price versus quantity in a mixed duopoly abstract we revisit the classic discussion of the endogenous choice of a price or a quantity contract but in a mixed duopoly we find that choosing the price contract is a dominant strategy for both firms whether the goods are substitutes or complements

cost reduction competition and industry performance in many markets firms compete over time by expending resources with the purpose of reducing their costs sometimes the cost reducing investments operate directly on costs in many instances they take the form of developing new products that deliver what customers need more cheaply therefore product development can have the same ultimate effect as direct cost reduction in fact if one thinks of the product as the services it delivers to the customer in the way that lancaster pioneered then product development often is just cost reduction

public research and industrial innovations in germany this paper deals with the effects of publicly funded research at universities polytechnics and federal research labs on industrial innovations in germany we discuss the characteristics of companies that benefit from the findings of public research institutions in questioning 2 300 companies we found that less than one tenth of product or process innovating firms introduced innovations between 1993 and 1995 that would not have been developed without public research these new products amount to approximately 5 percent of all new product sales regressions show that firms own r d support the ability to absorb the findings of public research and turn them into innovations contrary to the widely held opinion that proximity to public research institutions does promote collaboration between firms and public research and increase the amount of received knowledge spillovers we found no higher probability of publicly supported innovations for firms in germany that are located near universities or polytechnics

more evidence on nutrition demand income seems overrated and women s schooling underemphasized abstract malnutrition is widespread in the developing world controversy continues concerning the roles of income household size and women s schooling on nutrient demand empirical estimates for nicaragua suggest that income elasticities are small and inversely associated with income levels there are some economies of scale in household size the elasticity for women s schooling is higher than those for income or household size and women s backgrounds are important the results cast doubt on the strong emphasis the world bank and others have placed on income and suggest that schooling may be working through tastes not only through productivity

firm size and r d intensity a re examination using data from the federal trade commission s line of business program and survey measures of technological opportunity and appropriability conditions this paper finds that overall firm size has a very small statistically insignificant effect on business unit r d intensity when either fixed industry effects or measured industry characteristics are taken into account business unit size has no effect on the r d intensity of business units that perform r d but it affects the probability of conducting r d business unit and firm size jointly explain less than one per cent of the variance in r d industry effects explain nearly half the variance two sets of well known hypotheses are associated with the later work of joseph schumpeter the first concerns the effects of market concentration on research and development investment and on innovative performance the second bears on the effects of firm size on r d and innovation in a recent paper levin cohen and mowery 1985 we re examined the first set of hypotheses simple regressions at the line of business level replicated the established findings that both r d intensity and innovative performance first increase and then decrease as industrial concentration rises the effect of concentration however was sharply attenuated when we controlled for interindustry differences in technological opportunity and in the appropriability of returns from new technology our results suggested that it is probably unwarranted to conclude that market concentration favors r d investment and innovation in this paper we investigate the schumpeterian hypothesis that large size is conducive to r d investment this relationship has been studied at least as intensively as the link between concentration and r d but our approach is novel in two respects first using data collected by the federal trade

endogenous timing in duopoly games stackelberg or cournot equilibria abstract simultaneous versus sequential play is studied in an extended game in a preplay stage players decide whether to select actions in the basic game at the first opportunity or to wait until observing their rivals first period actions in one extended game players first decide when to select actions without committing to actions in the basic game the equilibrium has a simultaneous play subgame unless payoffs in a sequential play subgame pareto dominate those payoffs in another extended game deciding to select at the first turn requires committing to an action both sequential play outcomes are the equilibria only in undominated strategies

carbon footprint of a university in a multiregional model the case of the university of castilla la mancha abstract the increasing concern about the environmental performance and sustainability of firms and organizations also involves educational institutions if universities aim to become leaders in sustainability aspects they must adopt strategies that involve the entire university system as a useful tool for this purpose the objective of this study was to calculate the carbon footprint for the university of castilla la mancha for the period 2005 2013 the calculation of the university carbon footprint was accomplished through a hybrid environmentally extended input output model in a multiregional framework which constitutes a novelty of the analysis the proposed tool also allows the calculation of the potential for emissions reduction of abatement measures the carbon footprint induced by the consumption of university employees wages is also undertaken as a way to increase awareness and university outreach to society the results show the relevance of both imports and indirect emissions and highlight the significance of energy related emissions enabled by sectors such as renting electrical and optical equipment manufacturing or even services

are estimates of calorie income fxelasticities too high a recalibration of the plausible range abstract the wide range of calorie income elasticities in the literature results in large part from the particular calorie and income variables used for estimation elasticities across four estimation techniques and four calorie income variable pairs for a sample of philippine farm households ranged from 0 03 to 0 59 estimates associated with calorie availability are biased upwards first because random errors in measuring food purchases are transmitted by construction both to calorie availability and total expenditures and second because the residual difference between family calorie intake and household calorie availability will often increase with income the calorie intake total expenditure variable pair gives the preferred elasticity estimate in the 0 08 0 14 range

academic research and industrial innovation the purpose of this study is to estimate the extent to which technological innovations in various industries have been based on recent academic research and the time lags between the investment in recent academic research projects and the industrial utilization of their findings because no attempt to my knowledge has been made to estimate the social rate of return from academic research we also make some rough and tentative estimates of this sort while the results are subject to many limitations discussed below they should be of interest to public policy makers concerned with science and technology as well as to

the evolving state of the art in technology transfer research revisiting the contingent effectiveness model the purpose of our study is to review and synthesize the rapidly evolving literature on technology transfer effectiveness our paper provides a lens into relatively recent work focusing particularly on empirical studies of us technology transfer conducted within the last 15 years in doing so we update and extend the contingent effectiveness model of technology transfer developed by bozeman 2000 specifically we include the growing interest in social and public value oriented technology transfer and thus the contingent effectiveness model is expanded to consider this literature we categorize studies according their approaches to measuring effectiveness draw conclusions regarding the current state of technology transfer evaluation and offer recommendations for future studies

endogenous price leadership and the strategic acquisition of information we model a differentiated bertrand duopoly in which a firm s earlier knowledge of market demand than its competitor results in endogenous price leadership with the information advantaged firm leading in such a setting with second mover advantage we then study the firms incentives to acquire information and analyze an information acquisition game both i neither firm acquiring information and ii one firm acquiring information can arise as subgame perfect equilibrium but both firms acquiring information is never an equilibrium outcome even if information is free information may have a negative value if it causes a change in the timing of price competition

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

the economic impacts of academic spin off companies and their implications for public policy abstract the importance of academic research ar to economic growth is widely accepted but quantification of incremental impacts and their attribution to any one country s expenditures is difficult yet quantitative justification of government ar funding is highly desirable we therefore attempt to quantify one impact which can be directly and causally attributed to one country s funding spin off companies we focus on ar in the non medical natural sciences and engineering nsexm in a whole country canada applied disciplines are sometimes assumed to be the most commercializable so we also separately investigate an especially basic science physics using a novel methodology we estimate the lifetime impacts of companies spun off directly from ar performed in 1960 1998 and compare the impacts with all government funding direct and indirect over the same period this picks up virtually all funding and most company formation since wwii up to 1998 such long term studies are rare but essential since we show that successful spin offs grow often exponentially over several decades with very conservative assumptions and allowing for the time value of money the impacts exceed government funding by a substantial margin physics actually fares 30 60 better than the combined nsexm this reflects more successful companies rather than greater numbers and therefore does not seem inconsistent with earlier studies on company numbers firm lifetimes are long with canadian impacts truncated primarily by some foreign acquisitions we argue that the spin off impacts represent incremental contributions to gdp much larger even on a time discounted basis than the government funding and directly attributable to it governments will also receive more in additional tax than they spent the impacts therefore provide a quantitative justification for the public investment allowing the much more important but less quantifiable long term benefits to be regarded as a free bonus the very good showing of physics also suggests that reduced emphasis on basic work or on the basic disciplines could actually weaken the commercialization of ar

privatization neutrality theorem revisited fjell and heywood 2004 show that privatization is not necessarily welfare neutral in mixed oligopolies under a production subsidy if firms move sequentially we find that the neutrality holds for any time structure if instead an output floor is introduced

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

institutions supporting technical advance in industry elsewhere 1982 economists beliefs that modern capitalism is a fine innovation generating machine have no intellectual grounding in contemporary neoclassical theory the twin theorems take technologies as given the apparent effectiveness of capitalism in this arena must reside in characteristics and mechanisms other than those featured in the microeconomic theory textbooks in our book we attempt to analyze these it also is true that the capitalist engine is a much more complicated one than many economists seem to think i presently am

the economic impact of canadian university r d abstract canadian university research expenditures and those of graduate students produce a gross static economic impact upon the canadian gross domestic product gdp which considerably overestimates the net static impact of university research moreover the net static impact because it keeps constant the economic structure and the productivity of factors of production does not account for the principal beneficial impact of university research the building of human capital and the transfer of knowledge technology all of this leads to an increase in productivity and thus in the size of the gdp this effect is called the dynamic impact this article besides comparing succinctly the gross impact with the net static impact develops a practical method to measure the dynamic impact of university research in a way this method provides another benchmark besides the peer review to judge the relevance of university r d

the effect of the value of time on food consumption patterns in developing countries evidence from sri lanka this study shows that the opportunity cost of women s time can affect household food consumption patterns in developing countries demand equations for rice bread and the ratio of bread to total cereal consumption are estimated for urban sri lankan households the demand specification which is based on the new household economics includes as explanatory variables the woman s estimated market wage and the household s full income and alternatively observed income wages are estimated using the heckman procedure to correct for sample selection bias

mixed duopoly privatization and subsidization with excess burden of taxation we investigate optimal tax subsidy policies in mixed and private oligopolies with excess burden of taxation we compare the optimal subsidies and the resulting welfare levels among four regimes mixed and private cournot duopolies and stackelberg competition with public and private leaderships we show that in contrast to the existing works on the privatization neutrality theorem privatization affects resulting welfare duopole mixte privatisation et subsidisation en presence de fardeau fiscal excedentaire on examine les politiques optimales de taxes et de subventions dans le cas d oligopoles mixtes et prives en presence de fardeau fiscal excedentaire on compare les subsides optimaux et les effets sur le niveau de bien etre dans quatre regimes les duopoles de cournot mixte et prive et la concurrence a la stackelberg avec leadership public et prive on montre que contrairement a ce que suggeraient les travaux anterieurs sur le theoreme de la neutralite de la privatisation la privatisation affecte les niveaux de bien etre

second mover advantage and price leadership in bertrand duopoly we consider the issue of first versus second mover advantage in differentiated product bertrand duopoly with general demand and asymmetric linear costs we generalize existing results for all possible combinations where prices are either strategic substitutes and or complements dispensing with common extraneous and restrictive assumptions we show that a firm with a sufficiently large cost lead over its rival has a first mover advantage for the linear version of the model we invoke a natural endogenous timing scheme coupled with equilibrium selection according to risk dominance the analysis yields as the unique equilibrium outcome sequential play with the low cost firm as leader

a transaction costs analysis of innovations in the organization of pharmaceutical r d abstract this paper uses transaction costs economics to analyze the increasing importance of vertical disintegration of r d by large pharmaceutical and chemical firms first it discusses three characteristics of the research based pharmaceutical industry then it shows that market failures related to long term joint venture r d contracts between firms and university laboratories are less significant than appears at first and may account for their striking increase over the past fifteen years

joint determination of food consumption and production in rural sierra leone estimates of a household firm model abstract this paper investigates the determination of food consumption for rural households in sierra leone that produce the foods which they consume a household firm model is estimated with seven commodities including five foods non foods and labor as compared to three commodities in past studies such food disaggregation permits tracing of the effects of socioeconomic variables on household nutrient availability household specialization in production is such that censored data is a problem a tobit approach is used to correct for this for most crops the own price effects on consumption remain negative when a price change is allowed to shift the budget constraint by effecting the profits from home production elasticities of calorie availability with respect to toal expenditure are found to be sizeable varying little by expenditure group the price elasticities of calorie availability are generally positive however an important exception occurs for price of the staple food rice this exception has several important policy implications which are explored

in defence of the linear model an essay this essay discusses the strength and weaknesses of the so called linear model lm of innovation it is a reaction to the habit of criticising it as over simplistic mechanistic or simply blatantly wrong we argue that while some criticisms are of course well grounded many others are instead based on loose interpretations and unwarranted assumptions in order to separate the wheat from the chaff this essay first presents a comprehensive description of the linear model and differentiates it from the caricature many refer to second we discuss the main criticisms put forward and argue that many of them are not at all destructive but can be easily accepted within a refined version of the lm third we discuss the policy implications often derived or said to derive from the lm to argue that the lm itself is distinctively policy neutral other assumptions have to be added to justify alternative policy implications

comparing bertrand and cournot in mixed markets abstract we revisit the classic comparison between bertrand and cournot outcomes in a mixed market with private and public firms the results are often strikingly different and opposite to the ones obtained from a similar comparison in the standard setting with all profit maximizing firms

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

globalisation of knowledge production and regional innovation policy supporting specialized hubs in the bangalore software industry abstract this paper is concerned with the changing role of regional innovation systems and regional policies in supporting the transition of indigenous firms in developing countries from competing on low costs towards becoming knowledge providers in global value chains special attention is paid to policies supporting the emergence and development of the regional innovation system in this transition process regional innovation systems in developing countries have very recently started to be conceptualised as specialized hubs in global innovation and production networks asheim b coenen l vang lauridsen j 2007 face to face buzz and knowledge bases socio spatial implications for learning innovation and innovation policy environment and planning c government and policy 25 5 655 670 chaminade c vang j 2006a innovation policy for small and medium size smes in asia an innovation systems perspective in yeung h ed handbook of research on asian business edward elgar cheltenham maggi c 2007 the salmon farming and processing cluster in southern chile in pietrobello c rabellotti r eds upgrading and governance in clusters and value chains in latin america harvard university press a specialized hub refers to a node in a global value chain that mainly undertakes one or a few of the activities required for the production and development of a given good or service or serves a particular segment of the global market in global value chains firms in developing countries have traditionally been responsible for the lowest added value activities however a few emerging regional innovation systems in developing countries are beginning to challenge this scenario by rapidly upgrading in the value chain there is however still only a poorly developed understanding of how the system of innovation emerges and evolves to support this transition process and what the role of regional innovation policy is in building the regional conditions that support indigenous small and medium size enterprises smes in this transition process this paper aims at reducing this omission by analyzing the co evolution of the strategies of indigenous smes and the regional innovation system of bangalore india

universities as engines of r d based economic growth they think they can two issues raised by increased participation of universities in equity arrangements designed to commercialize faculty research are addressed a the effects that an increased emphasis on patenting faculty research and on enhancing the commercial value of these patents has on the characteristics of academic research net revenue streams and existing channels through which academic research enters the market and b processes of institutional change and imitation whereby changes in the policies of elite research universities exert competitive and emulative pressures on other institutions increased efforts by universities to foster the commercialization of technological innovations erodes the singular position of institutions of higher learning in the united states based on past performance there is little reason to expect that a substantial reallocation of faculty effort towards commercially oriented r d will generate appreciable net revenues for other than a select number of universities these ventures also serve to shift academic researchers from the social roles in which they are most efficient as suppliers of a collective goodscientific and technological knowledge just as very few men are both capable business managers and ingenious inventors so few are at the same time ingenious inventors and exalted altruists some twenty years ago a university professor devised a method for measuring with accuracy the content of butterfat in milk the device if patented would doubtless have yielded him a very handsome income the inventor gave it freely to the public saying modestly that to do so was but part of his duty as a servant of the people and it has come into use the world over we call his conduct noble but our very recognition of its nobility is an admission of its rarity f w taussig inventors and money makers 1915 58

will developing country nutrition improve with income a case study for rural south india aggregate estimates of food expenditure are consistent with such a possibility implying income expenditure elasticities close to one however the high degree of aggregation at which such estimates are made means that the considerable increase in price per nutrient as income increases is ignored and the nutrient elasticities are therefore overstated estimates for a rural south indian sample indicate that this bias is considerable and that the true nutrient elasticities with respect to income may be close to zero

endogenous role in mixed markets a two production period model in this paper i investigate endogenous roles in a mixed duopoly where private and state owned public firms compete by allowing two production periods i find that many equilibria exist including the cournot type equilibrium and one stackelberg type equilibrium where the public firm becomes the follower however another stackelberg type equilibrium where the public firm becomes the leader does not exist if small inventory costs are introduced the unique equilibrium outcome becomes the stackelberg type where the public firm is the follower

endogenous price leadership we consider a linear price setting duopoly game with differentiated products and determine endogenously which of the players will lead and which one will follow while the follower role is most attractive for each firm we show that waiting is more risky for the low cost firm so that consequently risk dominance considerations as in harsanyi and selten a general theory of equilibrium selection in games mit press cambridge ma 1988 allow the conclusion that only the high cost firm will choose to wait hence the low cost firm will emerge as the endogenous price leader

welfare consequence of an asymmetric regulation in a mixed bertrand duopoly abstract i investigate an asymmetric duopoly where a public enterprise must supply the demand it faces while a private enterprise has no such obligation i show that such an asymmetric regulation yields the first best outcome walrasian equilibrium

csr in an asymmetric duopoly with environmental externality we investigate a linear state differential game describing an asymmetric cournot duopoly with capacity accumulation a la ramsey and a negative environmental externality pollution in which one of the firms has adopted corporate social responsibility csr in its statute and therefore includes consumer surplus and the environmental effects of production in its objective function if the market is sufficiently large the csr firm sells more accumulates more capital and earns higher profits than its profit seeking rival

the economic impact of licensed commercialized inventions originating in university research abstract the purpose of this article is to estimate quantitatively the contribution that university licensing makes to the national u s economy as regions and nations face increased economic problems they seek ways to augment opportunities for economic growth and to identify areas where public funding can be cut it is now well recognized that the research university can be a significant engine of economic growth and job creation university research and research related activities contribute in many important ways to modern economies notably through increased productivity of applied rd provision of highly valued human capital embodied in faculty and students development of equipment and instrumentation used by industry in production and research and creation of concepts and prototypes for new products and processes which may have some unexpected and large social and economic impacts yet clear documentation of the proportional contributions these make to economic growth remains elusive this article provides detailed estimates of the economic impact on the u s national economy of one core university activity licensing of university inventions to industry our approach combines licensing data for u s universities with national input output i o model coefficients and provides more valid and complete estimates of the national economic impacts of university licensing of intellectual property than have previously been available our results estimate national economic impact expressed as annual increases in gross domestic product gdp in total industry output and employment generated over a 15 year period summing over the entire 15 years for which we have data 1996 2010 we estimate that assuming no product substitution effects and a 2 10 royalty fee the total contribution of university licensing to gross industry output is at least 162 1 billion and as much as 686 9 billion 2005 dollars estimates based on 5 royalty rates yields an estimated impact of 293 3 billion 2005 dollars over the period assuming 2 royalty fees and no product substitution effects we estimate that over a 15 year period university licensing agreements based on product sales contributed at least 70 5 billion and as much as 277 6 billion 2005 dollars to the u s gdp with a moderately conservative estimate based on 5 royalty rates such agreements contributed more than 122 2 billion 2005 dollars the i o model also calculates the number of jobs person years of employment directly created or supported per million dollars of final purchases estimates of the total number of additional jobs created as a function of year due to university licensed products assuming no product substitution effects ranged from about 7000 jobs in 1996 to 23 000 in 2010 or more than 277 000 person years of employment over the entire 15 year period because of uncertainty we also provide estimates of the economic impact of university licensing income based on a range of product substitution rates 5 10 and 50 the magnitude of the estimated impact depends significantly on the assumptions made for example the royalty fees and substitution rates but even the most conservative yet reasonable assumptions yield estimates of very large impacts on gdp industry output and employment major discoveries emanating from academic and or publicly funded research have had enormous global economic and social impacts that are obvious but difficult to predict and quantify e g google the world wide web nanotechnologies etc although this article examines the economic impact of only a select technology transfer activity it nevertheless offers quantitative evidence that the economic impact of university research and technology transfer activities is significant

firms transfer strategies with universities and the relationship with firms innovation performance based on a representative sample of swiss firms we empirically investigated strategies for knowledge and technology transfer ktt activities between business firms and universities as well as other public research institutions based on a cluster analysis of 19 different forms for ktt three types of ktt strategies were identified they were significantly correlated mainly to i the absorptive capacity of a firm ii several factors hampering ktt activities and iii some characteristics of the transfer process such as the number of partners the existence of contacts to foreign universities and the utilization of the mediating services of transfer offices furthermore it was found that ktt strategies related to the core transfer activities such as r d contracts are stronger correlated with innovation performance compared to strategies related to softer transfer forms copyright 2009 the author 2009 published by oxford university press on behalf of associazione icc all rights reserved oxford university press

the effects of data collection methods on calorie expenditure elasticity estimates a study from the dominican republic abstract using data from a nationally representative household survey in the dominican republic we find that the estimates of calorie expenditure elasticity vary widely depending upon the form of calorie variable used estimated elasticity is lower for calories purchased than for calories prepared for consumption in the home the divergence between the estimates increases at higher income levels there is a downward bias in the estimates obtained from purchase data due to some missing information on infrequent bulk purchases and greater memory lapse in recalling purchases we conclude that surveys undertaken to estimate calorie income elasticity should measure calories from consumption data if purchase data are used the period of recall should be flexible and defined by the respondent for each commodity so that infrequent purchases are captured survey methods should be standardized if elasticity estimates are to be compared across populations

asymmetric intrahousehold allocation of calories in china to analyze intrahousehold calorie allocation we propose a new framework that takes into account asymmetric consumption behavior due to liquidity constraints and loss aversion we find that intrahousehold calorie allocation responds asymmetrically to expected declines and increases in household food availability in china compared with previous studies based on symmetric consumption behavior our framework provides stronger evidence of gender bias in intrahousehold calorie allocation among children in urban areas and among elderly people in rural areas and of demographic bias between girls and prime age adults in both urban and rural areas implications for demographic targeting in nutrition programs are discussed copyright 2010 oxford university press

the globalization of r d results of a survey of foreign affiliated r d laboratories in the usa abstract this paper examines the globalization of innovation and the phenomenon of foreign direct investment fdi in research and development to do so it draws from a survey of foreign affiliated r d laboratories in the united states while the literature on foreign direct investment has emphasized the role of markets in driving off shore investments the main conclusion of this research is that the globalization of innovation is driven in large measure by technology factors of particular importance is the objective of firms to secure access to scientific and technical human capital

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

invention and innovation in the chemical industry demand pull or discovery push abstract this paper describes a study of the determinants of the rate direction and scale of inventive and innovative activity in the chemical industry over the period 1830 1980 statistical data are interpreted in the light of case study material in three major sectors dyestuffs plastics and pharmaceuticals theories of technical change and economic growth particularly those of schmookler and schmpeter are examined in relation to this material on the chemical industry the findings suggest that the importance of demand pull and discovery push factors and the validity of schmookler s and schumpeter s theories vary over an industry s life cycle

partial privatization in mixed duopoly abstract we investigate a quantity setting duopoly involving a private firm and a privatized firm jointly owned by the public and private sectors the private firm maximizes profits while the privatized firm takes both profits and social welfare into consideration we consider how many shares the government should hold in the privatized firm we find that neither full privatization the government does not hold any shares nor full nationalization the government holds all of the shares is optimal under moderate conditions

liberalization outward orientation and in house r d activity of multinational and local firms a quantitative exploration for indian manufacturing abstract in an increasingly globalizing and knowledge based world economy the declining importance of r d activity in india is a matter of concern this paper analyzes the determinants of r d behaviour of indian enterprises over the 1990s in the context of the reforms of 1991 and their impact on the r d behaviour of mne affiliates and local enterprises the analysis suggests that although average levels of spending have fallen increased competition due to liberalization seems to have pushed local firms to rationalize their r d activity and make it more efficient also r d spending seems to rise more than proportionally with firm size after a certain threshold level has been reached the analysis brings out differences in the nature of r d activity of mne affiliates and local firms local firms direct their r d activity primarily towards the assimilation of imported technology and to providing a backup to their outward expansion via exports and fdi mne affiliates on the other hand focus on exploiting the advantages of india as an r d platform for their parents the paper is concluded with some policy implications of the findings

corporate social responsibility or payoff asymmetry a study of an endogenous timing game we revisit an endogenous timing game by introducing corporate social responsibility into firms payoffs previous research investigates an endogenous timing game in a mixed oligopoly wherein one welfare maximizing public firm competes against profit maximizing private firms it shows that the outcome is completely different from that of private oligopoly in contrast to its result we find that this change in payoff does not matter as long as the payoffs are symmetric our result indicates that asymmetry and not welfare concerning objectives yields specific results in the literature on mixed oligopoly

does it matter how we survey demand for food evidence from kenya and the philippines abstract this article examines the reliability of food quantity information collected from expenditure surveys and finds that measurement errors will very often be systematically correlated with income such that the response of food intakes to increases in income is seriously overstated this may be firstly because food quantities are not measured independently of income if total expenditures are the proxy used for income and secondly because food transfers in the form of guest and hired worker meals are under recorded these biases are illustrated using household surveys from kenya and the philippines

is there curvature in the slutsky matrix d o the poor substitute among commodities more flexibly than the rich when relative prices change even when compensated for the income effects of the price changes is it necessary to add a third dimension to the slutsky substitution matrix to identify household income in short do the terms of the slutsky elasticity matrix curve smoothly from poor households to rich households in such a way that equation 1 is meaningful

product innovation product market competition and persistent profitability in the u s pharmaceutical industry increasingly strategy scholars are exploring the relationships between innovation competition and the persistence of superior profits sustained high profitability may result when a firm repeatedly introduces valuable innovations that service previously unmet consumer demands while the returns to the firm from each innovation may erode over time innovation ensures that overall the firm maintains a high performance position at the same time sustained high profitability may also accrue to firms that innovate less often but effectively avoid the competition that otherwise erodes high returns this paper elaborates these relationships before presenting an empirical analysis of the effects of differential innovative propensities and differential rates of competition on pharmaceutical firms abilities to sustain profit outcomes that are above those earned by competing firms the analysis which is situated within the u s pharmaceutical industry finds support for the expected relationship between high innovative propensity and sustained superior profitability but no support for a link between persistence and the ability to avoid competition copyright 1999 john wiley sons ltd

rising food prices and undernourishment a cross country inquiry households welfare in developing countries has been hit by dramatic food prices increases which occurred between 2005 and 2008 in this paper we adopt a partial equilibrium approach to analyze the short time effects of a staple food price increase on nutritional attainments as a measure of welfare the analysis consists of first approximating complete food demand systems and then performing household level micro simulations instead of focusing on a single country profile we provide a more complete snapshot by comparing the evidence through a cross country assessment made possible by the use of nationally representative household surveys comparability is assured by the adoption of the same methodological choices in the treatment of the micro data we find that food price spikes not only reduce the mean consumption of dietary energy but also worsen the distribution of food calories further deteriorating the nutritional status of populations we also discovered that access to agricultural land plays a significant role in ensuring adequate nutritional attainments in rural areas and surprisingly even in urban areas

the roles of science in technological innovation abstract one of the central issues in science policy during the past decade has been the extent to which the national levels of expenditure on scientific education and research influence the standard of living this paper provides empirical evidence to show that the pay off from this investment in science is more complex and indirect than previously supposed

encouraging university entrepreneurship the effect of the bayh dole act on university patenting in the united states abstract universities are seen as a source of technology development that is useful to entrepreneurial activity as a result policy makers often consider mechanisms to stimulate technology commercialization at research universities as a way to encourage entrepreneurial activity in a region however the transfer of technology from universities to the private sector requires the exploitation of markets for knowledge which are fraught with difficulty arrow k 1962 economic welfare and the allocation of resources for inventions in nelson r ed the rate and direction of inventive activity princeton nj princeton univ press this article examines the effect of one u s public policy initiative the bayh dole act in the united states on one aspect of technology commercialization university patenting specifically the article explores the university share of patents from 1969 through 1996 across 117 lines of business and shows that the effectiveness of licensing in a line of business is significantly correlated with university share of patents in the post bayh dole period but not in the pre bayh dole period these results suggest that the bayh dole act provided incentives for universities to increase patenting in those fields in which licensing is an effective mechanism for acquiring new technical knowledge the paper discusses the implications of this shift in patenting for research and public policy

regional economic impacts of federal r d by funding source and performer type hicks d a and lee s g 1994 regional economic impacts of federal r d by funding source and performer type reg studies 28 619 632 guided by persistent spatial and sectoral concentration of federal r d we find that while defence r d is stimulative funds flowing to non defence non profit and educational research institutions are more so effects are stronger in larger metro scale regions and in local economies in which manufacturing accounts for greater shares of total employment moreover federal r d flows appear to have local investment effects as indicated by their capacity to accelerate the rate of local employment expansion in the total technology intensive tti subsector in which r d intensive goods account for significant portions of inputs and final output hicks d a et lee s g 1994 les impacts economiques regionaux des depenses de r et d federales suivant l origine et la destination des fonds reg studies 28 619 632 pilote par la concentration geographique et sectorielle des d

endogenous timing in a mixed oligopoly abstract endogenous order of moves is analyzed in a mixed oligopoly where the firms first choose the timing for choosing their quantities the results are strikingly different from those obtained in a corresponding oligopoly with all profit maximizing firms

the international economics of intellectual property right protection a welfare theoretic trade policy analysis abstract this paper provides an analytical construct for examining the trade policy effects of greater intellectual property protection in technology importing countries it is shown that two types of conflict are likely to arise between net technology importers and exporters the first relates to the level of protection with importers preferring a low level and exporters a high one the second conflict hitherto unexplored relates to the manner of protection with importers likely to prefer discriminatory regimes favoring local r d creation whereas exporters would prefer nondiscriminatory protection in importing countries

scientific linkages and firm productivity panel data evidence from taiwanese electronics firms using a panel of electronics firms listed on the taiwan stock exchange this paper explores the spillover of scientific research to the private sector by looking at the impact of the intensity a patent s backward citation of scientific publications relative to citation of other patents on the patent owning firm s productivity to identify the causal effect we use measures of a firm s financial constraints as instrumental variables to account for the potential endogeneity of scientific citation intensity of a patent the empirical results suggest that the citation of scientific publications by a patent has a strong and positive effect on the patent owning firm s productivity

cost reducing and demand creating r d with spillovers this article analyzes r d policies when the returns to cost reducing and demand creating r d are imperfectly appropriable and market structure is endogenous we generalize previous characterizations of appropriability to permit the possibility that own and rival r d are imperfect substitutes we also describe how equilibrium expenditures on process and product r d as well as equilibrium market structure depend on technological opportunities and spillovers in contrast to previous work diminished appropriability does not necessarily reduce r d expenditures for example under some conditions an increase in the extent of process product spillovers will lead to an increase in product process r d we estimate several variants of the model by using manufacturing line of business data and data from a survey of r d executives