r d investments under endogenous cluster formation abstract we provide an innovative theory based explanation for the positive relationship between firms r d intensity and their degree of r d cooperation we show that when oligopolistic firms decide on long term r d investment before forming research clusters among competitors investment incentives are increased by the desire to become a member of an attractive cluster this can result in over investment compared to the welfare optimum and compared to a scenario where research clusters are ex ante fixed thereby as a theoretical contribution we fully characterize the equilibria of the unanimity game on cluster formation with heterogeneous firms

the use of parametric and non parametric frontier methods to measure the productive efficiency in the industrial sector a comparative study abstract parametric frontier models and non parametric methods have monopolised the recent literature on productive efficiency measurement empirical applications have usually dealt with either one or the other group of techniques this paper applies a range of both types of approaches to an industrial organisation setup the joint use can improve the accuracy of both although some methodological difficulties can arise the robustness of different methods in ranking productive units allows us to make a comparative analysis of them empirical results concern productive and market demand structure returns to scale and productive inefficiency sources the techniques are illustrated using data from the us electric power industry

the tale of two research communities the diffusion of research on productive efficiency abstract the field of theoretical and applied efficiency analysis is pursued both by economists and people from operational research and management science each group tends to cite a different paper as the seminal one recent availability of extensive electronically accessible databases of journal articles makes studies of the diffusion of papers through citations possible research strands inspired by the seminal paper within economics are identified and followed by citation analysis during the 20 year period before the operations research paper was published the first decade of the operations research paper is studied in a similar way and emerging differences in diffusion patterns are pointed out main factors influencing citations apart from the quality of the research contribution are reputation of journal reputation of author number of close followers colleagues cadres of proteges ph d students and extent of network invisible college such factors are revealed by the citing papers in spite of increasing cross contacts between economics and operations research the last decades co citation analysis reveals a relative constant tendency to stick to own camp references

competition cooperation and innovation organizational arrangements for regimes of rapid technological progress abstract discussions of the link between firm size and innovation are outmoded because the boundaries of the firm have become fuzzy in recent decades strategic alliances constellations of bilateral agreements among firms are increasingly necessary to support innovative activities such alliances can facilitate complex coordination beyond what the price system can accomplish while avoiding the dysfunctional properties sometimes associated with hierarchy antitrust law and competition policy need to recognize that these new organizational forms are often the functional antithesis of cartels though they may have certain structural similarities a more complete understanding of bilateral contracts and agreements ought to reveal when and how cooperation can support rather than impede innovation and competition

mergers acquisitions and innovation performance in the telecommunications equipment industry the worldwide telecommunications equipment industry has experienced an enormous number of mergers and acquisitions m a this article examines the innovation determinants of m a activity a

complementarity and external linkages the strategies of the large firms in biotechnology in biotechnology large firms enter into different kinds of linkages with universities and small medium sized research intensive firms we test the hypothesis that the strategies of external linkage of the large firms with other parties are complementary to one another we show that if any two strategies are complementary i e undertaking more of one strategy raises the marginal value of the other then they are positively correlated using data for a sample large us european and japanese chemical and pharmaceutical producers we find that the strategies above are positively correlated even after controlling for firm specific characteristics

exploration during turbulent times an analysis of the relation between cooperation in innovation activities and radical innovation performance during the economic crisis this article investigates the relation between cooperation in innovation activities and innovation before and during the last economic recession we find that cooperation in innovation activities has a stronger relation with radical innovation performance during the economic recession than before this being true irrespectively of whether the partners are national or international this benefit from cooperation during the economic turmoil is higher in the case of firms having different types of partners simultaneously we also find that past cooperation in innovation activities is positively associated to innovation performance during the crisis

cooperative agreements and the theory of the firm focusing on barriers to change abstract cooperative agreements between firms have become a significant phenomenon in the 1980s and have been analyzed by various approaches including economics organizational theory and business strategy this paper draws on these different strands of the literature to argue that cooperative agreements have led to focus the analysis of firms organization on the issue of change as a consequence cooperative agreements have contributed to recent developments of the theory of the firm in favor of competence based and evolutionary approaches the analysis is then extended to the case of multinational firms

concubinage or marriage informal and formal cooperations for innovation based on a sample of german inno innovating firms that contains information on formal and informal innovation cooperation between customers and suppliers we state that firms perceive informal cooperation as being more important than formal cooperation modes we then investigate the determinants of firms decisions to engage into the respective cooperation modes in line with previous empirical work we do not find much empirical evidence for the relevance of incoming spillovers in addition our results suggest that this finding holds as well for informal cooperations a firms ability to protect its proprietary innovations however seems to be a key determinant of formal as well as informal cooperations furthermore absorptive capacity and the organizational structure of in house r d play an important role another relevant driver of vertical cooperations are the innovation dynamics at the he industry level firms who operate an r d department and firms who are involved in costly r d projects tend to cooperate formally rather than informally

agreements between firms and the technological life cycle model evidence from information technologies abstract contrarily to most previous contributions which have addressed the issue of cooperative agreements essentially in a perspective of comparative statics in this paper a model is proposed that relies on the technological trajectory notion suggested by evolutionary theories and emphasizes the relevance of the technological and market dynamics in explaining why and to what extent firms have recourse to agreements in particular it is claimed that the propensity of firms towards collaborative ventures and the characteristics of the cooperation depend upon the phase of the technological life cycle of the industry branch in which the cooperation takes place based on a cross sectional analysis of 45 industry branches in the information technology industrial system the paper also provides empirical evidence supporting the argument that the propensity towards agreements and the nature of the agreements concluded do change during the technological life cycle to this end it takes advantage of the arpa database developed at the polytechnic of milan and containing detailed information on over 2 000 agreements concluded in the 1980 1986 period all over the world in the semiconductor data processing and telecommunications industries

some models for estimating technical and scale inefficiencies in data envelopment analysis in management contexts mathematical programming is usually used to evaluate a collection of possible alternative courses of action en route to selecting one which is best in this capacity mathematical programming serves as a planning aid to management data envelopment analysis reverses this role and employs mathematical programming to obtain ex post facto evaluations of the relative efficiency of management accomplishments however they may have been planned or executed mathematical programming is thereby extended for use as a tool for control and evaluation of past accomplishments as well as a tool to aid in planning future activities the ccr ratio form introduced by charnes cooper and rhodes as part of their data envelopment analysis approach comprehends both technical and scale inefficiencies via the optimal value of the ratio form as obtained directly from the data without requiring a priori specification of weights and or explicit delineation of assumed functional forms of relations between inputs and outputs a separation into technical and scale efficiencies is accomplished by the methods developed in this paper without altering the latter conditions for use of dea directly on observational data technical inefficiencies are identified with failures to achieve best possible output levels and or usage of excessive amounts of inputs methods for identifying and correcting the magnitudes of these inefficiencies as supplied in prior work are illustrated in the present paper a new separate variable is introduced which makes it possible to determine whether operations were conducted in regions of increasing constant or decreasing returns to scale in multiple input and multiple output situations the results are discussed and related not only to classical single output economics but also to more modern versions of economics which are identified with contestable market theories

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

structure and strategy within heterogeneity multiple dimensions of regional networking steiner m and ploder m structure and strategy within heterogeneity multiple dimensions of regional networking regional studies clusters are highly differentiated across sectors regions and countries both theoretical and empirical approaches therefore have to avoid universalization based on recent approaches various forms of network relations and possible contents of interactions of firms connected with knowledge exchange are elaborated it is argued that these interactions are distinctively structured that the diffusion of knowledge is highly selective and strongly dependent on the position of firms within networks and on their absorptive capacity by applying network analysis to different dimensions of interactions between firms it is shown that physical linkages within the medium technology cluster under scrutiny are rather weak that interactions based on different forms of knowledge exchange are denser and that direct links to the science base seem to be more prominent than long term su

a ricardo model with economies of scale abstract this paper extends the analysis of the classical n good two country ricardo model of international trade to the case where the production functions have economies of scale it addresses the technical difficulties inherent in economies of scale by new integer programming and linear programming methods the analysis reveals the existence of a well defined region which fills in solidly with equilibrium points as the number of goods becomes large new economic conclusions follow from the ability to analyze these large models among them that in the presence of economies of scale considerable conflict exists between the interests of the two trading partners journal of economic literature classification numbers c61 c62 c68 f12

innovation diversity and diffusion a self organisation model a number of features of innovation diffusion are identified appropriability diversity expectations selection learning and spillover externalities a dynamic model is formul ated to embed the diffusion question into a more general framework of disequilibrium competition the model incorporates distinct vintage structures reflecting a change in technological trajectory learning by using a nd expectations driven investment rules of thumb simulation studies reveal robust quasi logistic curves but a complicated pattern of net market share gains and losses uncertainty regarding the rationality of early or late adoption it is argued ensures that the requisite behavioral variety is present to generate these diffusion patterns copyright 1988 by royal economic society

the participation of new technology based firms in eu funded r d partnerships the role of venture capital this paper investigates the participation of new technology based firms ntbfs in eu funded r d partnerships we examine whether venture capital vc backed firms are more likely to enter these partnerships than their non vc backed peers and the role of the ownership and governance of the vc investor we resort to a mixed method approach we use qualitative information collected through interviews with managers of ntbfs and vc firms to better illustrate our deductively derived theoretical hypotheses that are then tested through a large scale econometric analysis the econometric analysis takes advantage of the vico dataset which includes longitudinal data on 8346 ntbfs from seven european countries observed from 1995 to 2008 out of which 758 were vc backed the econometric results show that vc backing has a strong positive impact on ntbfs participation in eu funded r d partnerships but the magnitude of this effect rapidly decreases with ntbfs prior experience of this type of partnership moreover the magnitude of the impact of vc backing considerably differs depending on the type of investor with bank and government vc exhibiting the strongest positive effects

universities and fundamental research reflections on the growth of university industry partnerships the recent rise in university industry partnerships has stimulated an important public policy debate regarding how these relationships affect fundamental research in this paper we examine the antecedents and consequences of policies to promote university industry alliances although the preliminary evidence appears to suggest that these partnerships have not had a deleterious effect on the quantity and quality of basic research some legitimate concerns have been raised about these activities that require additional analysis we conclude that additional research is needed to provide a more accurate assessment of the optimal level of commercialisation

is western europe losing the technological race abstract using a variety of indicators this paper compares technological levels in japan the usa and w europe there is no justification for assuming general european technological backwardness whilst it lags in electronics and since 1975 has had a relatively slow rate of growth of innovative activities it also has sectors of strength chemicals machinery production engineering and countries whose relative commitments of resources to innovative activities are at least equal and sometimes superior to those of japan and the usa frg sweden switzerland its main policy challenges are to increase the rate of growth of innovative activities in lagging countries and to ensure pervasive applications of information technology similarly there is no convincing evidence that w europe is relatively backward in converting technology into economically efficient innovations some policy problems are significant in all three regions skill shortages whilst others are in the usa and w europe short term planning horizons of top management particular european problems are the effects of social legislation on worker flexibility and mobility of national regulations on intra european competition and of slow rates of growth of output on the growth of innovative activities japan and the usa have their problems with the latter continuously under challenge from the former and increasingly specialised in defence and raw materials related technologies

evolutionary diffusion internal and external methods used to acquire encompassing complementary and incremental technological changes in the lithotripsy industry this study links theories concerning methods that firms use to acquire technology with theories concerning types of technological change we place particular emphasis on interorganizational relationships we predict that firms will often acquire know how needed for encompassing technological change through equity based arrangements with other organizations complementary technological changes through nonequity interorganizational arrangements and incremental changes through internal r d our theory draws on perspectives that emphasize the need to develop new competencies within a business organization and to protect the value of existing competencies our empirical analysis examines methods of technology acquisition that firms have used in the commercialization of medical lithotripters which are devices that fragment stones in the kidney and gall bladder the analysis contributes to a better understanding of how technology acquisition methods vary with the manner in which technological change relates to a firm s existing capabilities the study also helps develop our understanding of the evolutionary processes by which capabilities diffuse through an industry 1998 john wiley sons ltd

keynes lucas and scientific progress in one of those marvelous coincidences of intellectual history robert lucas was born the year after the publication of keynes general theory for the first thirty five years of their mutual lives the two apparently coexisted in harmony but their relationship has been tumultuous ever since lucas has frequently criticized keynesian economics as poor science and it is precisely in that spirit that i want to address the debate today we all know the old joke about the professor who uses the same exam questions year after year but changes the answers that joke encapsulates all too well what has happened to macroeconomics these last fifteen years and seems to reflect poorly on economics as a science or does it on second thought the best answers to scientific questions do change as new observations are made as new experiments are run and as better theories are developed the issue is whether the answers to important questions in macroeconomics have changed for good scientific reasons or for other reasons the joke provides the framework for my talk i will pose eight exam questions and for each one i will summarize the answers given by keynes by lucas and his followers and by modern keynesians i pick only questions that are answered differently by keynesians and lucasians and that are central to contemporary macroeconomic debates the focus is on whether the keynesian or new classical answers have greater claim to being scientific each student must answer every question i are expectations rational

res diffusion and r d investments in the flexibilisation of the european electricity networks abstract the present analysis adds up to the discussion carried around the flexibilisation of the electricity networks as means of higher diffusion of renewable energy sources res inspiring from innovation studies the paper proposes an economic rationale for considering res technology manufacturers as investors in electricity networks moreover the present analysis scrutinize the extent to which the various economic operators within specific segments of the power supply chain invest in a portfolio of research and development activities among which the electricity grids and storage technologies the intensity of these research investments was mapped across the european countries for the year of 2011 their geographic distribution confirms the rationale of an analysis based on canonical correlation testing the associations between res market diffusion and power network indicators the analysis provides useful insights for specific technology such as the one revealing pv market sensitivity to research investments in storage technologies confirming a potential business model coupling the two technologies accommodating this pattern and enabling further diversification of research portfolios the public incentives could be redesigned in order to address the flexibilisation of power networks

r d cooperation and failures in innovation projects empirical evidence from french cis data the second french community innovation survey cis indicates that 14 of rd collaborating firms had to abandon or delay their innovation projects due to difficulties in their partnerships an outcome which we term cooperation failures controlling for sample selection on the cooperation decision our estimates show that firms collaborating with competitors and public research organizations pros especially when they are foreign are more likely to delay or stop an innovation project because of difficulties encountered in their rd partnerships more surprisingly firms collaborating with their suppliers also face a higher risk of cooperation failures at least for pros firms can reduce the risk of cooperation failures through previous experiences in partnerships larger firms and group subsidiaries are less likely to face cooperation failures and so do firms in industries with a strong appropriability regime

the corporation competition and the invisible hand few would disagree that adam smith s invisible hand theorem is the heart of the economist s weltanschauung ask whether trade barriers should be lowered the spread of multinational corporations restrained oil prices deregulated cartels dissolved or more fundamentally whether a market based capitalist system is economically superior to a state run socialist system and economists almost certainly will begin to answer the question by trying to apply the theorem every student knows that the theorem depends on the assumption of atomistic competition which in turn assumes that the system is decentralized and that no competitor is large relatively to others there is another crucial assumption however that is often ignored and usually underemphasized namely that all competition is price competition in reality one of the most distinctive features of capitalism one that is most often raised in lay discussions of its merits and demerits is the prevalence of other forms of competition such as competition in research development and advertising competition to obtain and hold monopoly and competition for corporate growth these various forms of non price competition we shall aim to show are not clearly analogous with the theory of price competition more non price competition rather than less is not necessarily pareto optimal self evidently the production side of a market economy is decentralized only to a limited degree i e to the level of a decision making unit composed of more than one human such a unit playing neuron to the invisible hand is typically called a firm it is in fact a team rather than remaining small firms are in practice composed of any number of individuals from a handful on to half a million some

adoption and diffusion of an innovation of uncertain profitability the argument has frequently been made that the pattern of diffusion associated with most new innovations will typically have certain characteristics a diffusion curve for an innovation is usually defined as the proportion of its potential users who have already adopted as a function of time measured from the first adoption many empirical studies by both economists and other social scientists have shown that diffusion curves nearly always have two distinct characteristics i they are s shaped the proportion adopted is an increasing function of time which is initially convex but eventually becomes concave and ii they tend to be right hand skewed the inflection point occurs at a time corresponding to a proportion adopted which is less than one half so that the function is concave over the greatest amount of time in fact this skewing is occasionally severe enough to make the diffusion curve appear concave everywhere the focus of most empirical studies of innovation diffusion has centered on identification of either the major determinants of the speed of diffusion or the characteristics of firms which determine how long they delay adoption the seminal contributions are griliches 6 study of hybrid corn and mansfield s 121 study of 12 industrial innovations these studies and most of the similar ones following conclude that diffusion is faster for innovations with higher profitability and that large firms tend to be the earliest adopters some studies e g mansfield 121 herregat 71 have attempted to ascertain

r d appropriability opportunity and market structure new evidence on some schumpeterian hypotheses one of the largest bodies of literature in the field of industrial organization is devoted to the interpretation and testing of several hypotheses advanced by joseph schumpeter 1950 concerning innovation and industrial market structure one set of hypotheses focuses on the role of firm size as a determinant of r d spending and the rate of technological advance another set focuses on the effect of market concentration on r d and technological advance in this paper we reexamine the latter set of hypotheses at the industry level using new data on r d appropriability and technological opportunity collected by levin et al 1984 in a survey of r d executives in 130 industries

how technically efficient are singapore s manufacturing industries this study attempts to understand the technical efficiency performance i e how well resources and given technology are being used in 28 manufacturing industries in singapore from 1975 1994 using an improved version of the stochastic frontier model in addition an analytical model is used to investigate the causes of technical inefficiency in these industries to help policy formulation the efficiency performance of foreign and local dominated industries is also closely examined

r d cooperation in smes the direct effect and the moderating role of human capital abstractwe analyse the determinants of r d cooperation for smes in italy we introduce in the literature human capital as one of the main determinants of r d cooperation concentrating on its moder

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

r d and the growth of firms empirical analysis of a panel of italian firms abstract this paper deals with the growth of firms and with their innovative activities the main hypothesis of the paper maintains that firms with a strong commitment to r d have a higher rate of growth because they succeed in the product market after a review of the related literature the paper presents an econometric analysis of the r d growth of firms relation based on a database of italian firms data on a sample of 500 firms with time series in the range 1989 1997 were drawn from the mediocredito survey of italian manufacturing descriptive analysis shows that the sales growth rate of firms with r d is higher than that of firms without r d econometric analysis is performed in two steps first we apply a panel unit root test im k pesaran h shin y 1997 testing for unit roots in heterogeneous panels dae university of cambridge mimeo to verify whether the firm size significantly affects firm growth the test confirms gibrat s law that firm size has a stochastic trend second we explore whether there are variables with stochastic trends that could account for firm size according to our estimates the growth rate of firms is positively correlated with research intensity in these estimates a further interesting result is that investment in ict is not significant or shows a parameter with negative sign

technological capabilities and patterns of innovative cooperation of firms in the uk regions iammarino s piva m vivarelli m and von tunzelmann n technological capabilities and patterns of innovative cooperation of firms in the uk regions regional studies this paper focuses on the relationship between firms technological capabilities and different forms of cooperation for innovation paying specific attention to the role of regional location of the firm the findings based on the fourth uk community innovation survey cis4 show that cooperation within business groups vertical cooperation with customers and suppliers and horizontal cooperation with universities turn out to be significantly associated with firms technological capabilities however it is found that the analysis for the uk as a whole masks stark regional differences in terms of the relationship between local and non local collaborative linkages and firms technological capabilities and competences iammarino s piva m vivarelli m and von tunzelmann n

knowledge interactions between universities and industry in austria sectoral patterns and determinants the relationship between university and industry is a complex and heterogeneous phenomenon and an important topic of the recent debate on innovation systems this chapter explores the role of knowledge flows between universities and firms in the austrian national innovation system and provides valuable insights into several dimensions of knowledge flows that are not typically explored in research on this topic the patterns of interaction between 46 different fields of science and 49 economic sectors represent an important and interesting outcome of the analysis left censored tobit models are used to evaluate the effect of sector specific and science field specific characteristics upon the probability of knowledge interaction disaggregated by type of interaction

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 innovation performance of irish and foreign owned firms the roles of r d and networking this paper contributes to the growing evidence that irish and foreign owned firms based in ireland conduct their innovation activities differently from each other it tests the cohen and levinthal hypothesis separately for irish and foreign owned firms that undertaking r d and collaborating with external networks together enhance the probability of product and process innovation to control for potential endogeneity of the external networking variables a two step procedure is used with predicted probabilities used as instruments in the estimated production functions based on data from the irish community innovation survey 2006 to 2008 the results suggest that irish owned firms which engage in external networks with public knowledge sources while simultaneously undertaking r d are more likely to innovate than firms which perform these two activities individually irish owned firms which engage in backward networking for product and forward networking for process innovation while also undertaking r d are less likely to be innovative perhaps suggesting a substitution effect these results for irish owned firms provide some support for cohen and levinthal s hypothesis however foreign owned firms seem to behave differently being largely self contained and relying exclusively on intramural r d for innovation as the external networking variables both individually and when interacted with r d have no effect on innovation likelihood

incumbents use of pre entry alliances before expansion into new technical subfields of an industry industry incumbents frequently delay entry into emerging technical subfields fearing product cannibalization and uncertain investment and enter only after technical and market uncertainties have subsided we predict that many incumbents particularly stronger firms will participate in alliances with other firms before their standalone entry the alliances will be used to realize part of the value of specialized assets and to gain information about the emerging products and markets we support the predictions with evidence from the us market of the medical diagnostic imaging industry

an analysis of cooperative research and development i analyze the effects of cooperative research whereby member firms agree to share the costs andfruits of a research project before they undertake it in this model industrywide agreements tend to have socially beneficial effects when the degree ofproduct market competition is low when there are r d spillovers in the absence of cooperation when a high degree of sharing is technologically feasible and when the agreement concerns basic research rather than development activities i show that a royalty free cross licensing agreement among any number offirms lowers the equilibrium level of innovation even though it increases the efficiency of r d through sharing

impact on firms of the use of knowledge external sources a systematic review of the literature this study summarizes the main conclusions from a systematic review of the empirical literature regarding the impact on firms of the use of knowledge external sources universities research institutes and knowledge intensive business services with the aim to organize the literature we classify the different works according to the research question addressed i which firms use knowledge external sources ii do firms using knowledge external sources achieve better results and iii which firms benefit the most from using knowledge external sources stylized facts are that larger more r d intensive and high tech firms are more likely to use knowledge external sources and that use of knowledge external sources is associated to firms higher technical results less attention has been paid to the third question and evidence is not conclusive several recommendations for future research emerge first to take in greater consideration methodological issues so that potential biases in the results caused by sample selection and endogeneity are handled properly second to pay more attention to heterogeneous outcomes third to use continuous indicators of depth and breadth of links allowing for non linear relationships and fourth to extend evidence for developing countries and service industries

the influence of market demand upon innovation a critical review of some recent empirical studies abstract a number of recent empirical studies of technical change at the level of the individual firm have concluded that market demand is the dominant influence upon the innovation process calling forth innovations in market economies the pace of innovation in the private sector heavily influences the growth of national output and productivity and these studies and their conclusions have therefore received much attention having been extensively quoted in discussions of appropriate government policy for the encouragement of innovation this paper reviews a number of these studies and concludes that their findings and the interpretations of their findings in the secondary literature are seriously flawed and in many cases invalid the proposition that market demand governs the innovation process is by no means conclusively demonstrated in these studies and they are therefore inadequate and inappropriate guides for the formulation of policy most of the studies examined employ a working definition of demand factors which is so broad as to embrace a range of possible influences upon innovation which should more properly be classified elsewhere the concept of demand utilized in these studies bears little resemblance to the more restrictive and precise definition of market demand found in economics in addition the phenomena analyzed in these studies are a very heterogeneous lot the studies do not address identical empirical questions and their findings are as a result neither uniform nor unambiguous both demand and supply side influences are crucial to understanding the innovation process and it is the exclusive preoccupation with only one set of these forces which is criticized in this paper some implications of the criticism for government policy toward innovation are discussed in the conclusion

firm specific knowledge and technical efficiency of watch and clock manufacturing firms in china abstract this paper tests whether firm specific knowledge in terms of capital intensity product differentiation and research and development contribute to an improvement in firm efficiency based on a representative dataset from the watch and clock industry in southern china the technical efficiency is estimated using a non parametric data envelopment analysis approach through a tobit model we investigate whether a firm s specific knowledge influences its efficiency the results suggest that capital intensity and research and development have a positive effect on the efficiency of the sample firms and identify their roles of firm specific knowledge in explaining inter firm variation in efficiency however sample firms with high level of product differentiation were found to have no obvious advantages in efficiency performance

what drives the formation of valuable university industry linkages insights from the wine industry abstract most of the literature on university industry u i linkages assumes that these linkages are beneficial per se we question this assumption suggesting that not all such linkages are equally helpful in this paper we explore the factors driving the formation of valuable u i linkages conceived as those linkages between universities and firms that have a higher potential to diffuse knowledge to other firms in their regional economy our empirical strategy combines case study methodology with econometric techniques using data from two wine clusters in chile and in italy the firm s knowledge base is found to be a key driver of valuable u i linkages we conclude that selectivity should be encouraged among policy makers endeavouring to promote u i linkages

technological internationalisation in the electro technical industry a cross company comparison of patenting patterns 1986 2000 abstract this paper addresses the issue of r d internationalisation of two multinationals in the electro technical industry ge and abb by means of a patent data analysis the overwhelming majority of both companies r d activities are concentrated in western europe and north america the locational overlap between the two firms activities is small these results are consistent with findings from earlier studies that 1 there is little evidence to suggest that the production of technology is globalised in a general sense and 2 that tapping knowledge from an industry s global lead location plays a very limited role in foreign r d investments

firm technological trajectory as a driver of eco innovation in young small and medium sized enterprises abstract few studies have focused on green innovation in young small and medium sized enterprises instead research tends to focus on large companies with formal research and development departments studying the influence of the firm s current technological strategy as well as the regulatory framework as a key driver of eco innovation this paper proposes that the combination of a firm s technological trajectory and its current research and development strategy are key determinants of eco innovation the authors investigate these relationships with panel data on 212 young firms in spain analysing their innovation strategy and behaviour during their first 10 years of activity the results show that the firms cluster into four technological trajectories but only market oriented innovators engage significantly more in eco innovation these firms are characterized by a high use of formal appropriability mechanisms market opportunity recognition arising from cooperation and high knowledge cumulativeness this paper sheds light on whether and the extent to which a firm s technological trajectory is a driver of eco innovation it confirms that firms that search for opportunities and have a continuous collaboration with market players are more prone to develop eco innovations additionally it shows that path dependence occurs in the development of eco innovations in that a highly developed innovation capacity leads to additional green innovation in the future the findings indicate that young small firms need to develop innovation capabilities that also enable them to adopt advanced technology before striving to become greener the paper concludes that policies designed to stimulate cooperative networking with other market players an upgrading of technological capabilities and the adoption of new technologies are all desirable because they contribute to improving the environmental impact of firms innovations

factors affecting university industry r d projects the importance of searching screening and signalling this paper presents an empirical analysis of the determinants of research cooperation between firms and public research organisations pros for a sample of innovating small and medium sized enterprises smes the econometric analysis is based on the results of the know survey carried out in seven eu countries during 2000 in contrast to earlier works that provide information about the importance of pros research we know the number of firm pro collaborative research and development r d projects this allows us to study the determinants of firm collaboration with pros in terms of both the propensity of a firm to undertake r d projects with a university do they cooperate or not and the extent of this collaboration number of r d projects two questions are addressed which firms cooperated with pros and what are the firm characteristics that might explain the number of r d projects with pros the results of our analysis point to two major phenomena first the propensity to forge an agreement with an academic partner depends on the absolute size of the industrial partner second the openness of firms to the external environment as measured by their willingness to search screen and signal significantly affects the development of r d projects with pros our findings suggest that acquiring knowledge through the screening of publications and involvement in public policies positively affects the probability of signing an agreement with a pro but not the number of r d projects developed in fact firms that outsource research and development and patent to protect innovation and to signal competencies show higher levels of collaboration

assessing complementarity in organizational innovations for technological innovation the role of knowledge management practices we empirically investigate the pattern of complementarity among four organizational practices firm level data were drawn from the community innovation survey carried out in luxembourg supermodularity tests confirm the crucial role of organizational innovation in raising firms technological innovation the pattern of complementarity across organizational practices differs according to the type of innovation i e product or process as well as according to whether the firm is in the first stage of its innovation process i e being innovative or not or in a later stage i e sales of new products

information and economic analysis a perspective ten years ago i delivered a paper before this group with the title information and economic analysis i chose the title deliberately i did not call the subject on which i was speaking the economics of information because to do so would have been to suggest that my topic like the economics of agriculture or the economics of industry or the economics of labour represented another branch of specialisation within economics i wanted to suggest that informational considerations were in fact central to the analysis of a wide variety of phenomena that they constituted a central part of the foundations of economic analysis at the time though economists had long paid lip service to the importance of information there was little formal literature the last decade has seen a burgeoning of the literature it has become to the late 7o s and early 8o s what growth theory was to the early 6o s and it has been greeted with some of the same scepticism there seems to be a myriad ofspecial cases and few general principles the little examples are often contrasted unfavourably with the generality of general equilibrium theory what have we learned have diminishing returns set in are there fruitful directions for future research and if so what are they these are the questions which i wish to address here the work of the past decade has made i think a fundamental and lasting contribution to economic analysis the contributions have been both negative and positive we have learned that much of what we believed before is of only limited validity that the traditional competitive equilibrium analysis though having the superficial appearance of generality in terms of superscripts and subscripts is indeed not very general the theory is not robust to slight alterations in the informational assumptions it is but a special and not very plausible example among the possible set of informational assumptions which can be employed to characterise an economy at the same time the theory has been able to provide insights into phenomena about which the traditional model had nothing to say or which seemed inconsistent or inexplicable within the competitive paradigm it has provided some of the micro foundations for macro economics it has provided the basis of a new theory of the firm of a new new welfare economics and of a theory of economic organisation including a comparison of economic

universities in emerging economies bridging local industry with international science evidence from chile and south africa emerging economies are now becoming more central in global competition to achieve this many countries have invested to develop into knowledge economies universities have a role to play in this transformation both as generators of new knowledge as well as actors that can interact with the local industry and contribute to its innovativeness this paper explores using two case studies in the chilean and south african wine industry how universities connect international science to domestic industry it finds that this connection occurs through a few bridging researchers who display particular characteristics compared with their colleagues bridging researchers are more talented than average researchers both because they publish more in international journals and or because they have received awards for their academic work this finding may have significant policy implications as policies aimed at strengthening the skills of these researchers should be welcomed in catching up industries copyright the author 2012 published by oxford university press on behalf of the cambridge political economy society all rights reserved oxford university press

technological diversity uncertainty and innovation performance abstractwe analyse the impact of technological diversity on innovation performance in the discovery stage measured by r d intensity and patent applications and in the commercialization stage mea

does the development of environmental innovation require different resources evidence from spanish manufacturing firms in recent years environmental innovations are getting increasingly at the center both of the scientific debate and of the policy maker agenda adopting the resource based view this paper provides a comprehensive framework for understanding the specific role of internal external and hybrid resources in the environmental innovation development using a dataset of 4829 spanish manufacturing firms and estimating probit models it is found that internal resources have greater importance for environmental innovations moreover green innovators seem to be characterized by more intensive external relationships for hybrid resources acquisition of equipment but not of patents is more relevant finally evidence suggest the relevance of complementing the analysis of the external factors triggering environmental innovations with those of the internal resources the firm has access to in order to fully understand and support the development of environmental innovations

imitation costs and patents an empirical study it has long been recognised that the costs of imitating new products have an important effect on the incentives for innovation in a market economy as arrow i962 and others have pointed out if firms can imitate an innovation at a cost that is substantially below the cost to the innovator of developing the innovation there may be little or no incentive for the innovator to carry out the innovation in their discussions of the innovation process economists frequently have called attention to the major role played by the costs of imitation but there has been little or no attempt to measure these costs to test various hypotheses concerning the factors influencing them or to estimate their effects in this paper we report some findings of what seems to be the first study of this topic in addition we present data regarding the effects of patents on imitation costs and on the rate of innovation

what marshall didn t know on the twentieth century s contributions to economics some of this century s many valuable contributions to economics like macroeconomics econometrics and game theory are widely recognized however arguably equally important is the enhanced role of empirical study permitted by more abundant data and improved methods also insufficiently recognized are the increased rigor and use of applied economics in public finance regulation corporation finance etc employing abstract theory and sophisticated data analysis the striking contrast with earlier intuitively based applied economics and empirical study is illustrated comparison with marshall s principles also indicates that except for macroeconomics remarkably little space in today s texts deals with some of the rich contributions of this century what has twentieth century economics accomplished a great deal as will be shown here but the discussion needs an illuminating starting point in 1946 after arriving at the london school of economics as an entering graduate student 1 i soon found that in

learning from competing partners outcomes and durations of scale and link alliances in europe north america and asia this paper investigates the outcomes and durations of strategic alliances among competing firms using alliance outcomes as indicators of learning by partner firms we show that alliance outcomes vary systematically across link and scale alliances link alliances are interfirm partnerships to which partners contribute different capabilities while scale alliances are partnerships to which partners contribute similar capabilities we find that partners are more likely to reorganize or take over link alliances than scale alliances by contrast scale alliances are more likely to continue without material changes the two types of alliances are equally likely to shut down at similar ages these results support the view that link alliances lead to greater levels of learning and capability acquisition between the partners than do scale alliances copyright 2000 john wiley sons ltd

firm size age and efficiency evidence from kenyan manufacturing firms translog stochastic frontier production functions are estimated using an unbalanced panel of 235 kenyan manufacturing firms in the food wood textile and metal sectors the sectors are estimated individually in order to investigate whether technical efficiency is systematically related to the size and age of firms the evidence suggests that firm size has a positive and significant effect in the wood and textile sectors the age effect is less systematic but is insignificant in all sectors except textiles

consumer s surplus without apology the purpose of this paper is to settle the controversy surrounding consumer s surplus and by so doing to validate its use as a tool of welfare economics i will show that observed consumer s surplus can be rigorously utilized to estimate the unobservable compensating and equivalent variations the correct theoretical measures of the welfare impact of changes in prices and income on an individual i derive precise upper and lower bounds on the percentage errors of approximating the compensating and equivalent variations with consumer s surplus these bounds can be explicitly calculated from observable demand data and it is clear that in most applications the error of approximation will be very small in fact the error will often be overshadowed by the errors involved in estimating the demand curve the results in no way depend upon arguments about the constancy of the marginal utility of income consequently this paper supplies specific empirical criteria which can replace the apologetic caveats frequently employed by those who presently apply consumer s surplus moreover the results imply that consumer s surplus is usually a very good approximation to the appropriate welfare measures to preview below i establish the validity of these rules of thumb for a

the r d performance through time of young high technology firms methodology and an illustration abstract this paper summarizes the pilot stage of a microeconomic study of the innovation performance through time of young high technology israeli firms it reports some results for a successful firm designing producing and selling electronic instruments and systems the paper begins by surveying some of the difficulties surrounding the collection and organization of data on r d projects one of them concerns the definition of the unit for analysis the r d project three criteria are suggested for dividing the stream for innovative activities into r d projects and these are applied to group the tens of products accessories and systems included in the analysis into nine projects the paper subsequently defines a measure of direct project performance or profitability estimate discounted operating profits per unit of fixed costs and provides estimates based on r d and sales data for the products of each project the final sections analyze the variation of project profitability through time the increasing profitability observed across generations of a product class is attributed to the adaptability of the firm to changes in the environment particularly to the availability of new technology which requires the swift design and sale of more complex products the qualitative history of the various projects suggests that this adaptability is due to a large extent to the skills infrastructure and reputation of the firm accumulated from prior projects i e that the indirect profitability of the latter is high some estimates of the indirect profitability of early projects are presented a comparison of the spin off mechanisms observed in the firm analyzed with those observed in firms of other industries is also undertaken

internationalization of corporate technology through strategic partnering an empirical investigation this paper explores some trends in the internationalization of corporate r d efforts innovation output and strategic technology partnering in the past decade inter firm strategic technology partnering through which companies share their innovation efforts supplements the standard indicators of technological competence to broaden the scope from internal innovation processes to a wider range of innovative activities the international information technology industry is singled out for empirical study the main conclusion of this contribution is that even in a global industry such as information technology internationalization of innovation although by no means insignificant appears less important than expected

the diversity of r d consortia and firm behavior evidence from japanese data an empirical analysis of japanese government sponsored r d consortia involving 213 firms over 13 years shows that the diversity of a consortium is associated with greater r d expenditure by participating firms diversity is alternatively measured by the montgomery 1982 index based on 3 digit sic codes and branstetter and sakakibara s 1998 modification of the jaffe 1986 patent portfolio based index

who co operates for innovation and why an empirical analysis abstract in recent years there has been growing interest in co operative arrangements for innovation with some commentators arguing innovation is no longer the province of individual firms but depends increasingly on collective action this paper examines the response to the uk s version of the second european community innovation survey cis 2 to investigate the patterns of co operation between innovating firms and external partners the analysis shows the relationship between innovation and co operation is not straightforward from a subjective i e firm based perspective it is clear that most firms still develop their new products processes and services without forming formal co operative arrangements for innovation with other organisations however firms that engage in r d and that are attempting to introduce higher level innovations i e new to the market rather than new to the firm innovations are much more likely to engage in co operative arrangements for innovation consequently if an objective i e innovation based perspective is taken which weighs innovations by their significance then it is likely that a significant proportion of high level innovations are developed through co operative arrangements although unfortunately the cis 2 does not indicate the direct significance of these arrangements to the development of the innovations in summary the extent of co operative arrangements for innovation appears to depend on the type of firms being considered and on what is meant by innovation

offshoring of r d looking abroad to improve innovation performance the offshoring of knowledge services has become a phenomenon of increasing importance for firms but many of its implications are yet to be discussed thoroughly this paper analyzes whether r d offshoring contributes to enhancing firms innovation capabilities specifically the study distinguishes between two governance models of offshoring captive offshoring and offshore outsourcing and two types of innovation outcomes product and process innovations we suggest that r d offshoring has different impacts depending on the innovation results and governance models considered the study empirically tests these relationships using the spanish technological innovation panel this survey contains information on a large sample of firms from diverse sectors for the period 2004 2007 the empirical findings allow us confirm our hypotheses and highlight the strategic importance of r d offshoring the empirical evidence reveals a positive relation between offshoring and innovation performance with a greater effect on product than on process innovations the results for different governance models show that captive offshoring has a greater effect on innovation outcomes than offshore outsourcing these findings lead us to conclude that firms that look overseas can benefit from location specific and specialization advantages to improve innovation performance

small firms social capital and the enhancement of business performance through innovation programmes the paper explores the extent to which social capital is advantageous to small and medium enterprise sme growth social capital is a communal property involving civic engagement associational membership high trust reliability and reciprocity in social networks it is capable of being identified in social political and economic contexts often associated with strong communities however not all strong communities exert the effects of social capital in respect of business activities this paper assesses government programmes to promote collaboration amongst smes for improving innovation capacity by increasing social capital through networking it shows that for a sizeable proportion of programme funded firms in denmark ireland and wales u k social capital building was associated with enhanced business knowledge and innovation performance of particular importance was the opportunity afforded to firms for linkage with external innovation networks and the build up of embeddedness or the institutional basis for the enhancement of social capital as a consequence of discovering the advantages of social capital over a third of respondents planned to continue to develop it in future in many cases funding such activities privately rather than calling on the public purse

co operative r d why and with whom an integrated framework of analysis abstract firms use r d partnerships to access knowledge and build global r d networks this article develops an integrated framework to examine the determinants of the choice of partners with which firms co operate on r d this resource based perspective underscores the interactions between three major questions why co operate who does and with whom it argues in particular that the choice of partners is dictated by the complementary resources which the latter command the framework is then expanded to predict the relative efficiency of r d co operation with different partners including suppliers clients rivals academic institutions and foreign firms the empirical analysis which is based on responses to france s version of the second european community innovation survey cis 2 strongly supports the overall framework of analysis

firms motivations for cooperative r d an empirical analysis of spanish firms abstract the aim of this paper is to analyze the motives that have caused industrial firms to cooperate in r d there are many theoretical works devoted to the theme but few empirical studies have been carried out with large samples to analyze the factors which determine why firms cooperate in r d we first review the reasons offered by the literature to explain technological cooperation with this allowing us to determine the conceptual framework and to propose some hypotheses we test these hypotheses with a sample of 1652 spanish firms that have carried out r d activities the results obtained suggest that firms motivations for cooperative r d are the complexity of technology and the fact that innovation is costly and uncertain we find that in order to undertake cooperative r d it is necessary to have certain internal capacities in this area with our results being supported by the theory of absorptive capacity however and by contrast with the results presented in other works questions related to market access and search for opportunities do not appear to exert an influence over cooperative r d besides the large sized firms resort more to cooperation and the reasons for cooperative r d differ as between large and small sized firms

the sensitivity of productivity growth measures to alternative structural and behavioral assumptions an application to electric utilities 1951 1984 this article examines the sensitivity of three alternative multifactor productivity growth estimates for the electric utility industry during the 1951 1984 period the results indicate that multifactor productivity growth estimates are quite sensitive to the relaxation of various structural and behavioral assumptions first a benchmark measure is constructed along the lines suggested by solow 1957 this residual approach produces estimates that suggest a substantial decline in firm level productivity growth after the mid 1960s prior to obtaining the second and third estimates empirical tests of the structural and behavioral assumptions underlying a firm s operation are conducted first the structural assumption of constant returns to scale is rejected and the resulting long run scale adjusted multifactor productivity growth estimates are found to be consistently less than the residual estimates second the behavioral assumption of long run equilibrium is rejected comparing the long run scale ad

on the diffusion of new technology a game theoretic approach this paper is an attempt at a rigorous albeit not exceedingly general analysis of the diffusion of new technology in particular consider an industry composed of two firms each using the current best practice technology the firms are assumed to be operating at nash equilibrium output levels generating a market price given demand and profit allocations when a cost reducing innovation is announced each firm must determine when if ever to adopt it based in part upon the discounted cost of implementing the new technology and in part upon the behavior of the rival firm if either firm adopts before the other it can expect to make substantial profits at the expense of the other firm on the other hand the discounted sum of purchase price and adjustment costs may decline with the lengthening of the adjustment period as various quasi fixed factors become more easily variable therefore although waiting costs the firm more in terms of foregone profits it may save money on the cost of purchasing the new technology thus the firm must weigh the costs and benefits of delaying adoption as well as take account of its rival s strategic behavior

energy subsidies structure of electricity prices and technological change of energy use abstract this paper addresses the impact of the structure of energy prices on technological change in renewable energy sources it operates on two fields of research that are often not related to each other firstly the increasing interest in environmental economics for the determinants of green technological change and secondly the impact of government policies aimed at subsidizing energy prices recent research claims a positive relationship between energy prices and the number of patents in the fields of energy efficiency this paper extends this research by investigating the impact of the price structure of electricity on patent counts in 1 renewable energy sources 2 wind energy and 3 solar power in nearly all oecd countries in the period 1990 2006 industrial energy users pay a lower price per energy unit than households due among others to government subsidy policies the empirical results show that reducing government subsidies and hence increasing the electricity price of large industrial electricity users relative to the price paid by small residential users provides a clear incentive to increase inventions as measured by number of patents in the technical fields of solar and wind energy these results are an important input in the debate on reducing government support to large energy users

economic history and the modern economist in this book nine economists and economic historians express their concern for the present state of economics and its development in the future from a variety of different approaches these scholars reassert the importance of economic history in the training of economists and urge that this perspective should not be lost in the future

the approach of institutional economics this paper assesses the old institutional economics it emphasizes the importance of key old institutionalist themes concerning the necessity of habits and rules and the role of institutions a problem in the alternative theoretical program of the new institutionalism is the untenability of its assumption of an original institution free market or state of nature even optimizing behavior requires the prior existence of habits and rules although it still lacks a complete and systematic theory the evolutionary approach of the old institutionalists tackles the problem of the interactive relationship of actor to structure without analytical reduction to one or the other

what drives the choice of the type of partner in r d cooperation evidence for spanish manufactures and services abstractwe analyse the heterogeneity in firms decisions to engage in r d cooperation taking into account the type of partner competitors suppliers or customers and research institutions and the sector to which the firm belongs manufactures or services we use information from the technological innovation panel pitec for spanish firms and estimate multivariate probit models corrected for endogeneity which explicitly consider the interrelations between the different r d cooperation strategies we find that placing a higher importance to publicly available information incoming spillovers receiving public funding and firm size increase the probability of cooperation with all kind of partners but the role is much stronger in the case of cooperative agreements with research institutions and universities our results also suggest that r d intensity and the importance attributed to the lack of qualified personnel as a factor hampering innovation are key factors influencing positively r d cooperation

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

what is new keynesian economics this research was supported by the national science foundation i am grateful to george williams for help with the data and to steven allen laurence ball olivier j blanchard timothy bresnahan charles calomiris dennis carlton robert chirinko russell cooper stanley fischer herschel grossman r glenn hubbard david laidler john leahy assar lindbeck n gregory mankiw david romer julio rotemberg dennis snower john taylor andrew weiss and two anonymous referees for comments on one or more earlier drafts i am also indebted to michael parkin and edmund s phelps for helping to establish the etymology of the phrase new keynesian

internal r d expenditures and external technology sourcing abstract the paper examines the two way relationship between external r d activities and internal r d expenditures on a cross section of flemish r d active companies the analysis extends the classical explanatory variables like size diversification ownership structure and technological opportunities to include the impact of various external sourcing strategies r d cooperation and to a lesser extent r d contracted out are found to have a significant positive effect on internal r d but only if the companies have absorptive capacity in the form of a full time staffed r d department at the same time firms are found to be more frequently engaged in r d cooperation the more they spend on internal r d

the measurement and sources of technical inefficiency in the indonesian weaving industry production function models are estimated with a time series of cross section data on indonesian weaving establishments the sources of technical inefficiency are investigated three firm attributes are identified as being potentially related to firm efhciency tbey are firm ownership age and size the importance of these attributes as sources of inefficiency in the indonesian weaving industry is investigated and the implications of the find ings discussed

a non parametric analysis of productivity the case of u s and japanese manufacturing a nonparametric analysis of technology technical change and productivity is presented in the context of cost minimizing behavior a number of nonparametric tests concerning the existence and nature of technical change are applied to u s and japanese manufacturing data nonparametric measures of technical change are presented copyright 1990 by american economic association

the role of diversification profiles and dyadic characteristics in the formation of technological alliances differences between exploitation and exploration in a low tech industry this paper posits that corporate and technological diversification of firms and their relatedness in terms of products and technologies will impact their propensity to form technological alliances it argues that both higher levels of diversification and greater relatedness signal superior capabilities and available resources to prospective partners that will facilitate exploration and exploitation of technological assets in an alliance these theoretical conjectures are tested using a dataset of all tire producers worldwide between 1985 and 1996 that combines detailed firm data on establishment patenting and alliance activities the results indicate that complementarity in terms of corporate and technological diversification strategies as well as partner characteristics e g size age and technological capabilities drive exploitation alliances moreover firms with similar product portfolios are more likely to engage in exploitative interactions in contrast exploration alliances exhibit strong partner similarity across all firm characteristics both corporate and technological diversification have positive effects on firms propensity to engage in exploration while technological distance has a negative nonlinear one

the maturity structure of corporate debt we provide an empirical examination of the determinants of corporate debt maturity our evidence offers strong support for the contracting cost hypothesis firms that have few growth options are large or are regulated have more long term debt in their capital structure we find little evidence that firms use the maturity structure of their debt to signal information to the market the evidence is consistent however with the hypothesis that firms with larger information asymmetries issue more short term debt we find no evidence that taxes affect debt maturity

towards an economic theory of the multiproduct firm this paper outlines a theory of the multiproduct firm important building blocks include excess capacity and its creation market imperfections and the peculiarities of organizational knowledge including its fungible and taut character a framework is adopted in which profit seeking firms are seen to diversify in order to avoid the high transactions costs associated with using various markets to trade the services of various specialized assets neoclassical explanations of the multiproduct firm are shown to be seriously deficient

random walks and sustained competitive advantage strategy is concerned with sustained interfirm profitability differences observations of such sustained differences are often attributed to unobserved systematic a priori differences in firm characteristics this paper shows that sustained interfirm profitability differences may be very likely even if there are no a priori differences among firms as a result of the phenomenon of long leads in random walks even a random resource accumulation process is likely to produce persistent resource heterogeneity and sustained interfirm profitability differences a cournot model in which costs follow a random walk shows that such a process could produce evidence of substantial persistence of profitability the results suggest that persistent profitability does not necessarily provide strong evidence for systematic a priori differences among firms nevertheless since the phenomenon of long leads is highly unrepresentative of intuitive notions of random sequences such evidence may still be persuasive

death of the lethargic effects of expansion into new technical subfields on performance in a firm s base business this paper finds that industry incumbents that do not expand into new technical subfields tend to fare poorly in their established businesses even if the market for the established products continues to exist firms that expand from their established businesses survive longer and achieve greater subsequent market share than competitors that do not expand by some measures however a failed attempt to expand into a new subfield may be even more harmful to a base business than nonexpansion the study employs conventional and accelerated event time regression models to analyze market share and survival the sample which includes 371 incumbents in four base subfields of the medical diagnostic imaging industry between 1953 and 1989 examines performance following the emergence of five new technical subfields of the industry