the birth of a new industry entry by start ups and the drivers of firm growth the case of encryption software the paper analyses the birth of the encryption software industry esi a new niche in the software industry using a chandlerian perspective this work reports the main facts about fir entry and growth with a particular focus on start up strategies and actions since scale economies do not play a major role in esi the paper investigates the different sources of fir competitive advantages this work shows that innovation and product differentiation along with investments in co specialised assets are variables strongly correlated to young fir probability to survive and grow in doing so we have collected highly detailed information on product introduction us patents granted worldwide alliances and biographical data of fir founders 2004 elsevier b v all rights reserved jel classificatio m13 l86 o32

knowledge spillovers and patent citations evidence from a survey of inventors it is well understood that the non rival nature of knowledge as a productive asset creates the possibility of knowledge spillovers whereby investments in knowledge creation by one party produce external benefits by facilitating innovation by other parties at least since zvi griliches s 1979 seminal paper on measuring the contributions of r d to economic growth economists have been attempting to quantify the extent and impact of knowledge spillovers one line of research of this type has utilized patent citations to identify a paper trail that may be associated with knowledge flows between firms very little of this research has attempted to determine the modes or mechanisms of communication that actually permit knowledge to flow further most of the work has simply assumed that citations or other proxies are sufficiently correlated with knowledge flows to allow statistical analysis of the proxies to be informative regarding the underlying phenomenon of interest this paper reports on a preliminary attempt to improve this situation the idea for this survey came from r d managers whom we were interviewing to test whether the picture of knowledge flows produced by patent citations was consistent with the managers impressions one of these managers commented that he could not let us talk to the scientists who worked for him but that he could not stop uls from contacting them via the postal address that appears on their issued patents the survey results suggest that communication between inventors is reasonably irnportant and that patent citations do provide an indication of communication albeit one that also carries a fair amount of noise

general technological capabilities product market fragmentation and markets for technology abstract the combination of a firm capability i e ability to generate general purpose technologies and a market structure condition i e fragmentation of downstream submarkets may encourage licensing in an industry that is the probability of licensing should increase when product markets are fragmented and technologies support general purposes evidence consistent with these predictions emerges from a 1993 to 2001 panel of 87 firms that owned at least one u s software security patent between 1976 and 2001 the analysis uncovers some fundamental characteristics of how external knowledge exploitation functions in particular technology markets thrive when product markets are fragmented and firms have the capability to produce general technologies

minimum unit prices for alcohol minimum unit prices mups have been proposed on the grounds that they can reduce alcohol consumption of the heaviest drinkers without significantly burdening moderate drinkers this paper examines the case for mups in an optimal tax framework such a policy can improve welfare when two conditions are both satisfied first beverage quality and quantity should be substitutes second there should be more distortion to consumption of cheaper alcohol than to more expensive varieties the consequences of a mup for the optimal corrective tax are explored with a calibrated numerical example this example illustrates how the optimal tax rate might be higher when used in isolation than when a mup is also being used

reap what you sow agricultural technology urbanization and structural change abstract this paper studies how productivity enhancing agricultural technology affects urbanization by provoking structural change we investigate these issues using a natural experiment in the united states the results show that technologies which improve crop productivity lead to a less urbanized economy as economic activity relocates from manufacturing and services towards agriculture the effects are highly persistent and are driven by the technology increasing agricultural labor demand our findings highlight the potentially unintended disruptive force of innovative technologies

technology as a complex adaptive system evidence from patent data this paper develops a theory of invention by drawing on complex adaptive systems theory we see invention as a process of recombinant search over technology landscapes this framing suggests that inventors might face a complexity catastrophe when they attempt to combine highly interdependent technologies our empirical analysis of patent citation rates supports this expectation our results also suggest however that the process of invention differs in important ways from biological evolution we discuss the implications of these findings for research on technological evolution industrial change and technology strategy 2001 elsevier science b v all rights reserved

endogeneity in brand choice models applications of random utility models to scanner data have been widely presented in marketing for the last 20 years one particular problem with these applications is that they have ignored possible correlations between the independent variables in the deterministic component of utility price promotion etc and the stochastic component or error term in fact marketing mix variables such as price not only affect brand purchasing probabilities but are themselves endogenously set by marketing managers this work tests whether these endogeneity problems are important enough to warrant consideration when estimating random utility models with scanner panel data our results show that not accounting for endogeneity may result in a substantial bias in the parameter estimates

legitimizing research technology and innovation policies for transformative change combining insights from innovation systems and multi level perspective in a comprehensive failures framework abstract the recent policy debates about orientating research technology and innovation policy towards societal challenges rather than economic growth objectives only call for new lines of argumentation to systematically legitimize policy interventions while the multi level perspective on long term transitions has attracted quite some interest over the past years as a framework for dealing with long term processes of transformative change but the innovation systems approach is still the dominant perspective for devising innovation policy innovation systems approaches stress the importance of improving innovation capabilities of firms and the institutional settings to support them but they are less suited for dealing with the strategic challenges of transforming systems of innovation production and consumption and thus with long term challenges such as climate change or resource depletion it is therefore suggested to consider insights from transition studies more prominently in a policy framework that is based on the innovation systems approach and the associated notion of failures we propose a comprehensive framework that allows legitimizing and devising policies for transformative change that draws on a combination of market failures structural system failures and transformational system failures

the changing technology of technological change general and abstract knowledge and the division of innovative labour abstract in the past most innovations have resulted from empiricist procedures the outcome of each trial yielding knowledge that could not be readily extended to other contexts while trial and error may remain the primary engine of innovation developments in many scientific disciplines along with progress in computational capabilities and instrumentation are encouraging a new approach to industrial research instead of relying purely on trial and error the attempt is also to understand the principles governing the behaviour of objects and structures the result is that relevant information whatever its source can now be cast in frameworks and categories that are more universal the greater universality makes it possible for the innovation process to be organised in new ways firms can specialise and focus upon producing new knowledge and the locus of innovation may be spread across both users and producers more generally the use of general and abstract knowledge in innovation opens up the possibility for a division of labour in inventive activity the division of innovative labour the implications for public policy especially that on intellectual property rights are discussed

explaining the attacker s advantage technological paradigms organizational dynamics and the value network abstract understanding when entrants might have an advantage over an industry s incumbent firms in developing and adopting new technologies is a question which several scholars have explained in terms of technological capabilities or organizational dynamics this paper proposes that the value network the context within which a firm competes and solves customers problems is an important factor affecting whether incumbent or entrant firms will most successfully innovate in a study of technology development in the disk drive industry the authors found that incumbents led the industry in developing and adopting new technologies of every sort identified by earlier scholars at component and architectural levels competency enhancing and competency destroying incremental and radical as long as the technology addressed customers needs within the value network in which the incumbents competed entrants led in developing and adopting technologies which addressed user needs in different emerging value networks it is in these innovations which disrupted established trajectories of technological progress in established markets that attackers proved to have an advantage the rate of improvement in product performance which technologists provide may exceed the rate of improvement demanded in established markets this mismatch between trajectories enables firms entering emerging value networks subsequently to attack the industry s established markets as well

alcohol availability prenatal conditions and long term economic outcomes this study examines how a policy that sharply increased alcohol availability during 8 5 months affected the labor productivity of those exposed to it in utero compared to the surrounding cohorts the prenatally exposed children have substantially worse labor market and educational outcomes and lower cognitive and noncognitive ability effects on earnings are found throughout the distribution but are largest below the median males are more affected than females consistent with growing evidence that boys are less resilient to early environmental insults the long term effects seem primarily driven by changes in prenatal health rather than changes in the childhood environment

successes and failures in the markets for technology market mediated contracts for technology trade are bound by several transaction costs this paper argues that as these transaction costs become less severe markets for technology can help improve three market failures i rd ii externalities in potentially public rd and iii deviations from marginal cost pricing in the downstream product markets in addition with larger markets of potential users the technology suppliers will have incentives to produce more general technologies which span a wider number of firms or industries markets for technology also produce new failures in particular they induce deviation from marginal cost pricing in the sale of the technology and they generate externalities associated with complementary r d and other investments made by the independent buyers and suppliers that operate in them the paper concludes by discussing policy implications

do deployment policies pick technologies by not picking applications a simulation of investment decisions in technologies with multiple applications abstract the role of deployment policies that aim to foster technological change has grown considerably especially in the fields of energy and climate however recent research has shown that the adoption of deployment policies carries the potential of locking in the technology that is most cost effective at the point of policy introduction but may be inefficient in the long term the present paper contributes to the emerging literature on the role of deployment policies in creating path dependency and eventually technology lock in while previous studies focused on the relationship between lock in and the technology specificity of deployment policies this paper introduces a new factor the existence of multiple applications for a technology we argue that this factor is highly relevant for technological lock in and should be considered by policy makers to support our argument we simulate the competition among four stationary battery technologies across energy system applications in an investment simulation model this simulation shows that the degree of competition among technologies differs strongly across applications which corresponds with a highly varying lock in probability hence selecting applications in deployment policies very likely corresponds to selecting technologies we discuss the implications of these results for both policy makers and for the academic debate on deployment policies and technological lock in as well as on technology assessment and governance more generally based on the notion that policies can have different technology specificity levels we develop the idea of the application specificity of policies and provide examples of currently enacted deployment policies that vary in terms of their technology and application specificity

the risk in hedge fund strategies theory and evidence from trend followers hedge fund strategies typically generate option like returns linear factor models using benchmark asset indices have difficulty explaining them following the suggestions in glosten and jagannathan 1994 this article shows how to model hedge fund returns by focusing on the popular trend following strategy we use lookback straddles to model trend following strategies and show that they can explain trend following funds returns better than standard asset indices though standard straddles lead to similar empirical results lookback straddles are theoretically closer to the concept of trend following our model should be useful in the design of performance benchmarks for trend following funds

local recycled water in sydney a policy and regulatory tug of war abstract local recycled water lrw can potentially contribute to resilient and sustainable urban water services critical to liveable cities investment in these systems has increased rapidly in australia in the past 10 years yet public and private investment in these systems can still be difficult complex costly and risky an in depth case study analysis of sydney revealed that while the local policy institutional and regulatory environment is on the surface conducive to the uptake of local recycled water actual practice has surprisingly mitigated against further and broader investment in these systems these instruments are often counteracted by multiple opposing levers that in some instances were developed for entirely different purposes the generalizable insight is that a systematic systemic detailed review of these instruments and levers can reveal unexpected contradictions and provide a strong and defensible base from which to develop strategies to address unintended consequences and remove barriers to future investment

the dynamics of agglomeration externalities along the life cycle of industries neffke f henning m boschma r lundquist k j and olander l o the dynamics of agglomeration externalities along the life cycle of industries regional studies this paper investigates the changing roles of agglomeration externalities along the industry life cycle it is argued that industries have different agglomeration needs in different stages of their life cycles because their mode of competition innovation intensity and learning opportunities change over time for twelve swedish manufacturing industries it is determined for each year between 1974 and 2004 whether the industry is in a young intermediate or mature stage whereas marshall arrow romer mar externalities steadily increase with the maturity of industries the effects of local diversity jacobs externalities are positive for young industries but decline and even become negative for more mature industries neffke f henning m boschma r lundquist k j et olander l o la dynamique des effets externes d agglomeration tout

endogenous unemployment insurance in a monopoly union model when job search matters abstract the aim of the paper is to derive an optimal unemployment insurance policy for a utilitarian trade union when job search matters it is shown that the well known result from the theory of insurance concerning the optimal risk sharing between risk averse agents changes essentially if the search behavior is allowed to affect the performance of the labor market we assume that labor market mismatch decreases with search effort which in turn decreases with the benefit the resulting equilibrium benefit is shown to be a decreasing function of the trade union s share of the costs of the insurance fund the model is also extended to the case where the benefit is made conditional on monitored search effort

the governance of sustainable socio technical transitions a quasi evolutionary model of socio technical transitions is described in which regimes face selection pressures continuously differentiated transition contexts determine the form and direction of regime change in response to these pressures the articulation of pressures and the degree to which responses are coordinated and based on resources available within the regime define the transition context four alternative contexts are described endogenous renewal re orientation of trajectories emergent transformation and purposive transitions agency and power in the governance of regime transformation are analysed power to affect change depends on regime membership the distribution of resources for change and expectations

life cycle prices and production we use scanner data and time diaries to document how households substitute time for money through shopping and home production we document substantial heterogeneity in prices paid for identical goods for the same area and time with older households shopping the most and paying the lowest prices doubling shopping frequency lowers a good s price by 7 to 10 percent we estimate the shopper s price of time and use this series to estimate an elasticity of substitution between time and goods in home production of roughly 1 8 the observed life cycle time allocation implies a consumption series that differs markedly from expenditures

incumbents diversification and cross sectorial energy industry dynamics abstract within the sustainability transitions literature established mature or incumbent firms have been stereotyped as locked in to socio technical regimes however we believe regimes have been black boxed and few studies have explored incumbents responses to transition processes this article aims to achieve an improved understanding of incumbents in established energy sectors and their extent of involvement in other niche energy sectors to this avail we analyze data from a first of its kind survey of 133 incumbent firms in norway s two main energy sectors namely oil gas and hydropower providing inter temporal dimensions our data covers incumbents diversification activities beyond their primary sector both in the past cancelled activities present ongoing activity in secondary sectors and future ambitions of diversification and also distinguishes between producers and product service suppliers by incorporating insights on firm diversification our analysis sheds new light on the complex transformation processes associated with sustainability transitions empirical results show considerable heterogeneity in incumbents responses to changing selection pressures which can be explained by recognition that windows of opportunity are opening and some incumbents see potential to leverage their resources and capabilities to capture value in new niche energy sectors in both domestic and international markets

industrial governance structures innovation strategies and the case of japan sectoral or cross national comparative analysis in comparative research on industrial policy strategies attention has shifted from national level variables to sectoral variables in both the description and the explanation of policy the sectoral literature however lacks analytic focus and has provided little systematic insight into the causes of cross sectoral variance in governance structures and policy strategies based on recent contributions to the economics and sociology of formal organizations this article attempts to sharpen the concept of industrial sector and to provide a rationale for why sectoral structures and strategies vary next it develops a synthetic explanatory framework that combines sectoral analysis and national domestic structuralism in order to account for industrial innovation strategies in advanced capitalist countries in the final section the fruitfulness of this approach is illustrated by developing a new account of japan s success and failure in industrial innovation an account that overcomes the contradictions among the main alternatives offered in the past the key objective of the article however is to develop a new set of theoretical hypotheses for cross national research not a rigorous empirical test of its main propositions

a failure inducement model of research and development expenditure abstract empirical evidence for the schumpeterian suggestion of a positive relationship between profitability and innovative effort is slim in fact the opposite is often suggested an alternative failure inducement hypothesis argues that firms make innovative efforts when performance falls below a minimum threshold resulting in a negative relationship between profitability and r d expenditures data on r d expenditures in italian industry in the early 1980s a period of severe economic crisis show that both hypotheses are relevant for firms whose profits are well above or well below average respectively

a knowledge based theory of the firm the problem solving perspective in this paper we develop a knowledge based theory of the firm while existing knowledge based theory focuses on the efficiency of hierarchy in economizing on knowledge exchange we develop a theory of the firm that focuses on the efficiency of alternative organizational forms ingenerating knowledge or capability our theory begins with the problem as the basic unit of analysis arguing that a problem s complexity influences the optimal method of solution search and the optimal means of organizing that search the distinguishing feature that differentiates among organizational alternatives is the different way each resolves conflict over the selection of solution trials that is the way it chooses the path of search our theory predicts that efficiency demands that these governance alternatives be matched in a discriminating way to problems based on their associated benefits and costs in governing solution search thus our theory is among the first to simultaneously treat both the boundary choice i e internal versus external and the choice among alternative internal approaches to organizing

the moderating role of submarket dynamics on the product customization firm survival relationship in this paper we examine how the provision of product customization services affects firm survival integrating literatures on industry evolution product related adapting services and entry deterrence we hypothesize that the relationship between product customization the costly modification of a product to cater to customer needs and firm survival differs across industries based on the extent of submarkets we argue that in industries that feature submarkets more prominently the positive association between product customization and firm survival is stronger for two conceptually distinct and empirically distinguishable mechanisms customizing firms enter new submarkets and also deter potential entry we conclude that offering product customization services has strategic benefits that sometimes outweigh the cost of coordinating with customers

forecasts of the managed futures market an empirical analysis abstractalternative investments including managed futures are primarily intended for institutional investors and for very wealthy individual investors it therefore seems logical to assume that the increase of wealth on a global scale can be a factor impacting the value of transactions in individual segments of the alternative investment market the purpose of this article is to indicate the factors affecting growth of managed futures transactions another research goal is to answer the question does the increase of wealth on a global scale affect the value of the managed futures transactions the article will also present short term forecasts of the transactions on the managed futures market for the years 2015 2017 the forecasts which will be constructed are meant to present possible scenarios of the market s further development evolution of the alternative investment segment leads to development of those categories which fulfil the expectations of market participants and meet the requirement and

heterogeneity in the tax pass through to spirit retail prices evidence from belgium abstract on 1st november 2015 the belgian government increased the excise tax on alcoholic beverages for spirits with 40 of alcohol and bottle size of 70 cl this tax change is equivalent to an amount of 2 43 per bottle of spirits this paper studies the impact of this tax reform at the store level on the posted retail price of six major brands of spirits using a difference in differences method the estimation is based on a balanced panel of scanner data from a major supermarket chain with a 33 market share and uses the retail prices of the same brands sold in france by the same supermarket chain as a control group having information on each store location we show spatial variations in the tax pass through for homogeneous products we find that these variations are strongly related to the intensity of local competition and to a lesser extent to the proximity to the borders mainly with luxembourg which is the low price country we find that the tax was quickly passed through during the first month of tax implementation and that it was mostly over shifted however we also find that both the border and the competition effects are not instantaneous but arise several months after the tax reform these findings have important implications for alcohol control policies as they highlight that the incidence of alcohol taxation can vary greatly across space and affect differently households depending on where they live

the welfare effects of environmental taxation recent literature has investigated whether the welfare gains from environmental taxation are larger or smaller in a second best setting than in a first best setting this question has mainly been addressed indirectly by asking whether the second best optimal environmental tax is higher or lower than the first best pigouvian rate even this indirect question has itself been approached indirectly comparing the second best optimal environmental tax to a proxy for its first best value marginal social damage msd on closer examination however msd becomes ambiguously defined and variable in a second best setting making it an unreliable proxy for the pigouvian rate given these observations the current analysis reevaluates these welfare questions and finds that when compared directly to its first best value the second best optimal environmental tax generally rises with increased revenue requirements even in cases where the second best environmental tax is lower than its first best value the welfare gains may be greater than in a first best setting these results suggest that the marginal fiscal benefit revenue recycling effect exceeds the marginal fiscal cost tax base effect over a range of environmental tax rates that for benchmark models extends above the first best pigouvian rate these findings reinforce the intuition that environmental policy complements rather than competes with the provision of other public goods

the dynamo and the computer an historical perspective on the modern productivity paradox the dynamo and the computer an historical perspective on the modern productivity paradox author s paul a david source the american economic review vol 80 no 2 papers and proceedings of the hundred and second annual meeting of the american economic association may 1990 pp 355 361 published by american economic association stable url http www jstor org stable 2006600 accessed 08 12 2010 01 40

on the sources and significance of interindustry differences in technological opportunities abstract the set of technological opportunities in a given industry is one of the fundamental determinants of technical advance in that line of business we examine the concept of technological opportunity and discuss three categories of sources of those opportunities advances in scientific understanding and technique technological advances originating in other industries and in other private and governmental institutions and feedbacks from an industry s own technological advances data from the yale survey on industrial research and development are used to measure the strength of various sources of technological opportunity and to discern interindustry differences in the importance of these sources we find that interindustry differences in the strength and sources of technological opportunities contribute importantly to explanations of cross industry variation in r d intensity and technological advance

one for the road public transportation alcohol consumption and intoxicated driving we exploit arguably exogenous train schedule changes in washington dc to investigate the relationship between public transportation the risky decision to consume alcohol and the criminal decision to engage in alcohol impaired driving using variation over time across days of the week and over the course of the day we provide evidence that overall there was little effect of expanded public transit service on dui arrests alcohol related fatal traffic and alcohol related arrests however we find that these overall effects mask considerable heterogeneity across geographic areas specifically we find that areas where bars are within walking distance to transit stations experience increases in alcohol related arrests and decreases in dui arrests we observe no sign of behavioral changes in neighborhoods without any bars within walking distance of transit stations

can alcohol prohibition reduce violence against women violence against women is a critical problem across the world in this paper we exploit state and temporal variation in alcohol control in india to examine the impact of prohibition on alcohol consumption and violent crimes against women we first use detailed household survey data to show that prohibition policies are associated with substantially lower rates of drinking among men and domestic violence next we provide evidence that alcohol prohibition reduces aggregate violence against women in officially reported crime data the results suggest that policies that restrict access to alcohol may help reduce gender violence

smart grids and the transformation of the electricity sector ict firms as potential catalysts for sectoral change abstract the sustainability challenges associated with increasing demand and generation of electricity require a far reaching transformation of the energy system smart grid technologies are expected to play a major role in such sectoral transformation while a growing body of literature is concerned with the dynamics and particularities of sectoral transformation most contributions have focused on exogenous shocks or new technological developments as drivers of change this paper complements the existing perspectives by exploring the role of actors as catalysts for transformation within the field of smart grid we study the transformative influence of ict firms on the energy sector in europe more specifically we analyze actor participation in 450 european smart grid projects between 2000 and 2011 as well as acquisitions in the field we find that incumbent firms from the ict sector have gained influence and drive transformation through the creation of variety in terms of technology business models and value chains as a strategic reaction electricity sector incumbents have recently acquired many start ups specialized in ict technology and thus expanded their competence base we conclude that entrants from another sector can be important catalysts for sectoral transformation and should be analyzed more systematically in transition studies

interdependences in the intrafirm diffusion of technological innovations confronting the rational and social accounts of diffusion this article investigates the intrafirm diffusion of technological innovations and the interdependences that exist among rival firms in this process previous research has offered two potential explanations for these interdependences social accounts in which they result from institutional pressures and rational accounts in which firms are interdependent as a result of how adoption by rivals affects expectations about the profitability of the technology the article offers two contributions first we propose a competitive interaction mechanism that is consistent with the fundamentals of rational accounts of diffusion second the empirical analysis shows the dominance of the proposed rational mechanism over social accounts of innovation diffusion in the generation of interdependences in the process of intrafirm diffusion

between preferences and references asymmetric price elasticities and the simulation of fiscal policies abstract canonical demand studies and fiscal policy simulations rest on the assumption that consumers react symmetrically to price increases and decreases such assumption has been challenged from both the empirical and theoretical points of view we propose theoretically consistent empirical specifications to estimate discrete choice models random utility dcm and continuous demand systems easi and aids demand systems that allow for reference prices and asymmetric own and cross price demand response our application focuses on the demand for sugar sweetened beverages in great britain using transaction level household purchase data and different product aggregation levels we find substantial evidence of asymmetric consumer response and loss aversion with a stronger response when prices rise above their reference level our results hold for both dcms on highly differentiated products and demand systems on aggregate product categories and are robust to alternative model and reference price specifications simulations of taxes and subsidies on soft drinks shows that ignoring asymmetry may lead to biases especially when predicting price cuts

customer power strategic investment and the failure of leading firms why might firms be regarded as astutely managed at one point yet subsequently lose their positions of industry leadership when faced with technological change we present a model grounded in a study of the world disk drive industry that charts the process through which the demands of a firm s customers shape the allocation of resources in technological innovation a model that links theories of resource dependence and resource allocation we show that established firms led the industry in developing technologies of every sort even radical ones whenever the technologies addressed existing customers needs the same firms failed to develop simpler technologies that initially were only useful in emerging markets because impetus coalesces behind and resources are allocated to programs targeting powerful customers projects targeted at technologies for which no customers yet exist languish for lack of impetus and resources because the rate of technical progress can exceed the performance demanded in a market technologies which initially can only be used in emerging markets later can invade mainstream ones carrying entrant firms to victory over established companies

technological innovations and sectoral change transformative capacity adaptability patterns of change an analytical framework following up on recent debates about sectoral systems of innovation and production the paper introduces a heuristic framework for analyzing and explaining distinct patterns of technology based sectoral change the concept is based on two interrelated influencing factors the first is the sectoralspecific transformative capacity of new technologies themselves that is their substantial or incremental impact on socioeconomic and institutional change in a given sectoral system the second is the sectoral adaptability of socioeconomic structures institutions and actors confronted with the opportunities presented by new technologies the first factor the sectoral transformative capacity of new technologies enables us to identify the technology based pressure to change and adjust the structural institutional and organizational architectures of the sectoral system the second complementary factor sectoral adaptability helps us to discern the distinct social patterns of anticipating and adopting this technology based pressure the specific interplay between the two influencing factors creates distinguishable modes of sectoral transformation ranging from anticipative and smooth adjustments to reactive and crisis ridden patterns of change even processes of radical sectoral change continue over longer periods of mismatch and are characterized by numerous and mostly gradual organizational structural and institutional transformations

tax design in the alcohol market abstract alcohol consumption generates negative externalities that are non linear in the total amount of alcohol consumed if tastes for products are heterogeneous and correlated with marginal externalities then varying tax rates on different products can lead to welfare gains we study this problem in an optimal tax framework and empirically for the uk market we find that heavy drinkers have systematically different patterns of alcohol demands and welfare gains from optimally varying rates are higher the more concentrated externalities are among heavy drinkers

public monopoly and economic efficiency evidence from the pennsylvania liquor control board s entry decisions we estimate a spatial model of liquor demand to analyze the impact of government controlled retailing on entry patterns in the absence of the pennsylvania liquor control board the state would have roughly 2 5 times the current number of stores higher consumer surplus and lower payments to liquor store employees with just over half the number of stores that would maximize welfare the government system is instead best rationalized as profit maximization with profit sharing government operation mitigates but does not eliminate free entry s bias against rural consumers we find only limited evidence of political influence on entry jel d42 d72 l11 l12 l43 l81

do prices and attributes explain international differences in food purchases food purchases differ substantially across countries we use detailed household level data from the united states france and the united kingdom to i document these differences ii estimate a demand system for food and nutrients and iii simulate counterfactual choices if households faced prices and nutritional characteristics from other countries we find that differences in prices and characteristics are important and can explain some difference e g united states france difference in caloric intake but generally cannot explain many of the compositional patterns by themselves instead it seems an interaction between the economic environment and differences in preferences is needed to explain cross country differences jel d12 i12 l11 l66 q11 food purchases differ across countries within countries over time and across demographic groups these differences seem to be correlated with rates of excess weight gain and diet related illness economists tend to attribute the difference in food purchases across markets to differences in prices an alternative explanation is that they are due to inherent differences in preferences and eating habits in this article we study the differences in food purchases and nutritional outcomes across countries focusing on the united states united kingdom and france we start by systematically documenting the differences in food purchases for consumption at home between the united states united kingdom and france we show that us households purchase different foods from french and uk households for example us households purchase more calories per person a greater percentage of those calories comes in the form of carbohydrates and a lower share in the form of proteins a higher share of expenditure is on drinks and prepared foods and

technological revolutions and techno economic paradigms this paper locates the notion of technological revolutions in the neo schumpeterian effort to understand innovation and to identify the regularities continuities and discontinuities in the process of innovation it looks at the micro and meso foundations of the patterns observed in the evolution of technical change and at the interrelations with the context that shape the rhythm and direction of innovation on this basis it defines technological revolutions examines their structure and the role that they play in rejuvenating the whole economy through the application of the accompanying techno economic paradigm this over arching meta paradigm or shared best practice common sense is in turn defined and analysed in its components and its impact including its influence on institutional and social change

diffusion of general purpose technologies understanding patterns in the electrification of us manufacturing 1880 1930 i examine the diffusion of the electric motor between 1880 and 1930 i find that long lag times are determined by the degree of technical difficulty in application after solutions became available electrification generally proceeded rapidly to make this claim i explore three industries urban transit printing and paper making i identify points at which viable electric solutions to particular problems were found and examine adoption patterns both before and after these events the explanation contrasts with common demand side explanations such as costly user adaptation or information diffusion and imposes conditions on the application of standard supply side models the results are particularly important when examining the diffusion of broadly defined technological categories such as general purpose technologies in the history of diffusion of many innovations one cannot help being struck by two characteristics of the diffusion process its apparent overall slowness on the one hand and the wide variations in the rates of acceptance of different inventions on the other rosenberg 1972 191 copyright 2005 oxford university press

the patent paradox revisited an empirical study of patenting in the u s semiconductor industry 1979 1995 we examine the patenting behavior of firms in an industry characterized by rapid technological change and cumulative innovation recent survey evidence suggests that semiconductor firms do not rely heavily on patents to appropriate returns to r d yet the propensity of semiconductor firms to patent has risen dramatically since the mid1980s we explore this apparent paradox by conducting interviews with industry representatives and analyzing the patenting behavior of 95 u s semiconductor firms during 1979 1995 the results suggest that the 1980s strengthening of u s patent rights spawned patent portfolio races among capital intensive firms but it also facilitated entry by specialized design firms

origins and pathways of innovation in the third industrial revolution this study examines the factors that shaped the long term evolution of the ict industry in sweden 1950 2013 using a new historical microdatabase on actual innovation output the driving forces and technological interdependencies in the third industrial revolution are chronicled the results of this study support some stylized facts about technological interdependencies in general purpose technologies a closely knitted set of industries have provided positive and negative driving forces for the development of ict innovations the historical evolution of gpts can in this perspective be described as a sequence of development blocks

does the new economy measure up to the great inventions of the past abstract during the four years 1995 99 u s productivity growth experienced a strong revival and achieved growth rates exceeding that of the golden age of 1913 72 accordingly many observers have declared the new economy to be an industrial revolution even more important than the second industrial revolution of 1860 1900 which made the golden age of productivity growth possible this paper dissects the recent productivity revival subtracts out a cyclical component and concludes that there is no revival of the productivity growth trend in the 88 percent of the private economy lying outside of the durables manufacturing sector the paper explains this surprising finding by pointing to limitations in computers and the internet in comparison with the great inventions of the past

theorizing path dependence a review of positive feedback mechanisms in technology markets regional clusters and organizations the concept of path dependence has often been criticized as vague and only narrowly applicable although we can find some very refined definitions of the concept we also find a wide range of empirical phenomena being described as path dependent we argue that more detailed accounts of the positive feedback mechanisms that form paths can take path dependence beyond this state of being overdetermined but under specified reviewing three well described cases of path dependent dynamics in technology markets regional clustering and organizations we define a core set of positive feedback mechanisms that constitute path dependence at different analysis levels and clarify the relationship between positive feedback and increasing returns we show that path dependent processes that is processes driven by positive feedback that veer toward rigidity or lock in can be but do not have to be found under many labels including structural inertia coevolution or institutional persistence we conclude that a precise definition of path dependence does not need to be at odds with the concept s widespread use in understanding organizational and industrial development processes copyright 2013 the author 2012 published by oxford university press on behalf of associazione icc all rights reserved oxford university press

russia s innovation policy stubborn path dependencies and new approaches abstract for the last twenty years russia has been struggling to turn itself into an efficient market economy innovation and technological development are considered to be one of the best ways to achieve impressive results the country has succeeded in retaining certain strengths of the soviet science and technology system but it has often failed to address the former weaknesses and emerging challenges there are a number of external and internal factors that make reforms inevitable and urgent in the last five six years the political leadership has started an unprecedented attempt to reverse the negative trends and boost russia s innovation performance this paper studies the new policy approaches and suggests several others that might be considered useful at this stage of the country s development this work contributes to the wider debate on the heterogeneity of national innovation systems and adaptation of the respective analytical approach to the study of technological development of the emerging economies it also provides a detailed review of the literature and data sources on the russian science and technology and aims to start filling in the gap in this seriously understudied research area

a control function approach to endogeneity in consumer choice models abstract endogeneity arises for numerous reasons in models of consumer choice it leads to inconsistency with standard estimation methods that maintain independence between the model s error and the included variables the authors describe a control function approach for handling endogeneity in choice models observed variables and economic theory are used to derive controls for the dependence between the endogenous variable and the demand error the theory points to the relationships that contain information on the unobserved demand factor such as the pricing equation and the advertising equation the authors approach is an alternative to berry levinsohn and pakes s 1995 product market controls for unobserved quality the authors apply both methods to examine households choices among television options including basic and premium cable packages in which unobserved attributes such as quality of programming are expected to be correlated with price without correcting for endogeneity aggregate d

endogeneity in semiparametric binary response models this paper develops and implements semiparametric methods for estimating binary response binary choice models with continuous endogenous regressors it extends existing results on semiparametric estimation in single index binary response models to the case of endogenous regressors it develops a control function approach to account for endogeneity in triangular and fully simulataneous binary response models the proposed estimation method is applied to estimate the income effect in a labor market participation problem using a large micro data set from the british fes the semiparametric estimator is found to perform well detecting a significant attenuation bias the proposed estimator is contrasted to the corresponding probit and linear probability specifications jel c14 c25 c35 j22

models of technology diffusion abstract the literature on new technology diffusion is vast and it spills over many conventional disciplinary boundaries this paper surveys the literature by focusing on alternative explanations of the dominant stylized fact that the usage of new technologies over time typically follows an s curve the most commonly found model which is used to account for this model is the so called epidemic model which builds on the premise that what limits the speed of usage is the lack of information available about the new technology how to use it and what it does the leading alternate model is often called the probit model which follows from the premise that different firms with different goals and abilities are likely to want to adopt the new technology at different times in this model diffusion occurs as firms of different types gradually adopt it there are actually many ways to generate an s curve and the third class of models which we examine are models of density dependence popularized by population ecologists in these models the twin forces of legitimation and competition help to establish new technologies and then ultimately limit their take up finally we look at models in which the initial choice between different variants of the new technology affect the subsequent diffusion speed of the chosen technology such models often rely on information cascades which drive herd like adoption behaviour when a particular variant is finally selected

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

a dynamic demand model for liquor the case for pooling this paper estimates a dynamic demand model for liquor in the united states using panel data from 43 states because of taste changes over time and between states in liquor consumption purely time series or cross sectional studies do not elicit reliable price elasticity estimates this study makes the case for pooling and shows how one can control for individual state effects and endogeneity of the regressors using estimators suited for a dynamic demand model our results indicate that the long run price elasticity is in the 0 7 range the findings also support strong habit persistence a small positive income elasticity and very weak evidence of bootlegging from adjoining states the magnitude of the long run price effect suggests that sin taxes can serve not only as an important income source but also as a significant deterrent effect copyright 1995 by mit press

contracting for tacit knowledge the provision of technical services in technology licensing contracts abstract recent research on the economic payoff from new technology has emphasized the importance of tacit knowledge or know how this paper shows that arm s length contract can overcome the problems in contracting for know how by bundling complementary inputs with know how in a technology package and leveraging the superior enforceability of contracts over the latter in the empirical part of this paper the relationship between bundling and transfer of know how is analyzed using indian data the results imply that tied sales of inputs may increase the efficiency of contracts involving the transfer of know how a striking result in the context of the current north south debates on intellectual property rights is the packaging of patents with know how

networks and innovation in a modular system lessons from the microcomputer and stereo component industries in this paper we examine theoretically and through case studies the phenomenon of the modular system which we distinguish from a product conceived of as a prepackaged entity or appliance we argue that such systems offer benefits on both the demand side and the supply side supply side benefits include the potential for autonomous innovation which is driven by the division of labor and provides the opportunity for rapid trial and error learning demand side benefits include the ability to fine tune the product to consumer needs and therefore blanket the product space more completely both of our case studies suggest that innovation in a modular system can lead to vertical and horizontal disintegration as firms can often best appropriate the rents of innovation by opening their technology to an outside network of competing and cooperating firms we conclude by speculating on the increased importance of modular systems in the future since flexible manufacturing and rising incomes are likely to increase the driving requisites of modular systems low economies of scale in assembly and sophisticated consumer tastes

why and how innovations get adopted a tale of four models scholars studying innovation have proposed several different models of the adoption process this essay identifies two broad dimensions which differentiate the principal models the strength of the evidence regarding an innovation s efficacy and the extent of increasing returns in this essay we propose that differences across these dimensions map to four models of the adoption diffusion process prominent in the literature we then analyze the diffusion patterns of six well studied innovations in terms these variables and discuss which models seems to fit them best

tactical allocation in commodity futures markets combining momentum and term structure signals this paper examines the combined role of momentum and term structure signals for the design of profitable trading strategies in commodity futures markets with significant annualized alphas of 10 14 and 12 66 respectively the momentum and term structure strategies appear profitable when implemented individually with an abnormal return of 21 02 our double sort strategy that exploits both momentum and term structure signals clearly outperforms the single sort strategies this double sort strategy can additionally be utilized as a portfolio diversification tool the abnormal performance of the combined portfolios cannot be explained by a lack of liquidity data mining or transaction costs

systems competition and network effects this paper discusses firm behavior market performance and the public and private institutions that arise in systems markets i e markets where consumers use compatible components together to generate benefits in such markets which include communications networks and hardware software networks popular products are inherently more valuable these network effects can drive corporate strategies and are critical in understanding innovation in many high technology markets the discussion here emphasizes the dynamics of consumer adoption decisions in the presence of network effects competition between incompatible systems and how suppliers choose which components are compatible and which are not

a note on optimal taxation in the presence of externalities abstract i consider the problem of optimal taxation with externalities in a general setup encompassing most of optimal taxation models found in the literature it is demonstrated that when direct taxation of externalities is possible optimal taxes can be expressed as the sum of the optimal pigouvian taxes and the optimal taxes in a related problem without externalities regardless of what other tax instruments are available this result generalizes the so called principle of targeting

striving for a large market evidence from a general purpose technology in action several scholars have tried to focus on growth accounting of specific examples of general purpose technologies gpts but what are the factors that might make a general purpose technology succeed or fail once the invention has been triggered this paper is a preliminary answer to this question and attempts to study gpts from an ex ante perspective trying to understand what is the behaviour and performance of the producer firms and what the factors are that can favour or hamper their diffusion in the application sectors the paper follows a historical perspective on a control technology introduced in the last few decades by a silicon valley start up company

the demand for alcohol the differential response to price although several studies indicate that drinking is responsive to price little work has focused on whether prices have a differential effect on light moderate or heavy drinking this study examines the price responsiveness of the demand for alcohol whether heavy drinkers are less sensitive to price than light or moderate drinkers the study uses data on alcohol consumption on the 1983 national health interview survey the results indicate that both light and heavy drinkers are much less price elastic than moderate drinkers further we cannot reject the hypothesis that the very heaviest drinkers have perfectly price inelastic demands