this dynamic environment in addition we investigate whether specific characteristics are associated with these brokers the main contribution of the paper lies in the fact that in contrast to most other work it is of a quantitative nature and focuses on brokers identified in an actual network studying the phenomenon of brokerage provides us with clear insights into the concept of brokerage regarding sme networks in different fields in particular we highlight how third parties contribute to the transfer and development of knowledge empirical results show among others that the most influential brokers are found in the non profit and science sector and have a long track record in their branch

balancing exploration and exploitation in alliance formation do firms balance exploration and exploitation in their alliance formation decisions and if so why and how we argue that absorptive capacity and organizational inertia impose conflicting pressure

unions and strikes with asymmetric information strikes seem to be a pareto inefficient outcome of bargaining between a union and a firm however this paper shows that strikes can be the outcome of rational behavior by both agents if the firm has more information than the union concerning the state of nature the union can use strikes as a way of gaining information the paper uses an asymmetric information model where the firm has information about the state i e profitability that the union does not know the schedule of wage offers by the union then depends on the probability that a given state will occur

a bridge over troubled waters bridging organisations and entrepreneurial opportunities in emerging sectors bridging institutions or organisations are regarded as having positive effects in the sectoral systems of innovation ssi literature particularly in compensating for weaknesses in these systems yet we know little about the organisational practices that make their role effective or the types of innovation paths that they may facilitate within a system this paper shows how bridging organisations may promote neglected areas of creativity and potential disruptive innovation these blocked opportunities tend to emerge at the boundaries of ssi where old sectors overlap and new trajectories form we draw on the social networks entrepreneurship and disruptive innovation literature and analyse an intervention in the uk electronic games industry the evaluation of business propositions exploiting new gaming platforms such as mobile telephones dvd and film using an innovative co productive research design the study shows how the effectiveness of bridging organisation activity depends on key design choices and brokerage capabilities

a few goodmen surname sharing economist coauthors we explore the phenomenon of coauthorship by economists who share a surname prior research has included at most three economist coauthors who share a surname ours is the first paper to have four economist coauthors who share a surname as well as the first where such coauthors are unrelated by marriage blood or current campus jel y9

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

product and process innovations in the life cycle of an industry abstract filson rev econ dyn 4 2001 uses industry level data on firm numbers price quantity and quality along with an equilibrium model of industry evolution to estimate the nature and effects of quality and cost improvements in the personal computer industry and four other new industries this paper studies the personal computer industry in more detail and shows that the model explains some peculiar patterns that cannot be explained by previous life cycle models the model s estimates are evaluated using historical studies of the evolution of the personal computer industry and patterns that require further model development are described

trends in rankings of economics departments in the u s an update economics departments in the u s are ranked based on 1 the number of pages published in thirty six economics journals 2 publications in five of the top journals 3 output per faculty member and 4 an index of the concentration of research in a department evidence shows that the top twenty departments have generally retained their positions since the 1970s but rather large changes have occurred in departments ranked from 240 to 100 an economists hall of fame is developed listing the top fifty individual producers of research in the thirty six journal set and the top five journals

an economics journals ranking that takes into account the number of pages and co authors in this article i examine whether the academics reward policy must correlate positively with the published number of articles per co author number of pages and journals reputation this is accomplished by estimating a nonlinear model with a panel data from 168 economics journals covered in the isi web of knowledge database 58 825 articles the data reinforces the conjecture that published article value is slightly increasing with the number of co authors and is proportional to the number of pages the data also suggests that there are four distinct groups related to journal quality that i name a b b and b

public procurement and innovation resurrecting the demand side abstract demand is a major potential source of innovation yet the critical role of demand as a key driver of innovation has still to be recognised in government policy this article discusses public procurement as one of the key elements of a demand oriented innovation policy the paper starts by signaling the new significance of public procurement for innovation policy strategies at the eu level and in a range of european countries it then defines the concept of public procurement and embeds this concept within a taxonomy of innovation policies the rationales and justifications of public procurement policies to spur innovation are discussed followed by a consideration of the challenges and potential pitfalls as well as appropriate institutional arrangements and strategies including some recent empirical examples of good practice it concludes by confronting the public procurement approach with two of the most common objections to it and by considering future prospects

controlling for endogeneity of strike variables in the estimation of wage settlement equations this article analyzes wage changes with an unbalanced panel from the spanish collective bargaining in large firms survey central to the analysis are the joint determination of strike and wage outcomes and in particular the estimation of the slope of the wage concession curve i control for the possible endogeneity of strike variables in the wage equation and suggest two sets of instruments lagged strike outcomes or reduced form predictions of the strike variables when controlling for endogeneity a negative relationship between strike duration and the size of the wage change arises however short strikes still produce higher wage changes

what s an economics seminar worth information authors and organizers should know es de lille abstract this paper is an empirical study of the publication records of communications to a weekly seminar continued from 1997 we look at the quality of publications and also at the determinants of publications our results offer lessons for both presenters and organizers of research seminars in academia

networks in entrepreneurship the case of high technology firms the value of networks as an integral part of the explanation of entrepreneurial success is widely acknowledged however the network perspective does not specify the role of networks in the emergence and early growth of a venture we have distinguished three entrepreneurial processes in new venture development i e discovery of opportunities securing resources and obtaining legitimacy which are of importance for survival and performance this paper examines how these processes are influenced by strong and or weak ties and whether the degree of innovation incremental versus radical acts as a contingency factor in the way network ties support entrepreneurial processes in this explorative study three cases on high technology firms in the netherlands provide empirical material enabling us to develop a number of propositions on the network effect in particular the mix of strong and weak ties on the three entrepreneurial processes

an illustration of the essential difference between individual and social learning and its consequences for computational analyses abstract drawing a conclusion from recent insights in evolutionary game theory we show that a so called spite effect implies that there is an essential difference between individual and social learning we illustrate its consequences for the choice of computational tools in economics and social settings in general by analyzing two variants of a genetic algorithm

optimal labour contracts under asymmetric information an introduction the review of economic studies has instituted a new series of lectures to be given annually by a younger british economist at the association of university teachers of economics meetings the choice of lecturer is determined by a panel whose members are currently professors hahn mirrlees and nobay this paper is a revised version of the first lecture in the series it was presented at the aute meeting held at the university of surrey in april 1982 and was refereed in the usual way mak

first author conditions evidence from finance journal coauthorship we study the trend and the author name ordering rule in finance publication using the publication records of 21 core finance journals during the period from 1990 to 2004 we empirically model the underlying factors that affect the alphabetical ordering rule among multi authored finance articles we find that the choice of alphabetical ordering is based on the quality of the article institutional heterogeneity team size and cultural factors the central argument rests upon the need to signal and the importance of signalling within the context of bargaining behaviour among coauthors the probability of choosing alphabetical name ordering rule is associated with high article quality higher ranked institutions smaller research team and the presence of european authors

collaboration incentives endogenous selection into single and coauthorships by surname initial in economics and management many prior studies suggest that default alphabetical ordering of coauthors in economicsconfers disproportionate professional advantages on those with an early surname initialbecause of the greater prominence it gives to the first author however these studies do notconsider that authors select into coauthorships according to the incentives identified wedevelop a model of endogenous selection into single and coauthorships around the principlethat no one wants to be second author when they expect to provide the larger contribution i e are of higher quality we test it with authorship data from economics with man agement which does not use default alphabetical ordering as a benchmark we predict foreconomics that lower quality authors with an early surname initial would be less desirablecoauthors whereas higher quality authors with a late initial would have a lower desire tocoauthor most desired are early initial authors of high quality who are therefore advan taged in forming high quality collaborations the combined effect predicts citation rankincreases with surname initial for single authored papers and decreases for coauthored we find both effects for economics when compared to management and absolutely ourfindings indicate that part of the advantage enjoyed by early surname initial authors in eco nomics could be due to the higher ability among them having more incentive compatiblecollaborators rather than merely to greater prominence

how do journal quality co authorship and author order affect agricultural economists salaries utilizing an original data set containing annual salaries and peer reviewed publication histories for 326 faculty members from top ranked ph d granting programs we examine the labor market for academic agricultural economists the results suggest that higher quality publications have a greater impact on annual earnings that sole authored articles have a higher return than multi authored articles and that no wage premium exists for being the lead author of a non alphabetic article

research productivity over the life cycle evidence for academic scientists the relationship between age and the publishing productivity of ph d scientists is analyzed using data from the survey of doctorate recipients national research council and the science citation index the longitudinal nature of the data allows for the identification of pure aging effects in five of the six areas studied life cycle aging effects are present only in particle physics where scientists often speak of being on a religious quest is the indication that scientific productivity is not investment motivated vintage effects are also considered the expectation that the latest educated are the most productive is not generally supported by the data copyright 1991 by american economic association

the effect of gender sorting on propensity to coauthor implications for academic promotion a cohort sample of ph d economists indicates a significant propensity for researchers to select coauthors of the same sex this gender sorting contributes to lower article production for women further we find evidence of bias in academic promotion when single authored and coauthored articles carry the same weight in promotion and salary decisions the evidence explains in part why women academics wait longer for promotion and are not as likely to be promoted as men among the effects of gender sorting is self selection of women into larger departments where they are more likely to find colleagues of the same sex

scholarships citations and salaries economic rewards in economics while substantial attention has been paid to the determinants of academics earnings 5 7 8 14 15 this literature has by implication suggested that the mere fact of having spent more time in the profession and the publication of more scholarly articles and books are the major determinants of salary differences our purpose here is to introduce a new determinant the quality of one s scholarly research measured by the frequency of references to that work as an additional objective measure of productivity we expect that this proxy for the extent of a scholar s influence on the work of other researchers is rewarded by the market in addition to giving a more complete picture of the determination of salaries in academic labor markets our approach should be useful in establishing a better framework for the evaluation of issues of discrimination in such markets than has been presented before 2 9

recognition for group work gender differences in academia abstract how is credit for group work allocated when individual contributions are not observed i use data on academics publication records to test whether demographic traits like gender influence how credit is allocated under such uncertainty while solo authored papers send a clear signal about ability coauthored papers are noisy providing no specific information about each contributor s skills i find that men are tenured at roughly the same rate regardless of coauthoring choices women however are less likely to receive tenure the more they coauthor the result is much less pronounced among women who coauthor with other women

keith pavitt and the invisible college of the economics of technology and innovation this paper uses a database on scientific interaction in the field of the economics of technological change and innovation the database is used to address two issues first the network is shown to be approximately scale free this suggests that growth of the number of scholars active in the field and so called preferential attachment i e scholars entering the field prefer to attach themselves to highly reputable existing members of the network are characteristic of the nature of the underlying field thus increasing returns seem to govern mechanisms of reputation formation second the potential existence of cohesive subgroups of relatively strongly connected scholars is explored and the implications of this for the paradigmatic structure of the field are discussed

r d internationalization r d collaboration and public knowledge institutions in small economies evidence from finland and the netherlands this paper investigates domestic and foreign innovating firms determinants of r d collaboration with domestic universities and public knowledge institutes in finland and the netherlands we put particular emphasis on the impact of incoming academic spillovers on the probability to co operate with these public r d institutes based on data from community innovation surveys we find that foreign firms in the netherlands are less likely to co operate with domestic public knowledge institutions than domestic firms while in finland no significant difference can be detected another result is that incoming knowledge spillovers are an important determinant for r d collaboration with domestic public knowledge institutions in both countries in case of foreign firms in finland incoming knowledge spillovers affect the probability to co operate with public knowledge institutions more positively as compared with domestic firms for the netherlands no substantial difference could be found in this respect further innovating firms in finland that require academic or basic knowledge do not co operate significantly more with public knowledge institutions than those that need applied knowledge at the same time they are willing to share knowledge with public r d partners in the netherlands innovating firms that require relatively more basic than applied knowledge increase the probability of co operation with dutch universities and public knowledge institutions but there is reluctance to share proprietary knowledge with public r d partners for both countries no significant difference between foreign and domestic firms with regard to academic knowledge requirements could be found this raises the issue whether finnish innovation policies with a strong focus on r d co operation provide incentives for strategic behaviour by domestic public partners to put more emphasis on applied research

the effect of settlement stage on negotiated wage settlements in canada this paper analyzes the effect of the particular stage of wage settlement on the negotiated wage increase using micro data on canadian labor contracts between 1966 and 1975 the sample data base was divided into direct first stage bargaining mediation conciliation and work stoppage arbitration and structural wage equations were estimated for each set of data the results indicate that as negotiations move from direct bargaining to work stoppage labor market conditions measured by a vacancy rate become less important as an explanatory variable and price catch up becomes more important

social capital structural holes and the formation of an industry network the formation of a network is determined by the opposition of two forces the first is the reproduction of network structure as a general social resource for network members the second is the alteration of network structure by entrepreneurs for their own benefit the idea of reproduction is a conventional one in organizational sociology but has taken on increased importance due to the work of bourdieu and coleman in contrast burt stresses the entrepreneurship of individual agents in exploiting structural holes that lie between constrained positions though complementary the theories of social capital and structural holes have fundamentally different implications for network formation this paper investigates these theories by examining empirically the formation of the interorganizational network among biotechnology firms we propose that network structure determines the frequency with which a new biotechnology firm or startup establishes new relationships network structure indicates both where soci

innovation and market structure in the dynamics of the pharmaceutical industry and biotechnology towards a history friendly model this paper is a first attempt at modelling the long term dynamics of market structure and innovation in the pharmaceutical industry in a history friendly way the model examines the relationships between the nature of the search space demand the patterns of competition and industry evolution in the age of random screening and in the age of molecular biology and shows that concentration in the pharmaceutical industry is shaped by lack of cumulativeness in innovative activities and market fragmentation the model conforms to our appreciative understanding and responds to changes in parameters concerning demand costs economies of scale opportunity conditions and the relative advantages of new biotechnology firms nbfs vis a vis incumbents with the exception of cost increases the model is quite robust to these changes in its essential features it is quite difficult to raise substantially concentration and to have nbfs displacing incumbents

reputational capital and academic pay geoffrey k turnbull i introduction economists continue to have a strong interest in academic labor markets as the steady stream of earnings studies over the past several decades readily attests the academic labor market draws the attention of economists not only because it is a topic of direct personal interest but also because it presents an opportunity to examine general theories of labor markets in a context with which the researcher has intimate experience nonetheless important questions about how the market values research teaching and service remain unanswered to what extent does the market reward quality versus quantity of published research or team production in the form of co authorship furthermore how durable is reputational capital for individuals whose research productivity diminishes during their career ultimately these questions relate in one way or another to the nature of the incentive structure faced by academic economists we provide new evidence concerning the role of research quality co authorship administrative service and teaching performance in the production of reputational capital in addition we explore the question of the durability of reputational capital once some of these activities cease we assume that the quantity and quality of published research largely determines an individual s reputational capital in the external market to help us sort out the separate effects on reputational capital of both the quality and quantity of research activity we measure research quality by both journal quality and career citations employing an interactive quantity quality term a related question concerns the role of team production in building an individual s reputational capital do individuals receive differential returns to publishing single authored versus co authored research papers this is an interesting question in light of the substantial increase in co authorship over the last few decades 1 one explanation of this trend is that the academic market has presented scholars with increasing opportunities for specialization in the production of knowledge and that team production involves the combination of complementary skilled researchers if team production reflects complementarities in the production of research we should observe little difference in the returns to single versus co authored work another explanation is that co authorship involves the combination of substitute skilled researchers so that co authorship presents a way for individuals to reduce their research efforts without reducing their individual measured research output to the extent that co authorshi p represents such substitution the market should fully discount the returns to multiple authored papers in this article we also move beyond identifying the factors that enhance an individual s reputation in the market to study the question of the durability of reputational capital some individuals quit publishing once they are tenured or promoted while others experience lengthy but temporary breaks in their flow of research output we examine the potential penalties associated with gaps in research output providing the first empirical evidence concerning the durability of reputational capital for academic economists in order to ensure that our analysis deals with these issues in a way that is most relevant to a large portion of the market for academic economists we use data from several research universities but restrict the sample frame to a single discipline economics much of the previous work estimating how publications or other factors affect academic salaries typically use data from a single university with earnings equations estimated across disciplines restricting the sample to a single discipline has the additional advantage of reducing potential heterogeneity problems associated with measuring productivity across disciplines in addition our data enable us more thoroughly to explore the empirical issues in the debate since they permit more precise measures of the past and current productivity of individuals engaged in comparable work

product innovation and the business cycle micreconomic data show two important facts about new products first some products are more important than others second it takes them years to penetrate the market significantly the authors calibrated model with these features overpredicts the autocovariance of u s gnp at long lags but underpredicts it at short lags the latter is not surprising since the model leaves out other obvious high frequency shocks the puzzle is why the u s gnp data do not show stronger autocorrelation at higher lags a surprising finding is that while the speed of diffusion has huge level effects it plays a minor role in shaping the business cycle copyright 1997 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

union wage differentials in the public and private sectors a simultaneous equations specification the paper attempts to integrate new approaches to estimating union wage effects with the analysis of public private sector wage differentials estimates of the union differential in both public and private sectors allowing for the endogeneity of union status are presented the hypothesis that the recently measured rents to public sector employment primarily reflect the recent increase in unionization in that sector is examined and receives considerable empirical support there was evidence of positive selection into the union sector especially for private sector workers union status appears to be strongly influenced by the expected wage gain from joining the union sector

internationalization and the performance of born global smes the mediating role of social networks this paper offers a social network explanation for the purported relationship between internationalization and firm performance in the context of born global small and medium enterprises smes we argue that home based social networks play a mediating role in the relationship between inward and outward internationalization and firm performance the mediating mechanism is attributed to three information benefits of social networks 1 knowledge of foreign market opportunities 2 advice and experiential learning and 3 referral trust and solidarity using survey data from smes in the largest emerging economy of china we found some support for this mediating role of social networks in the form of guanxi the results imply that international business managers should consider social networks as an efficient means of helping internationally oriented smes to go international more rapidly and profitably

the relative impacts of economics journals 1970 1990 our data collection and database assembly efforts were assisted by john p sophocleus mark gwartney michele butler and scott ralston we received extremely valuable computer programming assistance from jon brunson and edward novak constructive comments were receivedfrom two anonymous reviewers financial supportfrom the faculty development committee at salisbury state university is gratefully acknowledged

the institutional concentration of authors in top journals of economics during the last two decades this paper addresses the institutional concentration of authors in 15 top economics journals from 1977 to 1997 the concentration of authors phd affiliations is substantially higher than the concentration of authors current affiliations relating input indicators such as population number of universities with economics departments or manpower in economics to publication output reduces the us dominance considerably whereas israel and the united kingdom come out excellently exporters and importers of phds among universities are identified concentration ratios like the herfindahl index lack a clear time trend nevertheless the position of the united states has been weakening in recent years

estimating the effects of unions on wage inequality in a panel data model with comparative advantage and nonrandom selection this article considers the estimation of the structure of wages in union and nonunion sectors it proposes an estimator that extends standard panel data techniques to the case in which the return to the permanent component of the error term is differently rewarded in the two sectors the econometric model is used to estimate the effect of unions on both the level and the variance of wages in canada the findings indicate that unions increase the average wage of workers and compress the returns to observable measures of skill and to a time invariant unobservable measure of skill

first author conditions this paper provides a theoretical explanation for the persistent use of alphabetical name ordering on academic papers in economics in a context in which market participants are interested in evaluating the relative individual contribution of authors it is an equilibrium for papers to use alphabetical ordering moreover it is never an equilibrium for authors always to be listed in order of relative contribution in fact we show via an example that the alphabetical name ordering norm may be the unique equilibrium althoug multiple equilibria are also possible finally we charaterize the welfare properties of the noncooperative equilibrium and show it to produce research of lower quality than is optimal and than would be achieved if coauthors were forced to use name ordering to signal relative contribution

the influence of local search and performance heuristics on new design introduction in a new product market abstract this study develops and tests three sets of predictions concerning new design introduction during the initial period of ferment in a new product market we root our predictions most directly in the evolutionary economic concepts of local search and performance heuristics first we argue that new entrants will introduce most designs that are new to a product market during an initial period of ferment second we argue that local search will lead most product market incumbents that introduce second or subsequent designs after their entry to introduce designs that are similar to those incorporated in their existing products third we argue that firms selling products based on designs that are losing aggregate share in the market will be likely to introduce products based on new designs while firms losing market share to firms that are selling the same design are unlikely to introduce new designs our empirical analysis examines the magnetic resonance imaging mri subfield of the diagnostic imaging equipment industry between 1980 and 1986 a period that begins with the introduction of the first mri design and ends with the emergence of widely accepted design characteristics the results support the argument that local search and performance heuristics along with other market factors and business characteristics influence design introduction during a period of ferment

interpreting the wage gap estimate from selectivity correction techniques using micro data abstract the selectivity correction techniques lead to two conceptually different wage gap estimates including the selectivity correction factors in the computation of the wage gap leads to a conditional estimate whereas excluding them leads to a potential estimate

dynamic capabilities what are they this paper focuses on dynamic capabilities and more generally the resource based view of the firm we argue that dynamic capabilities are a set of specific and identifiable processes such as product development strategic decision making and alliancing they are neither vague nor tautological although dynamic capabilities are idiosyncratic in their details and path dependent in their emergence they have significant commonalities across firms popularly termed best practice this suggests that they are more homogeneous fungible equifinal and substitutable than is usually assumed in moderately dynamic markets dynamic capabilities resemble the traditional conception of routines they are detailed analytic stable processes with predictable outcomes in contrast in high velocity markets they are simple highly experiential and fragile processes with unpredictable outcomes finally well known learning mechanisms guide the evolution of dynamic capabilities in moderately dynamic markets the evolutionary emphasis is on variation in high velocity markets it is on selection at the level of rbv we conclude that traditional rbv misidentifies the locus of long term competitive advantage in dynamic markets overemphasizes the strategic logic of leverage and reaches a boundary condition in high velocity markets copyright 2000 john wiley sons ltd

structure learning and the speed of innovating a two phase model of collective innovation using agent based modeling continual increase in the complexity of technologies and innovations has resulted in actors i e individuals or organizations becoming more dependent on other actor s knowledge and skills to complement their own skills in the innovation process as a result networks have become more and more prominent in affecting the innovation process conceptualizing innovation as a search and learning process that results in a successful product we introduce a two phase model of collective innovation that accounts for the deliberateness of the innovation process using agent based modeling we explore how interaction structure among a group of actors affects the speed at which the group can collectively innovate in addition we present results from counterfactual simulations to highlight the importance of deliberate search and changing realized connections in modeling collective innovation process moreover we discuss the effects of the structure under different mechanisms of learning and different levels of actor s learning capabilities copyright 2010 the author 2010 published by oxford university press on behalf of associazione icc all rights reserved oxford university press

inventorship and authorship as attribution rights an enquiry into the economics of scientific credit abstract authorship and inventorship are attribution rights upon which individual scientists build their reputation and career social and legal norms concerning their distribution within research teams are currently criticized for failing to inform third parties on individual contributions we examine the case of teams engaged in the double disclosure of their research results through both publications and patents and model the negotiation process taking place between junior or female team members and the senior male ones we suggest that the former may give up inventorship in order to secure authorship even when entitled to the both based on a sample of 680 patent publication pairs related sets of patents and publications we show that very frequently one or more authors of a publication do not appear as inventors of a related patent this is less likely to happen for first and last authors which is in accordance both with our model and the prevailing legal norms on inventorship however the probability of exclusion from inventorship also declines with seniority and increases for women which is compatible with our model only

fame and the fortune of academic economists how the market rewards influential research in economics we analyze the pay and position of 1 009 faculty members who teach in doctoral granting economics departments at fifty three large public universities in the united states using the web of science we have identified the journal articles published by these scholars and the number of times each of these articles has been subsequently cited in published research articles we find that research influence as measured by various measures of total citations is a surprisingly strong predictor of the salary and the prestige of the department in which professors are employed we also examine how coauthorship is rewarded by the market

canadian union nonunion wage differentials using extensive canadian longitudinal data from the years 1969 71 the authors estimate union nonunion wage differentials of 12 14 percent for 1969 and 13 16 percent for 1970 these estimates are not adjusted for selectivity because three different tests to identify selectivity yield no evidence of selectivity bias the authors argue that although testing for selectivity is often essential selectivity adjustments have resulted in greatly inflated estimates of union nonunion wage differentials in some studies and should therefore be used with caution

on the choice of incentives in firms abstract simple models of individual and group incentives under uncertainty are compared and comparative performance is shown to depend upon various exogenous parameters the incentive effects of profit sharing will thus vary with organizational and other characteristics that may be difficult to observe and attempts to quantify productivity effects that neglect selection bias are likely to be misspecified significant selection effects are found in previously used firm level data and productivity effects of existing profit sharing are found to be much larger than potential effects in firms without sharing arrangements this throws doubt on policies to encourage sharing in isolation

are you too young for the nobel prize abstract although age is not supposed to be a criterion for the award of the nobel prize it is commonly believed that it does play a role indeed econometric evidence in this paper also suggests such a role however the paper finds that if there is a preference for older nobel candidates this is introduced during the nomination process the paper actually finds that the nobel committee does not favor older nominees and that if anything it seems to partially offset the age premium introduced by the nominators

a framework linking intangible resources and capabilities to sustainable competitive advantage this article is concerned with the role of intangible resources in business strategy in particular it is concerned with identifying the intangible sources of sustainable competitive advantage sustainable competitive advantage results from the possession of relevant capability differentials regulatory and positional capabilities are concerned with intangible assets functional and cultural capabilities are concerned with competencies a framework linking intangible resources to capabilities has been devised and is used as the basis of a new technique for identifying the relative contribution which the different intangible resources make to competitive advantage the results of the use of this technique in six case studies are reported

the boundaries of firms as information barriers when contracts are incomplete the property rights theory of firms suggests that ownership of physical assets provides better outside options which in turn strengthen the owner s incentives to invest in the enterprise this approach is less suitable for human capital firms such as management consulting that lack physical assets this article develops an alternative theory for integration that sheds light on the boundaries of human capital firms in particular when a relationship between parties includes large potential externalities reducing the outside option of each party will be beneficial integration provides this reduction by blurring the contribution of individual parties within the firm and thus lowering their independent market valuation unlike some results in the property rights literature the results here are robust to variations in ex post bargaining solution

the role of home country demand in the internationalization of new ventures international new ventures invs have been documented to exist all around the world but the literature is silent on the frequency of such companies in different countries we contend that the propensity of new ventures to internationalize by forming international partnerships is higher in small domestic demand countries because they have a greater motivation given their limited local demand after discussing the methodological challenges in testing this hypothesis we do such a test by studying alliances in the health segment of the biotech industry in relatively small domestic demand countries australia israel and taiwan and by comparing the results with five large domestic demand countries uk germany france us and japan we find that young firms in the countries with smaller domestic demand are at least 3 times more likely to enter into international partnerships than their counterparts in countries with larger domestic demand we further demonstrate that this difference can primarily be explained by the difference in the size of domestic healthcare markets rather than other underlying opportunity structure related factors

optimal cognitive distance and absorptive capacity in this paper we test the relation between cognitive distance and innovation performance of firms engaged in technology based alliances the key finding is that the hypothesis of an inverted u shaped effect of cognitive distance on innovation performance of firms is confirmed moreover as expected we found that the positive effect for firms is much higher when engaging in more radical exploratory alliances than in more exploitative alliances the effect of cumulative r d turns out to be mixed it appears to increase absorptive capacity as expected but there is clear evidence that it also reduces the effect of cognitive distance on novelty value making it increasingly difficult to find additional novelty

strong ties weak ties and islands structural and cultural predictors of organizational innovation how does the tendency of entrepreneurs to engage in innovation relate to their structural and cultural embeddedness using micro data on entrepreneurial teams and the organizational innovations they attempt to develop this article presents a predictive model of creative action to address this question capacity for creative action is seen to be a function of the ability of entrepreneurs to i obtain non redundant information from their social networks ii avoid pressures for conformity and iii sustain trust in developing novel and potentially profitable innovations probit analyses of over 700 organizational startups suggest that these mechanisms exercise effects on innovation via the network ties and enculturation of entrepreneurs

trends in co authorship in economics since 1985 it has been often noted mcdowell and melvin 1983 barnett et al 1988 piette and ross 1992 sutter and kocher 2004 that the share of co authored papers in economics has been increasing steadily the purpose of this study is to investigate some of the theories as to why co authorship has been increasing in the economics profession using data on the publication records of faculty at 129 us colleges and universities that offer doctoral degrees in economics poisson and logit regression models are estimated to explain co authorship results indicate that the likelihood of co authorship is greater for papers that combine quantitative analysis with another field and for papers published in higher quality journals further co authorship appears to differ in the many subfields of economics with the field of economic history and history of thought journal of economic literature jel categories n and b to be the least likely to co author and the fields of financial economics jel category g and agricu

sectoral systems of innovation and production the concept sectoral system of innovation and production provides a multidimensional integrated and dynamic view of sectors it is proposed that a sectoral system is a set of products and the set of agents carrying out market and non market interactions for the creation production and sale of those products a sectoral systems has a specific knowledge base technologies inputs and demand agents are individuals and organizations at various levels of aggregation they interact through processes of communication exchange co operation competition and command and these interactions are shaped by institutions a sectoral system undergoes change and transformation through the co evolution of its various elements 2002 elsevier science b v all rights reserved

research note the researcher as a consumer of scientific publications how do name ordering conventions affect inferences about contribution credits when researchers from different fields with different norms collaborate the question arises of how name ordering conventions are chosen and how they affect contribution credits in this paper we answer these questions by studying two disciplines that exemplify the two cornerstones of name ordering conventions lexicographical ordering i e alphabetical ordering endorsed in economics and nonlexicographical ordering i e ordering according to individual contributions endorsed in psychology inferences about credits are unambiguous in the latter arrangement but imperfect in the former because alphabetical listing can reflect ordering according to individual contributions by chance we contrast the fields of economics and psychology with marketing a discipline heavily influenced by both based on archival data consisting of more than 38 000 journal articles we show that the three fields have different ordering practices in two empirical studies with 351 faculty and graduate student participants from all three disciplines as well as in a computer simulation we show that ordering practices systematically affect and shape the allocation of perceived contributions and credit whereas strong disciplinary norms in economics and psychology govern the allocation of contribution credits a more heterogeneous picture emerges for marketing this lack of strong norms has detrimental effects in terms of assigned contribution credits

regional trading arrangements natural or supernatural members of the customs union the potential unfavorable effects arise from the introduction of distortions in the relative price between the goods of members and nonmembers in terms of classic customs union theory the trade off is between trade creation and trade diversion the entire exercise assumes that the firstbest solution of worldwide free trade is not attainable for political reasons thus the choice between a status quo of nondiscriminatory most favored nation mfn tariffs and a move to preferential trading arrangements pta s is an exercise in the theory of the second best this paper summarizes recent research by the authors we make an evaluation of the

network structure and the diffusion of knowledge this paper models knowledge diffusion as a barter process in which agents exchange different types of knowledge this is intended to capture the observed practice of informal knowledge trading agents are located on a network and are directly connected with a small number of other agents agents repeatedly meet those with whom direct connections exist and trade if mutually profitable trades exist in this way knowledge diffuses throughout the economy we examine the relationship between network architecture and diffusion performance we consider the space of structures that fall between at one extreme a network in which every agent is connected to n nearest neighbours and at the other extreme a network with each agent being connected to on average n randomly chosen agents we find that the performance of the system exhibits clear small world properties in that the steady state level of average knowledge is maximal when the structure is a small world that is when most connections are local but roughly 10 percent of them are long distance the variance of knowledge levels among agents is maximal in the small world region whereas the coefficient of variation is minimal we explain these results as reflecting the dynamics of knowledge transmission as affected by the architecture of connections among agents

the dynamics of innovation from national systems and mode 2 to a triple helix of university industry government relations abstract the triple helix of university industry government relations is compared with alternative models for explaining the current research system in its social contexts communications and negotiations between institutional partners generate an overlay that increasingly reorganizes the underlying arrangements the institutional layer can be considered as the retention mechanism of a developing system for example the national organization of the system of innovation has historically been important in determining competition reorganizations across industrial sectors and nation states however are induced by new technologies biotechnology ict the consequent transformations can be analyzed in terms of neo evolutionary mechanisms university research may function increasingly as a locus in the laboratory of such knowledge intensive network transitions

willful blindness the inefficient reward structure in academic research this article examines how economics departments judge research articles and assign credit to authors it begins with a demonstration that only strictly prorated author credit induces researchers to choose e cient sized teams nevertheless survey evidence reveals that most economics departments only partially prorate authorship credit implying excessive coauthorship indeed a half century increase in coauthorship may be better explained by incomplete proration than by any increased specialization among authors a possible explanation for the reliance on incomplete proration is the self interest of economists who are more likely to engage coauthorship full professors the self interest of senior faculty may also explain the relatively small role given to citations in senior promotions a rational response by economists to the under proration of author credit is to engage in false authorship although false authorship is of dubious ethical status it may have the perverse impact of improving the e ciency of team production grossly excessive coauthorship where little attention is paid to most authors listed on a paper as found in some other academic disciplines may be the path down which economics is headed if the reward structure is not altered jel a14 o30 i23

division of labor organizational coordination and market mechanisms in collective problem solving abstract this paper builds upon a view of economic organizations as problem solving arrangements and presents a simple model of adaptive problem solving driven by trial and error learning and collective selection institutional structures and in particular their degree of decentralization determine which solutions are tried out and undergo selection it is shown that if the design problem at hand is complex in terms of interdependencies between the elements of the system then a decentralized institutional structure is unlikely ever to generate optimal solutions and therefore no selection process can ever select them we also show that nearly decomposable structures have in general a selective advantage in terms of speed in reaching good locally optimal solutions

citations in economics measurement uses and impacts i describe and compare sources of data on citations in economics and the statistics derived from them constructing data sets of the post publication citation histories of articles published in the top five journals in the 1970s and 2000s i examine distributions and life cycles of citations compare citation histories of articles in different subspecialties in economics and present evidence on the history and heterogeneity of those journals impacts and the marginal citation productivity of additional coauthors i use a new data set of the lifetime citation histories of over 1 000 economists from thirty universities to rank economics departments by various measures and demonstrate the importance of intra and interdepartmental heterogeneity in productivity throughout the discussion summarizes earlier work including the impacts of citations on salaries and nonmonetary rewards and how citations reflect judgments about research quality in economics and the importance of economic ideas

the timing of arbitration and sequential bargaining this paper links two literatures the paper adds to results on disagreement in per fect information bargaining games it is found that under certain conditions the possibility of third party intervention induces delay the paper is also the first attempt to model the arbitration process in a sequential bargaining framework it therefore adds to the theoretical arm of the industrial relations literature by permitting an explicit temporal setting for the chilling effect and alternative mechanisms for the timing of arbitration